Скачать или смотреть Unprocessed DEM data download from Earthdata II ASTER DEM DATA Download

Unprocessed ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) DEM (Digital Elevation Model) data is a type of satellite-derived topographic data that is widely used for various scientific applications, such as geology, hydrology, and land surface modeling. This data is acquired by the ASTER instrument, which is mounted on the Terra satellite and has been in operation since 1999.

Unprocessed ASTER DEM data is often preferred over other types of elevation data because it provides a high spatial resolution of 30 meters and has global coverage. The unprocessed data is also available at no cost and can be downloaded from various sources, such as the NASA Earthdata website.

However, it is important to note that unprocessed ASTER DEM data may have certain limitations and errors due to various factors, such as atmospheric conditions, topographic shading, and geometric distortion. As a result, the data may require additional processing before it can be used for scientific analysis, such as filtering, smoothing, and georeferencing.

Researchers and scientists using unprocessed ASTER DEM data should be aware of these limitations and carefully evaluate the data quality and accuracy for their specific research needs. They should also consider using complementary data sources or conducting ground truth validation to improve the reliability of their analyses.
steps to download:-
1. search NASA Earthdata (link:- https://search.earthdata.nasa.gov/search ), @0:15
2. select a study area. @0:29
3. Set all the parameters. @0:31
4. Select the correct date set, @1:05
5. Download