| Title | HYDRO-1 Kilometer Flow Drainage Network |
| Date | 5-05-2006 |
| Date type | creation |
| Edition | Second |
| Presentation form | mapDigital |
| Abstract | H1k_FLOW: River "flow accumulation" network from the HYDRO1k for Africa, reprojected to decimal degrees from Lambert Azimuthal Equal Area base, the only "networked" AWRD River layer. HYDRO1k is the Global Hydrological 1 kilometre database of hydrologically filled DEMs, "river" flow, and watershed networks based on the GTopo30. The H1K_FLOW shapefile data layer is comprised of 15478 derivative raster watershed and flow network features derived based on 4 000 cell data originally from HYDRO1k. The layer provides nominal analytical/mapping at 1:2 000 000. Data processing is complete globally, this is an African subset.
HYDRO1k - HYDRO1k - Global Hydrological 1 kilometre database of hydrologically filled DEMs; AWRD - FAO-FIMA?s African Water Resources Database & Tools Interface; DEM - Digital Elevation Model. |
| Purpose | A six level watershed model and derivative flow routes. |
| Status | completed |
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| Maintenance and update frequency | asNeeded |
| Descriptive keywords |
watershed
,
flow network
,
water
,
environment
,
hydrology
,
rivers
,
African Water Resource Database
,
AWRD
(theme). |
| Descriptive keywords |
Africa
(place). |
| Access constraints | copyright |
| Use constraints | copyright |
| Other constraints | |
| Spatial representation type | vector |
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| Language | English |
| Character set | utf8 |
| Topic category code | inlandWaters |
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| Supplemental Information | This map is part of two publications entitled: "Jenness, J.; Dooley, J.; Aguilar-Manjarrez, J.; Riva, C. African Water Resource Database. GIS-based tools for inland aquatic resource management. 1. Concepts and application case studies CIFA Technical Paper. No.33, Part 1. Rome, FAO. 2007. 167p. " "Jenness, J.; Dooley, J.; Aguilar-Manjarrez, J.; Riva, C. African Water Resource Database. GIS-based tools for inland aquatic resource management. 2. Technical manual and workbook. CIFA Technical Paper. No. 33, Part 2. Rome, FAO. 2007. 308 p." The primary AWRD interface, tool-sets and data integral to the function of the AWRD are distributed in two DVD's accompanying CIFA No. 33, Part 2, and are also available for download from FAO's GeoNetwork and GISFish GIS portals. |