NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance, Version 4

AVHRR Surface Reflectance

browse graphicGlobal RGB image of daily AVHRR surface reflectance
This dataset contains gridded daily surface reflectance and brightness temperatures derived from the Advanced Very High Resolution Radiometer (AVHRR) sensors onboard seven NOAA polar orbiting satellites: NOAA-7, -9, -11, -14, -16, -17, and -18. Surface reflectance from AVHRR channels 1 and 2 (at 640 and 860 nm) are a NOAA Climate Data Record (CDR). The dataset spans from 1981 to 10 days from the present, and is processed from the AVHRR Global Area Coverage (GAC) Level 1b dataset. AVHRR GAC observations are packaged into data arrays with latitude and longitude dimensions of 3600 x 7200 covering the globe at 0.05 degree spatial resolution. The Version 4 Land Surface CDR products were produced by the NASA Goddard Space Flight Center (GSFC) and the University of Maryland. Changes for version 4 from version 3 include 1) added data from NOAA-16 and NOAA-17 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. This CDR is used as an input to other Land Surface CDR products including the Normalized Difference Vegetation Index (NDVI), Leaf Area Index (LAI) and the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR). The product was converted from HDF to netCDF-4 with CF metadata, and is accompanied by algorithm documentation, data flow diagram and source code for the NOAA CDR Program.
  • Cite as: Eric Vermote, Chris Justice, Ivan Csiszar, Jeff Eidenshink, Ranga Myneni, Frederic Baret, Ed Masuoka, Robert Wolfe, Martin Claverie and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance, Version 4. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5TM782M [access date].
Download Data
Distribution Formats
  • NetCDF (Version: 4)
    • File Specification: The NetCDF data files comply with the Climate and Forecast (CF) Metadata Conventions and the NetCDF Attribute Convention for Dataset Discovery (ACDD).
Distributor Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
1-828-271-4800
ncei.orders@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
Coverage Description
Time Period 1981-06-24 to Present (time interval: 1-day)
Spatial Bounding Box Coordinates
N: 90.0
S: -90.0
E: 180.0
W: -180.0
Spatial Coverage Map
General Documentation
Processing Documents
  • AVHRR Surface Reflectance Source Code
    • CDR Source Code (download)
      This source code is for reference only. The source code is provided to maintain transparency of the algorithm and processes used in creating the Climate Data Record (CDR). The source code is not intended to be portable to any computer system(s) beyond that of the original CDR producer's environment.
  • Flowcharts Vegetation CDR
  • Climate Algorithm Theoretical Basis Document (C-ATBD)
Associated Resources
  • Generating a long-term land data record from the AVHRR and MODIS Instruments
    • Conference proceeding published July 2007 by the IEEE
      Pedelty, J., Devadiga, S., Masuoka, E., Brown, M., Pinzon, J., Tucker, C., … Pinheiro, A. (2007). Generating a long-term land data record from the AVHRR and MODIS Instruments. 2007 IEEE International Geoscience and Remote Sensing Symposium. IEEE. https://doi.org/10.1109/igarss.2007.4422974
  • Other publications that cite this dataset
  • NOAA Climate Data Record (CDR) of Normalized Difference Vegetation Index (NDVI), Version 4
Publication Dates
  • publication: 2014-05-21
Edition Version 4
Data Presentation Form Digital image
Dataset Progress Status Ongoing - data is continually being updated
Data Update Frequency Daily
Purpose This dataset provides a high quality Climate Data Record (CDR) of AVHRR land surface reflectance for studying long-term climate trends and validating global climate models.
Use Limitations
  • Data for some days in the CDR series may be missing for one or more of the following reasons: 1) input GAC data was not available, 2) the data day was found to contain significant geolocation residual error, or 3) noisy input data.
  • The time variable in the data files has values that are too large by one (1) day. See the Technical Note.
  • See the Algorithm Theoretical Basis Document for a description of use limitations.
Dataset Citation
  • Cite as: Eric Vermote, Chris Justice, Ivan Csiszar, Jeff Eidenshink, Ranga Myneni, Frederic Baret, Ed Masuoka, Robert Wolfe, Martin Claverie and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance, Version 4. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5TM782M [access date].
Cited Authors
  • Vermote, Eric
    NASA/GSFC > Goddard Space Flight Center, NASA
  • Justice, Chris
    UMD > University of Maryland
  • Csiszar, Ivan A.
    DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce
  • Eidenshink, Jeff
    DOI/USGS/EROS > Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior
  • Myneni, Ranga B.
    BU > Boston University
  • Baret, Frederic
    FR/INRA > French National Institute for Agricultural Research
  • Masuoka, Edward
    NASA/GSFC > Goddard Space Flight Center, NASA
  • Wolfe, Robert E.
    NASA/GSFC > Goddard Space Flight Center, NASA
  • Claverie, Martin
    UMD > University of Maryland
  • NOAA CDR Program
Principal Investigators
  • Vermote, Eric
    NASA/GSFC > Goddard Space Flight Center, NASA
Collaborators
  • Justice, Chris
    UMD > University of Maryland
  • Csiszar, Ivan A.
    DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce
  • Eidenshink, Jeff
    DOI/USGS/EROS > Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior
  • Myneni, Ranga B.
    BU > Boston University
  • Baret, Frederic
    FR/INRA > French National Institute for Agricultural Research
  • Masuoka, Edward
    NASA/GSFC > Goddard Space Flight Center, NASA
  • Wolfe, Robert E.
    NASA/GSFC > Goddard Space Flight Center, NASA
  • Claverie, Martin
    UMD > University of Maryland
  • NOAA CDR Program
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Land Surface > Surface Radiative Properties > Reflectance
  • Earth Science > Spectral/Engineering > Infrared Wavelengths > Brightness Temperature
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • NASA/GSFC > Goddard Space Flight Center, NASA
  • UMD > University of Maryland
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • NOAA-7 > National Oceanic & Atmospheric Administration-7
  • NOAA-9 > National Oceanic & Atmospheric Administration-9
  • NOAA-11 > National Oceanic & Atmospheric Administration-11
  • NOAA-14 > National Oceanic & Atmospheric Administration-14
  • NOAA-16 > National Oceanic & Atmospheric Administration-16
  • NOAA-17 > National Oceanic & Atmospheric Administration-17
  • NOAA-18 > National Oceanic & Atmospheric Administration-18
  • NOAA-19 > National Oceanic & Atmospheric Administration-19
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • AVHRR > Advanced Very High Resolution Radiometer
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Geographic Region > Global Land
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • NOAA Climate Data Record (CDR) Program
  • NOAA OneStop Project
Use Constraints
  • Cite as: Eric Vermote, Chris Justice, Ivan Csiszar, Jeff Eidenshink, Ranga Myneni, Frederic Baret, Ed Masuoka, Robert Wolfe, Martin Claverie and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance, Version 4. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5TM782M [access date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Fees
  • In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2018-11-05
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