digital elevation model digital terrain model

2003), to ascertain the relative efficacy of its constituents and operative mechanisms (Brierley et al. Hence it needs to be quantitatively analyzed (Pike 2000 Lague et al. Topography is a key controlling factor in the operation of a variety of natural processes (Summerfield and Hulton 1994 Montgomery and Brandon 2002). The above dataset(s) supporting the analyses and conclusions of this article are available in the following repositories: SRTM 90 m data- repository, ASTER GDEM 30 m Data- repository, CartoDEM 30 m Data- repository, US-AMS Topographical Map of 1:250,000 scale- repository at the University of Texas, Austin. The softwares used for this paper are the ArcGis and MS-Office suites. The Survey of India topographical map was obtained from the relevant map sales office in Dehradun, India. Of the two topographical maps used in this study, the US-AMS Map was obtained freely from the Perry Casteneda Map Library at the University of Texas, Austin which can be accessed and downloaded freely online. Other high resolution satellite imagery for the study area were obtained from the Google Earth platform. The LISS-III Image on which the GPS points are overlain was also obtained from this Bhuvan portal. The CartoDEM tiles were downloaded from the Indian Space Research Organisation’s (ISRO) Geo-Platform called Bhuvan which gives free access to different geospatial datasets. The ASTER GDEM and SRTM DEM datasets used were downloaded from the United States Geological Survey (USGS) EarthExplorer repository and the CGIAR Consortium for Spatial Information (CGIAR-CSI) websites, respectively, where data tiles may be selected and obtained freely.

Associated Data Data Availability StatementĪlmost all the data used as part of this study can be found freely in online repositories.

Digital elevation model digital terrain model