Flow Accumulation Algorithm

You could also look at calling out to a GIS environment from R to make the calculation. For example, there are bridge libraries to talk to SAGA [1], GRASS [2], and ArcGIS [3] from within R which can all read data formats raster can create.

1. https://cran.r-project.org/web/packages/RSAGA/
2. https://cran.r-project.org/web/packages/rgrass7/
3. https://cran.r-project.org/web/packages/RPyGeo/


-----Original Message-----
From: R-sig-Geo [mailto:r-sig-geo-bounces at r-project.org] On Behalf Of Tim Peterson
Sent: Wednesday, November 18, 2015 4:53 PM
To: r-sig-geo at r-project.org
Subject: Re: [R-sig-Geo] Flow Accumulation Algorithm

Hi Andre

Have you tried using TauDEM? The following demonstrates that it can be called from R - http://hydrology.usu.edu/taudem/taudem5/TauDEMRScript.txt

Also, TauDEM includes the much more realistic D-infinity flow direction and accumulation.

Cheers

Tim

Hi everyone,

Does anyone knows where I can find a code in R for the computation of 
flow accumulation from a DEM?

I'm having a problem because the raster package does not perform this 
task in a straightforward way.

Any hints are welcome.
Regards,

--
----------------------
Dr. Tim Peterson

The Department of Infrastructure Engineering The University of Melbourne, 3010 Australia
T: +61 3 8344 9950 <tel:%2B61%203%208344%209950>, M: +61 0438 385 937 <tel:%2B61%200438%20385%20937>

Dept. profile : 
http://www.ie.unimelb.edu.au/people/staff.php?person_ID=141135
Research Gate : https://www.researchgate.net/profile/Tim_Peterson7
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