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Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline...
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ORWA26_500UTM is a digital bathymetric surface grid of the seafloor offthe coast of Washington and Oregon. Grid cell spacing is 500m and theprojection is UTM Zone 10.The surface was produced by gridding National Ocean Service (NOS)Hydrographic Surveys collected between 1926 and 1974 (primarily1926 to 1930). This work includes the most recent bathymetric dataavailable on a regional scale over the inner to outer continental shelfoff the coast of Washington and Oregon. The results represent thebest available estimate of the seafloor morphology for the time periodcirca 1926.
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SWWA26_750UTM is a digital bathymetric surface grid of the seafloor off the coast of Southwest Washington and Northwest Oregon. Grid cell spacing is 750m and the projection is UTM Zone 10. The surface was produced by gridding National Ocean Service (NOS) Hydrographic Surveys collected between 1926 and 1928. This work includes the most recent bathymetric data available on a regional scale over the inner to middle continental shelf off the coast of Washington. The results represent the best available estimate of the seafloor morphology for the time period circa 1926.
USDA-ARS researchers have put together high resolution ARC-GIS layers for intertidal bathymetry and distance to mouth as well as eelgrass, burrowing shrimp and oyster aquaculture habitats in Willapa Bay, Washington for this project. We await results of bathtub modeling exercise and climate scenario projections to integrate and validate models to examine effects of SLR and temperature and salinity changes on these habitats and engineering species. We have also assembled a historical layer representing native oyster (Ostrea lurida) habitat in Willapa Bay and are in the process of assembling data for oyster aquaculture and potential native oyster habitats in Coos Bay, Yaquina Bay, and Netarts estuaries in Oregon.
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Two 21-day field operations were conducted in 1997 and 1998 in the estuaries and on the inner continental shelf off the northern Oregon and southern Washington coast. These cruises aboard the R/V Corliss were run in order to generate reconnaissance maps of the seafloor geology and the shallow subsurface stratigraphy using sidescan-sonar and seismic-reflection mapping techniques. The 1998 cruise also collected sediment grab samples, bottom photographs, and video images to verify the sidescan-sonar imagery and to document the seafloor geology. The combination of these data with previously collected sediment sample data (Roberts, 1974; Nittrouer, 1978; and Smith et. al., 1980) has been used to define the extent and...
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SWWA26_750UTM is a digital bathymetric surface grid of the seafloor offthe coast of Southwest Washington and Northwest Oregon.Grid cell spacing is 750m and the projection is UTM Zone 10.The surface was produced by gridding National Ocean Service (NOS)Hydrographic Surveys collected between 1926 and 1928. This work includesthe most recent bathymetric data available on a regional scale over theinner to middle continental shelf off the coast of Washington. Theresults represent the best available estimate of the seafloor morphologyfor the time period circa 1926.
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NEST98PTS_UTM is a point coverage containing digital hydrographic datafrom the coast of Southwest Washington and Northwest Oregon, USA. Thehorizontal datum is Universal Transverse Mercator, Zone 10 meters.The data set includes National Ocean Service (NOS) hydrographic surveyscollected between the 1926 and 1928, surveys collected in 1998 by the U.S.Army Corps of Engineers (USACE) around the entrances to Grays Harbor,Willapa Bay, and the Columbia River, and additional data fabricated bythe author in order to generate smooth transitions between the data sets.The user is cautioned, to use this data set with full knowledge ofthe original intent the limitations, and assumptions used to generate it.
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SWWA26PTS_UTM is a point coverage containing digital hydrographic datacollected off the coast of Southwest Washington and Northwest Oregon, USA.The horizontal datum is Universal Transverse Mercator, Zone 10 meters.The data set includes National Ocean Service (NOS) hydrographic surveyscollected between the 1926 and 1928. This data set includes the mostrecent bathymetric data available on a regional scale over the inner tomiddle continental shelf off the coast of Washington and Oregon.
