MYD13A2.061 Aqua Vegetation Indices 16-Day Global 1km

MODIS/061/MYD13A2
Dataset Availability
2002-07-04T00:00:00Z–2024-11-24T00:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("MODIS/061/MYD13A2")
Cadence
16 Days
Tags
16-day aqua evi global modis nasa ndvi usgs vegetation
myd13a2

Description

The MYD13A2 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:

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
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:

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/061/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
The MYD13A2 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/MYD13A2, 16-day,aqua,evi,global,modis,nasa,ndvi,usgs,vegetation
2002-07-04T00:00:00Z/2024-11-24T00:00:00Z
Google Earth Engine