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Table

Model	Description	Domain	Dimension	Scale	Code status	First name
1D Hillslope MCMC	Monte Carlo chain of 1D non-linear diffusion hillslope model to find most likely boundary conditions	Terrestrial	1D	Reach-Scale	As is, no updates are provided	Martin
1D Particle-Based Hillslope Evolution Model	1D probabilistic, particle-based model of hillslope evolution for studying hillslope equilibration and response to perturbations.	Coastal Geodynamic Terrestrial	1D	Landscape-Scale Reach-Scale Watershed-Scale		Jacob
1DBreachingTurbidityCurrent	1D Breaching Turbidity current model for generating continuous turbidity currents	Coastal	1D	Watershed-Scale		Esther
2DFLOWVEL	Tidal & wind-driven coastal circulation routine	Coastal	2D		As is, no updates are provided	Rudy
ACADIA	A finite element formulation of the non-conservative form of the vertically integrated advection/diffusion/reaction (ADR) equation	Marine	3D	Regional-Scale		Wendy
ADCIRC	Coastal Circulation and Storm Surge Model	Coastal	2D 3D	Landscape-Scale Regional-Scale	Active	Rick
ADI-2D	Read note in extended description. Advection Diffusion Implicit (ADI) method for solving 2D diffusion equation	Terrestrial	2D		As is, no updates are provided	Jon
ALFRESCO	Alaskan Frame‐based Ecosystem Code	Cryosphere Ecosystems	2D	Regional-Scale	Active	Alec
AR2-sinuosity	Generates planforms for single-thread channel using a second-order autoregressive model	Hydrology Planetary landforms Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale	Only maintenance	Ajay
ATS (The Advanced Terrestrial Simulator)	The Advanced Terrestrial Simulator (formerly sometimes known as the Arctic Terrestrial Simulator) is a code for solving ecosystem-based, integrated, distributed hydrology.	Cryosphere Hydrology Terrestrial	1.5D 1D 2D 3D	Grain-Scale Landscape-Scale Patch-Scale Point-Based Reach-Scale Watershed-Scale	Active	Ethan
Acronym1	E-book: program for computing bedload transport in gravel rivers.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
Acronym1D	E-book: program for computing bedload transport in gravel rivers over time.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
Acronym1R	E-book: program for computing bedload transport in gravel rivers with a Manning-Strickler relation for flow resistance.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AeoLiS	AeoLiS is a process-based model for simulating aeolian sediment transport in situations where supply-limiting factors are important, like in coastal environments.	Terrestrial	1D 2D	Reach-Scale	Active	Bas
AgDegBW	E-book: Calculator for aggradation and degradation of a river reach using a backwater formulation.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AgDegNormGravMixPW	E-book: calculator for aggradation and degradation of sediment mixtures in gravel-bed streams	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AgDegNormGravMixSubPW	E-book: calculator for evolution of upward-concave bed profiles in rivers carrying sediment mixtures in subsiding basins.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AgDegNormal	E-book: illustration of calculation of aggradation and degradation of a river reach using the normal flow approximation.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AgDegNormalFault	E-book: Illustration of calculation of aggradation and degradation of a river reach using the normal flow approximation; with an extension for calculation of the response to a sudden fault along the reach.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AgDegNormalGravMixHyd	E-book: A module that calculates the evolution of a gravel bed river under an imposed cycled hydrograph.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AgDegNormalSub	E-book: Program to calculate the evolution of upward-concave bed profiles in rivers carrying uniform sediment in subsiding basins.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
AlluvStrat	Rules-based model to generate a 2-dimensional cross section of alluvial stratigraphy based on fluvial processes	Coastal Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale		Andy
Alpine3D	3D model of alpine surface processes	Cryosphere Terrestrial	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Mathias
Anuga	ANUGA is a hydrodynamic modelling tool that allows users to model realistic flow problems in complex 2D geometries.	Hydrology	2D	Regional-Scale	Active	Nariman
AnugaSed	Add-on package to ANUGA with modules for sediment transport and vegetation drag	Hydrology Terrestrial	2D	Patch-Scale Reach-Scale		Mariela
ApsimX	The Agricultural Production Systems sIMulator (APSIM)	Terrestrial	1D	Regional-Scale	Active	Dean
AquaTellUs	Fluvial-dominated delta sedimentation model	Coastal Terrestrial	2D	Regional-Scale	As is, no updates are provided	Irina
Area-Slope Equation Calculator	Pixel scale Area-Slope equation calculator	Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale	As is, no updates are provided	Sagy
Auto marsh	Cellula automata model for salt marsh evolution with variable soil resistance under wind waves attack	Coastal	2D	Landscape-Scale Watershed-Scale		Nicoletta
Avulsion	Stream avulsion model	Coastal Hydrology	1D	Watershed-Scale	As is, no updates are provided	Eric
BEDLOAD	Bedload transport model	Terrestrial			As is, no updates are provided	Rudy
BITM	Barrier Island Translation model	Coastal				Riccardo
BOM	Bergen Ocean Model	Coastal Marine	1D 2D 3D	Continental Grain-Scale Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Jarle
BRaKE	Computes evolution of a bedrock river longitudinal profile in the presence of large, hillslope-derived blocks.	Terrestrial	1D	Reach-Scale Watershed-Scale	As is, no updates are provided	Charles
BTLESS	Regional Ecological Model for Coastal Wetlands	Coastal				Enrique
BackwaterCalculator	E-book: program for backwater calculations in open channel flow	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
BackwaterWrightParker	E-book: calculator for backwater curves in sand-bed streams, including the effects of both skin friction and form drag due to skin friction	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
Badlands	Basin and landscape dynamics	Climate Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Tristan
Barrier Inlet Environment (BRIE) Model	Coastal barrier island transgression model	Coastal	2D	Landscape-Scale Regional-Scale	Active	Jaap
Barrier3D	A spatially explicit model of coastal barrier evolution	Coastal Ecosystems	2D	Landscape-Scale Reach-Scale Watershed-Scale	Active	Ian
BarrierBMFT	Barrier-Bay-Marsh-Forest Transect Coupled Model Framework	Coastal Ecosystems	1D	Landscape-Scale	As is, no updates are provided	Ian
BatTri	A graphical Matlab interface to the C language 2-D quality finite element grid generator Triangle.	Coastal Marine	2D	Regional-Scale		Jonathan
Bedrock Erosion Model	Read note in extended description. Knickpoint propagation in the 2D sediment-flux-driven bedrock erosion model	Terrestrial			As is, no updates are provided	Jon
Bedrock Fault Scarp	This is a two-dimensional numerical model that computes the topographic evolution of the facet slope in the footwall of an active normal fault.	Geodynamic Terrestrial	2D	Reach-Scale Watershed-Scale	Active	Greg
BedrockAlluvialTransition	E-book: calculator for aggradation and degradation with a migrating bedrock-alluvial transition at the upstream end.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
Bifurcation	Flow-partitioning and avulsion in a river delta bifurcation	Coastal	1.5D	Landscape-Scale		Gerard
Bing	Submarine debris flows	Marine			As is, no updates are provided	Eric
Bio	Biogenic mixing of marine sediments	Marine			As is, no updates are provided	Eric
BlockLab	BlockLab computes landscape evolution in the presence of large blocks of rock on hillslopes and in channels.	Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale	As is, no updates are provided	Charles
CAESAR Lisflood	Caesar Lisflood is a morphodynamic / Landscape evolution model that simulates erosion and deposition in river catchments and reaches over time scales from hours to 1000's of years.	Hydrology Terrestrial	2D	Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Tom
CAM-CARMA	A GCM for Titan that incorporates aerosols	Terrestrial			Active	Eric
CASCADE	Large scale SPM based on irregular spatial discretization	Terrestrial				Jean
CBIRM	Coupled Barrier Island-Resort Model	Coastal				Dylan
CBOFS2	The Second Generation Chesapeake Bay Operational Forecast System (CBOFS2): A ROMS‐Based Modeling System	Marine				Lyon
CELLS	Landscape simulation model	Coastal				Fred
CEM	Coastline evolution model	Coastal	1D	Landscape-Scale	Active	A. Brad
CHILD	Landscape Evolution Model	Terrestrial	3D		Only maintenance	Greg
CICE	Los Alamos sea ice model	Cryosphere Marine	2D	Global	Active	Elizabeth
