Model:ILAMB

ILAMB

Also known as
Model type	Tool
Model part of larger framework

Incorporated models or components:

Spatial dimensions	1D, 2D, 3D
Spatial extent	Continental, Global, Regional-Scale
Model domain	Terrestrial, Hydrology, Marine, Climate, Ecosystems, Cryosphere
One-line model description	The International Land Model Benchmarking (ILAMB) toolkit
Extended model description	The International Land Model Benchmarking (ILAMB) project is a model-data intercomparison and integration project designed to improve the performance of land models and, in parallel, improve the design of new measurement campaigns to reduce uncertainties associated with key land surface processes. Building upon past model evaluation studies, the goals of ILAMB are to: develop internationally accepted benchmarks for land model performance, promote the use of these benchmarks by the international community for model intercomparison, strengthen linkages between experimental, remote sensing, and climate modeling communities in the design of new model tests and new measurement programs, and support the design and development of a new, open source, benchmarking software system for use by the international community.

Keywords:	benchmark, uncertainty, land surface processes, land model, CMIP5, CMIP6,

Name	Nathan Collier
Type of contact	Model developer
Institute / Organization	Oak Ridge National Laboratory
Postal address 1	P.O. Box 2008
Postal address 2	1 Bethel Valley
Town / City	Road Oak Ridge
Postal code	37831
State	Tennessee
Country	United States
Email address	nathaniel.collier@gmail.com
Phone
Fax

Supported platforms	Unix, Linux, Mac OS
Other platform
Programming language	Python
Other program language
Code optimized	Multiple Processors
Multiple processors implemented	Distributed memory
Nr of distributed processors
Nr of shared processors
Start year development	2015
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status	Active
When did you indicate the 'code development status'?	2020
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	https://github.com/rubisco-sfa/ILAMB
Source csdms web address
Program license type	Other
Program license type other	UT Battelle Open Source Software License
Memory requirements
Typical run time	Minutes to several hours

Describe input parameters	A configuration file specifying models and variables to confront against benchmark data sets.
Input format	ASCII
Other input format
Describe output parameters	A web page displaying skill scores for the models and plots (PNG) of the spatial distribution of model outputs versus benchmark data.
Output format	ASCII, Binary
Other output format
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	No
Describe post-processing software
Visualization software needed?	No
If above answer is yes
Other visualization software

Describe processes represented by the model	ILAMB takes a set of observational data encoded as CF-compliant netCDF files, extracts commensurate quantities from historical model results (ideally compliant with CMOR), and then subjects them to a gauntlet of statistical measures examining aspects of performance such as bias, RMSE, phase, interannual variability, and spatial distribution. This results in a hierarchical set of webpages which display and controls the flow of information.
Describe key physical parameters and equations
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues

Describe available calibration data sets	ILAMB has integrated testing of overall scores on a coarsened subset of observational data which runs via Azure pipelines.
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?	ILAMB is under continuous development with collaboration from researchers worldwide.

Is there a manual available?	No
Upload manual if available:
Model website if any	https://www.ilamb.org/doc/
Model forum / discussion board

Comments	For details on the methodology and underlying benchmarking philosophy, see the following paper: Nathan Collier, Forrest M. Hoffman, David M. Lawrence, Gretchen Keppel‐Aleks, Charles D. Koven, William J. Riley, Mingquan Mu, and James T. Randerson, "The International Land Model Benchmarking (ILAMB) System: Design, Theory, and Implementation", JAMES, 10 (11), 2018, https://doi.org/10.1029/2018MS001354

This part will be filled out by CSDMS staff

DOI model	International land Model Benchmarking (ILAMB) Package
For model version	2.0
Year version submitted	2016
Link to file	DOI:10.18139/ILAMB.v002.00/1251621

Can be coupled with:

Model info

Authors

Nathan Collier

Source code

DOI

Download ILAMB [DOI:10.18139/ILAMB.v002.00/1251621 version: 2.0]
Doi: International land Model Benchmarking (ILAMB) Package

Model citations

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Other models by author

Featured publication(s)	Year	Model described	Type of Reference	Citations
Collier, Nathan; Hoffman, Forrest M.; Lawrence, David M.; Keppel‐Aleks, Gretchen; Koven, Charles D.; Riley, William J.; Mu, Mingquan; Randerson, James T.; 2018. The International Land Model Benchmarking (ILAMB) System: Design, Theory, and Implementation. Journal of Advances in Modeling Earth Systems, 10, 2731–2754. 10.1029/2018MS001354 (View/edit entry)	2018	ILAMB	Model overview	135
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