Model:Gc2d

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Gc2d

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Summary Contact Technical specs In/Output Process Testing Other Component info 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 2D Spatial extent Model domain Terrestrial, Cryosphere One-line model description Glacier / ice sheet evolution model Extended model description Models the growth and evolution of valley glaciers and ice sheets Keywords: cryosphere, Name Mark Kessler Type of contact Model developer Institute / Organization University of Colorado Postal address 1 1560 30th street Postal address 2 Town / City Boulder Postal code 80305 State Colorado Country United States Email address mark.kessler@colorado.edu Phone Fax Name Eric Hutton Type of contact Technical contact Institute / Organization CSDMS, INSTAAR, University of Colorado Postal address 1 1560 30th street Postal address 2 Town / City Boulder Postal code 80305 State Colorado Country United States Email address huttone@colorado.edu Phone Fax Supported platforms Unix, Linux, Mac OS, Windows Other platform Programming language Python, Matlab Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2005 Does model development still take place? Yes If above answer is no, provide end year model development Code development status When did you indicate the 'code development status'? Model availability As code Source code availability (Or provide future intension) Through CSDMS repository Source web address Source csdms web address https://github.com/csdms-contrib/gc2d Program license type Apache public license Program license type other Memory requirements Minimal Typical run time hours Describe input parameters Landscape elevation, ELA with time Input format Other input format Matlab .mat files Describe output parameters Glacier thickness and elevation Output format Other output format Matlab .mat files 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 Glacier growth and evolution Describe key physical parameters and equations Describe length scale and resolution constraints kilometers Describe time scale and resolution constraints Tens to hundreds of years 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? None Is there a manual available? No Upload manual if available: Model website if any [[Model website::[1]]] Model forum / discussion board Comments This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant Yes WMT component No but possible PyMT component Is this a data component Can be coupled with: TopoFlow, TopoFlow-Snowmelt-Degree-Day, TopoFlow-Snowmelt-Energy_Balance, TopoFlow-Meteorology,

Model info Authors Mark Kessler Hutton Source code View in CSDMS GitHub repository Model citations Nr. of publications: 4 Total citations: 455 h-index: 4 m-quotient: 0.17 QR-code Link to this page Other models by author Gc2d

Introduction

gc2d a two-dimensional finite difference numerical model that simulates the formation and evolution of temperate valley glaciers on a two-dimensional topographic surface with a specified meteorological setting. Driven by a time series of mass balance (snow precipitation - melt rate), the model calculates ice surface elevations above a two-dimensional terrain by solving equations for ice flux and mass conservation using explicit methods. A number of other authors have employed one- and two-dimensional models based on similar sets of equations. However, gc2d integrates glacier and climate simulation components explicitly, and thus has the unique ability to simulate feedbacks between the changing ice surface and the climate forcing. In addition, the framework of this model permits the inclusion of discrete processes that modify the ice distribution, such as avalanching on steep terrain. The efficiency of this model allows simulation of glacial evolution over millennial timescales at spatial scales that resolve valley glaciers. Finally, from a computational standpoint, the simplicity of this model permits the investigation of significant regions of parameter space, allowing us to determine the effect of new processes or altered algorithms for them.

The above description is taken almost verbatim from Kessler et al. (2006).

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Nr. of publications:	4
Total citations:	455
h-index:	4
m-quotient:	0.17

Featured publication(s)	Year	Model described	Type of Reference	Citations
MacGregor, K.R.; Anderson, R.S.; Anderson, S.P.; Waddington, E.D.; 2000. Numerical Simulations of Glacial-Valley Longitudinal Profile Evolution.. Geology, 28, 1031-1034. <1031:NSOGLP>2.0.CO;2 10.1130/0091-7613(2000)28<1031:NSOGLP>2.0.CO;2 (View/edit entry)	2000	Gc2d	Model overview	192
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