MOD13Q1.005 Vegetation Indices 16-Day Global 250m [deprecated]

  • This dataset, MOD13AQ1, has been superseded by MODIS/061/MOD13Q1.

  • The dataset provides Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) products.

  • It includes layers for NDVI, EVI, Quality Assurance data, surface reflectances, and various angles.

  • The dataset is available from 2000-02-18 to 2017-03-06 and has a 16-day cadence.

  • MODIS data acquired through the LP DAAC have no restrictions on subsequent use.
MODIS/MOD13Q1
Dataset Availability
2000-02-18T00:00:00Z–2017-03-06T00:00:00Z
Dataset Producer
Earth Engine Snippet
ee.ImageCollection("MODIS/MOD13Q1")
Cadence
16 Days
Tags
16-day
evi
global
mod13q1
modis
ndvi
terra
vegetation
vegetation-indices

Description

The MODIS Normalized Difference Vegetation Index (NDVI) complements NOAA's Advanced Very High Resolution Radiometer (AVHRR) NDVI products and provides continuity for time series historical applications. MODIS also includes a new 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.

MOD13AQ1 is comprised of the following layers:

  • NDVI: Normalized Difference Vegetation Index, Scale 0.0001
  • EVI: Enhanced Vegetation Index, Scale 0.0001
  • DetailedQA: VI Quality, see MOD13Q1 VI Quality
  • sur_refl_b01: Red surface reflectance, scale 0.0001
  • sur_refl_b02: NIR surface reflectance, scale 0.0001
  • sur_refl_b03: Blue surface reflectance, scale 0.0001
  • sur_refl_b07: MIR surface reflectance, scale 0.0001
  • ViewZenith: View zenith angle, scale 0.01
  • SolarZenith: Solar zenith angle, scale 0.01
  • RelativeAzimuth: Relative azimuth angle, scale 0.1
  • DayOfYear: Julian day of year
  • SummaryQA: Pixel reliability summary QA
    • -1 Fill/No data: Not processed
    • 0 Good data: Use with confidence
    • 1 Marginal data: Useful but look at detailed QA for more information
    • 2 Snow/ice: Pixel covered with snow/ice
    • 3: Cloudy: Pixel is cloudy

MOD13Q1 IV Quality

  • Bits 0-1: MODLAND_QA
    • 00 (0): VI produced, good quality
    • 01 (1): VI produced, check other QA
    • 10 (2): Pixel produced, probably cloudy
    • 11 (3): Pixel not produced due to other reason (not clouds)
  • Bits 2-5: VI Usefulness
    • 0000 (0): Highest quality
    • 0001 (1): Lower quality
    • 0010 (2): Decreasing quality
    • 0100 (4): Decreasing quality
    • 1000 (8): Decreasing quality
    • 1001 (9): Decreasing quality
    • 1010 (10): Decreasing quality
    • 1100 (12): Lowest quality
    • 1101 (13): Quality so low that it is not useful
    • 1110 (14): L1B data faulty
    • 1111 (15): Not useful for any other reason/not processed
  • Bits 6-7: Aerosol quantity
    • 00 (0): Climatology
    • 01 (1): Low
    • 10 (2): Average
    • 11 (3): High
  • Bit 8: Adjacent cloud detected
    • 0: No
    • 1: Yes
  • Bit 9: Atmosphere BRDF correction performed
    • 0: No
    • 1: Yes
  • Bit 10: Mixed Clouds
    • 0: No
    • 1: Yes
  • Bits 11-13: Land/Water flag
    • 000 (0): Shallow ocean
    • 001 (1): Land
    • 010 (2): Ocean coastlines and lake shorelines
    • 011 (3): Shallow inland water
    • 100 (4): Ephemeral water
    • 101 (5): Deep inland water
    • 110 (6): Moderate or continental ocean
    • 111 (7): Deep ocean
  • Bit 14: Possible snow/ice
    • 0: No
    • 1: Yes
  • Bit 15: Possible shadow
    • 0: No
    • 1: Yes

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

Bands

Bands

Pixel size: 250 meters (all bands)

Name Units Min Max Scale Pixel Size Wavelength Description
NDVI -2000 10000 0.0001 250 meters None

Normalized Difference Vegetation Index
EVI -2000 10000 0.0001 250 meters None

Enhanced Vegetation Index
DetailedQA 250 meters None

VI quality indicators
sur_refl_b01 0 10000 0.0001 250 meters 645nm

Red surface reflectance
sur_refl_b02 0 10000 0.0001 250 meters 858nm

NIR surface reflectance
sur_refl_b03 0 10000 0.0001 250 meters 469nm

Blue surface reflectance
sur_refl_b07 0 10000 0.0001 250 meters 2130nm/2105 - 2155nm

MIR surface reflectance
ViewZenith deg 0 18000 0.01 250 meters None

View zenith angle
SolarZenith deg 0 18000 0.01 250 meters None

Solar zenith angle
RelativeAzimuth deg -18000 18000 0.01 250 meters None

Relative azimuth angle
DayOfYear 1 366 250 meters None

Julian day of year
SummaryQA 250 meters None

Quality reliability of VI pixel

Terms of Use

Terms of Use

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

The MODIS Normalized Difference Vegetation Index (NDVI) complements NOAA's Advanced Very High Resolution Radiometer (AVHRR) NDVI products and provides continuity for time series historical applications. MODIS also includes a new Enhanced Vegetation Index (EVI) that minimizes canopy background variations and maintains sensitivity over dense vegetation conditions. The EVI also uses …
MODIS/MOD13Q1, 16-day,evi,global,modis,ndvi,terra,vegetation,vegetation-indices
2000-02-18T00:00:00Z/2017-03-06T00:00:00Z
-90 -180 90 180
Google Earth Engine