Model:Alpine3D

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Alpine3D




Metadata

Also known as
Model type Modular
Model part of larger framework
Incorporated models or components:
Spatial dimensions 3D
Spatial extent
Model domain Terrestrial
One-line model description 3D model of alpine surface processes
Extended model description Alpine3D is a model for high resolution simulation of alpine surface processes, in particular snow processes. The model can be driven by measurements from automatic weather stations or by meteoro-logical model outputs. The core three-dimensional Alpine3D modules consist of a radiation balance model (which uses a view factor approach and includes shortwave scattering and longwave emission from terrain and tall vegetation) and a drifting snow model solving a diffusion equation for suspended snow and a saltation transport equation. The processes in the atmosphere are thus treated in three dimensions and coupled to a distributed one dimensional model of vegetation, snow and soil model (Snowpack) using the assumption that lateral exchange is small in these media. The model is completed by a conceptual runoff module. The model modules can be run in a parallel mode, using the POP-C++ toolkit, using a grid infrastructure to allow computationally demanding tasks.

Alpine3D is a valuable tool to investigate surface dynamics in mountains and is currently used to investigate snow cover dynamics for avalanche warning and permafrost development and vegetation changes under climate change scenarios. It could also be used to create accurate soil moisture assessments for meteorological and flood forecasting.

Keywords:

alpine surface processes, snow dynamics,


First name Mathias
Last name Bavay
Type of contact Technical contact
Institute / Organization WSL/SLF
Postal address 1 Flüelastrasse 13
Postal address 2
Town / City Davos Dorf
Postal code 7260
State
Country Switzerland
Email address bavay@slf.ch
Phone 0814170265
Fax


First name Michael
Last name Lehning
Type of contact Model developer
Institute / Organization
Postal address 1
Postal address 2
Town / City
Postal code
State
Country
Email address
Phone
Fax


Supported platforms Unix, Linux
Other platform
Programming language C++
Other program language
Code optimized
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 1997
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 http://models.slf.ch/
Source csdms web address
Program license type GPL v3
Program license type other
Memory requirements several Gbits (depends on the surface that is simulated)
Typical run time hours to days


Describe input parameters The area to be simulated has to be described (DEM, landuse). The meteorological input data (air temperature, relative humidity, precipitations...) have to be described (units, interpolations types). Some parameters about the model itself must be given (precision of the radiation ray tracing algorithms, characteristic lengths, parameters for a bucket model of runoff...)
Input format ASCII
Other input format
Describe output parameters for every grid cell: air and surface temperature, relative humidity, short and long wave radiation, snow height, snow water content, albedo

Global outputs: catchment discharge, surface and subsurface flow

At user defined locations: full snow profiles (temperature profile, grain types, grain sizes, density, water content, liquid water content)

Output format ASCII
Other output format
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? No
Describe post-processing software
Visualization software needed? Yes
If above answer is yes
Other visualization software any software able to visualize data in a 2D grid


Describe processes represented by the model Alpine3D is a model for high resolution simulation of alpine surface processes, in particular snow processes. The model can be driven by measurements from automatic weather stations or by meteoro-logical model outputs. The core three-dimensional Alpine3D modules consist of a radiation balance model (which uses a view factor approach and includes shortwave scattering and longwave emission from terrain and tall vegetation) and a drifting snow model solving a diffusion equation for suspended snow and a saltation transport equation. The processes in the atmosphere are thus treated in three dimensions and coupled to a distributed one dimensional model of vegetation, snow and soil model (Snowpack) using the assumption that lateral exchange is small in these media. The model is completed by a conceptual runoff module.
Describe key physical parameters and equations Snow settling, temperature diffusion, snow saltation and suspension, snow metamorphism, terrain radiation.
Describe length scale and resolution constraints The model has been used with cells from 5 meters up to kilometers scale.
Describe time scale and resolution constraints The time scale constraints usually comes from the input meteorological data: each time step must be provided with a set of input data.
Describe any numerical limitations and issues Overall, the model is very computationally intensive. It is usually ran on a grid or a cluster.


Describe available calibration data sets
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? The underlying 1D model (SNOWPACK) is already being used by various collaborating researchers/institutions.
Is there a manual available? Yes
Upload manual if available:
Model website if any
Model forum / discussion board
Comments


This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No but possible
PyMT component
Can be coupled with:
Model info
Mathias Bavay
Lehning
Citation indices Alpine3D
Nr. of pubs: 37
Citations: 1124
h-index: 16
Qrcode Alpine3D.png
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Introduction

History

References




Citation indices Alpine3D
Nr. of pubs: 37
Citations: 1124
h-index: 16



Featured publication(s)YearModel describedType of ReferenceCitations
Lehning, M.; Völksch, I.; Gustafsson, D.; Nguyen, T.A.; Stähli, M.; Zappa, M. 2006. ALPINE3D: a detailed model of mountain surface processes and its application to snow hydrology. HydroLogical Processes, 20, 2111–2128. 10.1002/hyp.6204
(View/edit entry)
2006Alpine3D
Model overview 265
Schlögl, S.; Marty, C.; Bavay, M.; Lehning, M.; 2016. Sensitivity of Alpine3D modeled snow cover to modifications in DEM resolution, station coverage and meteorological input quantities. Environmental Modelling & Software, 83, 387–396. 10.1016/j.envsoft.2016.02.017
(View/edit entry)
2016Alpine3D
Model overview 20
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