VJ215A2H.002: LAI/FPAR 8-Day L4 Global 500m SIN Grid

Dataset Availability

2023-02-10T00:00:00Z–2026-10-24T00:00:00Z

Dataset Producer

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("NASA/VIIRS/002/VJ215A2H")

Cadence

8 Days

Tags

land nasa noaa surface vegetation-indices viirs

Description

The Visible Infrared Imaging Radiometer Suite (VIIRS) Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) Version 2 data product provides information about the vegetative canopy layer at 500 meter resolution (VJ215A2H). The VIIRS sensor is located onboard the NOAA-21 satellite. LAI is an index that quantifies the one-sided leaf area of a canopy, while FPAR is the fraction of incoming solar energy absorbed through photosynthesis at 400 to 700 nanometers. This product is intentionally designed after the Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) LAI/FPAR operational algorithm to promote the continuity of the Earth Observation System (EOS) mission.

Documentation:

• User's Guide

• Algorithm Theoretical Basis Document (ATBD)

• General Documentation

• Land Product Quality Assessment website

Bands

Bands

Pixel size: 500 meters (all bands)

Name	Units	Pixel Size	Description
Fpar		500 meters	Fraction of Photosynthetically Active Radiation.
FparExtra_QC		500 meters	Pass-through Quality Control (QC) for FPAR
Bitmask for FparExtra_QC Bits 0-1: Cloud detection and confidence 0: Confident clear 1: Probably clear 2: Probably cloudy 3: Confident cloudy Bit 2: Cloud shadow 0: No cloud shadow 1: Shadow Bit 3: Thin cirrus 0: No 1: Yes Bits 4-5: Aerosol quantity 0: Climatology 1: Low 2: Average 3: High Bit 6: Snow/Ice 0: No 1: Yes
FparLai_QC		500 meters	Quality for LAI and FPAR
Bitmask for FparLai_QC Bits 0-2: SCF_QC 0: Main (RT) method used, best result possible (no saturation) 1: Main (RT) method used with saturation. Good, very usable. 2: Main (RT) method failed due to bad geometry, empirical algorithm used 3: Main (RT) method failed due to problems other than geometry, empirical algorithm used 4: Pixel not produced at all, value couldn't be retrieved Bit 3: DeadDetector 0: Both red and NIR detectors are fine 1: At least one band has dead detector Bits 4-7: BiomeType 0: Water 1: Grasses/cereal crops 2: Shrubs 3: Broadleaf crops 4: Savanna 5: Evergreen broadleaf forest 6: Deciduous broadleaf forest 7: Evergreen needleleaf forest 8: Deciduous needleleaf forest 9: Non-vegetated 10: Urban 11: Unclassified 12: Filled Value
FparStdDev		500 meters	Standard deviation of FPAR
Lai	Area fraction	500 meters	Leaf Area Index
LaiStdDev	Area fraction	500 meters	Standard deviation for LAI

Image Properties

Image Properties

Name	Type	Description
num_tiles	INT	The number of source tiles that were mosaicked to create this image.

Terms of Use

Terms of Use

LP DAAC NASA data are freely accessible; however, when an author publishes these data or works based on the data, it is requested that the author cite the datasets within the text of the publication and include a reference to them in the reference list.

Citations

Citations:

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

DOIs

• https://doi.org/10.5067/VIIRS/VJ215A2H.002

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('NASA/VIIRS/002/VJ215A2H')
                  .filter(ee.Filter.date('2023-11-01', '2023-12-01'));

var visualization = {
  bands: ['Lai'],
  min: [0],
  max: [4],
  palette: [
    'a50026',
    'd73027',
    'f46d43',
    'fdae61',
    'fee08b',
    'ffffbf',
    'd9ef8b',
    'a6d96a',
    '66bd63',
    '1a9850',
    '006837',
  ]
};
Map.setCenter(41.2, 38.84, 3);
Map.addLayer(dataset, visualization, 'Leaf Area Index (LAI)');

Open in Code Editor

VJ215A2H.002: LAI/FPAR 8-Day L4 Global 500m SIN Grid

The Visible Infrared Imaging Radiometer Suite (VIIRS) Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) Version 2 data product provides information about the vegetative canopy layer at 500 meter resolution (VJ215A2H). The VIIRS sensor is located onboard the NOAA-21 satellite. LAI is an index that quantifies the …

NASA/VIIRS/002/VJ215A2H, land,nasa,noaa,surface,vegetation-indices,viirs

2023-02-10T00:00:00Z/2026-10-24T00:00:00Z

-90 -180 90 180

Google Earth Engine

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

• https://doi.org/10.5067/VIIRS/VJ215A2H.002
• https://doi.org/10.5067/VIIRS/VJ215A2H.002