CLUMondo	The CLUMondo model is a spatially explicit and dynamics land system change model	Terrestrial	2D	Global	Active	Peter
CMFT	Coupled salt Marsh - tidal Flat Transect model	Coastal	1D		As is, no updates are provided	Giulio
CMIP	Data component provides monthly mean temperature for Permafrost Region 1902-2100	Climate Cryosphere	2D	Continental	As is, no updates are provided	Irina
CREST	The Coupled Routing and Excess STorage (CREST) model is a distributed hydrologic model developed to simulate the spatial and temporal variation of atmospheric, land surface, and subsurface water fluxes and storages by cell-to-cell simulation.	Hydrology	2D	Continental Regional-Scale	Active	Jiahu
CSt ASMITA	Aggregate scale morphodynamic model of integrated coastal systems	Coastal Marine				Alan
CVFEM Rift2D	multi-physics numerical model that simulates rock deformation, fluid flow, solute transport and heat transfer in response to ice sheet loading of multiple cycles	Geodynamic Hydrology	2D	Continental	Active	Yipeng
CVPM	Multidimensional heat-transfer modeling system for permafrost with advanced unfrozen water physics	Cryosphere Terrestrial	1D 2D 3D	Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Gary
Caesar	Cellular landscape evolution model	Terrestrial				Tom
CarboCAT	Carbonate cellular automatacyclicity	Carbonates and Biogenics			Active	Peter
CarboLOT	Population-ecology based model of shallow-ocean benthic carbonate accumulation	Carbonates and Biogenics Marine	3D	Global Patch-Scale		Chris
CellularFanDelta	Coarse-grained delta dynamics and stratigraphy	Coastal Terrestrial	3D			Matthew
Channel-Oscillation	Read note in extended description. Simulates Oscillations in arid alluvial channels	Hydrology Terrestrial	1D	Landscape-Scale	As is, no updates are provided	Jon
ChannelProfiler	The ChannelProfiler extracts and plots channel networks from a landlab grid.	Terrestrial	1D	Landscape-Scale Regional-Scale Watershed-Scale		Katy
ChesROMS	Chesapeake Bay ROMS Community Model (ChesROMS), special case of ROMS	Marine				Wen
Chi analysis tools	Tool for examining channel profiles in chi-elevation space using the integral method of channel analysis	Terrestrial	1.5D	Landscape-Scale Regional-Scale Watershed-Scale		Simon
ChiFinder	Calculate Chi Indices	Terrestrial	1D	Landscape-Scale Regional-Scale Watershed-Scale		Daniel
Cliffs	Numerical model to compute tsunami propagation and runup on land in the shallow-water approximation	Coastal Marine	1D 2D	Continental Global Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Elena
CoAStal Community-lAnDscape Evolution (CASCADE) model	A coupled landscape and human-dynamics modeling framework for barrier evolution	Coastal Human dimensions	3D	Landscape-Scale	Active	Katherine
CoastMorpho2D	Long term 2D morphodynamics of coastal areas	Coastal	2D 3D	Landscape-Scale	Active	Giulio
Coastal Dune Model	Evolution of Coastal Foredunes	Coastal Terrestrial	2D	Reach-Scale	Active	Orencio
Coastal Landscape Transect Model (CoLT)	Geomorphic and carbon evolution of a bay-marsh-forest coastal transect	Coastal Ecosystems	1D	Landscape-Scale	As is, no updates are provided	Kendall
Compact	Sediment compaction	Marine			As is, no updates are provided	Eric
CosmoLand	2-D model tracking cosmogenic nuclides and mixing in landslide terrain	Terrestrial	2D			Brian
Coupled1D	Read note in extended description. Coupled 1D bedrock-alluvial channel evolution	Terrestrial	1D		As is, no updates are provided	Jon
CrevasseFlow	The module calculates crevasse splay morphology and water discharge outflow of a crevasse splay.	Terrestrial	1D	Landscape-Scale		Yunzhen
Cross Shore Sediment Flux	Cross-Shore Sediment Flux Equations	Coastal	1D	Landscape-Scale		Alejandra
CruAKTemp	cruAKtemp is a data component to access a subsample of CRU NCEP data temperature for Alaska	Climate	2D	Regional-Scale		Scott
CryoGrid3	CryoGrid 3 is a simple land-surface scheme dedicated to modeling of ground temperatures in permafrost environments.	Cryosphere Terrestrial	1D	Reach-Scale	Active	Sebastian
Cyclopath	A 2D/3D model of carbonate cyclicity	Marine	2D 3D		As is, no updates are provided	Peter
D'Alpaos model	Tidal network and marsh model	Coastal				Andrea
DECAL	Aeolian dune landscape model	Coastal Terrestrial				Andreas
DELTA	Simulates circulation and sedimentation in a 2D turbulent plane jet and resulting delta growth	Coastal	2D		As is, no updates are provided	Rudy
DFMFON	Spatially-Explicit Mangrove-Mudflat Dynamic Model	Coastal	2D	Landscape-Scale Watershed-Scale	Only maintenance	Sebrian
DHSVM	DHSVM is a distributed hydrologic model that explicitly represents the effects of topography and vegetation on water fluxes through the landscape.	Hydrology Terrestrial	2D	Continental Regional-Scale	Active	Administrator
DLBRM	Distributed Large Basin Runoff Model	Hydrology	2D	Watershed-Scale		Thomas
DR3M	Distributed Routing Rainfall-Runoff Model--version II	Hydrology Terrestrial				Geological Survey
DROG3D	3-DIMENSIONAL DROGUE TRACKING ALGORITHM FOR A FINITE ELEMENT GRID WITH LINEAR FINITE ELEMENTS	Coastal Marine	3D	Regional-Scale		Brian
Dakotathon	A Python API for the Dakota iterative systems analysis toolkit.	Climate Coastal Geodynamic Hydrology Marine Terrestrial	1.5D 1D 2D 3D	Continental Global Grain-Scale Landscape-Scale Patch-Scale Point-Based Reach-Scale Regional-Scale Watershed-Scale	Active	Mark
DbSEABED Data Component	A CSDMS data component used to download the marine substrates datasets from the dbSEABED system.	Carbonates and Biogenics Coastal Ecosystems Marine	2D	Global Regional-Scale	Only maintenance	Tian
Delft3D	3D hydrodynamic and sediment transport model	Coastal Hydrology Marine	2D 3D		Active	Support
DeltaBW	E-book: Calculator for evolution of long profile of a river ending in a 1D migrating delta, using a backwater formulation.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
DeltaClassification	Geometry classification of delta islands	Coastal	2D	Landscape-Scale	As is, no updates are provided	Mariela
DeltaNorm	E-book: Calculator for evolution of long profile of a river ending in a 1D migrating delta, using the normal flow approximation.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
DeltaRCM	River delta formation and evolution model with channel dynamics	Coastal	2D	Landscape-Scale		Man
DeltaRCM Vegetation	Delta-building model DeltaRCM expanded to include vegetation	Coastal	2D		As is, no updates are provided	Rebecca
DeltaSIM	Process-response model simulating the evolution and stratigraphy of fluvial dominated deltaic systems	Coastal			As is, no updates are provided	Bob
Demeter	Demeter - A Land Use and Land Cover Change Disaggregation Model	Terrestrial	2D	Continental Global	Active	Chris
DepDistTotLoadCalc	E-book: Illustration of calculation of depth-discharge relation, bed load transport, suspended load transport and total bed material load for a large, low-slope sand-bed river.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
DepressionFinderAndRouter	Find depressions on a topographic surface.	Hydrology Terrestrial	2D	Point-Based		Dan
DepthDependentDiffuser	Soil depth-dependent linear hillslope diffuser	Terrestrial	2D	Landscape-Scale	Active	Rachel
DepthDependentTaylorDiffuser	This component implements a depth-dependent Taylor series diffusion rule, combining concepts of Ganti et al. (2012) and Johnstone and Hilley (2014).	Terrestrial	2D	Patch-Scale Reach-Scale Watershed-Scale	Active	Rachel
DetachmentLtdErosion	Simulate detachment limited sediment transport.	Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	As is, no updates are provided	Jordan
Detrital Thermochron	Code for estimating long-term exhumation histories and spatial patterns of short-term erosion from the detrital thermochronometric data.	Terrestrial		Watershed-Scale		Boris
Diffusion	Diffusion of marine sediments due to waves, bioturbation	Marine			As is, no updates are provided	Eric
Dionisos	3D basin-scale stratigraphic model	Coastal	3D			Didier
Dorado	A Python package for simulating passive particle transport in shallow-water flows	Hydrology Terrestrial	2D	Watershed-Scale	Active	Jayaram
DrEICH algorithm	Algorithm for extracting channel networks from high resolution topographic data	Hydrology Terrestrial	2D	Landscape-Scale	As is, no updates are provided	Fiona
Drainage Density	Component for calculating drainage density in Landlab given a channel network	Terrestrial	2D	Continental Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Charles
DredgeSlotBW	E-book: calculator for aggradation and degradation of sediment mixtures in gravel-bed streams subject to cyclic hydrographs.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
DynEarthSol3D	DynEarthSol3D is a finite element solver that models the momentum balance and the heat transfer of elasto-visco-plastic material in the Lagrangian form.	Geodynamic	3D	Regional-Scale	Active	Eh
ECSimpleSnow	A simple snow model	Climate Hydrology Terrestrial	1D	Continental Global Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Kang
EF5	Ensemble Framework For Flash Flood Forecasting	Hydrology	2D	Regional-Scale		Zac
ELCIRC	Eulerian-Lagrangian CIRCulation	Coastal Marine	3D	Regional-Scale	As is, no updates are provided	Yinglong
ENTRAIN	Simulates critical shear stress of median grain sizes	Terrestrial			As is, no updates are provided	Rudy
ENTRAINH	Simulates critical shields theta for median grain sizes	Terrestrial			As is, no updates are provided	Rudy
ERA5 Data Component	A CSDMS data component used to download the ECMWF Reanalysis v5 (ERA5) datasets	Climate Cryosphere Hydrology Terrestrial	3D	Global	Only maintenance	Tian
ESCAPE	parallel global-scale landscape evolution model	Climate Hydrology Marine Terrestrial	3D	Continental Global Landscape-Scale Regional-Scale	Active	Tristan
Ecopath with Ecosim	Ecopath with Ecosim (EwE) is an ecological modeling software suite for personal computers	Ecosystems Marine	2D	Regional-Scale	Active	Villy
Elv-GST	Numerical 1D research code Elv applied to gravel-sand transitions	Terrestrial	1D	Landscape-Scale		Astrid
Eolian Dune Model	Read note in extended description. Werner's model for eolian dune formation and evolution	Terrestrial			As is, no updates are provided	Jon
Equilibrium Calculator	Equilibrium solver of Self-formed, Single-thread, Sand-bed Rivers	Hydrology Terrestrial	2D	Reach-Scale	As is, no updates are provided	Enrica
Erode	Fluvial landscape evolution model	Terrestrial				Scott
Erode-D8-Local	Fluvial Landscape Evolution Model	Terrestrial		Landscape-Scale		Scott
ErosionDeposition	Landlab component for fluvial erosion/deposition.	Terrestrial	2D	Continental Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Charles
EstuarineMorphologyEstimator	Empirical Assessment Tool for Bathymetry, Flow Velocity and Salinity in Estuaries Based on Tidal Amplitude and Remotely-Sensed Imagery	Coastal Hydrology Marine	1.5D 2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Jasper
ExponentialWeatherer	Exponential soil production function in the style of Ahnert (1976)	Terrestrial	2D	Landscape-Scale Watershed-Scale	Only maintenance	Rachel
FACET	Floodplain and Channel Evaluation Tool (FACET)	Hydrology Terrestrial	2D	Reach-Scale Watershed-Scale		Samuel
FLDTA	Simulates flow characteristics based on gradually varied flow equation	Hydrology Terrestrial	1D		As is, no updates are provided	Rudy
FTCS1D-NonLinear	Read note in extended description. Forward Time Centered Space (FTCS) method for 1D nonlinear diffusion equation	Terrestrial	1D		As is, no updates are provided	Jon
FTCS2D	Read note in extended description. Forward Time Centered Space (FTCS) method for 2D diffusion equation	Terrestrial			As is, no updates are provided	Jon
FTCS2D-TerraceDiffusion	Read note in extended description. Forward Time Centered Space (FTCS) method for 2D Terrace diffusion	Terrestrial	2D		As is, no updates are provided	Jon
FUNDY	a 3-D diagnostic model for continental shelf circulation studies	Coastal Marine	3D	Continental		Christopher
FUNWAVE	Fully Nonlinear Boussinesq Wave Model	Coastal	1D 2D	Watershed-Scale		Jim
FVCOM	The Unstructured Grid Finite Volume Coastal Ocean Model	Coastal Marine	3D	Continental Global Regional-Scale	Active	Changsheng
FVshock	Finite Volume two-dimensional shock-capturing model.	Coastal	2D	Reach-Scale		Alberto
FallVelocity	E-book: Particle fall velocity calculator	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
FastscapeEroder	Compute fluvial erosion using stream power theory (“fastscape” algorithm)	Terrestrial	2D	Landscape-Scale Regional-Scale	Only maintenance	Daniel
FillinPitsFlatsDEM	Read note in extended description. Filling in pits and flats in a DEM	Terrestrial	2D		As is, no updates are provided	Jon
FineSed3D	A turbulence-resolving numerical model for fine sediment transport in bottom boundary layer	Marine Terrestrial	3D	Grain-Scale		Zhen
FireGenerator	This component generates a random fire event or fire time series from the Weibull statistical distribution.	Climate Ecosystems Terrestrial	1D	Reach-Scale Watershed-Scale	As is, no updates are provided	Jordan
Flex1D	Read note in extended description. Fourier filtering in 1D while solving the flexure equation	Terrestrial	1D		As is, no updates are provided	Jon
Flex2D	Read note in extended description. Fourier filtering in 2D while solving the flexure equation	Terrestrial	2D		As is, no updates are provided	Jon
Flex2D-ADI	Read note in extended description. Solving the flexure equation applying Advection Diffusion Implicit (ADI) method	Terrestrial			As is, no updates are provided	Jon
Flexure	Deform the lithosphere with 1D or 2D flexure.	Geodynamic Terrestrial	1D 2D	Continental Landscape-Scale Regional-Scale	As is, no updates are provided	Eric
FlowAccumulator	Component to accumulate flow and calculate drainage area.	Hydrology Terrestrial	1.5D	Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale		Katy
FlowDirectorD8	Single-path (steepest direction) flow direction with diagonals on rasters.	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Katy
FlowDirectorDinf	Flow direction on a raster grid by the D infinity method.	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Katy
FlowDirectorMFD	Multiple-path flow direction with or without out diagonals.	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Katy
FlowDirectorSteepest	Single-path (steepest direction) flow direction without diagonals.	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Katy
FluidMud	Wave-phase resolving numerical model for fluid mud transport	Coastal				Tian-Jian
Fourier-Bessel-integration	Read note in extended description. Numerical integration of Fourier-Bessel terms	Terrestrial			As is, no updates are provided	Jon
FractionalNoises1D	Read note in extended description. 1D fractional-noise generation with Fourier-filtering method	Terrestrial	1D		As is, no updates are provided	Jon
FractionalNoises2D	Read note in extended description. 2D Gaussian fractional-noise generation with Fourier-filtering method	Terrestrial	2D		As is, no updates are provided	Jon
FractureGridGenerator	Create a 2D grid with randomly generated fractures.	Geodynamic Terrestrial	2D	Patch-Scale Reach-Scale Watershed-Scale	Only maintenance	Greg
Frost Model	Frost model predicts the likelihood of occurrence of permafrost in the land surface based on the monthly temperature distribution	Cryosphere Terrestrial	1.5D 1D	Regional-Scale	Active	Irina
FuzzyReef	Fuzzy logic model to model microbial reef development	Carbonates and Biogenics	3D	Regional-Scale		William
FwDET	Calculate floodwater depth based on an inundation polygon (e.g. from remote sensing) and a DEM	Coastal Hydrology Terrestrial	2D	Reach-Scale Watershed-Scale	Active	Sagy
GENESIS	GENEralized model for SImulating Shoreline change	Coastal				Mark
GEOMBEST	Geomorphic Model of Barrier, Estuarine, and Shoreface Translations	Coastal	2D	Landscape-Scale Watershed-Scale	Active	Laura
GEOMBEST++	Geomorphic model of barrier, estaurine, and shoreface translations plus dynamic marsh plus waves	Coastal	2D		Active	Rebecca
GEOMBEST++Seagrass	Geomorphic Model of Barrier, Estuarine, and Shoreface Translations + Marsh + Seagrass	Coastal	2D	Landscape-Scale	Active	Ian
GEOMBEST-Plus	2D cross-shore geomorphological model of barrier island and marsh response to sea level rise.	Coastal	2D		Active	David
GEOtop	Distributed hydrological model, water and energy budgets	Hydrology Terrestrial	2D	Landscape-Scale		Riccardo
GFlex	Multiple solution methods for isostasy and lithospheric flexure	Geodynamic	1D 2D	Continental Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Andy
GIPL	GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model.	Cryosphere Terrestrial	1D	Continental Global Landscape-Scale Regional-Scale	As is, no updates are provided	Elchin
GISKnickFinder	This python code can be used to find knickpoints and extract information about streams, it utilizes built-in functions of ArcGIS.	Hydrology Terrestrial	2D	Watershed-Scale	As is, no updates are provided	Francis
GISS AOM	GISS Atmosphere-Ocean Model	Climate Marine	3D	Global		David
GISS GCM ModelE	GISS GCM ModelE	Climate Coastal Hydrology Marine	3D	Global	Active	Gavin
GLUDM	Global future agricultural land use dynamics model	Terrestrial	2D	Global	As is, no updates are provided	Sagy
GNE	Set of biogeochemical sub-models that predicts river export	Coastal Terrestrial				Sybil
GOLEM	Landscape evolution model	Terrestrial	2D		As is, no updates are provided	Greg
GPM	Sedimentary process modeling software	Coastal Terrestrial				Daniel
GRLP	Evolves gravel-bed river long profiles	Terrestrial	1.5D 1D	Continental Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale		Andrew
