hello sir, why value of Elevation in dem differ with its resolution ? For example study area DEM with 30 m resolution (SRTM-USGS) show value: 2143-399 (high-low) whereas DEM of the same with 12.5 m resolution from ALOSPALSAR (Alaska Satellite Facility)show value: 2100-363 (high-low). Which is correct and what are the reason behind it. Please give the answer.
@@Sandip21111968 there are plenty of GIS softwares. QGIS is a free and simple software. The most popular one is ArcGIS (cracked versions available online). One cannot directly handle the dem files at beginning. U need to learn step by step. Learn basic of software and browse with specific key words. Best of luck.
It is very kind of you Arun Saraf Sir, that very large details for studying DEM is given in very informative small capsules..It will definitely help GIS study in our country.