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Service Description: Gridded Population of the World, Version 4 (GPWv4) Land and Water Area, Revision 11 grids measure surface areas of land and water in square kilometers per pixel. The land area grid provides estimates of the land area, excluding permanent ice and water, within each pixel, and was used to calculate the population density grids. The water area grid provides estimates of the water area (permanent ice and water), within each pixel. The sum of land area and water area of a pixel equals the total surface area of that pixel. The files for this data set were produced as global grids at 30 arc-seconds horizontal resolution (approximately 1km at the equator). To enable faster global processing, and in support of research communities, the 30 arc-second data was aggregated to 2.5 arc-minutes, 15 arc-minutes, 30 arc-minutes and 1 degree resolutions.
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Copyright Text: NASA SEDAC
Spatial Reference:
4326
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Single Fused Map Cache: false
Initial Extent:
XMin: -270.18126888217523
YMin: -81.95166163142
XMax: 270.181268882175
YMax: 203.18429003021134
Spatial Reference:
4326
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Full Extent:
XMin: -180
YMin: -90
XMax: 179.99999999999983
YMax: 89.99999999999991
Spatial Reference:
4326
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Units: esriDecimalDegrees
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Gridded Population of the World, Version 4 (GPWv4): Land and Water Area, Revision 11
Author: Center for International Earth Science Information Network - CIESIN - Columbia University
Comments: Gridded Population of the World, Version 4 (GPWv4) Land and Water Area, Revision 11 grids measure surface areas of land and water in square kilometers per pixel. The land area grid provides estimates of the land area, excluding permanent ice and water, within each pixel, and was used to calculate the population density grids. The water area grid provides estimates of the water area (permanent ice and water), within each pixel. The sum of land area and water area of a pixel equals the total surface area of that pixel. The files for this data set were produced as global grids at 30 arc-seconds horizontal resolution (approximately 1km at the equator). To enable faster global processing, and in support of research communities, the 30 arc-second data was aggregated to 2.5 arc-minutes, 15 arc-minutes, 30 arc-minutes and 1 degree resolutions.
Subject: To provide pixel-level land and water surface area estimates.
Category:
Keywords: gpw-v4-land-water-area-rev11; gpw-v4-land-water-area-rev11_landareakm; gpw-v4-land-water-area-rev11_waterareakm; land-use; water
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, AMF, geoJSON
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
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