Jeux de données
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103 jeux de données trouvés
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Seafloor Slope, 5m - Tutuila, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Slope is derived from gridded (5 m cell size) multibeam bathymetry, collected aboard NOAA Ship Hiialaka'i and R/V AHI, Cell values reflect the maximum rate of change (in degrees) in elevation between neighboring cells derived with the ArcGIS Spatial Analyst…
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Seafloor Rugosity, 5m - Tutuila, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Rugosity is derived from gridded (5 m cell size) multibeam bathymetry, collected aboard NOAA Ship Hiialaka'i and R/V AHI, using the Benthic Terrain Modeler with rugosity methods by Jeff Jenness (2003). Cell values reflect the surface area and (surface area) /…
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Hard-Soft Seafloor Classification, 5m (Simrad) - Tutuila, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Tutuila Island, American Samoa, South Pacific. The dataset was derived using a combination of Simrad em3002d…
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Hard-Soft Seafloor Classification, 5m (Reson) - Tutuila, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Tutuila Island, American Samoa, South Pacific. The dataset was derived using a combination of Reson 8101…
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Bathymetric Position Index (BPI) Zones, 5m - Tutuila, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Bathymetric position index (BPI) zones are derived from a focal mean analysis on bathymetry and slope. The grid is based on gridded (5 m cell size) multibeam bathymetry, collected aboard NOAA Ship Hi'ialakai and R/V AHI, and it was creating using the Benthic…
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Bathymetric Position Index (BPI) Structures, 5m - Tutuila, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Bathymetric position index (BPI) structures are derived from two scales of a focal mean analysis on bathymetry; slope; and depth. The grid is based on gridded (5 m cell size) multibeam bathymetry, collected aboard NOAA Ship Hiialaka'i and R/V AHI, and it was…
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Seafloor Slope, 40m - Swains, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Slope is derived from gridded (40 m cell size) multibeam bathymetry, collected aboard R/V AHI, and NOAA ship Hi'ialakai. Cell values reflect the maximum rate of change (in degrees) in elevation between neighboring cells derived with the ArcGIS Spatial Analyst…
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Seafloor Rugosity, 40m - Swains, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Rugosity is derived from gridded (40 m cell size) multibeam bathymetry, collected aboard R/V AHI and NOAA ship Hi'ialakai. Cell values reflect the (surface area) / (planimetric area) ratio for the area contained within that cell's boundaries. They provide…
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Hard-Soft Seafloor Classification, 40m - Swains, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymetry derivatives at Swains Island, American Samoa. The dataset was created from gridded (40 m cell size) multibeam bathymetry…
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Bathymetric Position Index (BPI) Zones, 40m - Swains, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Bathymetric position index (BPI) zones are derived from gridded (40 m cell size) multibeam bathymetry, collected aboard R/V AHI and NOAA ship Hi'ialakai, and it was created using the Benthic Terrain Modeler. Cell values represent one of 4 classes (crest,…
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Bathymetric Position Index (BPI) Structures, 40m - Swains, American Samoa
Pacific Islands Ocean Observing System (PacIOOS)Bathymetric position index (BPI) structures are derived from gridded (40 m cell size) multibeam bathymetry, collected aboard R/V AHI and NOAA ship Hi'ialakai, and it was created using the Benthic Terrain Modeler. Cell values represent one of 13 classes in an…
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NOAA/PIBHMC 60-m Bathymetry: Guam
Pacific Islands Ocean Observing System (PacIOOS)A 60-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding Guam compiled from ship-borne multibeam sonar surveys. Almost complete bottom coverage was achieved in depths between 3 and 3500 m. Data collected by the…
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NOAA/PIBHMC 5-m Bathymetry: CNMI: Maug: Hillshade
Pacific Islands Ocean Observing System (PacIOOS)A 5-m resolution gridded digital elevation model (DEM) grayscale hillshade for the bathymetry (ocean depth) surrounding Maug Island in the Commonwealth of the Northern Mariana Islands (CNMI) compiled from ship-borne multibeam sonar surveys merged with coastal…
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NOAA/PIBHMC 60-m Bathymetry: Guam: Hillshade
Pacific Islands Ocean Observing System (PacIOOS)A 60-m resolution gridded digital elevation model (DEM) grayscale hillshade for the bathymetry (ocean depth) surrounding Guam compiled from ship-borne multibeam sonar surveys. Almost complete bottom coverage was achieved in depths between 3 and 3500 m. Data…
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NOAA/PIBHMC 60-m Bathymetry: CNMI: Rota
Pacific Islands Ocean Observing System (PacIOOS)A 60-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding Rota Island in the Commonwealth of the Northern Mariana Islands (CNMI) compiled from ship-borne multibeam sonar surveys. Almost complete bottom coverage was…
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NOAA/PIBHMC 5-m Bathymetry: American Samoa: Tutuila
Pacific Islands Ocean Observing System (PacIOOS)A 5-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding Tutuila Island in American Samoa compiled from ship-borne multibeam sonar surveys merged with coastal bathymetry derived from multipectral IKONOS satellite…
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NOAA/PIBHMC 5-m Bathymetry: CNMI: Tinian
Pacific Islands Ocean Observing System (PacIOOS)A 5-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding Tinian Island in the Commonwealth of the Northern Mariana Islands (CNMI) compiled from ship-borne multibeam sonar surveys merged with coastal bathymetry derived…
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NOAA/PIBHMC 5-m Bathymetry: American Samoa: Tau
Pacific Islands Ocean Observing System (PacIOOS)A 5-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding Tau Island in American Samoa compiled from ship-borne multibeam sonar surveys merged with coastal bathymetry derived from multipectral IKONOS satellite data.…
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NOAA/PIBHMC 5-m Bathymetry: American Samoa: Swains
Pacific Islands Ocean Observing System (PacIOOS)A 5-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding Swains Island in American Samoa compiled from ship-borne multibeam sonar surveys merged with coastal bathymetry derived from multipectral WorldView-2 (WV-2)…
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NOAA/PIBHMC 5-m Bathymetry: CNMI: Saipan
Pacific Islands Ocean Observing System (PacIOOS)A 5-m resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding the island of Saipan in the Commonwealth of the Northern Mariana Islands (CNMI) compiled from ship-borne multibeam sonar surveys merged with coastal bathymetry…
Autre ERDDAPHTMLWCSWMS