Digital Maps and Geospatial Data | Princeton University
HYDRO 1K Elevation Derivative Database
- EROS Data Center
The drainage basins distributed with the HYDRO1k data set suite are
derived using the vector stream networks along with the flow direction data set.
Each polygon in the basin data set has been tagged with a Pfafstetter code
uniquely identifying each sub-basin. A detailed description of the coding scheme
can be found in Verdin. Additional attributes defining the characteristics of
each sub-basin have been developed.
- unkn and 0
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