Contents
- 1 What spacecraft made more than 600 million measurements between 1997 and 2006 to create a global topography map?
- 2 How do I download Aster DEM data?
- 3 What is Aster DEM GIS?
- 4 What is the difference between SRTM and DEM?
- 5 What kind of data is on Mars HRSC?
- 6 Which is the Digital Elevation Model on Mars?
- 7 Where can you download the SRTM DEM data?
What spacecraft made more than 600 million measurements between 1997 and 2006 to create a global topography map?
The MOLA
After nearly a decade of discovery, MGS went silent in November, 2006 (NASA JPL, 2010). The MOLA created the most accurate global topographic map of any planet in the solar system, giving scientists elevation maps precise to within about 30 centimeters (1 foot) in the vertical dimension.
How do I download Aster DEM data?
- Search for ASTER GDEM at the top left.
- Pick the area.
- Get the list of URLs you want, and save as a text file.
- You will need a NASA account, and be logged in on your browser to do the downloads (the browser will prompt you to log in for the first download).
Who was first on Mars?
The Viking landers were the first spacecraft to land on Mars in the 1970s. Viking 1 and Viking 2 each had both an orbiter and a lander. On July 20, 1976 the Viking 1 Lander separated from the Orbiter and touched down on the surface of Mars.
What is Aster DEM GIS?
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a Japanese sensor which is one of five remote sensory devices on board the Terra satellite launched into Earth orbit by NASA in 1999. The instrument has been collecting data since February 2000.
What is the difference between SRTM and DEM?
SRTM uses radar observations to construct DEM while ASTER uses stereo imagery and photogrammetric techniques to extract DEM.
How do I open a DEM?
To play a Counter-Strike DEM file in Windows, first place it in the cstrike\ installation directory. Next, start Counter-Strike and open the console window. From the console window, type viewdemo demoname, where “demoname” is the filename without the “. dem” extension.
What kind of data is on Mars HRSC?
This data product, now at version 2, is a blend of digital elevation model (DEM) data derived from the Mars Orbiter Laser Altimeter (MOLA), an instrument aboard NASA’s Mars Global Surveyor spacecraft (MGS), and the High-Resolution Stereo Camera (HRSC), an instrument aboard the European Space Agency’s Mars Express (MEX) spacecraft.
Which is the Digital Elevation Model on Mars?
This digital elevation model (DEM) is based on data from the Mars Orbiter Laser Altimeter (MOLA; Smith et al., 2001), an instrument on NASA’s Mars Global Surveyor (MGS) spacecraft (Albee et al., 2001).
Where to find useful raster data sets for Mars?
I’m looking on the websites of the Mars Global Surveyor and the NASA sites, but all of the data is in jpeg or img form. Does anyone know where to find useful raster data sets for elevation and land cover (soil types)?
Where can you download the SRTM DEM data?
Where can you download the SRTM data? SRTM DEM data is being housed on the USGS Earth Explorer. To download, select your area of interest. Under the data sets tab, select Digital Elevation > SRTM > SRTM 1-ArcSecond Global.