Table 1 Details of the maps, satellite images and digital elevation models used in this study
Sl. No. | Producing authority | Details of the maps, satellite images, DEM Datasets | Year of survey /date of pass | Scale /spatial resolution |
|---|---|---|---|---|
1 | United States Army Map Service (USAMS) | Map no. NH-44 1, Series U502 Edition 1, compiled in 1954 from Half-inch Series and Quarter-inch Series Map produced by Survey of India (actual surveyed network) | 1902–1946 | 1:250,000 |
2 | Survey of India (SoI) | Map nos. 53I/4, 53I/7, 53I/8, 53I/12 (actual surveyed network) | 1962–1963 | 1: 50,000 |
3 | National Remote Sensing Centre (NRSC), India | IRS LISS 3, Path-096 Row-049; IRS LISS 3, Path-097 Row-049 | 23 October 2008 | 23.5 m |
4 | CartoDEM (produced from Cartosat-1 by ISRO) : 78E31 N–79E32 N | 26 February 2008 | 30 m | |
5 | National Aeronautics and Space Administration (NASA), USA | ASTER GDEM : N31E078 | 17 October 2011 | 30 m |
6 | SRTM DEM : N31E078 | 11 February 2000 | 90 m | |
7 | Bing image Data source: www.bing.com/maps Imaging date information from: http://mvexel.dev.openstreetmap.org/bing/ | Worldview - 1 | September 2012 | 1 m |
8 | Generated DEMs | From Map no. NH-44 1, Series U502 Edition 1 | – | From 1:250,000 maps |
9 | From Map nos. 53I/4, 53I/7, 53I/8, 53I/12 | – | From 1: 50,000 maps | |
10 | Resampled from 30 m ASTER GDEM : N31E078 | – | 90 m | |
11 | Resampled from 30 m CartoDEM: 78E31 N–79E32 N | – | 90 m |