West Africa Coastal Vulnerability Mapping: Subset of High and Low Resolution Altimeter Corrected Elevations 2 (ACE2)

Metadata Updated: November 12, 2020

The West Africa Coastal Vulnerability Mapping: Subset of High and Low Resolution Altimeter Corrected Elevations 2 (ACE2) data set consists of extracts from the 3 arc-second (high) and 30 arc-second (low) resolution ACE2 data product packaged as GeoTIFFs. It includes values within 200 kilometers of the coast. ACE2 was created by synergistically merging the Shuttle Radar Topography Mission (SRTM) data set with Satellite Radar Altimetry within the region bounded by 60 degrees N and 60 degrees S. The primary altimetry data set used in the generation of this data set was the European Remote Sensing (ERS-1) Geodetic mission, which due to its small across track spacing presents a uniquely dense spatial distribution of tracks altimetry data over land surfaces. Data from ERS-2 and the Environmental Satellite (Envisat) Ku-band are included where appropriate. All of the altimeter data have been reprocessed using the Berry Expert System to retrack the waveforms. Over 11,000,000,000 SRTM pixels were adjusted using this unique network of control arcs of altimeter derived height data. In rainforest regions, extensive investigation has shown that the altimetry data returns ground values, whereas the SRTM signal bounces off the canopy. Thus ACE2 does a better job of providing ground values than SRTM in forested coastal regions of West Africa.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

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Sample browse graphic of the data set.

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher SEDAC
Unique Identifier Unknown
Identifier C1577573428-SEDAC
Data First Published 2018-12-06
Language en-US
Data Last Modified 2018-12-06
Category WACVM, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Berry, P. A. M., R. Smith, and J. Benveniste. 2018-12-06. West Africa Coastal Vulnerability Mapping: Subset of High and Low Resolution Altimeter Corrected Elevations 2 (ACE2). Palisades, NY. Archived by National Aeronautics and Space Administration, U.S. Government, Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4K0726D. https://doi.org/10.7927/H4K0726D.
Creator Berry, P. A. M., R. Smith, and J. Benveniste
Graphic Preview Description Sample browse graphic of the data set.
Graphic Preview File https://sedac.ciesin.columbia.edu/downloads/maps/wacvm/wacvm-subset-ace-v2-high-low-resolution/sedac-logo.jpg
Homepage URL https://doi.org/10.7927/H4K0726D
Metadata Type geospatial
Program Code 026:001
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Release Place Palisades, NY
Source Datajson Identifier True
Source Hash 7b667dbe7ea68ba5e05cb13d007975b840b2fd38
Source Schema Version 1.1
Spatial -16.71 1.65 16.21 13.9
Temporal 1994-01-01T00:00:00Z/2005-12-31T00:00:00Z

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