AI-generated Key Takeaways
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MOD13A3 V6.1 provides monthly vegetation indices (NDVI, EVI) at 1km resolution, derived from MOD13A2 using a weighted temporal average.
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This dataset is suitable for monitoring global vegetation conditions, land cover changes, and modeling biogeochemical processes.
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Data is available from February 2000 to November 2024 and is provided by NASA LP DAAC at the USGS EROS Center.
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The dataset includes quality indicators, surface reflectance bands, and view/solar geometry information.
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MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

- Dataset Availability
- 2000-02-01T00:00:00Z–2025-08-01T00:00:00Z
- Dataset Provider
- NASA LP DAAC at the USGS EROS Center
- Cadence
- 1 Month
- Tags
Description
The MOD13A3 V6.1 product data is provided monthly at 1 kilometer (km) spatial resolution. In generating this monthly product, the algorithm ingests all the MOD13A2 products that overlap the month and employs a weighted temporal average.
Vegetation indices are used for global monitoring of vegetation conditions and are used in products displaying land cover and land cover changes. These data may be used as input for modeling global biogeochemical and hydrologic processes as well as global and regional climate. Additional applications include characterizing land surface biophysical properties and processes, such as primary production and land cover conversion.
Documentation:
Bands
Pixel Size
1000 meters
Bands
Name | Units | Min | Max | Scale | Pixel Size | Wavelength | Description | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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NDVI |
-2000 | 10000 | 0.0001 | meters | None | Monthly NDVI average |
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EVI |
-2000 | 10000 | 0.0001 | meters | None | Monthly EVI average |
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DetailedQA |
meters | None | VI Quality indicators |
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sur_refl_b01 |
0 | 10000 | 0.0001 | meters | 620-670nm | Surface reflectance band 1 (red) |
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sur_refl_b02 |
0 | 10000 | 0.0001 | meters | 841-876nm | Surface reflectance band 2 (near-infrared) |
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sur_refl_b03 |
0 | 10000 | 0.0001 | meters | 459-479nm | Surface reflectance band 3 (blue) |
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sur_refl_b07 |
0 | 10000 | 0.0001 | meters | 2105-2155nm | Surface reflectance band 7 (mid-infrared) |
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ViewZenith |
deg | 0 | 18000 | 0.01 | meters | None | View zenith angle of VI Pixel |
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SolarZenith |
deg | 0 | 18000 | 0.01 | meters | None | Sun zenith angle of VI pixel |
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RelativeAzimuth |
deg | -18000 | 18000 | 0.01 | meters | None | Relative azimuth angle of VI pixel |
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SummaryQA |
meters | None | Quality reliability of VI pixel |
SummaryQA Class Table
Value | Color | Description |
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0 | None | Good Data: use with confidence |
1 | None | Marginal Data: useful, but look at other QA information |
2 | None | Snow/Ice: target covered with snow/ice |
3 | None | Cloudy: target not visible, covered with cloud |
Terms of Use
Terms of Use
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
Citations
Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('MODIS/061/MOD13A3') .filter(ee.Filter.date('2020-01-01', '2023-05-01')); var ndvi = dataset.select('NDVI'); var ndviVis = { min: 0, max: 9000, palette: [ 'ffffff', 'ce7e45', 'df923d', 'f1b555', 'fcd163', '99b718', '74a901', '66a000', '529400', '3e8601', '207401', '056201', '004c00', '023b01', '012e01', '011d01', '011301' ], }; Map.setCenter(6.746, 46.529, 2); Map.addLayer(ndvi, ndviVis, 'NDVI');