GIS Lookup: Detailed Data Layer Listing

Data Layer GraphicTitle: "SRTM Void Areas" (2006)
Description: SRTM Void Areas (North West, one of six data sets) represents those areas without elevation values within the SRTM coverage area (between 60 degrees North and 56 degrees South latitude) of the world. These void areas are a result of radar shadow, layover, and other effects of terrain, as well as technical radar interferometry phase unwrapping issues. These void areas also represent those areas where ESRI calculated an elevation value. The vast majority of voids were filled using a Delta Surface Fill (DSF) method utilizing the SRTM and GTOPO30. Any remaining voids were interpolated using the elevation values from the DSF method. SRTM Void Areas provides data quality information about the source and accuracy of the elevation values.
Keywords and Themes: Elevation, Shuttle Radar Topography Mission (SRTM), Shuttle Radar Topography Mission (SRTM) Void Areas
Filename Prefix: srtm_n_nodata_w.sdc
FTP Download (NCSU Affiliates only):   
Download Instructions: In the ftp window that opens, search for and save locally all files with the above Filename Prefix.  
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Mapped Drive Folder: /esri2006/ElevImage_World/srtm_void_filled/data_quality/
Total size of data files: 15.1 MB
Data Type: ESRI SDC data set
Feature Type: SDC Feature Database
Coordinate System: GCS_WGS_1984
Datum: D_WGS_1984Map Units: Decimal degrees

Spatial Extent: World
Source Scale: 1:25,000
Scale Note: Largest scale when displaying the data: 1:25,000.

Created by: U.S. Geological Survey Center for Earth Resource Observation and Science (EROS)
Released by: ESRI; ESRI International Distributors
Content Date:
Published Date: 20061001

Collection Name: ESRI® Data & Maps 2006
Physical Location: Reference GIS Data Cabinet
Call Number: G70.212 .E77 2006
Acquired Date: 20061122
Distribution Restrictions:


Links to Metadata, Documentation, and Mapping:

Record ID: 2907_edm06

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