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@prefix datacite: <> .
@prefix dcterms: <> .
@prefix xsd: <> .
@prefix dwc: <> .
@prefix gcis: <> .
@prefix cito: <> .
@prefix dcat: <> .
@prefix prov: <> .
@prefix skos: <> .
@prefix rdf: <> .
@prefix biro: <> .

   datacite:identifier "nasa-podaac-aquarius_l3_sss_smia_daily_v4";
   dcterms:title "Aquarius Official Release Level 3 Sea Surface Salinity Standard Mapped Image Ascending Daily Data V4.0"^^xsd:string;
   datacite:hasIdentifier [ a datacite:AlternateResourceIdentifier; rdf:value "AQUARIUS_L3_SSS_SMIA_DAILY_V4" ] ;
   dcat:landingPage <>;
   dcterms:description "Aquarius Level 3 sea surface salinity (SSS) standard mapped image data contains gridded 1 degree spatial resolution SSS averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the Daily, Ascending sea surface salinity product for version 4.0 of the Aquarius data set, which is the official end of prime mission public data release from the AQUARIUS/SAC-D mission. Only retrieved values for Ascending passes have been used to create this product. The Aquarius instrument is onboard the AQUARIUS/SAC-D satellite, a collaborative effort between NASA and the Argentinian Space Agency Comision Nacional de Actividades Espaciales (CONAE). The instrument consists of three radiometers in push broom alignment at incidence angles of 29, 38, and 46 degrees incidence angles relative to the shadow side of the orbit. Footprints for the beams are: 76 km (along-track) x 94 km (cross-track), 84 km x 120 km and 96km x 156 km, yielding a total cross-track swath of 370 km. The radiometers measure brightness temperature at 1.413 GHz in their respective horizontal and vertical polarizations (TH and TV). A scatterometer operating at 1.26 GHz measures ocean backscatter in each footprint that is used for surface roughness corrections in the estimation of salinity. The scatterometer has an approximate 390km swath."^^xsd:string;
## Dates of dataset release and access
   dcterms:issued "2015-06-10T20:47:58"^^xsd:dateTime;

## Spatial and temporal information:
dcterms:spatial [
    a dcterms:Location, gcis:SpatialExtent;
    gcis:northBoundLatitude "90"^^xsd:float;
    gcis:southBoundLatitude "-90"^^xsd:float;
    gcis:eastBoundLongitude "180"^^xsd:float;
    gcis:westBoundLongitude "-180"^^xsd:float;
  ] ;
dcterms:temporal [
    a dcterms:PeriodOfTime, gcis:TemporalExtent;
    gcis:startDate "2011-08-25T00:00:00"^^xsd:dateTime;
    gcis:endDate "2015-06-07T12:51:00"^^xsd:dateTime;
    ] ;

## Attributes and keywords

## Instrument Instances
   prov:wasAttributedTo <>;
   prov:wasAttributedTo <>;

   a gcis:Dataset .

## This entity was produced by an organization:     
   prov:qualifiedAttribution [
      a prov:Attribution;
      prov:agent <>;
      prov:hadRole <>;
      ] .

## Also known as:
   skos:altLabel "AQUARIUS_L3_SSS_SMIA_DAILY_V4";
   gcis:hasURL "";
   skos:exactMatch <> .
   skos:altLabel "PODAAC-AQR40-3S1AS";
   gcis:hasURL "";
   skos:exactMatch <> .