MYD13C1.061: Aqua Vegetation Indices 16-Day L3 Global 0.05 Deg CMG

MODIS/061/MYD13C1
Dataset Availability
2002-07-04T00:00:00Z–2024-11-24T00:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("MODIS/061/MYD13C1")
Cadence
16 Days
Tags
16-day aqua global nasa usgs vegetation

Description

The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Indices 16-Day (MYD13C1) Version 6.1 product provides a Vegetation Index (VI) value at a per pixel basis. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI), which maintains continuity with the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The second vegetation layer is the Enhanced Vegetation Index (EVI), which has improved sensitivity over high biomass regions. The Climate Modeling Grid (CMG) consists of 3,600 rows and 7,200 columns of 5,600 meter (m) pixels. Global MYD13C1 data are cloud-free spatial composites of the gridded 16-day 1 kilometer MYD13A2 data, and are provided as a Level 3 product projected on a 0.05 degree (5,600 m) geographic CMG. The MYD13C1 has data fields for NDVI, EVI, VI QA, reflectance data, angular information, and spatial statistics such as mean, standard deviation, and number of used input pixels at the 0.05 degree CMG resolution.

Bands

Resolution
5600 meters

Bands

Name Units Min Max Wavelength Description
NDVI -0.2 1

16-day NDVI average
EVI -0.2 1

16-day EVI average
DetailedQA

VI Quality indicators
sur_refl_b01 0 1 620-670nm

Surface reflectance band 1 (red)
sur_refl_b02 0 1 841-876nm

Surface reflectance band 2 (near-infrared)
sur_refl_b03 0 1 459-479nm

Surface reflectance band 3 (blue)
sur_refl_b07 0 1 2105-2155nm

Surface reflectance band 7 (mid-infrared)
SolarZenith deg 0 180

View zenith angle of VI Pixel
NDVIStdDev -0.2 1

Standard deviation computed from input NDVI pixels
EVIStdDev -0.2 1

Standard deviation computed from input NDVI pixels
Pixel_1km count 0 36

Number of 1 km input pixels used
Pixel_30deg_1km count 0 36

Number of 1 km input pixels used with VZ angle less than + or - 30 degs
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/MYD13C1')
                  .filter(ee.Filter.date('2023-01-01', '2023-05-01'));
var ndvi = dataset.select('NDVI');
var ndviVis = {
  min: 0,
  max: .9,
  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 Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Indices 16-Day (MYD13C1) Version 6.1 product provides a Vegetation Index (VI) value at a per pixel basis. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI), which maintains continuity with the existing National Oceanic and Atmospheric …
MODIS/061/MYD13C1, 16-day,aqua,global,nasa,usgs,vegetation
2002-07-04T00:00:00Z/2024-11-24T00:00:00Z
Google Earth Engine