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| Earth Resources Observation and Science (EROS) |
The flow direction data set, like all of the other
raster data sets, has been derived from the hydrologically
correct DEM. It defines the direction of flow from each
cell to its steepest down-slope neighbor. Values of flow
direction vary from 1 to 255. Defined flow directions
follow the convention adopted by ARC/INFO's flow direction
implementation:
| 32 | 64 | 128 |
|---|---|---|
| 16 | 1 | |
| 8 | 4 | 2 |
Download
HYDRO1k Flow Direction data set for Asia as a tar file
(15.8 MB)
Download entire HYDRO1k
data set for Asia as a tar file (277.2 MB)
|
For further assistance, please contact: Customer Services U.S. Geological Survey Center for Earth Resources Observation and Science (EROS) 47914 252nd Street Sioux Falls, SD 57198-0001 Tel: 800-252-4547 Tel: 605-594-6151 Fax: 605-594-6589 Email: custserv@usgs.gov Business Hours: Monday thru Friday, 8:00 a.m. to 4:00 p.m., central time |
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