Dataset Identification:
Resource Abstract:
- description: This contains the South American portion of the Hydrologic 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 (-180 , 180 , -90 ,
90 ) 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 60 North, the raster resolution of the data is 3-arc-seconds, corresponding
to the resolution of the SRTM. For the areas North of 60 , 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.; abstract:
This contains the South American portion of the Hydrologic 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 (-180 , 180 , -90 , 90 )
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 60 North, the raster resolution of the data is 3-arc-seconds, corresponding
to the resolution of the SRTM. For the areas North of 60 , 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.
Citation
- Title Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- South America.
-
- creation Date
2018-05-21T10:25:47.902998
Resource language:
Processing environment:
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Digital Transfer Options
-
- Linkage for online resource
-
- name Dublin Core references URL
- URL: https://doi.org/10.5066/F7S180ZP
- protocol WWW:LINK-1.0-http--link
- link function information
- Description URL provided in Dublin Core references element.
Linkage for online resource
- name Dublin Core references URL
- URL: https://doi.org/10.3133/ds1053
- protocol WWW:LINK-1.0-http--link
- link function information
- Description URL provided in Dublin Core references element.
Metadata data stamp:
2018-08-06T20:12:12Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:12:12Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
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- Contact information
-
-
- Address
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- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:b94eda8a-0223-4321-8029-59384e4f60d3
Metadata record format is ISO19139 XML (MD_Metadata)