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Void filled SRTM data at CGIAR-CSI Archived 2013-02-07 at the Wayback Machine; USGS HydroSHEDS – Full resolution SRTM-based DEM for hydrological applications; Software that can read and process SRTM data: 3dem, GRASS GIS, SAGA GIS, MapWindow GIS, DG Terrain Viewer/Void Killer, Virtual Terrain Project
As of 2 April 2016, the entire catalogue of ASTER image data became publicly available online at no cost. [4] It can be downloaded with a free registered account from either NASA's Earth Data Search delivery system [5] or from the USGS Earth Explorer delivery system. [6]
This is a list of free and open-source software for geological data handling and interpretation. The list is split into broad categories, depending on the intended use of the software and its scope of functionality. Notice that 'free and open-source' requires that the source code is available and users are given a free software license.
Demo map showing high-resolution SWBD coastlines. The SRTM Water Body Data (SWBD) is a geographical dataset (2003) encoding high-resolution worldwide coastline outlines in a vector format, published by NASA and designed for use in geographic information systems and mapping applications.
Online collection of all digital USGS 1:24K scale topographic maps (as well as various other GIS data) covering the United States, available as a free download. NPScape United States Department of the Interior National Park Service NPScape is a landscape dynamics monitoring project that provides landscape-level data, tools, and evaluations for ...
The images, archived in the United States and at Landsat receiving stations around the world, are a unique resource for global change research and applications in agriculture, cartography, geology, forestry, regional planning, surveillance and education, and can be viewed through the U.S. Geological Survey (USGS) "EarthExplorer" website.
SRTM data, being derived from radar, represents the elevation of the first-reflected surface—quite often tree tops. So, the data are not necessarily representative of the ground surface, but the top of whatever is first encountered by the radar. Submarine elevation (known as bathymetry) data is generated using ship-mounted depth soundings.
Animation showing atmosphere and shading effects in v1.4 USGS Urban Ortho-Imagery of Huntington Beach, California in older version of WorldWind (1.2) Rapid Fire MODIS – Hurricane Katrina A cyclone moving across the Indian Ocean (on normal cloud cover – not Rapid Fire MODIS) Moon – Hypsometric Map layer Mars (THEMIS layer) – Olympus Mons Hurricane Dean in NASA WorldWind Washington DC ...