Aa posted an Question
January 07, 2020 • 22:33 pm 15 points
  • IIT JAM
  • Geology (GG)

What is DEM , ASTER and SRTN in gis ?

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    Eduncle Best Answer

    Dear Sonam,

    Greetings!!

    1. DEM- Digital elevation model is used to know the surface morphology of the earth. It helps in the flooding and landslide type natural calamity. Where it helps in the monitoring of surface feature.

    2. ASTER- Advance spaceborne thermal emission radiometer is an active satellite. This was send by Japan. As it is active satellite, it emits its own thermal energy and data are freely available for general usage.

    3. SRTM- Shuttle radar topography mission is used for the digital elevation model to get high resolution image of the different terrain present in the earth surface.

    Thank you for asking your query.

     

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