@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/46e44a80-c2a2-4a08-a473-a1083b82ceb1> a dcat:Dataset ;
    dct:description """SAS technology exemplifies recent advances in geophysical
					survey technology that will revolutionize maritime archaeological remote
					sensing. Applied Signal Technology (AST) has combined their SAS with the
					MacArtney FOCUS-2 ROTV to create the ultimate towed acoustic imaging device,
					PROSAS Surveyor. Capable of an area coverage rate of 2.5 kilometer/hour with a
					resolution of 3 centimeters, PROSAS Surveyor will greatly expand capabilities to
					locate even the oldest archaeological sites on the continental shelf,
					particularly where sedimentation is limited. Large area seafloor mapping at a
					resolution capable of imaging very small targets is a tremendously expensive
					proposition for submerged land managers responsible for bottom lands from 30 to
					300 meters in depth. Daily operating costs for a suitable research vessel and
					personnel limit the area that can be investigated. This project will for the
					first time apply commercially available SAS technology to the search for
					historic shipwrecks. The rapidity and resolution of this project's survey will
					be as much as a four-fold increase in area covered as compared to conventional
					marine archaeological remote sensing survey.""" ;
    dct:identifier "StellwagenBank2010" ;
    dct:issued "2025-11-21T09:51:36.301728"^^xsd:dateTime ;
    dct:modified "2025-11-21T09:51:36.301732"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-70.5980 42.0900, -70.0360 42.0900, -70.0360 42.7700, -70.5980 42.7700, -70.5980 42.0900))"^^gsp:wktLiteral ] ;
    dct:title """Synthetic Aperture Sonar Survey to Locate
							Archaeological Resources in the Stellwagen Bank National Marine
							Sanctuary on NOAA Office of National Marine Sanctuaries vessel SRVx
							between 20100823 and 20100901""" ;
    dcat:distribution <https://data.amerigeoss.org/dataset/46e44a80-c2a2-4a08-a473-a1083b82ceb1/resource/8d3c3286-030b-47f3-bf58-1a6fc11f8f2d> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "archaeological",
        "archaeology",
        "ckan",
        "conservation",
        "conserve",
        "crm",
        "cultural-resource-management",
        "expedition",
        "exploration",
        "explorer",
        "geo",
        "geoss",
        "historic",
        "marine-archaeology",
        "marine-education",
        "maritime",
        "maritime-archaeology",
        "massachusetts-bay",
        "national",
        "nautical",
        "nautical-archaeology",
        "noaa",
        "north-america",
        "north-atlantic-ocean",
        "ocean",
        "ocean-discovery",
        "ocean-education",
        "ocean-exploration",
        "ocean-exploration-and-research",
        "ocean-literacy",
        "ocean-research",
        "oer",
        "paleochannel",
        "preserve",
        "protect",
        "protection",
        "remote-sensing",
        "science",
        "scientific-mission",
        "scientific-research",
        "sea",
        "stellwagen-bank-national-marine-sanctuary",
        "stewardship",
        "submerged-cultural-heritage",
        "submerged-cultural-resource",
        "systematic-exploration",
        "technology",
        "transformational-research",
        "uch",
        "undersea",
        "underwater",
        "underwater-cultural-heritage",
        "united-states" .

<https://data.amerigeoss.org/dataset/46e44a80-c2a2-4a08-a473-a1083b82ceb1/resource/8d3c3286-030b-47f3-bf58-1a6fc11f8f2d> a dcat:Distribution ;
    dct:description "mapsOE.htm" ;
    dct:format "HTML" ;
    dct:issued "2020-11-12T08:09:26.241890"^^xsd:dateTime ;
    dct:modified "2025-11-21T09:51:36.275847"^^xsd:dateTime ;
    dct:title "Web Page" ;
    dcat:accessURL <https://www.ncei.noaa.gov/maps/oer-digital-atlas/mapsOE.htm> .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .