# baseURI: /files/lod/dpframework/id/NF00845

@prefix : </files/lod/dpframework/schema> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix nara: </data/lod/dpframework/def/> .
@prefix naraid: </data/lod/dpframework/id/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix wikidata: <http://www.wikidata.org/entity/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

naraid:NF00845
  a nara:FileFormat ;
  dcterms:description "SEG-Y rev 0 is an early open standard for storing geophysical (seismic) data on 9-track tape. The format consists of a a 3200-byte EBCDIC reel header, a 400-byte binary reel header, and trace records consisting of a 240-byte binary trace header and trace data. SEG-Y has since been revised several times (including rev 1, 2, and 2.1 between 2002 and 2023), maintaining many key features of the original specification while updating other features to account for newer storage media and advances in geophysical data recording technologies. Although SEG-Y is an open standard, several companies made their own proprietary modifications to the format, especially prior to the first revision in 2002, so there may be many examples of SEG-Y files that cannot be validated against the standard." ;
  dcterms:identifier "NF00845" ;
  rdfs:label "NF00845" ;
  wikidata:p1195 "segy" ;
  wikidata:p1195 "sgy" ;
  wikidata:p3381 "http://fileformats.archiveteam.org/wiki/Ext:segy" ;
  wikidata:p973 "https://en.wikipedia.org/wiki/SEG-Y" ;
  wikidata:p973 "https://library.seg.org/pb-assets/technical-standards/seg_y_rev0-1686080980707.pdf" ;
  wikidata:p973 "https://www.ibm.com/docs/en/odi?topic=data-seismic-conversion" ;
  wikidata:p973 "https://www.wikidata.org/wiki/Q3943569" ;
  nara:category naraid:Geospatial ;
  nara:category naraid:StructuredData ;
  nara:formatName "SEG-Y rev 0" ;
  nara:preservationAction naraid:Retain ;
  nara:preservationPlan "Retain" ;
  nara:riskLevel naraid:Moderate ;
  nara:tools "FME" ;
.
</files/lod/dpframework/id/NF00845>
  a owl:Ontology ;
.