Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa
This dataset contains the African continent from the Hydrological Derivatives for Modeling and Analysis (HDMA) database. The HDMA database provides comprehensive and consistent global coverage of raster and vector topographically derived layers, including raster layers of digital elevation model (DE...
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USGS Science Data Catalog
2017
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dataone:942c7f96-dacc-406c-9dd0-9266824c94d9 2024-06-03T18:46:52+00:00 Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa Kristine L. Verdin ENVELOPE(-31.269167,77.6025,39.726665,-54.465) 2017-01-01T00:00:00Z https://search.dataone.org/view/942c7f96-dacc-406c-9dd0-9266824c94d9 unknown USGS Science Data Catalog dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Africa Dataset 2017 dataone:urn:node:USGS_SDC 2024-06-03T18:10:07Z This dataset contains the African continent from the Hydrological Derivatives for Modeling and Analysis (HDMA) database. 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. The coverage of the data is global (-180º, 180º, -90º, 90º) with the underlying DEM being a hybrid of three datasets: HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales), Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) and the Shuttle Radar Topography Mission (SRTM). For most of the globe south of 60º North, the raster resolution of the data is 3-arc-seconds, corresponding to the resolution of the SRTM. For the areas North of 60º, the resolution is 7.5-arc-seconds (the smallest resolution of the GMTED2010 dataset) except for Greenland, where the resolution is 30-arc-seconds. The streams and catchments are attributed with Pfafstetter codes, based on a hierarchical numbering system, that carry important topological information. Dataset Greenland USGS Science Data Catalog (via DataONE) Greenland ENVELOPE(-31.269167,77.6025,39.726665,-54.465) |
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Open Polar |
collection |
USGS Science Data Catalog (via DataONE) |
op_collection_id |
dataone:urn:node:USGS_SDC |
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unknown |
topic |
dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Africa |
spellingShingle |
dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Africa Kristine L. Verdin Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa |
topic_facet |
dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Africa |
description |
This dataset contains the African continent from the Hydrological Derivatives for Modeling and Analysis (HDMA) database. 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. The coverage of the data is global (-180º, 180º, -90º, 90º) with the underlying DEM being a hybrid of three datasets: HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales), Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) and the Shuttle Radar Topography Mission (SRTM). For most of the globe south of 60º North, the raster resolution of the data is 3-arc-seconds, corresponding to the resolution of the SRTM. For the areas North of 60º, the resolution is 7.5-arc-seconds (the smallest resolution of the GMTED2010 dataset) except for Greenland, where the resolution is 30-arc-seconds. The streams and catchments are attributed with Pfafstetter codes, based on a hierarchical numbering system, that carry important topological information. |
format |
Dataset |
author |
Kristine L. Verdin |
author_facet |
Kristine L. Verdin |
author_sort |
Kristine L. Verdin |
title |
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa |
title_short |
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa |
title_full |
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa |
title_fullStr |
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa |
title_full_unstemmed |
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa |
title_sort |
hydrologic derivatives for modeling and analysis (hdma) database -- africa |
publisher |
USGS Science Data Catalog |
publishDate |
2017 |
url |
https://search.dataone.org/view/942c7f96-dacc-406c-9dd0-9266824c94d9 |
op_coverage |
ENVELOPE(-31.269167,77.6025,39.726665,-54.465) |
long_lat |
ENVELOPE(-31.269167,77.6025,39.726665,-54.465) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
_version_ |
1800872319834390528 |