MOD13A2.061 Terra Vegetation Indices 16-Day Global 1km

Dataset Availability

2000-02-18T00:00:00Z–2024-11-16T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/061/MOD13A2")

Cadence

16 Days

Tags

16-day evi global modis nasa ndvi terra usgs vegetation

mod13a2

Description

The MOD13A2 V6.1 product provides two Vegetation Indices (VI): the Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI). The NDVI is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The EVI has improved sensitivity over high biomass regions.

The algorithm for this product chooses the best available pixel value from all the acquisitions from the 16-day period. The criteria used are low clouds, low view angle, and the highest NDVI/EVI value.

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		16-day NDVI average
EVI		-2000	10000	0.0001		16-day 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
DayOfYear	Julian Day	1	366			Day of year 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/MOD13A2.061

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/061/MOD13A2')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
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

MOD13A2.061 Terra Vegetation Indices 16-Day Global 1km

The MOD13A2 V6.1 product provides two Vegetation Indices (VI): the Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI). The NDVI is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The EVI has improved sensitivity …

MODIS/061/MOD13A2, 16-day,evi,global,modis,nasa,ndvi,terra,usgs,vegetation

2000-02-18T00:00:00Z/2024-11-16T00:00:00Z

Google Earth Engine

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

• https://doi.org/10.5067/MODIS/MOD13A2.061