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ORWA26PTS_UTM is a point coverage containing digital hydrographic datacollected off the coast of Washington and Oregon, USA. The horizontaldatum is Universal Transverse Mercator, Zone 10 meters. The data setincludes National Ocean Service (NOS) hydrographic surveys collectedbetween 1926 and 1974 (primarily 1926 to 1930). It includes the mostrecent bathymetric data available on a regional scale over the inner toouter continental shelf off the coast of Washington and Oregon.
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SWWA98_750UTM is a digital bathymetric surface grid of the seafloor offthe coast of Southwest Washington and Northwest Oregon.Grid cell spacing is 750m and the projection is UTM Zone 10.The surface grid was produced by merging National Ocean Service (NOS)Hydrographic Surveys conducted between 1926 and 1927 with recentsurveys conducted by the U.S. Army Corps of Engineers (USACE) in 1998around the entrances to Grays Harbor, Willapa Bay, and the ColumbiaRiver. The results of this work represent the best available estimate ofthe seafloor morphology for the time period circa 1998. The user iscautioned, however, to use this data set with full knowledge of theoriginal intent, the limitations, and assumptions used to generate...
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SWWA26_500UTM is a digital bathymetric surface grid of the seafloor offthe coast of Southwest Washington and Northwest Oregon. Grid cell spacingis 500m and the projection is UTM, Zone 10.The surface was produced by gridding National Ocean Service (NOS)Hydrographic Surveys collected between 1926 and 1928. This work includesthe most recent bathymetric data available on a regional scale over theinner to middle continental shelf off the coast of Washington. Theresults represent the best available estimate of the seafloor morphologyfor the time period circa 1926.
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Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline...
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The data in this release originate from a low-altitude, aeromagnetic survey of the Centralia and Chehalis area of southwestern Washington. The survey was conducted between September 22 and October 22, 2015, by Eon Geosciences, Inc, working under contract to the U.S. Geological Survey. The covered region extends from the Cascade Range in the east to Willapa Bay in the west, and includes the cities of Chehalis and Centralia, Washington, and a part of Interstate 5. Total magnetic field values were acquired using a fixed-wing aircraft flown at a target elevation of 200 m above terrain. Primary flight lines were oriented east-west and spaced 400 m apart; additional tie lines were oriented north-south and spaced 4000...
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SWWA98_500UTM is a digital bathymetric surface grid of the seafloor offthe coast of Southwest Washington and Northwest Oregon.Grid cell spacing is 500m and the projection is UTM Zone 10.The surface grid was produced by merging National Ocean Service (NOS)Hydrographic Surveys conducted between 1926 and 1927 with recentsurveys conducted by the U.S. Army Corps of Engineers (USACE) in 1998around the entrances to Grays Harbor, Willapa Bay, and the ColumbiaRiver. The results of this work represent the best available estimate ofthe seafloor morphology for the time period circa 1998. Theuser is cautioned, however, to use this data set with full knowledge ofthe original intent, the limitations, and assumptions used to generate...
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This dataset consists of tabular information from coastal studies of earthquake and tsunami history along a central part of the Cascadia Subduction Zone. The study area encompasses four estuaries along the Pacific coast of southern Washington and northernmost Oregon. Nearly all the field work took place between 1986 and 1998. Data tables, 18 in all, archive mostly georeferenced information about stratigraphy, radiocarbon ages, and trees dead and living. Some of this data was interpreted in reports published between 1987 and 2005, but most of it was previously unavailable. An accompanying guide, with hyperlinks to the data tables, explains the data tables more thoroughly than does the metadata. Contributors include...
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ORWA98_750UTM is a digital bathymetric surface grid of the seafloor offthe coast of Washington and Oregon. Grid cell spacing is 750m and theprojection is UTM Zone 10.The surface grid was produced by merging National Ocean Service (NOS)Hydrographic Surveys conducted between 1926 and 1974 (primarily 1926to 1930) with recent surveys conducted by the U.S. Army Corps of Engineers(USACE) in 1998 around the entrances to Grays Harbor, Willapa Bay, and theColumbia River. The results of this work represent the best availableestimate of the seafloor morphology for the time period circa 1998. Theuser is cautioned, however, to use this data set with full knowledge ofthe original intent, the limitations, and assumptions used...
