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

Dataset Availability

2000-01-01T00:00:00Z–2020-01-01T00:00:00Z

Dataset Provider

NASA SEDAC at the Center for International Earth Science Information Network

Earth Engine Snippet

ee.ImageCollection("CIESIN/GPWv411/GPW_Water_Mask")

Tags

ciesin gpw nasa population

Description

This dataset identifies water pixels; non-water pixels are masked. The water mask was used to exclude areas of water and permanent ice from the population allocation.

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 1km) 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

Resolution
927.67 meters

Bands

Name	Min	Max	Description
water_mask			Water mask
Bitmask for water_mask Bits 0-1: Identifies water pixels; non-water pixels are masked 0: Total water pixels that are completely water and/or permanent ice. 1: Partial water pixels that also contain land. 2: Total land pixels. 3: Ocean pixels.

* 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 Mask, Revision 11. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H42Z13KG. Accessed DAY MONTH YEAR.

DOIs

• https://doi.org/10.7927/H42Z13KG

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('CIESIN/GPWv411/GPW_Water_Mask');
var raster = dataset.select('water_mask');
var raster_vis = {
  'min': 0.0,
  'palette': [
    '005ce6',
    '00ffc5',
    'bed2ff',
    'aed0f1'
  ],
  'max': 3.0
};
Map.setCenter(-88.6, 26.4, 1);
Map.addLayer(raster, raster_vis, 'water_mask');

Open in Code Editor

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

This dataset identifies water pixels; non-water pixels are masked. The water mask was used to exclude areas of water and permanent ice from the population allocation. 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_Mask, ciesin,gpw,nasa,population

2000-01-01T00:00:00Z/2020-01-01T00:00:00Z

Google Earth Engine

https://developers.google.com/earth-engine/datasets

• https://doi.org/10.7927/H42Z13KG