I am working in a project of glacier mass balance. For my project I want to integrate the area of the drainage basin in a glaciological system model (GSM). As the drainage area changes with time due to topographic evolution (ice accumulation or melt), I need to be able to integrate some code which calculates this area in the GSM. Would anybody know where I could find some code to compute the drainage area of a region?
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1The 80's called. They want their programming language back. :p May I ask why you are asking for Fortran code?– Ragi Yaser BurhumCommented Feb 2, 2012 at 0:20
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1I think the OP needs FORTRAN because the GSM is written in FORTRAN. FORTRAN is still very popular in large computational models, e.g. climate models.– Paul HiemstraCommented Feb 2, 2012 at 11:55
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the GSM is effectivly written in fortran but if you know about a model in another language I could convert it.– kevinCommented Feb 2, 2012 at 18:34
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Is there any chance of calling an external program (eg, arcmap with Python) to do it for you, and dump the output somewhere usable? I'm not familiar with fortran's abilities, so that's why I ask. I'd recommend that as a simpler route. If not, you might check with the people who wrote ArcHydro at University of Texas: crwr.utexas.edu/giswr/hydro - I don't know if they use ArcGIS' builtin drainage area calculations or not, but I think otherwise they probably have some .NET code for it.– nicksanCommented Feb 7, 2012 at 19:10
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Check HEC-RAS.– Gago-SilvaCommented Jan 24, 2013 at 12:47
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1 Answer
Sue Greenlee's original code - that Esri's and many other watershed codes are based on - was published in FORTRAN in 1988. I'd go looking for that - don't see it on the web - but you could always email her! Kind of surprised it's not in GitHub, it's pretty neat code.
Jenson S. K. and J. O. Domingue. 1988. Extracting Topographic Structure from Digital Elevation Data for Geographic Information System Analysis. Photogrammetric Engineering and Remote Sensing 54 (11): 1593-1600.
