@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/944b7691-af37-4fb4-9393-c114e7997829>
  skos:prefLabel "Imaging Spectrometers/Radiometers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/e8a6f9ad-e376-495c-869e-3467526b49ec> .

<https://gcmd.earthdata.nasa.gov/kms/concept/e8a6f9ad-e376-495c-869e-3467526b49ec>
  ns0:resource [ ] ;
  skos:changeNote """2013-02-07 10:43:17.0 [saritz] Insert Concept 
add broader relation (OLI [e8a6f9ad-e376-495c-869e-3467526b49ec,82109] - Imaging Spectrometers/Radiometers [944b7691-af37-4fb4-9393-c114e7997829,74845]); 
""" ;
  ns0:altLabel [ ] ;
  skos:definition """[Source: NASA LDCM Mission Homepage, http://ldcm.nasa.gov/spacecraft_instruments/oli.html ]

The Operational Land Imager (OLI), built by the Ball Aerospace & Technologies Corporation, will measure in the visible, near infrared, and short wave infrared portions of the spectrum. Its images will have 15-meter (49 ft.) panchromatic and 30-meter multi-spectral spatial resolutions along a 185 km (115 miles) wide swath, covering wide areas of the Earth's landscape while providing sufficient resolution to distinguish features like urban centers, farms, forests and other land uses. The entire Earth will fall within view once every 16 days due to LDCM's near-polar orbit. 

OLI's design is an advancement in Landsat sensor technology and uses an approach demonstrated by the Advanced Land Imager sensor flown on NASA's experimental EO-1 satellite. Instruments on earlier Landsat satellites employed scan mirrors to sweep the instrument fields of view across the surface swath width and transmit light to a few detectors. The OLI will instead use long detector arrays, with over 7,000 detectors per spectral band, aligned across its focal plane to view across the swath. This "push-broom" design results in a more sensitive instrument providing improved land surface information with fewer moving parts. With an improved signal-to-noise ratio compared to past Landsat instruments, engineers expect this new OLI design to be more reliable and to provide improved performance. 

More Information: http://ldcm.nasa.gov/spacecraft_instruments/oli.html


Group: Instrument_Details
   Entry_ID: OLI
   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: OLI
      Long_Name: Operational Land Imager
   End_Group
   Group: Associated_Platforms
      Short_Name: LANDSAT-8
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 0.433–0.453 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 0.450–0.515 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 0.525–0.600 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 0.630–0.680 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Near Infrared
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 0.845–0.885 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Infrared > Reflected
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 1.560–1.660 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Infrared > Reflected
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 2.100–2.300 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Visible
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 0.500–0.680 μm
   End_Group
   Group: Spectral_Frequency_Information
      Wavelength_Keyword: Near Infrared
      Number_Channels: 1
      Spectral_Frequency_Coverage_Range: 1.360–1.390 μm
   End_Group
   Online_Resource: http://ldcm.nasa.gov/spacecraft_instruments/oli.html
   Sample_Image: http://www.nasa.gov/images/content/566477main_ldcm-oli_s2.jpg
   Creation_Date: 2013-02-07
   Group: Instrument_Logistics
      Instrument_Owner: USA/NASA
      Instrument_Owner: USA/USGS
   End_Group
End_Group"""@en ;
  skos:prefLabel "OLI"@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 .