Found 65 datasets matching "Umnak Island".
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These data provide an accurate high-resolution shoreline compiled from imagery of Eastern Umnak Island, Cape Tanak to Unmak Pass, AK . This vector shoreline data is based on an office...
Search relevance: 149.55 | Views last month: 0 -
These data provide an accurate high-resolution shoreline compiled from imagery of Northwestern Unalaska Island, Umnak Pass to Spray Cape, AK . This vector shoreline data is based on an office...
Search relevance: 120.25 | Views last month: 0 -
This dataset consists of nine tables that include radiocarbon dates, Cesium-137 activity, grain size measurements, and scanning X-ray fluorescence element intensity counts.
Search relevance: 89.63 | Views last month: 0 -
This publication releases swath bathymetry and backscatter datasets derived from multibeam bathymetric data acquired by the U.S. Geological Survey (USGS) on the R/V Marcus G. Langseth legs MGL1108...
Search relevance: 55.15 | Views last month: 2 -
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA Fisheries, Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey in the...
Search relevance: 48.82 | Views last month: 0 -
The data consist of counts of sea urchins in quadrats from over 600 nearshore rocky bottom sites that were sampled by scuba between 1987 and 2021. The sites are from 38 locations on the north...
Search relevance: 47.94 | Views last month: 0 -
Southeastern Aleutian Basin (Bogoslof Island) Acoustic-Trawl Survey of Walleye Pollock (DY1603, EK60). The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine...
Search relevance: 47.82 | Views last month: 0 -
The data consist of test diameters of sea urchins collected from quadrats from over 600 nearshore rocky bottom sites that were sampled by scuba between 1987 and 2021. The sites are from 38...
Search relevance: 47.36 | Views last month: 0 -
The data consist of counts of kelps and estimated percent cover of fleshy red algae, other benthic algal cover, and non-motile invertebrates in quadrats from over 600 nearshore rocky bottom sites...
Search relevance: 46.86 | Views last month: 0 -
The data consist of latitude and longitude of over 600 nearshore rocky bottom sites that were sampled by SCUBA between 1987 and 2021. The sites are from 38 locations on the north Pacific Rim...
Search relevance: 46.86 | Views last month: 0 -
Between 1987 and 2021, over 600 nearshore rocky bottom sites were sampled by scuba at 38 locations on the north Pacific Rim ranging from Bering Island, along the Aleutian Island chain and the...
Search relevance: 44.70 | Views last month: 0 -
This USGS Data Release presents major-oxide glass geochemical results from tephras erupted form Alaska volcanoes. This data set is in support of volcano hazard studies by the Alaska Volcano...
Search relevance: 33.75 | Views last month: 1 -
This shapefile contains center-beam depths for approximately 5804 trackline kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey...
Search relevance: 23.77 | Views last month: 0 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 23.33 | Views last month: 0 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 23.33 | Views last month: 0 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 23.26 | Views last month: 1 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 23.26 | Views last month: 0 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 23.26 | Views last month: 0 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 23.11 | Views last month: 1 -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine...
Search relevance: 22.36 | Views last month: 1
