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

AI-generated Key Takeaways

The MOD13A3 V6.1 product provides monthly vegetation index data at 1 kilometer spatial resolution from 2000 to 2025.
This dataset is used for global monitoring of vegetation conditions and can be input for modeling biogeochemical, hydrologic, and climate processes.
The dataset includes bands for NDVI, EVI, surface reflectance, and various quality assurance indicators.
MODIS data from LP DAAC have no restrictions on use, sale, or redistribution.

Dataset Availability: 2000-02-01T00:00:00Z–2025-10-01T00:00:00Z
Dataset Provider: NASA LP DAAC at the USGS EROS Center

Cadence: 1 Month
Tags: evi global modis monthly nasa ndvi terra usgs vegetation vegetation-indices

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:

Bands

Pixel Size 1000 meters

Bands

Name

Units

Min

Max

Scale

Pixel Size

Wavelength

Description

NDVI

-2000

10000

0.0001

meters

None

Monthly NDVI average

EVI

-2000

10000

0.0001

meters

None

Monthly 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

10000

0.0001

meters

620-670nm

Surface reflectance band 1 (red)

sur_refl_b02

10000

0.0001

meters

841-876nm

Surface reflectance band 2 (near-infrared)

sur_refl_b03

10000

0.0001

meters

459-479nm

Surface reflectance band 3 (blue)

sur_refl_b07

10000

0.0001

meters

2105-2155nm

Surface reflectance band 7 (mid-infrared)

ViewZenith

deg

18000

0.01

meters

None

View zenith angle of VI Pixel

SolarZenith

deg

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

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

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

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

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

2000-02-01T00:00:00Z/2025-10-01T00:00:00Z

-90 -180 90 180

Google Earth Engine

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

MOD13A3.061 Vegetation Indices Monthly L3 Global 1 km SIN Grid Stay organized with collections Save and categorize content based on your preferences.

AI-generated Key Takeaways

Description

Bands

Terms of Use

Citations

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

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