Remote Sensing & GIS:- Online Free Sources

Table: List of Free Spatial Data from Bhuvan (bhuvan.nrsc.gov.in)

Satellite/Sensor	Data Available	Usability
Cartosat-1	Elevation data (30m) i.e.,  Digital  Elevation  Model (DEM)	Watershed  Characterisation  and Hydrological  Modelling (e.g.,  basin  area, flowline  length,  flowline slope,  flow direction,  flow  accumulation,  runoff  coefficient,  flood inundation etc.)   Dam Site Selection Route Alignment in Hilly region Sun light availability and Shadow simulation
Oceansat-2 (OCM2)	Surface Water Layer (360m)	Regular  Monitoring of  Water  Resources  (like  Water availability/extent in Lake/River/Dams etc.).
Oceansat-2 (OCM2)	Surface Albedo (1km)	Evapotranspiration and Energy-Balance Studies.
Oceansat-2 (OCM2-GAC)	NDVI (8km & 1km) Vegetation Fraction (1km)	Drought Monitoring Urban Greenness Quantification Impervious Surface Extraction
Multi-Sensors data based	Hydrological  Products (16.5km):   Surface Runoff  Surface Soil Moisture  Evapotranspiration	Drought Monitoring Watershed Characterisation Hydrological Modelling Energy/Water Balance
IRS (LISS II)	National Soil Data (5km): Soil Depth Soil Texture Mean Soil Carbon Density	Carbon Balance studies Regional CO2 emission Hydrological/Climate Modelling
Resourcesat-2 (LISS III )	National  Land  Degradation Data (5km): Salt Affected Area  Wind Erosion Water Erosion Water Logging	Hydrological/Climate Modelling Energy Budget Carbon Cycle

 

 Table: Other Free Sources of Spatial Data available in Web

Website	Data Available	Usability
https://earthdata.nasa.gov/	NASA Earth Data Repository	For all applications. (Satellite data, theme-based data, field campaign data etc.). For civil Engineering - see under Human Dimensions and Land.
http://opentopo.sdsc.edu/lidar	OPENTOPOGRAPHY data LIDAR Data (sub-meter resolution)	3D City Modelling Building Foot Print extraction Oil & Gas Pipeline Planning Electricity Routing Earthquake Damage/Risk Assessment
http://vterrain.org/Locations/eu/	Europe LIDAR data	City Level Applications 3D Applications
ftp://ftp.dnr.state.mn.us/pub/gisftp/lidar	Minnesota  Free  LIDAR  Data and Training Materials	LIDAR Learning City Level Applications 3D Applications
https://modis.gsfc.nasa.gov/data/dataprod/	MODIS data* Land Products Atmospheric Products Ocean Products Cryosphere Products (250m,  1km  and  5km resolutions)	Land Degradation studies Vegetation Monitoring Climate Change Studies (District  Level,  Regional  Level  and Country Level Studies)
https://trmm.gsfc.nasa.gov/data_dir/data.html	TRMM Data Rainfall Products (0.25degree Resolution)	Drought Monitoring Runoff Modeling Evapotranspiration studies
https://lta.cr.usgs.gov/SRTM1Arc     http://gdex.cr.usgs.gov/gdex/	SRTM DEM Elevation data (30m & 90m Resolution)   ASTER DEM Elevation data (15m & 30m Resolution)	Large Area Topographic Modelling Earthquake Engineering Hydrological Modelling DEM/DSM Gravity Modelling (see also Table 1)
http://disc.sci.gsfc.nasa.gov/hydrology/data-holdings/parameters	GES-DISC Modelled Data Rainfall rate Snowfall rate Surface runoff Snowmelt Incident Solar Radiation Surface Temperature Ground heat flux Near-surface wind Near-surface humidity Soil Moisture (1km to 2.5degree resolutions)	Earth System Modelling Hydrological Modelling Drought Monitoring Runoff Modelling
http://earthexplorer.usgs.gov/	LANDSAT & AVHRR data Multispectral and Thermal data (30m resolution)	EIA Landcover Mapping Urban heat Island studies Route Alignment Site Suitability Studies Land Degradation studies
http://openstreetmapdata.com/data     http://download.geofabrik.de/asia.html	OPEN STREET Vector DATA Land polygons Coastlines data Water Polygons     OPEN STREET Asia Data Road Network Rail Network Building Foot Prints Land use polygons Places	Planning and Decision Making Emergency Management Utility/Facility Management Optimal Path Analysis
http://worldclim.org/version2	WORLDCLIM data Monthly mean Climate Data (Temperature,  rainfall,  wind speed, solar radiation) (1970 to 2000 average) (1km to 18km resolution)	Earth System Modelling Hydrological Modelling Drought Monitoring Wind Energy Site Selection Solar Energy Site Selection
http://bhuvan-poi.nrsc.gov.in:8080/geonetwork/srv/eng/main.home	BHUVAN Data Discovery Diverse Data over India	For Diverse Applications