Beschreibung

This is a full color 24 by 36 inch poster. In many areas of the global ocean, the depth of the seafloor is not well known because survey lines by ships are hundreds of kilometers apart. Satellites carrying radar altimeters have measured the shape of the ocean along tracks only 3-4 km apart, and from these data we can make very accuratore (+/-3mGal) and high resolution (15km) maps of the marine gravity field. The gravity field mimics the seafloor topography in the 15-160 km wavelength band if sediment cover on the ocean floor is thin. Long-wavelength (greater than 160 km) topography is isostatically compensated and is not correlated with the gravity field. In addition, the satellite gravity field and the available depth measurements were used to determine the correlation between gravity and the seafloor topography. By applying this correlation to the gravity field we predict seafloor topography in the 15-160 km wavelength band. This topography is combined with a long-wavelength component estimated directly from ship depth measurements. The result reveals many new features and is within +/- 100m of actual depths in many cases. The Predicted Seafloor Topography derived from the depths estimated from Satellite Altimetry in combination with measured trackline bathymetry is an inferred data set and is not true bathymetry. It is, however, the best estimate of seafloor topography available resulting from satellite gravity data and actual ship depth measurements. These data are intended for scientific research and should not be used for navigational purposes. Additional software is required in order to manipulate the data or produce your own graphic images. Poster and CD-ROM products are available for both gravity anomaly and estimated seafloor topography of several regions. Please refer to URL http://www.ngdc.noaa.gov/mgg/announcements/announce_predict.html for more information, and to download sample images.

Allgemeine Informationen

• Die Beschreibung der Daten befindet sich unter

  http://catalog.data.gov/dataset/gravity-field-over-the-s-ocean-poster-mgg-6 Do you think this data is incorrect? Let us know

• Die Daten werden veröffentlicht von…

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

Rechtliche Information

• Die Nutzungsbestimmungen finden sich unter

  http://catalog.data.gov/dataset/gravity-field-over-the-s-ocean-poster-mgg-6 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

• Es gibt

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

• Die Inhalte können im Rahmen der folgenden Lizenz weiterverwendet werden

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

• Die Daten enthalten

  keine personenbezogenen Daten Do you think this data is incorrect? Let us know

Praktische Hinweise

• Die Daten finden sich im Katalog…

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

• Diese Daten ändern sich

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

• Die Daten werden

  örtlich getrennt gesichert Do you think this data is incorrect? Let us know

Technische Hinweise

• Die Liste der Versionen findet sich unter

  http://catalog.data.gov/api/rest/package/gravity-field-over-the-s-ocean-poster-mgg-6 Do you think this data is incorrect? Let us know

• Das Format der Daten ist

  ein standardisiertes offenes Format Do you think this data is incorrect? Let us know

Soziale Hinweise

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

  Landing Page Do you think this data is incorrect? Let us know

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

  Distribution(en) Do you think this data is incorrect? Let us know

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

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

• Die Dokumentation enthält maschinenlesbare Daten für

  zeitliche Abdeckung Do you think this data is incorrect? Let us know

• Die Dokumentation enthält maschinenlesbare Daten für

  räumliche/geographische Abdeckung Do you think this data is incorrect? Let us know

• Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für

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

• Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für

  eine URL für den Zugang zu den Daten Do you think this data is incorrect? Let us know

• Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für

  eine URL zum Herunterladen der Daten Do you think this data is incorrect? Let us know

• Einen Ansprechpartner zu diesen Daten finden Sie unter

  http://catalog.data.gov/dataset/gravity-field-over-the-s-ocean-poster-mgg-6 Do you think this data is incorrect? Let us know

• Wie sie Verbesserungen dieser Daten vorschlagen können erfahren Sie unter

  http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/gravity-field-over-the-s-ocean-poster-mgg-6 Do you think this data is incorrect? Let us know