GSDCalculator	E-book: Calculator for statistical characteristics of grain size distributions.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
GSFLOW	Ground-water and Surface-water FLOW model	Hydrology Terrestrial	3D	Watershed-Scale		Steve
GSFLOW-GRASS	Quickly generates input files for and runs GSFLOW, and visualizes the output	Hydrology Terrestrial	3D	Landscape-Scale Regional-Scale Watershed-Scale		Andrew
GSSHA	Coupled distributed engineering hydrology, sediment, contaminant fate/transport	Hydrology Terrestrial	1.5D 2D	Watershed-Scale		Fred
GST-extendedmodel	Extended GST model: combination of an analytical GST migration model combined with closure relations based on the assumption of quasi-equilibrium conditions	Terrestrial	1D	Landscape-Scale		Astrid
Gc2d	Glacier / ice sheet evolution model	Cryosphere Terrestrial	2D			Mark
GeoClaw	Depth-averaged fluid dynamics for modeling geophysical flows and wave propagation	Coastal Terrestrial	1D 2D	Continental Global Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Randall
GeoTiff Data Component	A CSDMS data component for accessing data and metadata from a GeoTIFF file, through either a local filepath or a remote URL..	Carbonates and Biogenics Climate Coastal Cryosphere Ecosystems Geodynamic Human dimensions Hydrology Marine Planetary landforms Terrestrial	2D 3D	Continental Global Grain-Scale Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Mark
Glimmer-CISM	Dynamic thermo-mechanical ice sheet model	Cryosphere Hydrology Terrestrial	3D	Continental Regional-Scale		Magnus
Gospl	Global Scalable Paleo Landscape Evolution	Climate Geodynamic Terrestrial	2D	Global	Active	Tristan
GrainHill	Cellular automaton model of hillslope evolution	Terrestrial	2D	Reach-Scale		Gregory
GravelSandTransition	E-book: Calculator for evolution of long profile of river with a migrating gravel-sand transition and subject to subsidence or base level rise.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
GreenAmptInfiltrationModel	The Green-Ampt method of infiltration estimation.	Hydrology	1D	Point-Based		Peishi
GridMET Data Component	A CSDMS data component for fetching and caching gridMET meteorological data.	Climate Coastal Human dimensions Hydrology	2D	Continental Landscape-Scale Regional-Scale Watershed-Scale	Active	Rich
GroundwaterDupuitPercolator	The GroundwaterDupuitPercolator solves the Boussinesq equation for flow in an unconfined aquifer over an impermeable aquifer base and calculates groundwater return flow to the surface.	Hydrology		Landscape-Scale Reach-Scale Watershed-Scale		David
GullyErosionProfiler1D	This model is designed to simulate longitudinal profiles with headward advancing headcuts.	Hydrology Terrestrial	1D	Reach-Scale	As is, no updates are provided	Francis
Gvg3Dp	3D Numerical Simulation of Turbidity Currents	Marine	3D			Mohamad Mehdi
HAMSOM	3D free surface and baroclinic hydrodynamic model	Coastal Marine	3D	Continental Regional-Scale		Dr. Bernhard
HBV	HBV model is a rainfall-runoff model	Hydrology	1D	Watershed-Scale	As is, no updates are provided	John
HEBEM	Hydrologically Enhanced Basin Evolution Model	Terrestrial	2D			Jeffrey
HIM	Hallberg Isopycnal Model	Marine	1D 2D	Regional-Scale		Robert
HSPF	a comprehensive package for simulation of watershed hydrology and water quality for both conventional and toxic organic pollutants	Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale		Bob
HYPE	Hydrological model for simulation of water and water quality over time	Hydrology	2D	Continental Global Regional-Scale	Active	--
HackCalculator	Calculate Hack parameters.	Hydrology Terrestrial	1D	Watershed-Scale	Only maintenance	Katy
HexWatershed	A mesh independent flow direction model for hydrologic models	Coastal Cryosphere Ecosystems Hydrology Terrestrial	2D 3D	Continental Global Landscape-Scale Regional-Scale Watershed-Scale	Active	Chang
Hilltop and hillslope morphology extraction	Tools for extracting hilltops and analysing hillslope morphology	Terrestrial	2D	Reach-Scale Watershed-Scale		Martin
Hilltop flow routing	Algorithm for directly measuring hillslope length from high resolution topographic data	Terrestrial	2D	Landscape-Scale	Active	Stuart
Hogback	Evolution of a hogback	Terrestrial	1D	Reach-Scale	As is, no updates are provided	Rachel
HyLands	The HyLands model simulates the impact of bedrock landslides on topographic evolution and sediment dynamics.	Terrestrial	2D	Landscape-Scale	Active	Benjamin
HydroCNHS	HydroCNHS, a Python Package of Hydrological Model for Coupled Natural–Human Systems	Hydrology	2D	Landscape-Scale	Active	Chung-Yi
HydroPy	A global hydrological model useful for assessment of the land surface water balance.	Hydrology	2D 3D	Global	As is, no updates are provided	Tobias
HydroRaVENS	Linear-reservoir hydrological model with snowpack and evapotranspiration	Hydrology Terrestrial		Watershed-Scale	Active	Andrew
HydroTrend	Climate driven hydrological transport model	Hydrology Terrestrial	1.5D 1D	Continental Landscape-Scale Regional-Scale	Active	Albert
Hydromad	Hydrological Model Assessment and Development	Hydrology	1.5D	Watershed-Scale	Active	Joseph
Hyper	2D Turbidity Current model	Coastal Marine	2D	Landscape-Scale		Jasim
IDA	An implementation of the Implicit Drainage Area method (regular and hybrid versions) for calculating drainage area from flow directions using parallel iterative solvers.	Hydrology	2D	Continental Landscape-Scale Regional-Scale Watershed-Scale	As is, no updates are provided	Alan
ILAMB	The International Land Model Benchmarking (ILAMB) toolkit	Climate Cryosphere Ecosystems Hydrology Marine Terrestrial	1D 2D 3D	Continental Global Regional-Scale	Active	Nathan
ISSM	Ice Sheet System Model (ISSM)	Cryosphere Terrestrial	2D	Continental Global Regional-Scale	Active	Eric
Ice-sheet-Glacier-reconstruction	Read note in extended description. Sandpile method for ice-sheet and glacier reconstruction	Cryosphere Terrestrial			As is, no updates are provided	Jon
IceFlow	2D semi-implicit shallow ice approximation glacier model	Cryosphere Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale		Andy
Iceages	Read note in extended description. Stochastic-resonance subroutine of Pleistocene ice ages	Terrestrial			As is, no updates are provided	Jon
Icepack	Icepack is a Python package for simulating the flow of glaciers and ice sheets, as well as for solving glaciological data assimilation problems.	Cryosphere Marine	3D	Landscape-Scale	Active	Daniel
Inflow	Steady-state hyperpycnal flow model	Coastal Marine			As is, no updates are provided	Eric
Instructed Glacier Model	The Instructed Glacier Model (IGM) simulates the ice dynamics, surface mass balance, and its coupling through mass conservation to predict the evolution of glaciers, icefields, or ice sheets	Cryosphere	2D	Watershed-Scale	Active	Guillaume
KWAVE	A model representing infiltration, interception, and runoff using the kinematic wave approximation	Hydrology Terrestrial	2D	Landscape-Scale Patch-Scale Reach-Scale Watershed-Scale	As is, no updates are provided	Luke
Kirwan marsh model	Ecomorphoydamic model of marsh elevation and channel evolution	Coastal				Matthew
KnickZone-Picker	Matlab-based scripts to extract topometrics for catchments and identify river knickpoints.	Hydrology Terrestrial	1.5D 2D	Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale		Bodo
Kudryavtsev Model	Permafrost Active Layer Thickness Model based on Kudryavtsev's parametrization	Cryosphere Hydrology Terrestrial	1.5D 1D 2D	Regional-Scale	Active	Irina
LEMming	LEMming landscape evolution model: a 2-D, regular-grid, rules-based, hybrid finite-difference / cellular automaton model that is designed to explore the effect of multiple rock types on landscape evolution.	Terrestrial	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale		Dylan
LEMming2	2D model that simulates the retreat of hard-capped cliffs	Terrestrial	2D	Landscape-Scale	Active	Dylan
LISFLOOD	LISFLOOD - a distributed hydrological rainfall-runoff model	Hydrology	1D 2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Ad
LITHFLEX1	Lithospheric flexure solution	Geodynamic	1D		As is, no updates are provided	Kevin
LITHFLEX2	Lithospheric flexure solution for a broken plate	Geodynamic	1D		As is, no updates are provided	Kevin
LOADEST	Software for estimating constituent loads in streams and rivers	Coastal Hydrology Terrestrial			Only maintenance	Rob
LOGDIST	Logrithmic velocity distribution solution	Terrestrial			As is, no updates are provided	Rudy
LONGPRO	Dynamic evolution of longitudinal profiles	Terrestrial	1D		As is, no updates are provided	Rudy
LTRANS	The Larval TRANSport Lagrangian model (LTRANS) is an off-line particle-tracking model that runs with the stored predictions of a 3D hydrodynamic model, specifically the Regional Ocean Modeling System (ROMS).	Coastal Marine	3D	Landscape-Scale Reach-Scale Watershed-Scale	Only maintenance	Elizabeth
