MOD13A3.061 Vegetation Indices Monthly L3 Global 1 km SIN Grid

Dataset Availability

2000-02-01T00:00:00Z–2024-11-01T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/061/MOD13A3")

Cadence

1 Month

Tags

evi global modis monthly nasa ndvi terra usgs vegetation

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:

• User's Guide

• Algorithm Theoretical Basis Document (ATBD)

• General Documentation

Bands

Resolution
1000 meters

Bands

Name	Units	Min	Max	Scale	Wavelength	Description
NDVI		-2000	10000	0.0001		Monthly NDVI average
EVI		-2000	10000	0.0001		Monthly EVI average
DetailedQA						VI Quality indicators
Bitmask for DetailedQA Bits 0-1: VI quality (MODLAND QA Bits) 0: VI produced with good quality 1: VI produced, but check other QA 2: Pixel produced, but most probably cloudy 3: Pixel not produced due to other reasons than clouds Bits 2-5: VI usefulness 0: Highest quality 1: Lower quality 2: Decreasing quality 4: Decreasing quality 8: Decreasing quality 9: Decreasing quality 10: Decreasing quality 12: Lowest quality 13: Quality so low that it is not useful 14: L1B data faulty 15: Not useful for any other reason/not processed Bits 6-7: Aerosol Quantity 0: Climatology 1: Low 2: Intermediate 3: High Bit 8: Adjacent cloud detected 0: No 1: Yes Bit 9: Atmosphere BRDF correction 0: No 1: Yes Bit 10: Mixed Clouds 0: No 1: Yes Bits 11-13: Land/water mask 0: Shallow ocean 1: Land (nothing else but land) 2: Ocean coastlines and lake shorelines 3: Shallow inland water 4: Ephemeral water 5: Deep inland water 6: Moderate or continental ocean 7: Deep ocean Bit 14: Possible snow/ice 0: No 1: Yes Bit 15: Possible shadow 0: No 1: Yes
sur_refl_b01		0	10000	0.0001	620-670nm	Surface reflectance band 1 (red)
sur_refl_b02		0	10000	0.0001	841-876nm	Surface reflectance band 2 (near-infrared)
sur_refl_b03		0	10000	0.0001	459-479nm	Surface reflectance band 3 (blue)
sur_refl_b07		0	10000	0.0001	2105-2155nm	Surface reflectance band 7 (mid-infrared)
ViewZenith	deg	0	18000	0.01		View zenith angle of VI Pixel
SolarZenith	deg	0	18000	0.01		Sun zenith angle of VI pixel
RelativeAzimuth	deg	-18000	18000	0.01		Relative azimuth angle of VI pixel
SummaryQA						Quality reliability of VI pixel

SummaryQA Class Table

Value	Color	Description
0		Good Data: use with confidence
1		Marginal Data: useful, but look at other QA information
2		Snow/Ice: target covered with snow/ice
3		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

Citations:

• Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.

DOIs

• https://doi.org/10.5067/MODIS/MOD13A3.061

Explore with Earth Engine

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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');

Open in Code Editor

MOD13A3.061 Vegetation Indices Monthly L3 Global 1 km SIN Grid

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 …

MODIS/061/MOD13A3, evi,global,modis,monthly,nasa,ndvi,terra,usgs,vegetation

2000-02-01T00:00:00Z/2024-11-01T00:00:00Z

Google Earth Engine

https://developers.google.com/earth-engine/datasets

• https://doi.org/10.5067/MODIS/MOD13A3.061