NOAA Climate Data Record (CDR) of Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Version 4 (Version Superseded)
Leaf Area Index and FAPAR
*Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.* This dataset contains gridded daily Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) derived from the NOAA Climate Data Record (CDR) of Advanced Very High Resolution Radiometer (AVHRR) Surface Reflectance. The data record spans from 1981 to 10 days before the present using data from eight NOAA polar orbiting satellites: NOAA-7, -9, -11, -14, -16, -17, -18 and -19. The data are projected on a 0.05 degree x 0.05 degree global grid. This dataset is one of the Land Surface CDR products produced by the NASA Goddard Space Flight Center (GSFC) and the University of Maryland (UMD). Improvements made for Version 4 include 1) additional data from NOAA satellites extending the time period, 2) improved geolocation accuracy from use of OLE instead of TLE, 3) center of the grid is used as the reference, and 4) data value of a grid cell is computed as an average of available good observations. The dataset is in the netCDF-4 file format following ACDD and CF Conventions. The dataset is accompanied by algorithm documentation, data flow diagram and source code for the NOAA CDR Program.
Dataset Citation
- Cite as: Claverie, Martin; Vermote, Eric; NOAA CDR Program. (2014): NOAA Climate Data Record (CDR) of Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Version 4. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V5M043BX. Accessed [date].
Dataset Identifiers
- doi:10.7289/V5M043BX
- NCEI DSI 3669_01
- gov.noaa.ncdc:C00898
- gov.nasa.gsfc:AVH15C1
ISO 19115-2 Metadata
gov.noaa.ncdc:C00898
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | NOAA Climate Data Record Program Office DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 1-828-271-4800 land_sfc_bundle_contacts@noaa.gov |
Time Period | 1981-06-24 to 2019-07-11 (time interval: 1-day) |
Spatial Bounding Box Coordinates |
West: -180.0
East: 180.0
South: -90.0
North: 90.0
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Edition | Version 4.0 |
Data Presentation Form | Digital image |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility Superseded - replaced by new |
Data Update Frequency | Not planned |
Purpose | This dataset provides scientific researchers a high quality Climate Data Record (CDR) of Leaf Area Index (LAI) and the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) for detecting drought-stressed regions, forecasting agricultural yields, and forestry and crop management. LAI and FAPAR, two biophysical variables, characterize the canopy and photosynthetic activity of plants. The one-sided green leaf area per unit ground surface area describes the LAI data set. The fraction of the incoming solar radiation in the Photosynthetically Active Radiation spectral region that is absorbed by the plants defines the FAPAR data set. The LAI/FAPAR CDR produces a daily product on a 0.05 degree by 0.05 degree grid from 1981 to present derived from Advanced Very High Resolution Radiometer (AVHRR) sensors. |
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Last Modified: 2023-09-18
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov