Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia
This dataset contains the Compound Topographic Index (CTI) for Australasia from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were developed and distributed by processing units. There are 11 processing units for Australasia. The distribution files have the number of...
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USGS Science Data Catalog
2017
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dataone:e00b8845-6cdb-4fe6-9542-4ab3bd3f3eee 2024-06-03T18:46:52+00:00 Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia Kristine L. Verdin ENVELOPE(-180.0,180.0,31.441668,-55.116665) 2017-01-01T00:00:00Z https://search.dataone.org/view/e00b8845-6cdb-4fe6-9542-4ab3bd3f3eee unknown USGS Science Data Catalog dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Australia and New Zealand Hawaii Dataset 2017 dataone:urn:node:USGS_SDC 2024-06-03T18:10:07Z This dataset contains the Compound Topographic Index (CTI) for Australasia from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were developed and distributed by processing units. There are 11 processing units for Australasia. The distribution files have the number of the processing unit appended to the end of the zip file name (e.g. au_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. 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 New Zealand ENVELOPE(-180.0,180.0,31.441668,-55.116665) |
institution |
Open Polar |
collection |
USGS Science Data Catalog (via DataONE) |
op_collection_id |
dataone:urn:node:USGS_SDC |
language |
unknown |
topic |
dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Australia and New Zealand Hawaii |
spellingShingle |
dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Australia and New Zealand Hawaii Kristine L. Verdin Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia |
topic_facet |
dem stream hydrologic derivatives pfafstetter Pfafstetter streams digital elevation models elevation inlandWaters Australia and New Zealand Hawaii |
description |
This dataset contains the Compound Topographic Index (CTI) for Australasia from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were developed and distributed by processing units. There are 11 processing units for Australasia. The distribution files have the number of the processing unit appended to the end of the zip file name (e.g. au_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. 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 |
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia |
title_short |
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia |
title_full |
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia |
title_fullStr |
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia |
title_full_unstemmed |
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Australasia |
title_sort |
compound topographic index (cti) from the hydrologic derivatives for modeling and analysis (hdma) database -- australasia |
publisher |
USGS Science Data Catalog |
publishDate |
2017 |
url |
https://search.dataone.org/view/e00b8845-6cdb-4fe6-9542-4ab3bd3f3eee |
op_coverage |
ENVELOPE(-180.0,180.0,31.441668,-55.116665) |
long_lat |
ENVELOPE(-180.0,180.0,31.441668,-55.116665) |
geographic |
Greenland New Zealand |
geographic_facet |
Greenland New Zealand |
genre |
Greenland |
genre_facet |
Greenland |
_version_ |
1800872332393185280 |