Model:CryoGrid3

CryoGrid3

Also known as
Model type	Single
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions	1D
Spatial extent	Reach-Scale
Model domain	Terrestrial, Cryosphere
One-line model description	CryoGrid 3 is a simple land-surface scheme dedicated to modeling of ground temperatures in permafrost environments.
Extended model description	The model calculates the surface energy balance in order to represent energy transfer processes between the atmosphere and the ground. These processes include the radiation balance, the exchange of sensible heat, as well as evaporation and condensation. For a realistic representation of the thermal dynamics of the ground, the model includes processes such as the phase change of soil water and an insulating snow cover during winter.

Keywords:	Surface energy balance, permafrost,

Name	Sebastian Westermann
Type of contact	Model developer
Institute / Organization	Department of Geosciences, University of Oslo
Postal address 1
Postal address 2
Town / City	Oslo
Postal code	0371
State
Country	Norway
Email address	sebastian.westermann@geo.uio.no
Phone
Fax

Name	Moritz Langer
Type of contact	Model developer
Institute / Organization	Alfred-Wegener-Institute Potsdam
Postal address 1
Postal address 2
Town / City	Potsdam
Postal code
State
Country	Germany
Email address	mlanger@awi.de
Phone
Fax

Supported platforms	Unix, Mac OS, Windows
Other platform
Programming language	Matlab
Other program language
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development	2014
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/CryoGrid/CryoGrid3
Source csdms web address
Program license type	GPL v3
Program license type other
Memory requirements	--
Typical run time	--

Describe input parameters	[[Describe input parameters model::The model is driven by time series of (i) air temperature Tair [K], relative or absolute humidity (RH [-] or q [-]) and wind speed u [ms−1] at a known height above ground h [m], (ii) incoming short-wave and long-wave radiation (Sin and Lin) [Wm−2], (iii) air pressure p [P a], and (iv) rates of snowfall and rainfall (Psand Pr) [ms−1].]]
Input format	ASCII
Other input format
Describe output parameters
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?	No
If above answer is yes
Other visualization software

Describe processes represented by the model	For forward time integration, the simplest possible scheme, first-order forward Euler, is employed.
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
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?

Is there a manual available?	Yes
Upload manual if available:	Media:Cryogrid3.pdf
Model website if any
Model forum / discussion board

Comments

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Can be coupled with:

Model info

Authors

Sebastian Westermann

Langer

Source code

Model citations

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Featured reference(s)	Open Access Status	Year	Type of Reference	Cited
Westermann, S.; Langer, M.; Boike, J.; Heikenfeld, M.; Peter, M.; Etzelmüller, B.; Krinner, G.; 2016. Simulating the thermal regime and thaw processes of ice-rich permafrost ground with the land-surface model CryoGrid 3. Geoscientific Model Development, 9523–546. 10.5194/gmd-9-523-2016	cc-by · publishedVersion	2016	a module overview describing a module	177