AI-generated Key Takeaways
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The MODIS/MCD43A4_006_NDWI dataset provides daily global Normalized Difference Water Index (NDWI) values, derived from MODIS surface reflectance composites.
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NDWI, ranging from -1.0 to 1.0, indicates changes in liquid water content within vegetation canopies using near-infrared and infrared bands.
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This dataset is freely available for use, sale, and redistribution through the Google Earth Engine platform.
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The data covers the period from February 24, 2000, to February 10, 2023, and is provided by Google.
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Users can explore and analyze the dataset using the Earth Engine Code Editor for visualization and research purposes.
- Dataset Availability
- 2000-02-24T00:00:00Z–2023-02-10T00:00:00Z
- Dataset Provider
- Cadence
- 1 Day
- Tags
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) for details. This product is generated from the MODIS/006/MCD43A4 surface reflectance composites.
Bands
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
Code Editor (JavaScript)
var dataset = ee.ImageCollection('MODIS/MCD43A4_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');