AI-generated Key Takeaways
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The MODIS/MCD43A4_006_NDSI dataset provides daily, global Normalized Difference Snow Index (NDSI) values, derived from MODIS surface reflectance data.
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NDSI helps identify snow cover by comparing reflectance in the visible and mid-infrared spectrum, ranging from -1.0 to 1.0.
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This dataset is freely available for use, sale, and redistribution with no restrictions.
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The data is provided by Google Earth Engine and covers the period from February 24, 2000, to February 10, 2023.
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Users can explore and analyze the dataset using Earth Engine's platform, which is free for research, education, and non-profit purposes.

- Dataset Availability
- 2000-02-24T00:00:00Z–2023-02-10T00:00:00Z
- Dataset Provider
- Cadence
- 1 Day
- Tags
Description
The Normalized Difference Snow Index is used to identify snow, based on its characteristically higher reflectance in the visible portion of the spectrum compared to the mid-IR. NDSI is computed using the Green and Mid-IR bands, and has a range of -1.0 to 1.0. See Riggs et al. (1994) for details. This product is generated from the MODIS/006/MCD43A4 surface reflectance composites.
Bands
Bands
Name | Pixel Size | Description |
---|---|---|
NDSI |
463.313 meters | Normalized Difference Snow 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_NDSI') .filter(ee.Filter.date('2018-04-01', '2018-06-01')); var colorized = dataset.select('NDSI'); var colorizedVis = { palette: ['000088', '0000ff', '8888ff', 'ffffff'], }; Map.setCenter(-7.03125, 31.0529339857, 2); Map.addLayer(colorized, colorizedVis, 'Colorized');