LaMEM	LaMEM - Lithosphere and Mantle Evolution Model	Geodynamic	3D	Continental Regional-Scale		Anton
Lake-Permafrost with Subsidence	1-D lake-permafrost thermal model with subsidence.	Terrestrial	1D			Nora
LakeMapperBarnes	Temporarily fills depressions and reroutes flow across them	Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Daniel
Landlab	Python software framework for writing, assembling, and running 2D numerical models	Coastal Hydrology Marine Terrestrial	2D	Landscape-Scale Patch-Scale Reach-Scale Watershed-Scale	Active	Greg
Landslides	Landlab component that simulates landslide probability of failure as well as mean relative wetness and probability of saturation.	Human dimensions Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Ronda
LateralEroder	Laterally erode neighbor node through fluvial erosion.	Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Abigail
LateralVerticalIncision	Geometric model to explore autogenic increase of vertical incision rate in entrenching alluvial rivers.	Terrestrial	1.5D	Landscape-Scale Reach-Scale Watershed-Scale	As is, no updates are provided	Luca
LavaFlow2D	Read note in extended description. 2D radially symmetric lava flow model	Terrestrial	2D		As is, no updates are provided	Jon
LinearDiffuser	Landlab component that models soil creep as a linear diffusion process	Terrestrial	2D	Patch-Scale Reach-Scale Watershed-Scale	Active	Greg
Lithology	Create a Lithology object with different properties	Terrestrial	3D	Continental Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Katy
LossyFlowAccumulator	Component to calculate drainage area and accumulate flow, while permitting dynamic loss or gain of flow downstream.	Hydrology Terrestrial	1.5D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale		Dan
LuSS	A set of MATLAB functions to model how luminescence evolves in different geomorphic scenarios.	Terrestrial	1D	Grain-Scale	As is, no updates are provided	Nathan
LumSoilMixer	This is a model to simulate the non-dimensionalized luminescence in a mixing soil.	Terrestrial	1D	Grain-Scale	As is, no updates are provided	Harrison
MARM5D	Landscape-scale soil evolution model	Terrestrial	3D	Landscape-Scale	As is, no updates are provided	Sagy
MARSSIM	Landform evolution model	Coastal Hydrology Terrestrial	3D	Continental Landscape-Scale Regional-Scale Watershed-Scale	Active	Alan
MARSSIM V4	MARSSIM terrestrial and planetary Landform Evolution Model	Hydrology Planetary landforms Terrestrial	3D	Continental Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Alan
MCPM	A stand alone model for the morphological evolution of an idealized transect across a marsh channel-and-platform.	Coastal	1D	Reach-Scale Watershed-Scale	Only maintenance	Giulio
MFDrouting	Read note in extended description. Multiple Flow Direction (MFD) flow routing method	Hydrology Terrestrial		Watershed-Scale	As is, no updates are provided	Jon
MFDrouting-Successive	Read note in extended description. Successive flow routing with Multiple Flow Direction (MFD) method	Hydrology Terrestrial			As is, no updates are provided	Jon
MICOM	Miami Isopycnic Coordinate Ocean Model	Marine	3D	Global Watershed-Scale		Rainer
MIDAS	Coupled flow- heterogeneous sediment routing model	Hydrology Terrestrial			As is, no updates are provided	Rudy
MITgcm	The MITgcm (MIT General Circulation Model) is a numerical model designed for study of the atmosphere, ocean, and climate.	Climate	3D	Global		Nicole
MODFLOW	MODFLOW is a three-dimensional finite-difference ground-water model	Hydrology Terrestrial	3D	Watershed-Scale	Active	Paul
MODFLOW 6	MODFLOW 6 is an object-oriented program and framework developed to provide a platform for supporting multiple models and multiple types of models within the same simulation	Coastal Hydrology Terrestrial	3D	Continental Global Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Joseph
MOM6	MOM6 is the latest generation of the Modular Ocean Model which is a numerical model code for simulating the ocean general circulation.	Marine	3D	Continental Global		MOM6
MRSAA	Macro-roughness model framework for treating erosion, bed cover, and sediment transport in bedrock river channels.	Geodynamic	1D	Reach-Scale		Li
Manningseq-bouldersforpaleohydrology	Matlab® code for paleo-hydrological flood flow reconstruction in a fluvial channel	Hydrology Terrestrial	1.5D	Reach-Scale Watershed-Scale	As is, no updates are provided	Marius
Marsh column model	Simulates sediment, roots and carbon accumulating in a 1D marsh profile.	Coastal	1D	Point-Based		Simon
MarshMorpho2D	2D long-term marsh evolution model based on tidal dispersion	Coastal	2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Giulio
MarshPondModel	2D marsh evolution model focused on pond dynamics	Coastal	2D	Landscape-Scale	As is, no updates are provided	Giulio
Meander Centerline Migration Model	Simulation of the long-term migration of meandering rivers flowing above heterogeneous floodplains	Hydrology Terrestrial	2D	Continental Landscape-Scale Regional-Scale	Active	Manuel
Meanderpy	A simple kinematic model of meandering	Terrestrial	3D	Landscape-Scale Reach-Scale	Active	Zoltan
Mixed bedrock-alluvial morphodynamic	Alluvial morphodynamics of bedrock reaches	Hydrology	1D	Reach-Scale	As is, no updates are provided	Sadegh
Mocsy	Routines to model the ocean carbonate system	Marine	1D	Regional-Scale		James
ModelParameterDictionary	Tool written in Python for reading model input parameters from a simple formatted text file.	Climate Coastal Hydrology Marine Terrestrial			As is, no updates are provided	Greg
Morphodynamic gravel bed	Morphodynamic evolution of gravel bed rivers	Terrestrial	1D	Reach-Scale	As is, no updates are provided	Sadegh
Mosartwmpy	Model for Scale Adaptive River Transport with Water Management in Python	Hydrology	2D	Continental Global Regional-Scale	Active	Travis
Mrip	Mrip is a self-organization type model for the formation and dynamics of megaripples in the nearshore.	Coastal Hydrology	2D	Patch-Scale Reach-Scale		Edith
NEXRAD-extract	Extract data from NEXRAD Doppler Radar NetCDFs	Climate Hydrology	2D 3D	Continental Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale		Andy
NUBBLE	A turbulent boundary layer model for the linearized shallow water equations	Coastal Marine	1D	Regional-Scale		Christopher
NWIS Data Component	A CSDMS data component used to download the National Water Information System (Nwis) time series datasets.	Climate Ecosystems Hydrology	1D	Continental Point-Based	Active	Tian
NWM Data Component	A CSDMS data component used to download the National Water Model datasets.	Climate Hydrology	2D	Reach-Scale	Only maintenance	Tian
NearCoM	Nearshore Community Model	Coastal				James
Nitrate Network Model	Nitrate and organic carbon dynamics on a wetland-river network	Hydrology Terrestrial	1D	Continental Landscape-Scale Regional-Scale Watershed-Scale	As is, no updates are provided	Jonathan
Non Local Means Filtering	Performs non-local means filtering of a DEM following Buades et al. (2005)	Terrestrial	2D	Watershed-Scale		Martin
NormalFault	NormalFault implements relative rock motion due to a normal fault.	Geodynamic Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Katy
OGGM	OGGM is a modular open source model for glacier dynamics	Cryosphere	3D	Continental Global Landscape-Scale Regional-Scale	Active	Fabien
OTEQ	One-Dimensional Transport with Equilibrium Chemistry (OTEQ): A Reactive Transport Model for Streams and Rivers	Hydrology Terrestrial	1D	Reach-Scale Watershed-Scale	Only maintenance	Rob
OTIS	One-Dimensional Transport with Inflow and Storage (OTIS): A Solute Transport Model for Streams and Rivers	Hydrology Terrestrial	1D	Reach-Scale Watershed-Scale	Only maintenance	Rob
OTTAR	Ode To Transient (Ancho de los) Rivers: Transient evolution of river-channel width in response to river discharge and bank and sediment properties.	Hydrology Terrestrial	1D	Reach-Scale	Active	Andrew
OTTER	Evolution of a river profile with dynamic width	Terrestrial	1.5D 1D	Reach-Scale Watershed-Scale		Brian
OceanWaves	Calculate wave-generated bottom orbital velocities from surface wave parameters	Coastal Marine		Point-Based		Patricia
Oceananigans.jl	Oceananigans.jl is a fast and friendly ocean-flavored Julia software for simulating incompressible fluid dynamics in Cartesian and spherical shell domains on CPUs and GPUs.	Marine	3D	Continental Global Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Ali
OlaFlow	Wave generation and active absorption interaction with porous structures framework	Coastal Hydrology Marine	1.5D 2D 3D	Grain-Scale Patch-Scale Reach-Scale Watershed-Scale	Active	Pablo
OpenFOAM	Open Field Operation and Manipulation is a toolbox for the development of customized numerical solvers.	Coastal Hydrology Marine Terrestrial	1.5D 1D 2D 3D	Landscape-Scale Reach-Scale Watershed-Scale	Active	Henry
