MYD13A2.006 Aqua Vegetation Indices 16-Day Global 1km [deprecated]

Caution: This dataset has been superseded by MODIS/061/MYD13A2.

Dataset Availability

2002-07-04T00:00:00Z–2023-02-10T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/006/MYD13A2")

Cadence

16 Days

Tags

16-day

aqua

evi

global

modis

myd13a2

nasa

ndvi

usgs

vegetation

vegetation-indices

Description

The MYD13A2 V6 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

Pixel Size
1000 meters

Bands

Name	Units	Min	Max	Scale	Pixel Size	Wavelength	Description
NDVI		-2000	10000	0.0001	meters	None	16-day NDVI average
EVI		-2000	10000	0.0001	meters	None	16-day EVI average
DetailedQA					meters	None	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	meters	620-670nm	Surface reflectance band 1 (red)
sur_refl_b02		0	10000	0.0001	meters	841-876nm	Surface reflectance band 2 (near-infrared)
sur_refl_b03		0	10000	0.0001	meters	459-479nm	Surface reflectance band 3 (blue)
sur_refl_b07		0	10000	0.0001	meters	2105-2155nm	Surface reflectance band 7 (mid-infrared)
ViewZenith	deg	0	18000	0.01	meters	None	View zenith angle of VI Pixel
SolarZenith	deg	0	18000	0.01	meters	None	Sun zenith angle of VI pixel
RelativeAzimuth	deg	-18000	18000	0.01	meters	None	Relative azimuth angle of VI pixel
DayOfYear	Julian Day	1	366		meters	None	Day of year VI pixel
SummaryQA					meters	None	Quality reliability of VI pixel

SummaryQA Class Table

Value	Color	Description
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

Citations:

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

DOIs

• https://doi.org/10.5067/MODIS/MYD13A2.006

Explore with Earth Engine

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/006/MYD13A2')
                  .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

MYD13A2.006 Aqua Vegetation Indices 16-Day Global 1km [deprecated]

The MYD13A2 V6 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/006/MYD13A2, 16-day,aqua,evi,global,modis,nasa,ndvi,usgs,vegetation,vegetation-indices

2002-07-04T00:00:00Z/2023-02-10T00:00:00Z

-90 -180 90 180

Google Earth Engine

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

• https://doi.org/10.5067/MODIS/MYD13A2.006
• https://doi.org/10.5067/MODIS/MYD13A2.006