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Flow accumulation from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Asia

Dates

Publication Date
Time Period
2017

Citation

Verdin, K.L., 2017, Hydrologic Derivatives for Modeling and Applications (HDMA) database: U.S. Geological Survey data release, https://doi.org/10.5066/F7S180ZP.

Summary

This dataset contains the Flow Accumulation (FA) grid for the Asian continent from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The DEM data were developed and distributed by processing units. There are 19 processing units for Asia. The distribution files have the number of the processing unit appended to the end of the zip file name (e.g. as_dem_3_2.zip contains the DEM data for unit 3-2). The HDMA database provides comprehensive and consistent global coverage of raster and vector topographically derived layers, including raster layers of digital elevation model (DEM) data, flow direction, flow accumulation, slope, and compound topographic index (CTI); and vector layers of streams and catchment boundaries. [...]

Contacts

Point of Contact :
U.S. Geological Survey, Southwest Region
Originator :
Kristine L. Verdin
Metadata Contact :
Kristine L Verdin
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey

Attached Files

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as_fa1.jpg thumbnail 190.53 KB image/jpeg
as_fa2.jpg thumbnail 70.94 KB image/jpeg
as_fa_0_1.zip 449.95 MB application/zip
AS_fa_0_2.zip 782.05 MB application/zip
AS_fa_0_3.zip 292.65 MB application/zip
AS_fa_1_1.zip 273.37 MB application/zip
AS_fa_1_2.zip 235.44 MB application/zip
AS_fa_1_3.zip 314.58 MB application/zip
AS_fa_1_4.zip 12.12 MB application/zip
AS_fa_2.zip 133.51 MB application/zip
AS_fa_3.zip 46.26 MB application/zip
AS_fa_4.zip 120.11 MB application/zip
AS_fa_5.zip 102.55 MB application/zip
AS_fa_6.zip 128.4 MB application/zip
AS_fa_7_1.zip 7.52 MB application/zip
AS_fa_7_2.zip 169.86 MB application/zip
AS_fa_8.zip 516.66 MB application/zip
AS_fa_9_1.zip 558.41 MB application/zip
AS_fa_9_2.zip 179.28 MB application/zip
AS_fa_9_3.zip 389.92 MB application/zip
AS_fa_9_4.zip 310.31 MB application/zip
AS_fa_FGDC.xml
Original FGDC Metadata

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13.49 KB application/fgdc+xml

Purpose

This dataset contains the flow accumulation grid for the Asian continent from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. This dataset is appropriate for use in continental-scale modeling effort. The Pfafstetter codes provide topological information that can be useful for upstream and downstream tracing.
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Map

Communities

  • USGS Colorado Water Science Center

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