OptimalCycleID	A numerical method to analyse a vertical succession of strata and identify the most cyclical arrangement of constituent facies	Coastal Marine Terrestrial	1D	Global	Only maintenance	Peter
OrderID	A method to test for order in a vertical succession of strata	Coastal Marine Terrestrial	1D		Active	Peter
OverlandFlow	Component simulating overland flow using a 2-D numerical approximation of the shallow-water equations following the de Almeida et al., 2012 algorithm for storage-cell inundation modeling.	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale	Only maintenance	Jordan
OverlandFlowBates	This component simulates overland flow using the 2-D numerical model of shallow-water flow over topography using the Bates et al. (2010) algorithm for storage-cell inundation modeling.	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale	Only maintenance	Jordan
PHREEQC	PHREEQC version 3 is a computer program written in the C and C++ programming languages that is designed to perform a wide variety of aqueous geochemical calculations	Hydrology Terrestrial	1D	Watershed-Scale	Active	David
PIHM	PIHM is a multiprocess, multi-scale hydrologic model.	Hydrology				Christopher
PIHMgis	Tightly coupled GIS interface for the Penn State Integrated Hydrologic Model	Hydrology	2D	Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	As is, no updates are provided	Christopher
PISM	Parallel Ice Sheet Model, PISM	Cryosphere Terrestrial	3D	Regional-Scale	Active	Glacier
PRMS	Precipitation-Runoff Modeling System	Hydrology Terrestrial	3D	Watershed-Scale	Active	George
PSTSWM	Parallel Spectral Transform Shallow Water Model	Climate	3D	Global		Patrick
ParFlow	Parallel, high-performance, integrated watershed model	Hydrology Terrestrial			Active	Reed
Permafrost Benchmark System	The PBS is a web-based tool for conducting benchmarking studies of permafrost models.	Climate Coastal Cryosphere Ecosystems Hydrology Terrestrial	2D	Continental Global Regional-Scale		Mark
PerronNLDiffuse	Nonlinear diffusion, following Perron (2011).	Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale	Only maintenance	Daniel
Physprop	Calculates the acoustic values based on physical properties	Coastal Marine	1D	Regional-Scale		Lincoln
Pllcart3d	3D numerical simulation of confined miscible flows	Hydrology Terrestrial	3D			Rafael
Plume	Hypopycnal sediment plume	Coastal Marine	2D		As is, no updates are provided	Eric
Point-Tidal-flat	Point Model for Tidal Flat Evolution model	Coastal			As is, no updates are provided	Sergio
PotentialEvapotranspiration	Calculates potential evapotranspiration	Climate Ecosystems Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Sai
PotentialityFlowRouter	Multidirectional flow routing using a novel method.	Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Daniel
PrecipitationDistribution	Generate random sequence of precipitation events	Climate Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale	Only maintenance	Jordan
Princeton Ocean Model (POM)	POM: Sigma coordinate coastal & basin circulation model	Marine	3D		Only maintenance	Tal
PsHIC	Pixel-scale Hypsometric Integral Calculator	Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale	As is, no updates are provided	Sagy
PyDeCe	Python model for Dense Current forming eruptions (PyDeCe) is a tool for modeling the dense endmember of pyroclastic density currents generated either by impulsive column collapse or sustained fountaining eruptions.	Terrestrial	2D		Only maintenance	Indujaa
PyDeltaRCM	Reduced complexity river delta formation and evolution model with channel dynamics	Coastal Hydrology	2D	Landscape-Scale		Mariela
PyRiverBed	A Python framework to generate synthetic riverbed topography of constant-width meandering rivers	Hydrology Terrestrial	1.5D	Landscape-Scale Patch-Scale Reach-Scale Regional-Scale Watershed-Scale	Active	Zhi
QDSSM	Quantitative Dynamic Sequence Stratigraphic Model	Coastal	3D	Landscape-Scale		George
QTCM	Quasi-equilibrium Tropical Circulation Model	Climate	2D	Global		David
QUAL2K	A Modeling Framework for Simulating River and Stream Water Quality	Terrestrial	1D	Watershed-Scale		Steve
QUODDY	A state-of-the-art finite-element computer simulation program for coastal ocean circulation modeling	Coastal	3D	Regional-Scale		Kristina
Quad	Geometric model to study the response of fluvial-deltas to base-level changes.	Coastal	1D	Landscape-Scale Regional-Scale		Jorge
RAFEM	River Avulsion and Floodplain Evolution Module	Terrestrial	2D	Continental Regional-Scale	Active	Katherine
RASCAL	Landscape evolution resulting from feedback between flow, vegetation, and sediment	Coastal Hydrology Terrestrial	2D	Landscape-Scale		Laurel
RCPWAVE	Regional Coastal Processes Wave Model	Coastal	2D			Mark
REF-DIF	Phase-resolving parabolic refraction-diffraction model for ocean surface wave propagation.	Coastal	1D	Continental Regional-Scale		James
RHESSys	Regional Hydro-Ecologic Simulation System	Hydrology Terrestrial	2D	Watershed-Scale	Active	christina
ROMS	Regional Ocean Modeling System	Marine			Active	Hernan G.
ROMS Data Component	A CSDMS data component used to access the Regional Ocean Modeling System (ROMS) datasets	Coastal Marine	3D	Regional-Scale	Only maintenance	Tian
ROMSBuilder	ROMSBuilder is a CCA-CSDMS Modeling Tool (CMT) compliant component that creates another CMT compliant ROMS component. The new ROMS component is build as per the C-preprocessing options that defines a particular ROMS application.	Marine				Jisamma
Radiation	Compute 1D and 2D total incident shortwave radiation.	Climate Terrestrial	1D 2D	Continental Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Sai
RecircFeed	E-book: calculator for approach to equilibrium in recirculating and feed flumes	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
Rescal-snow	A model of dunes and snow-waves	Cryosphere Hydrology Terrestrial	2D 3D	Grain-Scale Patch-Scale	Active	Kelly
Reservoir	Reservoir: Tools for Analysis, Design, and Operation of Water Supply Storages	Hydrology	1D	Point-Based	Only maintenance	Sean
RivMAP	Matlab toolbox for mapping and measuring river planform changes	Terrestrial	2D	Continental	As is, no updates are provided	Jon
River Erosion Model	An intermediate complexity model for simulating stream channel evolution (years to decades) at the watershed scale.	Hydrology Terrestrial	1D	Watershed-Scale	Only maintenance	Roderick
River Network Bed-Material Sediment	Bed-material sediment transport and storage dynamics on river networks.	Hydrology Terrestrial	1D	Continental Landscape-Scale Regional-Scale Watershed-Scale	As is, no updates are provided	Jonathan
River Temperature Model	River Temperature Model based on heat balance approach	Hydrology Terrestrial	1.5D 1D	Reach-Scale	Active	Irina
RiverMUSE	Simulates freshwater mussel populations' response to changes in suspended sediment	Ecosystems Hydrology Terrestrial	1D	Reach-Scale	As is, no updates are provided	Jon
RiverSynth	Excel file for creating XYZ coordinates of artificial river valley topography	Hydrology Terrestrial	2D	Reach-Scale Watershed-Scale		Rocko
RiverWFRisingBaseLevelNormal	E-book: Calculator for disequilibrium aggradation of a sand-bed river in response to rising base level.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
RouseVanoniEquilibrium	E-book: Program for calculating the Rouse-Vanoni profile of suspended sediment.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
SBEACH	Numerical Model for Simulating Storm-Induce Beach Change	Coastal				Mark
SBM	Sorted Bedform Model	Coastal Marine		Reach-Scale	As is, no updates are provided	A. Brad
SEA	Southamption--East Anglia	Marine	3D	Global		David
SEDPAK	Models the sedimentary fill of basins	Carbonates and Biogenics Marine				Christopher
SELFE	Semi-implicit Eulerian–Lagrangian Finite Element	Coastal Marine	3D	Continental	As is, no updates are provided	Yinglong
SEOM	Spectral Element Ocean Model	Coastal Marine	2D 3D	Continental Global		Dale
SETTLE	Partical settling velocity solution	Terrestrial			As is, no updates are provided	Rudy
SFINCS	SFINCS, a reduced-physics solver to compute compound flooding in coastal systems due to fluvial, pluvial, tidal, wind- and wave-driven processes	Coastal	2D	Landscape-Scale	Active	Tim
SIBERIA	SIBERIA simulates the evolution of landscapes under the action of runoff and erosion over long times scales.	Terrestrial	2D	Regional-Scale	As is, no updates are provided	Garry
SICOPOLIS	Ice sheet model	Cryosphere Terrestrial		Regional-Scale	Active	Ralf
SIGNUM	SIGNUM (Simple Integrated Geomorphological Numerical Model) is a MAtlab TIN-based landscape evolution model	Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	As is, no updates are provided	Domenico
