@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/b5f5efbe-5b2a-405d-b1ea-ab6c90028009>
  skos:prefLabel "Pressure/Height Meters"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/435dfcc7-2683-45ba-a687-af58302a29ea> .

<https://gcmd.earthdata.nasa.gov/kms/concept/435dfcc7-2683-45ba-a687-af58302a29ea>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The USGS has developed a helicopter-based instrument, known as the Airborne Height Finder (AHF) which is able to measure the terrain surface elevation, whether above or under the water, in a noninvasive, nondestructive manner. Using an airborne surveying platform (the helicopter) equipped with GPS (global positioning system) technology and a high-tech version of the surveyor's plumb bob, the AHF system distinguishes itself from remote sensing technologies in its ability to physically penetrate vegetation and murky water, providing reliable measurement of the underlying topographic surface.


Group: Instrument_Details
   Entry_ID: AHF
   Group: Instrument_Identification
      Instrument_Category: In Situ/Laboratory Instruments
      Instrument_Class: Pressure/Height Meters
      Short_Name: AHF
      Long_Name: AIRBORNE HEIGHT FINDER
   End_Group
   Group: Instrument_Associated_Sensors
      Short_Name: AHF
   End_Group
   Online_Resource: http://www.usgs.gov/features/h_finder.html
   Sample_Image: http://www.usgs.gov/features/images/height_finder2.jpg
   Creation_Date: 2008-03-18
End_Group"""@en ;
  skos:prefLabel "AHF"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/b5f5efbe-5b2a-405d-b1ea-ab6c90028009> ;
  a skos:Concept .