According to him, Google is trying to produce elevation maps that can be updated every year, unlike the ones given out by SRTM
The authors duly acknowledge the NASA Distributed Active Archive Centre (DAAC) and the National Snow and Ice Data Centre (NSIDC) for making the MODIS snow albedo, MODIS LST, and SRTM
DEM data freely available for download; along with the Goddard Earth Sciences' (GES) Data and Information Services Center (DISC) and National Centers for Environmental Prediction/ Oregon State University/ Air Force/ Hydrologic Research Lab (NOAH) for making the Global Land Data Assimilation System (GLDAS) SWE data freely available for download.
This research also highlights the utility of open source SRTM
DEM and efficient MATLAB algorithms to automatically generate graphs and maps for quick evaluation and demarcation of active faults and zones that may trigger sudden landslides, glacial outbreaks and earthquakes.
Shuttle Radar Topography Mission (SRTM
) --The Long Term Archive.
Remotely sensed shuttle radar topographic mission (SRTM
) digital elevation model (DEM) data of 90 by 90 meter resolution is used for terrain analysis.
In this paper, we used available data, such as discrete-return LiDAR data, SRTM
(Shuttle Radar Topography Mission), satellite L-band SAR data, and Optical data, instead of the latest data, such as full-waveform LiDAR and X- and P-band SAR data, which have been shown in previous studies to be well-suited for forest height calculation.
Topographic variables (altitude and slope) were obtained from NASA's SRTM
(Shuttle Radar Topography Mission) (Jarvis et al., 2008).
a) Digital Elevation Model (DEM) of 30m resolution is acquired from Shuttle Radar Topographic Mission (SRTM
) to carry out this research.
The surface elevation, slope, and aspect are obtained from the SRTM
(Shuttle Radar Topography Mission), February 2000.