SIMSAFADIM	Finite element model for fluid flow, clastic, carbonate and evaporate sedimentation	Coastal Marine				Klaus
SINUOUS	SINUOUS - Meander Evolution Model	Hydrology Planetary landforms Terrestrial	2D	Landscape-Scale Reach-Scale	Active	Alan
SISV	Spectral, Implicit, Streamfunction-Vorticity solver		2D	Reach-Scale		Peter
SLAMM 6.7	The Sea Level Affecting Marshes Model (SLAMM)	Climate Coastal Geodynamic Hydrology Marine Terrestrial	1.5D 2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Jonathan
SLEPIAN Alpha	Computation of spherical harmonics, Slepian functions, and transforms	Marine Terrestrial	3D	Continental Global Regional-Scale	Active	Frederik
SLEPIAN Bravo	Linear inverse problems using spherical harmonics and spherical Slepian functions	Marine Terrestrial	3D	Continental Global Regional-Scale	Active	Frederik
SLEPIAN Charlie	Spectral estimation problems using spherical harmonics and spherical Slepian functions	Marine Terrestrial	3D	Continental Global Regional-Scale	Active	Frederik
SLEPIAN Delta	Analysis of time-variable gravity from the GRACE satellite mission using spherical harmonics and spherical Slepian functions	Marine Terrestrial	3D	Continental Global Regional-Scale	Active	Christopher
SLEPIAN Echo	Computation of vectorial spherical harmonics, vectorial Slepian functions, and transforms		3D	Continental Global Regional-Scale		Alain
SNAC	An updated Lagrangian explicit finite difference code for modeling a finitely deforming elasto-visco-plastic solid in 3D.	Geodynamic Terrestrial	3D	Continental Landscape-Scale Regional-Scale	Active	Eunseo
SNOWPACK					Active
SPACE	Landlab component for 2-D calculation of fluvial sediment transport and bedrock erosion	Terrestrial	2D	Continental Landscape-Scale Reach-Scale Regional-Scale Watershed-Scale	Only maintenance	Charles
SPARROW	The SPARROW Surface Water-Quality Model	Hydrology Terrestrial	2D	Continental Landscape-Scale Regional-Scale Watershed-Scale	Active	Richard
SPHYSICS	Smoothed Particle Hydrodynamics code	Coastal	2D 3D	Reach-Scale		Robert
SRH-1D	One-dimensional cross section based hydraulic and mobile-bed sediment transport model	Terrestrial	1D	Landscape-Scale Regional-Scale Watershed-Scale		Blair
STORM	Windfield simulator for a cyclone	Coastal			As is, no updates are provided	Rudy
STSWM	NCAR Spectral Transform Shallow Water Model	Climate Coastal Marine	3D	Regional-Scale		James
STVENANT	1D gradually varied flow routine	Coastal Hydrology	1D		As is, no updates are provided	Rudy
STWAVE	Steady-State Spectral Wave Model	Coastal	3D	Landscape-Scale Watershed-Scale		Jane
SUSP	Suspended load transport subroutine	Terrestrial			As is, no updates are provided	Rudy
SVELA	Shear velocity solution associated with grain roughness	Terrestrial			As is, no updates are provided	Rudy
SWAN	SWAN is a third-generation wave model	Coastal	3D	Continental Landscape-Scale Regional-Scale	Active	Team
SWAT	SWAT is a river basin scale model developed to quantify the impact of land management practices in large, complex watersheds.	Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale	Active	Jeff
SWEHR	A coupled model for infiltration, fluid flow, and sediment transport.	Hydrology Terrestrial	2D	Patch-Scale Reach-Scale Watershed-Scale		Luke
SWMM	Storm Water Management Model	Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale		Lewis
Sakura	3 Equation hyperpycnal flow model	Coastal Marine			As is, no updates are provided	Yusuke
SedBerg	An iceberg drift and melt model, developed to simulate sedimentation in high-latitude glaciated fjords.	Coastal Cryosphere	2D	Regional-Scale		Ruth
SedCas	A probabilistic sediment cascade model for sediment production, storage and transfer	Hydrology	1D	Landscape-Scale Watershed-Scale	Active	Jacob
SedDepEroder	Compute fluvial erosion using using “tools and cover” theory	Terrestrial	2D	Landscape-Scale Regional-Scale	Only maintenance	Daniel
SedFoam-2.0	A multi-dimensional Eulerian two-phase model for sediment transport (version 2.0)	Coastal Hydrology	3D	Patch-Scale Reach-Scale		Julien
SedPlume	SedPlume simulates glacial meltwater plume dynamics and sedimentation.	Coastal	2D	Landscape-Scale		Ruth
Sedflux	Basin filling stratigraphic model	Coastal Marine	2D 3D		Only maintenance	Eric
Sedtrans05	Sediment transport model for continental shelf and estuaries	Marine			As is, no updates are provided	Urs
Shoreline	Coastal evolution model	Coastal	1.5D			Scott
SiStER	An easy-to-use MATLAB code to simulate long-term lithosphere and mantle deformation.	Geodynamic	2D	Continental		Jean-Arthur
SimClast	basin-scale 3D stratigraphic model	Coastal Marine Terrestrial	3D			Rory
SinkFiller	Fill sinks in a landscape to the brim, following the Barnes et al. (2014) algorithms.	Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale	Only maintenance	Daniel
SoilGrids Data Component	A CSDMS data component used to download the soil property datasets from the SoilGrids system.	Ecosystems Hydrology Terrestrial	2D	Global	Only maintenance	Tian
SoilInfiltrationGreenAmpt	Landlab component that calculates soil infiltration based on the Green-Ampt solution.	Hydrology Terrestrial	2D	Landscape-Scale Patch-Scale Reach-Scale Watershed-Scale	As is, no updates are provided	Francis
SoilMoisture	Compute the decay of soil moisture saturation at storm-interstorm time period	Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Sai
SpatialPrecipitationDistribution	Generate random sequence of spatially-resolved precipitation events	Climate Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale	Only maintenance	Daniel
Spbgc	2D Numerical Simulation of Turbidity Currents	Coastal	2D			Zachary
SpeciesEvolver	Evolve life in a landscape.	Ecosystems Terrestrial	2D	Regional-Scale	Only maintenance	Nathan
Spirals1D	Read note in extended description. 1D model of spiral troughs on Mars	Terrestrial	1D		As is, no updates are provided	Jon
SteadyStateAg	E-book: calculator for approach to equilibrium in recirculating and feed flumes	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
SteepnessFinder	Calculate steepness and concavity indices from gridded topography	Terrestrial	1.5D 2D	Landscape-Scale Regional-Scale	Only maintenance	Daniel
StreamPower	Read note in extended description. Modeling the development of topographic steady state in the stream-power model	Terrestrial			As is, no updates are provided	Jon
StreamPowerSmoothThresholdEroder	Compute fluvial erosion using stream power theory with a numerically smoothed threshold	Terrestrial	2D	Landscape-Scale Regional-Scale	Only maintenance	Greg
StreamProfilerApp	Global stream profiler web-app	Terrestrial	1D	Global	Active	Gregory
Subside	Flexure model	Geodynamic	1D 2D		As is, no updates are provided	Eric
SubsidingFan	E-book: calculator for evolution of profiles of fans in subsiding basins	Hydrology Terrestrial	1D	Watershed-Scale		Gary
Sun fan-delta model	Fan-delta and alluvial fan landscape evolution model	Coastal Marine Planetary landforms Terrestrial	2D	Landscape-Scale	As is, no updates are provided	Ajay
SurfaceRoughness	Quantifies surface roughness with high-resolution topographic data by analyzing the local variability of surface normal vectors.	Terrestrial	2D			David
SuspSedDensityStrat	E-book: Module for calculating the effect of density stratification on the vertical profiles of velocity and suspended sediment.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
Symphonie	3D primitive equation ocean model	Marine			Active	Patrick
TAo	tAo is a software designed to model the interplay between lithosphere flexure and surface transport (erosion/sedimentation), particularly during the formation of orogens and foreland sedimentary basins (see details).	Geodynamic Terrestrial	2D	Continental Regional-Scale	Only maintenance	Daniel
TISC	TISC integrates quantitative models of lithospheric flexure, fault deformation, and surface mass transport (erosion/transport/sedimentation) along drainage networks.	Climate Geodynamic Hydrology Terrestrial	2D 3D	Continental Regional-Scale	Only maintenance	Daniel
TOPMODEL	Physically based, distributed watershed model that simulates hydrologic fluxes of water through a watershed	Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale	Active	Keith
TOPOG	TOPOG is a terrain analysis-based hydrologic modelling package	Hydrology Terrestrial	2D 3D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Richard
TUGS	Fluvial gravel and sand transport model	Terrestrial	1D			Yantao
TURB	Gausian distribution calculator of instantaneous shear stresses on the fluvial bed	Terrestrial			As is, no updates are provided	Rudy
TURBINS	An immersed boundary, Navier–Stokes code for the simulation of gravity and turbidity currents interacting with complex topographies.	Marine	2D 3D	Patch-Scale		Mohamad
