Model:Gc2d

Contact

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	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property.
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	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Additional country" property.
Email address	huttone@colorado.edu
Phone
Fax

Edit Model information

Gc2d

Metadata

Summary Also known as Model type Single Model part of larger framework Note on status model Date note status model cryosphere, Technical specs 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 Program license type Apache public license Program license type other Memory requirements Minimal Typical run time hours In/Output 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 Process 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 Testing 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 -- Other 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 Download statistics <pbars ytitle=Downloads Title='Monthly Downloads gc2d' xlabels=true size=900x200 ymax=30 grid=true box=true cubic=true plots=open xformat=number connected=true angle=90 legend> ,Total downloads: 219 2008 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,1 Dec,2 2009 - Jan,5 Feb,0 Mar,2 Apr,2 May,5 Jun,7 Jul,0 Aug,3 Sep,15 Oct,3 Nov,5 Dec,9 2010 - Jan,5 Feb,2 Mar,2 Apr,0 May,9 Jun,5 Jul,8 Aug,1 Sep,5 Oct,4 Nov,5 Dec,8 2011 - Jan,6 Feb,4 Mar,0 Apr,7 May,0 Jun,3 Jul,2 Aug,0 Sep,0 Oct,3 Nov,1 Dec,2 2012 - Jan,0 Feb,1 Mar,3 Apr,1 May,0 Jun,4 Jul,4 Aug,1 Sep,0 Oct,1 Nov,2 Dec,1 2013 - Jan,7 Feb,1 Mar,1 Apr,10 May,8 Jun,2 Jul,5 Aug,2 Sep,1 Oct,3 Nov,3 Dec,1 2014 - Jan,2 Feb,0 Mar,3 Apr,1 May,0 Jun,2 Jul,1 Aug,1 Sep,4 Oct,0 Nov,0 Dec,0 2015 - Jan,1 Feb,1 Mar,0 Apr,0 May,0 Jun,0 Jul,0 </pbars> 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) . References History Issues Help Input Files Output Files Download source code