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

<https://gcmd.earthdata.nasa.gov/kms/concept/72227178-bb4c-4ff5-98a3-f976aa3f3714>
  skos:prefLabel "Photon/Optical Detectors"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/77bb89d9-23a6-47dd-a366-0cd32b00c52e> .

<https://gcmd.earthdata.nasa.gov/kms/concept/77bb89d9-23a6-47dd-a366-0cd32b00c52e>
  skos:changeNote """2021-03-01 16:16:09.0 [sritz]  
update WeightedRelation (Platform-Instrument); 
update WeightedRelation (1.0); 
""", """2021-03-01 16:07:55.0 [sritz]  
insert AltLabel (id: null
category: primary
text: Polarized Imaging Nephelometer
language code: en); 
""", """2021-03-01 16:07:02.0 [sritz] Insert Concept 
add broader relation (PI-NEPH [77bb89d9-23a6-47dd-a366-0cd32b00c52e,560894] - Photon/Optical Detectors [72227178-bb4c-4ff5-98a3-f976aa3f3714,544545]); 
""", """2021-03-01 16:08:39.0 [sritz]  
insert Definition (id: null
text: The Polarized Imaging Nephelometer (PI-Neph) is a novel in-situ instrument developed for accurate measurements of the first two matrix elements of the scattering phase function of aerosol particles. The instrument takes in aerosol through an inlet and bombards the sample with a polarized laser beam, at 445, 532, or 661nm, inside a closed chamber. The laser beam is split into forward and backward segments by a retroreflector; a wide field-of-view camera inside the chamber images the intensity of scattered light from 5-175 degrees in scattering angle. The high-resolution phase function measurement from the PI-Neph is used to retrieve aerosol microphysical properties including refractive index, size distributions, sphericity, asymmetry parameter, and single-scattering albedo akin to multi-angle remote sensors.
language code: en); 
""", """2021-03-01 16:12:53.0 [sritz]  
insert WeightedRelation (id: null
related concept uuid: 3f85676a-11a0-460b-a25a-a9bb9118a6c4
relationship type: null
relationship value: null
generated by: null); 
insert WeightedRelation (id: null
related concept uuid: 50e316c6-41f6-444d-834e-fdfa6fbc80e2
relationship type: null
relationship value: null
generated by: null); 
insert WeightedRelation (id: null
related concept uuid: eb80f2b1-4c2f-4cbb-8cb2-40a7613edff3
relationship type: null
relationship value: null
generated by: null); 
insert WeightedRelation (id: null
related concept uuid: d6aa2406-0323-43c1-b890-3509ee22784e
relationship type: null
relationship value: null
generated by: null); 
""", """2021-03-01 16:15:34.0 [sritz]  
insert WeightedRelation (id: null
related concept uuid: a930c78a-6ed3-4a49-ad2d-bd2c5c36d291
relationship type: null
relationship value: null
generated by: null); 
""" ;
  a skos:Concept ;
  skos:definition "The Polarized Imaging Nephelometer (PI-Neph) is a novel in-situ instrument developed for accurate measurements of the first two matrix elements of the scattering phase function of aerosol particles. The instrument takes in aerosol through an inlet and bombards the sample with a polarized laser beam, at 445, 532, or 661nm, inside a closed chamber. The laser beam is split into forward and backward segments by a retroreflector; a wide field-of-view camera inside the chamber images the intensity of scattered light from 5-175 degrees in scattering angle. The high-resolution phase function measurement from the PI-Neph is used to retrieve aerosol microphysical properties including refractive index, size distributions, sphericity, asymmetry parameter, and single-scattering albedo akin to multi-angle remote sensors."@en ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/72227178-bb4c-4ff5-98a3-f976aa3f3714> ;
  ns0:reference [ ] ;
  skos:prefLabel "PI-NEPH"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  ns0:altLabel [ ] .