GPWv411: Water Area (Gridded Population of the World Version 4.11)

  • The GPWv411: Water Area dataset provides estimates of permanent ice and water area within each pixel at a 30 arc-second resolution (approximately 1km).

  • This dataset covers the period from 2000 to 2020 and was used to calculate population density for the Gridded Population of the World Version 4 (GPWv4) dataset.

  • Water area is modeled using proportional allocation from census and administrative units and is available through the NASA Socioeconomic Data and Applications Center (SEDAC).

  • The dataset is freely accessible under the CC-BY-4.0 license and can be explored using Google Earth Engine.

  • Data is provided by NASA SEDAC at the Center for International Earth Science Information Network.
CIESIN/GPWv411/GPW_Water_Area
Dataset Availability
2000-01-01T00:00:00Z–2020-01-01T00:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("CIESIN/GPWv411/GPW_Water_Area")
Tags
ciesin gpw nasa population surface-ground-water

Description

This dataset contains estimates of the water area (permanent ice and water) within each pixel, and was used to calculate the GPW v4.11 population density datasets.

General Documentation

The Gridded Population of World Version 4 (GPWv4), Revision 11 models the distribution of global human population for the years 2000, 2005, 2010, 2015, and 2020 on 30 arc-second (approximately 1 km) grid cells. Population is distributed to cells using proportional allocation of population from census and administrative units. Population input data are collected at the most detailed spatial resolution available from the results of the 2010 round of censuses, which occurred between 2005 and 2014. The input data are extrapolated to produce population estimates for each modeled year.

Bands

Pixel Size
927.67 meters

Bands

Name Min Max Pixel Size Description
water_area 0* 0.860558* meters

Estimates for water area within each 30-arc second pixel.
* estimated min or max value

Terms of Use

Terms of Use

CC-BY-4.0

Citations

Citations:

  • Center for International Earth Science Information Network - CIESIN - Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Water Area, Revision 11. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4Z60M4Z. Accessed DAY MONTH YEAR.

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

var dataset = ee.ImageCollection('CIESIN/GPWv411/GPW_Water_Area');
var raster = dataset.select('water_area');
var raster_vis = {
  'min': 0.0,
  'palette': [
    'f5f6da',
    '180d02'
  ],
  'max': 0.860558
};
Map.setCenter(79.1, 19.81, 3);
Map.addLayer(raster, raster_vis, 'water_area');
Open in Code Editor
This dataset contains estimates of the water area (permanent ice and water) within each pixel, and was used to calculate the GPW v4.11 population density datasets. General Documentation The Gridded Population of World Version 4 (GPWv4), Revision 11 models the distribution of global human population for the years 2000, 2005, …
CIESIN/GPWv411/GPW_Water_Area, ciesin,gpw,nasa,population,surface-ground-water
2000-01-01T00:00:00Z/2020-01-01T00:00:00Z
-90 -180 90 180
Google Earth Engine