MOD13Q1.006 Terra Vegetation Indices 16-Day Global 250m [deprecated]

AI-generated Key Takeaways

This dataset has been superseded by MODIS/061/MOD13Q1.
The dataset provides Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) values at a per-pixel basis.
The data is available from 2000-02-18 to 2023-02-02 with a 16-day cadence.
MODIS data acquired through the LP DAAC have no restrictions on subsequent use.

Dataset Availability: 2000-02-18T00:00:00Z–2023-02-02T00:00:00Z
Dataset Provider: NASA LP DAAC at the USGS EROS Center

Cadence: 16 Days
Tags: 16-day

evi

global

mod13q1

modis

nasa

ndvi

terra

usgs

vegetation

vegetation-indices

Description

The MOD13Q1 V6 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 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 second vegetation layer is the Enhanced Vegetation Index (EVI) that minimizes canopy background variations and maintains sensitivity over dense vegetation conditions. The EVI also uses the blue band to remove residual atmosphere contamination caused by smoke and sub-pixel thin cloud clouds. The MODIS NDVI and EVI products are computed from atmospherically corrected bi-directional surface reflectances that have been masked for water, clouds, heavy aerosols, and cloud shadows.

Documentation:

Bands

Pixel Size 250 meters

Bands

Name

Units

Min

Max

Scale

Pixel Size

Wavelength

Description

NDVI

-2000

10000

0.0001

meters

None

Normalized Difference Vegetation Index

EVI

-2000

10000

0.0001

meters

None

Enhanced Vegetation Index

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

645nm

Red surface reflectance

sur_refl_b02

10000

0.0001

meters

858nm

NIR surface reflectance

sur_refl_b03

10000

0.0001

meters

469nm

Blue surface reflectance

sur_refl_b07

10000

0.0001

meters

2130nm/2105 - 2155nm

MIR surface reflectance

ViewZenith

deg

18000

0.01

meters

None

View zenith angle

SolarZenith

deg

18000

0.01

meters

None

Solar zenith angle

RelativeAzimuth

deg

-18000

18000

0.01

meters

None

Relative azimuth angle

DayOfYear

366

meters

None

Julian day of year

SummaryQA

meters

None

Quality reliability of VI pixel

Bitmask for SummaryQA

Bits 0-1: VI quality (MODLAND QA Bits)
- 0: Good data, use with confidence
- 1: Marginal data, useful but look at detailed QA for more information
- 2: Pixel covered with snow/ice
- 3: Pixel is cloudy

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/MOD13Q1.006

Explore with Earth Engine

Code Editor (JavaScript)

 var 
  
 dataset 
  
 = 
  
 ee 
 . 
 ImageCollection 
 ( 
 'MODIS/006/MOD13Q1' 
 ) 
  
 . 
 filter 
 ( 
 ee 
 . 
 Filter 
 . 
 date 
 ( 
 '2018-01-01' 
 , 
  
 '2018-05-01' 
 )); 
 var 
  
 ndvi 
  
 = 
  
 dataset 
 . 
 select 
 ( 
 'NDVI' 
 ); 
 var 
  
 ndviVis 
  
 = 
  
 { 
  
 min 
 : 
  
 0 
 , 
  
 max 
 : 
  
 8000 
 , 
  
 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

MOD13Q1.006 Terra Vegetation Indices 16-Day Global 250m [deprecated]

MODIS/006/MOD13Q1, 16-day,evi,global,modis,nasa,ndvi,terra,usgs,vegetation,vegetation-indices

2000-02-18T00:00:00Z/2023-02-02T00:00:00Z

-90 -180 90 180

Google Earth Engine

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

MOD13Q1.006 Terra Vegetation Indices 16-Day Global 250m [deprecated] 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)

MOD13Q1.006 Terra Vegetation Indices 16-Day Global 250m [deprecated]