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

<https://gcmd.earthdata.nasa.gov/kms/concept/4190ebdc-e89a-4f3f-bc74-b2af4c68d009>
  skos:prefLabel "Profilers/Sounders"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/a9bd961e-1063-4f37-99b6-ecd77aa9eb40> .

<https://gcmd.earthdata.nasa.gov/kms/concept/a9bd961e-1063-4f37-99b6-ecd77aa9eb40>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The AIRS (Atmospheric Infrared Sounder) instrument is a high spectral resolution grating spectrometer containing 2378 infrared channels in the 3.74 to 15.4 micron spectral range for obtaining atmospheric temperature profiles and a variety of additional Earth/atmosphere products.  AIRS is centered on measuring accurate temperature and humidity profiles throughout the atmosphere.  AIRS also provides four visible/near-infrared channels (0.4 - 1.0 &#956;m) to characterize cloud and surface properties.

Key AIRS Facts
Heritage: Advanced Moisture and Temperature Sounder (AMTS), High
Resolution Infrared Radiation Sounder (HIRS)
Instrument Type: Temperature controlled (155 K) array grating spectrometer, plus a visible/near-infrared photometer
Aperture: 10 cm
Swath Width: 1650 km
Coverage: Global coverage every 1 to 2 days
Spatial Resolution: Infrared: 13.5 km at nadir; Visible/near-infrared: 2.3 km at nadir
Dimensions: 116.5 cm x 80 cm x 95.3 cm
Mass: 177 kg
Power: 180/220 W (beginning/end of life)
Duty Cycle: 100%
Field of View (FOV): ± 49.5° cross-track from nadir
Instrument IFOV (track/scan): Infrared: 1.1° x 0.6° (13.5 km x 7.4 km at nadir); Visible/near-infrared: 0.149° x 0.190° (1.8 km x 2.3 km at nadir)
Scan Period: 2.667 s
Scan Sampling (scan/track): Infrared: 90 x 1 (1.1° spacing), in 2 s; visible/near-infrared: 720 x 9 (0.138° x 0.185° spacing), in 2 s
Design Life: 5 years


Group: Instrument_Details
   Entry_ID: AIRS
   Group: Instrument_Identification
      Instrument_Category: Earth Remote Sensing Instruments
      Instrument_Class: Passive Remote Sensing
      Instrument_Type: Profilers/Sounders
      Short_Name: AIRS
      Long_Name: Atmospheric Infrared Sounder
   End_Group
   Group: Associated_Platforms
      Short_Name: AQUA
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Number_Channels: 2 Channels
      Spectral_Frequency_Coverage_Range: 0.4 μm - 0.68 μm
      Spectral_Frequency_Resolution: &#955;/&#916;&#955; 1200 nominal
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Near Infrared
      Number_Channels: 2 Channels
      Spectral_Frequency_Coverage_Range: 0.71 μm - 0.94 μm
      Spectral_Frequency_Resolution: &#955;/&#916;&#955; 1200 nominal
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Infrared > Thermal
      Number_Channels: 2378
      Spectral_Frequency_Coverage_Range: 3.74 μm - 15.4 μm
      Spectral_Frequency_Resolution: &#955;/&#916;&#955; 1200 nominal
   End_Group
   Online_Resource: http://airs.jpl.nasa.gov/
   Online_Resource: http://aqua.nasa.gov/content/airs
   Online_Resource: http://disc.gsfc.nasa.gov/AIRS/index.shtml
   Online_Resource: http://mirador.gsfc.nasa.gov/cgi-bin/mirador/presentNavigation.pl?tree=project&project=AIRS
   Sample_Image: http://airs.jpl.nasa.gov/system/content_pages/main_images/13_13_8262767875_dff40d0f0b_z.jpg
   Creation_Date: 2007-04-16
   Group: Instrument_Logistics
      Data_Rate: 1.27 Mbps
      Instrument_Start_Date: 2002-08-31
      Instrument_Owner: USA/NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "AIRS"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/4190ebdc-e89a-4f3f-bc74-b2af4c68d009> ;
  a skos:Concept .