TauDEM	A suite of Digital Elevation Model (DEM) tools for the extraction and analysis of hydrologic information from topography as represented by a DEM. TauDEM 5 is a new version implemented to take advantage of parallel processing	Hydrology	2D	Watershed-Scale	Active	David
TaylorNonLinearDiffuser	Model non-linear soil creep after Ganti et al. (2012)	Hydrology Terrestrial	2D	Landscape-Scale Watershed-Scale	Only maintenance	Rachel
Terrainbento	A Python package for multi-model analysis in long-term drainage basin evolution	Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Katy
Terrapin	Build and destroy strath and fill terraces	Terrestrial	1.5D	Landscape-Scale Patch-Scale Reach-Scale Watershed-Scale		Andy
ThawLake1D	1-D numerical model of permafrost and subsidence processes.	Cryosphere Hydrology Terrestrial	1D	Point-Based Watershed-Scale		Nora
The TELEMAC system	a powerful integrated modeling tool for use in the field of free-surface flows.	Hydrology Marine	2D 3D	Regional-Scale	Active	-
TopoFlow	Spatially-distributed, D8-based hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Channels-Diffusive Wave	Diffusive Wave process component for flow routing in a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Channels-Dynamic Wave	Dynamic Wave process component for flow routing in a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Channels-Kinematic Wave	Kinematic Wave process component for flow routing in a D8-based, spatial hydrologic model.	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-DEM Smoother	TopoFlow-DEM Smoother	Hydrology		Watershed-Scale		Scott
TopoFlow-Data-HIS	The CUAHSI Hydrologic Information System	Hydrology		Watershed-Scale	Active	Scott
TopoFlow-Diversions	Diversions component for a D8-based, spatial hydrologic model.	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Evaporation-Energy Balance	Evaporation process component (Energy Balance method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Evaporation-Priestley Taylor	Evaporation process component (Priestley-Taylor method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Evaporation-Read File	Evaporation process component (read from file method) for a spatially-distributed hydrologic model.	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Infiltration-Green-Ampt	Infiltration process component (Green-Ampt method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Infiltration-Richards 1D	Infiltration process component (Richards 1D method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Infiltration-Smith-Parlange	Infiltration process component (Smith-Parlange method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Meteorology	Meteorology process component for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Saturated Zone-Darcy Layers	Saturated Zone process component (Darcy's law, multiple soil layers) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Snowmelt-Degree-Day	Snowmelt process component (Degree-Day method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoFlow-Snowmelt-Energy Balance	Snowmelt process component (Energy Balance method) for a D8-based, spatial hydrologic model	Hydrology	2D	Landscape-Scale Watershed-Scale	Active	Scott
TopoToolbox	A set of Matlab functions for topographic analysis	Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Active	Wolfgang
Topography Data Component	A CSDMS data component used to fetch and cache NASA Shuttle Radar Topography Mission (SRTM) and JAXA Advanced Land Observing Satellite (ALOS) land elevation data using the OpenTopography REST API.	Climate Coastal Cryosphere Ecosystems Geodynamic Human dimensions Hydrology Marine Terrestrial	2D	Continental Global Landscape-Scale Regional-Scale Watershed-Scale	Active	Mark
Tracer dispersion calculator	The model computes the streamwise and vertical dispersal of a patch of tracers in a gravel bed river	Terrestrial	1D	Landscape-Scale Reach-Scale Watershed-Scale	Active	Enrica
TransportLengthHillslopeDiffuser	Transport length hillslope diffusion.	Hydrology Terrestrial	2D	Landscape-Scale Regional-Scale Watershed-Scale	Only maintenance	Margaux
TreeThrow	Sediment transport by tree throw on hillslopes	Terrestrial				Matthew
TwoPhaseEulerSedFoam	A four-way coupled two-phase Eulerian model for sediment transport	Hydrology Terrestrial	3D	Grain-Scale Patch-Scale		Zhen
UEB	The Utah Energy Balance (UEB) Grid snowmelt model	Hydrology Terrestrial	2D	Watershed-Scale		David
UMCESroms	Chesapeake Bay Application, special case of Regional Ocean Modeling System (ROMS)	Marine				Yun
Underworld2	Underworld2 is an open-source, particle-in-cell finite element code tuned for large-scale geodynamics simulations.	Geodynamic	3D	Continental	Active	Louis
VIC	VIC (Variable Infiltration Capacity) is a macroscale hydrologic model that solves full water and energy balances, originally developed by Xu Liang at the University of Washington.	Hydrology	3D	Continental Global Regional-Scale	Active	Dennis
VegCA	Landlab component that simulates inter-species plant competition using a 2D cellular automata model.	Ecosystems Terrestrial	2D	Landscape-Scale Watershed-Scale	Only maintenance	Sai
Vegetation	Model plant dynamics using multiple representative plant species	Climate Ecosystems Hydrology Terrestrial	2D	Landscape-Scale Reach-Scale Watershed-Scale	Only maintenance	Sai
WACCM Dust-Sulfur	Whole atmosphere module of sulfate aerosols.	Climate	3D	Global		Ryan
WACCM-CARMA	atmospheric/aerosol microphysical model	Climate			As is, no updates are provided	Jason
WACCM-EE	GCM for deep paleoclimate studies	Climate				Eric
WASH123D	Watershed Model, River Hydraulics, Overland Flow, Subsurface Flow, Sediment Transport, Water Quality Transport	Hydrology Terrestrial				Gour-Tsyh (George)
WAVEREF	Wave refraction routine	Coastal			As is, no updates are provided	Rudy
WAVEWATCH III Data Component	A CSDMS data component used to fetch and cache WAVEWATCH III datasets.	Climate Coastal Ecosystems Geodynamic Hydrology Marine	2D	Continental Global Regional-Scale	Only maintenance	Eric
WAVEWATCH III ^TM	Spectral wind wave model	Coastal Marine	2D		Active	Hendrik
WBM-WTM	Water Balance/Transport Model	Hydrology Terrestrial	2D	Global	Active	Balazs
WBMsed	Global sediment flux and water discharge model.	Hydrology Terrestrial	2D	Continental Global	Active	Sagy
WDUNE	GUI implementation of the Werner (1995) cellular automata aeolian dune model	Terrestrial	2D	Landscape-Scale	As is, no updates are provided	Tom
WEPP	Process-based soil erosion by water at field/farm scale	Hydrology Terrestrial				Dennis
WILSIM	Landscape evolution model	Terrestrial	2D	Watershed-Scale		Wei
WINDSEA	Deep water significant wave height and period simulator during a hurricane routine	Coastal			As is, no updates are provided	Rudy
WOFOST	WOFOST (WOrld FOod STudies) is a simulation model for the quantitative analysis of the growth and production of annual field crops.	Terrestrial	1D	Point-Based Watershed-Scale	Active	Hendrik
WPHydResAMBL	E-book: Implementation of the Wright-Parker (2004) formulation for hydraulic resistance combined with the Ashida-Michiue (1972) bedload formulation.	Hydrology Terrestrial	1D	Watershed-Scale	As is, no updates are provided	Gary
WRF	Weather Research and Forecasting Model	Climate	3D	Continental Global Landscape-Scale Regional-Scale Watershed-Scale	Active	Bill
WRF-Hydro	The WRF-Hydro® Modeling System, an open-source community model, is used for a range of projects, including flash flood prediction, regional hydroclimate impacts assessment, seasonal forecasting of water resources, and land-atmosphere coupling studies. It produces forecasts and analyses for all major terrestrial water-cycle components: Precipitation, Streamflow, Soil moisture, Snowpack, Flooding, Groundwater.	Climate Coastal Cryosphere Ecosystems Hydrology Terrestrial	1D 2D	Continental Landscape-Scale Point-Based Reach-Scale Regional-Scale Watershed-Scale	Active	Molly
WSGFAM	Wave and current supported sediment gravity flow model	Coastal Marine				Carl
WWTM	The WWTM (Wind Wave Tidal Model) has been developed to describe hydrodynamic and wind-wave generation and propagation within shallow tidal environments	Coastal	2D	Landscape-Scale Regional-Scale		Luca
Wetland3P	A 3-point dynamic model for the morphological evolution of a backbarrier basin composed by marshes and mudflats	Coastal	1D	Landscape-Scale	Only maintenance	giulio
XBeach	Morphological changes, nearshore currents, wave propagation and sediment transport model	Coastal	2D	Regional-Scale	Active	Dano
YANGs	Fluvial sediment transport model	Terrestrial			As is, no updates are provided	Rudy
ZoneController	Controls zones and populates them with taxa.	Ecosystems Terrestrial	2D	Regional-Scale	Only maintenance	Nathan
ZoneTaxon	A zone-based taxon	Ecosystems Terrestrial	2D	Regional-Scale	Only maintenance	Nathan
Zscape	A simple parallel code to demonstrate diffusion	Terrestrial	1D			Chuck