@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/44d87436-a753-4d0c-80f6-7e6b48795575>
  ns0:altLabel [ ] ;
  skos:definition """The Special Sensor Microwave Imager/Sounder (SSMIS) continues the legacy of passive microwave instruments carried aboard Defense Meteorological Satellite 
[Text Source: National Snow and Ice Data Center, http://nsidc.org/data/docs/daac/ssmis_instrument/index.html ]

Program (DMSP) satellites. Beginning with the launch of the DMSP F-16 satellite on 18 October 2003, the SSMIS marks the commencement of a new series of passive microwave conically scanning imagers and sounders planned for launch over the next two decades (Sun and Weng 2008). SSMIS improves upon the surface and atmospheric retrievals of the Special Sensor Microwave Imager (SSM/I), and upon the atmospheric temperature and water vapor sounding capabilities of both the Special Sensor Microwave Temperature Sounder (SSM/T-1) and the Special Sensor Microwave Humidity Sounder (SSM/T-2). Furthermore, the SSMIS imaging and sounding sensors share the same viewing geometry, thereby allowing surface parameters to be retrieved simultaneously (Yan and Weng 2008). The SSMIS instrument is able to estimate atmospheric temperature, moisture, and surface parameters from data collected at frequencies ranging from 19 to 183 GHz over a swath width of 1707 km. SSMIS is currently carried aboard DMSP-F16, -F17, and -F18 satellites, and is slated for furture missions aboard DMSP-F19 and -F20. This document discusses the mission objectives, principles of operation, sensor specifications, and calibration information of the SSMIS instrument.


Group: Instrument_Details
   Entry_ID: SSMIS
   Group: Instrument_Identification
      Instrument_Category: Earth Remote Sensing Instruments
      Instrument_Class: Passive Remote Sensing
      Instrument_Type: Spectrometers/Radiometers
      Instrument_Subtype: Imaging Spectrometers/Radiometers
      Short_Name: SSMIS
      Long_Name: Special Sensor Microwave Imager/Sounder
   End_Group
   Group: Associated_Platforms
      Short_Name: DMSP 5D-3/F18
      Short_Name: DMSP 5D-3/F17
      Short_Name: DMSP 5D-3/F16
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: MICROWAVE
      Number_Channels: 24
      Spectral_Frequency_Coverage_Range: Center Frequency 19.35 GHz to 183.31 GHz
   End_Group
   Online_Resource: http://nsidc.org/data/docs/daac/ssmis_instrument/index.html
   Online_Resource: http://www.ncdc.noaa.gov/oa/rsad/ssmi/swath/index.html
   Creation_Date: 2012-07-13
   Group: Instrument_Logistics
      Instrument_Owner: USA/DOD
      Instrument_Owner: USA/NOAA
      Instrument_Owner: USA/NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "SSMIS"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/944b7691-af37-4fb4-9393-c114e7997829> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/944b7691-af37-4fb4-9393-c114e7997829>
  skos:prefLabel "Imaging Spectrometers/Radiometers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/44d87436-a753-4d0c-80f6-7e6b48795575> .