How does digital elevation work on Aster L1b?
The updated software provides digital elevation extraction and orthorectification from ASTER L1B input data without needing to enter ground control points or depending on external global DEMs at 30-arc-second resolution (GTOPO30). It utilizes the ephemeris and attitude data derived from both the ASTER instrument and the Terra spacecraft platform.
Which is the latest version of Aster dem?
Improvements/Changes from Previous Versions As of January 2021, the LP DAAC has implemented version 3.0 of the Sensor Information Laboratory Corporation ASTER DEM/Ortho (SILCAST) software, which is used to generate the Level 2 on-demand ASTER Orthorectified and Digital Elevation Model (DEM) products (AST14).
How are datasets ordered in the surface model?
The rule file that determines the sort order of datasets in the surface model. This is used to deconflict the surface where multiple datasets overlap and can be saved from the Compose Surface window. Leaving this parameter blank will result in the datasets being ordered alphabetically by their dataset name.
How are surface models created in bathymetric information system?
Creates a surface model within the Bathymetric Information System (BIS) workspace. If an existing model name is provided for the BIS Model Name parameter, the existing model will be overwritten if the BIS is stored in a file geodatabase, or a new model version will be created if the BIS is stored in a versioned enterprise geodatabase.
What is the aster orthorectified Digital Elevation Model ( DEM )?
The ASTER Digital Elevation Model and Orthorectified Registered Radiance at the Sensor (AST14DMO) product (https://lpdaac.usgs.gov/documents/618/ASTER_Earthdata_Search_Order_Instructions.pdf) form a multi-file product.
When to apply RCC V5 to Aster Data?
Starting June 23, 2021, radiometric calibration coefficient Version 5 (RCC V5) will be applied to newly observed ASTER data and archived ASTER data products. Details regarding RCC V5 are described in the following journal article.