BASE Temperature Data Record (TDR) from the SSM/I and SSMIS Sensors, CSU Version 1
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dateStamp: 2023-06-23
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title: BASE Temperature Data Record (TDR) from the SSM/I and SSMIS Sensors, CSU Version 1
date: (CI_Date)
date: 2013-08-22
dateType: (CI_DateTypeCode) publication
edition: Version 1
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code: gov.noaa.ncdc:C00788
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organisationName: COLOSTATE/ATMOS > Department of Atmospheric Sciences, Colorado State University
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linkage: http://rain.atmos.colostate.edu/FCDR/
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abstract: The BASE Temperature Data Record (TDR) dataset from Colorado State University (CSU) is a collection of the raw unprocessed antenna temperature data that has been written into single orbit granules and reformatted into netCDF-4. The temperature data are from the Special Sensor Microwave Imager (SSM/I) and Special Sensor Microwave Imager Sounder (SSMIS) series of passive microwave radiometers carried onboard the Defense Meteorological Satellite Program (DMSP) satellites. This dataset encompasses data from a total of nine satellites including the SSM/I sensors on board DMSP satellites F08, F10, F11, F13, F14, and F15 as well as the SSMIS sensors on board DMSP satellites F16, F17, and F18. The data record covers the time period from July 1987 through the present with a 7 to 10 day latency. The spatial and temporal resolutions of the BASE files correspond to the original resolution of the raw source TDR observations. There are roughly 15 orbits per day with a swath width of approximately 1400 km resulting in nearly global daily coverage. The spatial resolution of the data is a function of the sensor/channel and varies from approximately ~50 km for the lowest frequency channels to ~15km for the high-frequency channels. These files contain all of the information from the original source TDR files with the following changes/additions. The BASE files have been reorganized into single orbit granules with duplicate scans removed, and spacecraft position and velocity based on the TLE (two line element) data have been added for calculating geolocation. With the exception of duplicate scans, none of data from the original TDR files was changed or removed. This BASE TDR dataset is used by CSU as input for the subsequent processing of the final intercalibrated Fundamental Climate Data Record (FCDR). The file format is netCDF-4 with added metadata that follow the Climate and Forecast (CF) Conventions and Attribute Convention for Dataset Discovery (ACDD).
purpose: This BASE TDR dataset preserves the long-term original TDR record in an easy to read self-describing format that simplifies subsequent re-use and data processing.
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fileName: https://www.ncei.noaa.gov/pub/data/metadata/images/C00788_CSU_BASEFILE_T19H.png
fileDescription: An orbit of 19.35 GHz horizontally-polarized (channel 12) antenna temperature from SSMIS on F17.
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keyword: Earth Science > Spectral/Engineering > Microwave > Antenna Temperature
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keyword: Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > SSM/I > Special Sensor Microwave/Imager
keyword: Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > SSMIS > Special Sensor Microwave Imager/Sounder
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keyword: DMSP 5D-2/F8 > Defense Meteorological Satellite Program-F8
keyword: DMSP 5D-2/F10 > Defense Meteorological Satellite Program-F10
keyword: DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11
keyword: DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
keyword: DMSP 5D-2/F14 > Defense Meteorological Satellite Program-F14
keyword: DMSP 5D-3/F15 > Defense Meteorological Satellite Program-F15
keyword: DMSP 5D-3/F16 > Defense Meteorological Satellite Program-F16
keyword: DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17
keyword: DMSP 5D-3/F18 > Defense Meteorological Satellite Program-F18
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keyword: 10 km - < 50 km or approximately .09 degree - < .5 degree
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keyword: DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
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otherConstraints: Cite as: Kummerow, C., W. Berg, M. Sapiano, J. Horsman, D. McKague, and NOAA CDR Program (2013): BASE Temperature Data Record (TDR) from the SSM/I and SSMIS Sensors, CSU Version 1. [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
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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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language: eng; USA
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description: ground condition
beginPosition: 1987-07-09
endPosition:
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orderingInstructions: Contact NCEI for other distribution options and instructions.
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linkage: http://has.ncdc.noaa.gov/pls/plhas/HAS.FileAppRouter?datasetname=CSU_SSMIS&subqueryby=STATION&outdest=FILE
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linkage: http://rain.atmos.colostate.edu/FCDR/Archive_Docs/formatspecs/ssmi_base_format_spec_v1.pdf
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statement: The dataset was produced by Colorado State University and is archived at the NOAA NCDC.
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description: The original TDR files from SSM/I and SSMIS are organized into orbit granules, have ephemeris information added (for later use to calculate geolocation), are reformatted into netCDF, and saved as BASE files. Some quality control checks were done during the creation of the BASE files including checks for scan time errors leading to erroneous pixel geolocation and/or large variance from climatology for multiple data scans. The pixel geolocation check is done for all channels, while the climatology check only applies to the FCDR processing.
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description: DMSP Temperature Data Record (TDR) of Antenna Temperatures from the SSM/I and SSMIS Sensors
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title: DMSP Temperature Data Record (TDR) of Antenna Temperatures from the SSM/I and SSMIS Sensors
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dateTime:
DateTime: 2015-04-22T00:00:00
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maintenanceNote: Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.