Median Elevation
Citation Information
Title: Median Elevation
Source: Shuttle Radar Topography Mission (SRTM)
Date: 2000
Description: Jet Propulsion Laboratory, NASA. http://www2.jpl.nasa.gov/srtm/SRTM_paper.pdf
Description
Global grid of median elevation (m) of each cell. Native resolution is 3 arc second projected in Geographic Coordinate System WGS 1984.
Processing Procedure
1. In ArcMap 10.0, extrapolate existing data using a 40×40 cell rectangular neighborhood using the minimum elevation value.
2. Use zonal statistics to calculate mean values within each GLU.
Data Coverage
Data is coded by the number of cells covered by the native data (1), data extrapolation (2), and not covered by either (3).
| DGG Cell Coverage Report | |||||
| Coverage Codes | Frequency | Percent | Valid Percent | Cumulative Percent | |
| Valid | 1 | 1377271 | 95.3 | 95.3 | 95.3 |
| 2 | 66663 | 4.6 | 4.6 | 99.9 | |
| 3 | 1030 | .1 | .1 | 100.0 | |
| Total | 1444964 | 100.0 | 100.0 | ||