NOAA's Outgoing Longwave Radiation-Daily Climate Data Record (OLR-Daily CDR):
    PSD Interpolated Version new!
    
    Brief Description:
    
    * Gridded daily 1x1 OLR CDR data from NCDC interpolated to -90 to 90.
    More Details...
    
    Temporal Coverage:
    
    * Daily values for 1979/01/01 - 12/31/2012.
    * Monthly values for 1979/01/01 - 12/01/2012.
    * Long Term means for daily,monthly values for 1981-2010.
    
    Spatial Coverage:
    
    * 1.0 degree latitude x 1.0 degree longitude global grid (360x181)
    * 90.0N - 90.0S 0.5E - 359.5E
    
    [olrcdr.png]
    
    Levels:
    
    * N/A
    
    Update Schedule:
    
    * Static.
    
    Download/Plot Data:
    
    Variable Statistic Level Units Download File Create Plot/Subset
    OLR Daily Mean Top of Atmosphere W/m^2 olr.day.mean.nc plot
    ' ' Daily Long Term Mean Top of Atmosphere W/m^2 olr.day.ltm.nc plot
    OLR Monthly Mean Top of Atmosphere W/m^2 olr.mon.mean.nc plot
    ' ' Monthly Long Term Mean Top of Atmosphere W/m^2 olr.mon.ltm.nc plot
    
    Analysis/Plotting Tools:
    
    * Daily composites
    * Time-section plots (Hovmoller)
    
    Usage Restrictions:
    
    * NCDC use agreement
    
    Detailed Description:
    
    * PSD has generated a single netCDF file containing the NCDC CDR OLR
    dataset of daily values. The data has been interpolated so that it
    is symmetric about the equator (latitudinal grid resolution is 181
    from the original 180; longitude resolution has not been changed).
    The original NCDC product contains the 1-degree by 1-degree daily
    mean outgoing longwave radiation flux at the top of the atmosphere
    derived from HIRS radiance observations onboard NOAA TIROS-N series
    and MetOp satellites. The OLR retrieval uses multispectral
    regression models (Ellingson et al., 1989, Lee, 2014). The CDR
    processing includes HIRS radiance calibration, inter-satellite HIRS
    OLR calibration, normalization of geostationary-based OLR retrieval
    to HIRS, and grid-based 7-day boxcar temporal integration assisted
    with Imager-based OLR derived from Gridsat CDR data (Lee, 2014).
    
    Caveats:
    
    * None
    
    Related File Naming & Structure Information:
    
    File Names:
    * var.time.stat.nc   (In directory: /Datasets/olrcdr/)
    
    OpenDap File Names:
    * http://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/olrcdr/olr.time
    .stat.nc
    
    Dataset Format and Size:
    * PSD standard NetCDF4 2.1G file for daily file.
    * PSD standard NetCDF3 95M file for daily ltm file.
    * PSD standard NetCDF3 106M file for monthly file.
    * PSD standard NetCDF3 4.6M file for monthly ltm file.
    
    Missing Data:
    * Missing data is flagged with a value of -9.96921e+36.
    
    Citation:
    
    * NCDC use agreement
    * Lee, H.-T., 2014: Climate Algorithm Theoretical Basis Document
    (C-ATBD): Outgoing Longwave Radiation (OLR) - Daily. NOAA's Climate
    Data Record (CDR) Program, CDRP-ATBD-0526, 46 pp.
    http://www1.ncdc.noaa.gov/pub/data/sds/cdr/CDRs/Outgoing%20Longwave
    %20Radiation%20-%20Daily/AlgorithmDescription.pdf.
    * Please note: If you acquire Interpolated OLR data products from
    PSD, we ask that you acknowledge us in your use of the data. This
    may be done by including text such as Interpolated OLR data
    provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from
    their Web site at http://www.esrl.noaa.gov/psd/ in any documents or
    publications using these data. We would also appreciate receiving a
    copy of the relevant publications. This will help PSD to justify
    keeping the Interpolated OLR data set freely available online in
    the future. Thank you!
    
    References:
    
    * Lee, H.-T., 2014: Climate Algorithm Theoretical Basis Document
    (C-ATBD): Outgoing Longwave Radiation (OLR) - Daily. NOAA's Climate
    Data Record (CDR) Program, CDRP-ATBD-0526, 46 pp.
    http://www1.ncdc.noaa.gov/pub/data/sds/cdr/CDRs/Outgoing%20Longwave
    %20Radiation%20-%20Daily/AlgorithmDescription.pdf.
    * Lee, H.-T., C. J. Schreck, K. R. Knapp, 2014: Generation of the
    Daily OLR Climate Data Record. 2014 EUMETSAT Meteorological
    Satellite Conference, 22-26 September 2014, Geneva, Switzerland.
    
    Original Source:
    
    * NCDC:
    http://www.ncdc.noaa.gov/news/new-outgoing-longwave-radiation-clima
    te-data-record (daily data stored as annual files)
    * NCDC: Overview.
    * NCDC: Operational Climate Data Records (CDRs)
    
    Contact:
    
    * Physical Sciences Division: Data Management
    NOAA/ESRL/PSD
    325 Broadway
    Boulder, CO 80305-3328
    esrl.psd.data@noaa.gov
    
    U.S. Department of Commerce | National Oceanic and Atmospheric
    Administration
    Earth System Research Laboratory | Physical Sciences Division
    http://www.esrl.noaa.gov/psd/data/gridded/data.olrcdr.interp.html