Popis

We assembled 1.75 million National Ocean Service (NOS) bathymetric soundings from 225 lead-line and single-beam echosounder hydrographic surveys conducted from 1901 to 1999 in the central Gulf of Alaska. These bathymetry data are available from the National Geophysical Data Center (NGDC: http://www.ngdc.noaa.gov), which archives and distributes data that were originally collected by the NOS and others. While various bathymetry data have been downloaded previously from NGDC, compiled, and used for a variety of projects, our effort differed in that we compared and corrected the digital bathymetry by studying the original analog source documents - digital versions of the original survey maps, called smooth sheets. There were several areas where these older surveys were superseded by more recent, higher quality multibeam surveys, mostly from the NOS (n=106). Three of these were unprocessed NOS multibeam surveys in the Sitka area, which we edited and processed into final bathymetric surfaces. We reduced the resolution of these multibeam surveys to 100 m, since some may have sub-meter resolution and many exceed a million soundings, and added them to our bathymetry compilation. Survey H11354 was missing in the entrance to Sitka Sound. Processing and adding its bathymetric data to our compilation filled in a substantial gap in Sitka area.

Obecné informace

• Dokumentace

  http://catalog.data.gov/dataset/afsc-race-gap-prescott-central-gulf-of-alaska-multibeam-survey-h11354 Do you think this data is incorrect? Let us know

• Poskytovatel

  National Oceanic and Atmospheric Administration, Department of Commerce Do you think this data is incorrect? Let us know

Právní informace

• Právní prohlášení

  http://catalog.data.gov/dataset/afsc-race-gap-prescott-central-gulf-of-alaska-multibeam-survey-h11354 Do you think this data is incorrect? Let us know

• Under which licence can people outside the US reuse this data?

  Creative Commons CCZero Do you think this data is incorrect? Let us know

• Obsah chráněný autorským právem

  yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

• Licence obsahu

  Creative Commons CCZero Do you think this data is incorrect? Let us know

• Ochrana soukromí

  nehraje roli, data se netýkají fyzických osob Do you think this data is incorrect? Let us know

Praktické informace

• Relevantní datové katalogy

  http://catalog.data.gov/organization/noaa-gov Do you think this data is incorrect? Let us know

• Frekvence změn

  no Do you think this data is incorrect? Let us know

• Zálohování dat

  data jsou zálohována offsite Do you think this data is incorrect? Let us know

Technické informace

• Seznam publikovaných datových sad

  http://catalog.data.gov/api/rest/package/afsc-race-gap-prescott-central-gulf-of-alaska-multibeam-survey-h11354 Do you think this data is incorrect? Let us know

• Formát dat

  standardizovaný, otevřený Do you think this data is incorrect? Let us know

Sociální informace

• Strojově čitelná metadata

  název Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  popis Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

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• Strojově čitelná metadata

  URL dokumentace Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  četnost aktualizací Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  poskytovatel Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  distribuce Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  datum vydání Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  datum poslední změny Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  související časové období Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  související geografické území Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  jazyk Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  název Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  popis Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  datum vydání Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  URL pro přístup k datům Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  URL datové sady Do you think this data is incorrect? Let us know

• Kontakty

  http://catalog.data.gov/dataset/afsc-race-gap-prescott-central-gulf-of-alaska-multibeam-survey-h11354 Do you think this data is incorrect? Let us know

• Zpětná vazba k publikovaným datovým sadám

  http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/afsc-race-gap-prescott-central-gulf-of-alaska-multibeam-survey-h11354 Do you think this data is incorrect? Let us know