![CIESIN/GPWv411/GPW_Water_Area](https://developers.google.com/earth-engine/datasets/images/CIESIN/CIESIN_GPWv411_GPW_Water_Area_sample.png)

Dataset Availability
:   2000-01-01T00:00:00Z--2020-01-01T00:00:00Z

Dataset Producer
:


    [NASA SEDAC at the Center for International Earth Science Information Network](https://doi.org/10.7927/H4Z60M4Z)

Tags
:
    [ciesin](https://developers.google.com/earth-engine/datasets/tags/ciesin) [gpw](https://developers.google.com/earth-engine/datasets/tags/gpw) [nasa](https://developers.google.com/earth-engine/datasets/tags/nasa) [population](https://developers.google.com/earth-engine/datasets/tags/population) [surface-ground-water](https://developers.google.com/earth-engine/datasets/tags/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](https://sedac.ciesin.columbia.edu/data/set/gpw-v4-land-water-area-rev11/docs)

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

**Bands**

Pixel size: 927.67 meters (all bands)

| Name | Min | Max | Pixel Size | Description |
|---|---|---|---|---|
| `water_area` | 0\* | 0.860558\* | 927.67 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](https://spdx.org/licenses/CC-BY-4.0.html)

### 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

- <https://doi.org/10.7927/H4Z60M4Z>

### Explore with Earth Engine

> [!NOTE]
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### Code Editor (JavaScript)

```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](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CIESIN/CIESIN_GPWv411_GPW_Water_Area) [GPWv411: Water Area (Gridded Population of the World Version 4.11)](https://developers.google.com/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_Water_Area) 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 https://developers.google.com/earth-engine/datasets

- [https://doi.org/10.7927/H4Z60M4Z](https://doi.org/https://doi.org/10.7927/H4Z60M4Z)
- [https://doi.org/10.7927/H4Z60M4Z](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/CIESIN_GPWv411_GPW_Water_Area)