NOAA Climate Data Record (CDR) of Gridded Satellite Data from ISCCP B1 (GridSat-B1) Infrared Channel Brightness Temperature, Version 1 (Version Superseded)
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dateStamp: 2023-09-14
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metadataStandardVersion: ISO 19115-2:2009(E)
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title: NOAA Climate Data Record (CDR) of Gridded Satellite Data from ISCCP B1 (GridSat-B1) Infrared Channel Brightness Temperature, Version 1 (Version Superseded)
alternateTitle: Geostationary IR Channel Brightness Temperature - GridSat B1
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date: 2010-09-03
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individualName: Knapp, Kenneth R.
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abstract: *Note: This dataset version has been superseded by a newer version.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.* The Intersatellite Calibrated Gridded Satellite Data from International Satellite Cloud Climatology Project (ISCCP) B1 data (or GridSat-B1) provides a uniform set of quality controlled observations for the infrared (IR) window channel at 11 microns for a 30 year record beginning in 1980. The ISCCP B1 data are quality controlled, calibrated, remapped and merged to provide nearly Global coverage of equal-angle uniform observations of IR brightness temperatures every 3 hours. Temporal normalization is performed via inter-satellite calibration against High Resolution Infrared Radiation Sounder (HIRS) channel 12 data during the ISCCP B1 period of record. For each 3-hour time segment (from 00 to 23 UTC), the IR channel from each satellite product is mapped to an equal-angle grid using nearest-neighbor sampling. Since the ISCCP B1 spatial resolution is approximately 8km, the resolution of the equal area grid is 0.07 degrees Latitude (approximately 8km at the Equator). The data span the Globe in Longitude and range from 70 degrees South to 70 degrees North Latitude. Satellites are merged by selecting the nadir-most observations for each grid point. Areas of satellite overlap are retained by storing data in layers. Channel primary layers (nadir-most observation) are written as 2-dimensional grids in the netCDF file, which facilitates processing of multiple files (e.g., aggregation of multiple times, etc.). Subsequent layers are written as either 2D grids or staggered arrays, which are 1-dimensional arrays that only record data when present. The fundamental Climate Data Record (CDR) is stored using netCDF and CF conventions to facilitate data usage with a wide range of processing software.
purpose: These data can be applied to studies of tropical cyclones, the Intertropical Convergence Zone (ITCZ), global and regional precipitation monitoring, diurnal variation and outgoing longwave radiation. The data are intended to facilitate use of Global infrared measurements from geostationary satellites by non-satellite experts and to help facilitate large-scale processing via tools designed to process CF-compliant netCDF files.
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deliveryPoint: 151 Patton Avenue
deliveryPoint: Veach-Baley Federal Building, Room 447
city: Asheville
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postalCode: 28801-5001
country: USA
electronicMailAddress: gridsat_b1_contacts@noaa.gov
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keyword: Earth Science > Spectral/Engineering > Infrared Wavelengths > Brightness Temperature
keyword: Earth Science > Atmosphere > Atmospheric Radiation > Longwave Radiation
keyword: Earth Science > Atmosphere > Atmospheric Radiation > Reflectance
keyword: Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
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keyword: Atmospheric - Upper-air - Upper-air Water Vapour
keyword: Atmospheric - Upper-air - Earth Radiation Budget
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useLimitation: *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.*
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useLimitation: See the Algorithm Theoretical Basis Document for a description of use limitations.
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otherConstraints: Cite as: Knapp, Kenneth R.; NOAA CDR Program; (2010): NOAA Climate Data Record (CDR) of Gridded Satellite Data from ISCCP B1 (GridSat-B1) Infrared Channel Brightness Temperature, Version 1. [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
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otherConstraints: Publications using this dataset should also reference the following journal article: Knapp, K. R., S. Ansari, C. L. Bain, M. A. Bourassa, M. J. Dickinson, C. Funk, C. N. Helms, C. C. Hennon, C. D. Holmes, G. J. Huffman, J. P. Kossin, H.-T. Lee, A. Loew, and G. Magnusdottir, 2011: Globally gridded satellite (GridSat) observations for climate studies. Bulletin of the American Meteorological Society, 92, 893-907. doi:10.1175/2011BAMS3039.1
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otherConstraints: 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.
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otherConstraints: 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.
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beginPosition: 1980-01-01
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maintenanceNote: Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.
