![MODIS/MYD09GA_006_NDWI](https://developers.google.com/earth-engine/datasets/images/MODIS/MODIS_MYD09GA_006_NDWI_sample.png)

Dataset Availability
:   2002-07-04T00:00:00Z--2023-02-25T00:00:00Z

Dataset Producer
:


    [Google](https://earthengine.google.com/)

Cadence
:   1 Day

Tags
:
    aqua daily global modis myd09ga ndwi surface-reflectance usgs vegetation-indices

#### Description

The Normalized Difference Water Index (NDWI) is sensitive
to changes in liquid water content of vegetation canopies. It is
derived from the Near-IR band and a second IR band, ≈1.24μm when
available and the nearest available IR band otherwise. It ranges in
value from -1.0 to 1.0. See
[Gao (1996)](https://www.sciencedirect.com/science/article/pii/S0034425796000673)
for details. This product is generated from the MODIS/006/MYD09GA surface reflectance composites.

### Bands

**Bands**

Pixel size: 463.313 meters (all bands)

| Name | Pixel Size | Description |
|---|---|---|
| `NDWI` | 463.313 meters | Normalized Difference Water Index |

### Terms of Use

**Terms of Use**

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

### Explore with Earth Engine

> [!NOTE]
> **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)

### Code Editor (JavaScript)

```javascript
var dataset = ee.ImageCollection('MODIS/MYD09GA_006_NDWI')
                  .filter(ee.Filter.date('2018-04-01', '2018-06-01'));
var colorized = dataset.select('NDWI');
var colorizedVis = {
  min: 0.0,
  max: 1.0,
  palette: ['0000ff', '00ffff', 'ffff00', 'ff0000', 'ffffff'],
};
Map.setCenter(-7.03125, 31.0529339857, 2);
Map.addLayer(colorized, colorizedVis, 'Colorized');
```
[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_MYD09GA_006_NDWI) [MODIS Aqua Daily NDWI](https://developers.google.com/earth-engine/datasets/catalog/MODIS_MYD09GA_006_NDWI) The Normalized Difference Water Index (NDWI) is sensitive to changes in liquid water content of vegetation canopies. It is derived from the Near-IR band and a second IR band, ≈1.24μm when available and the nearest available IR band otherwise. It ranges in value from -1.0 to 1.0. See Gao (1996) ... MODIS/MYD09GA_006_NDWI, aqua,daily,global,modis,ndwi,surface-reflectance,usgs,vegetation-indices 2002-07-04T00:00:00Z/2023-02-25T00:00:00Z -90 -180 90 180 Google Earth Engine https://developers.google.com/earth-engine/datasets

- [](https://doi.org/https://earthengine.google.com/)
- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_MYD09GA_006_NDWI)