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ORWA26_750UTM is a digital bathymetric surface grid of the seafloor offthe coast of Washington and Oregon. Grid cell spacing is 500m and theprojection is UTM Zone 10.The surface was produced by gridding National Ocean Service (NOS)Hydrographic Surveys collected between 1926 and 1974 (primarily1926 to 1930). This work includes the most recent bathymetric dataavailable on a regional scale over the inner to outer continental shelfoff the coast of Washington and Oregon. The results represent thebest available estimate of the seafloor morphology for the time periodcirca 1926.
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ORWA98_500UTM is a digital bathymetric surface grid of the seafloor offthe coast of Washington and Oregon. Grid cell spacing is 500m and theprojection is UTM Zone 10.The surface grid was produced by merging National Ocean Service (NOS)Hydrographic Surveys collected between 1926 and 1974 (primarily 1926to 1930) with recent surveys conducted by the U.S. Army Corps of Engineers(USACE) in 1998 around the entrances to Grays Harbor, Willapa Bay, and theColumbia River. The results of this work represent the best availableestimate of the seafloor morphology for the time period circa 1998. Theuser is cautioned, however, to use this data set with full knowledge ofthe original intent, the limitations, and assumptions used...


    map background search result map search result map CRLS98014 sidescan-sonar track lines SWWA26_750UTM: Southwest Washington 750 meter, 1926 Bathymetry Grid; UTM Projection NEST98PTS_UTM: Modern digital hydrographic and bathymetric datapoints from the coast of southwest Washington and northwest Oregon ORWA26_500UTM: Oregon/Washington 500 meter, 1926 Bathymetry Grid;UTM Projection ORWA26_750UTM: Oregon/Washington 750 meter, 1926 Bathymetry Grid;UTM Projection ORWA26PTS_UTM: Historical digital hydrographic and bathymetric datapoints from the coast of southwest Washington and northwest Oregon ORWA98_500UTM: Oregon/Washington 500 meter, 1926/1998 BathymetryGrid; UTM Projection ORWA98_750UTM: Oregon/Washington 750 meter, 1926/1998 BathymetryGrid; UTM Projection SWWA26_500UTM: Southwest Washington 500 meter, 1926 BathymetryGrid; UTM Projection SWWA26_750UTM: Southwest Washington 750 meter, 1926 BathymetryGrid; UTM Projection SWWA26PTS_UTM: Historical digital hydrographic and bathymetric datapoints from the coast of southwest Washington and northwest Oregon SWWA98_500UTM: Southwest Washington, 500 meter,1926/1998 Bathymetry Grid, UTM Projection SWWA98_750UTM: Southwest Washington, 750 meter,1926/1998 Bathymetry Grid; UTM Projection WA Short Term Shoreline Change WA Long Term Shoreline Change High-Resolution Aeromagnetic Survey of the Centralia Area, Southwest Washington Data compiled from stratigraphic and tree-ring studies of late Holocene earthquakes and tsunamis at Copalis River, Grays Harbor, Willapa Bay, and Columbia River, Washington and Oregon NEST98PTS_UTM: Modern digital hydrographic and bathymetric datapoints from the coast of southwest Washington and northwest Oregon SWWA26_500UTM: Southwest Washington 500 meter, 1926 BathymetryGrid; UTM Projection SWWA98_500UTM: Southwest Washington, 500 meter,1926/1998 Bathymetry Grid, UTM Projection SWWA26_750UTM: Southwest Washington 750 meter, 1926 BathymetryGrid; UTM Projection SWWA98_750UTM: Southwest Washington, 750 meter,1926/1998 Bathymetry Grid; UTM Projection SWWA26_750UTM: Southwest Washington 750 meter, 1926 Bathymetry Grid; UTM Projection Data compiled from stratigraphic and tree-ring studies of late Holocene earthquakes and tsunamis at Copalis River, Grays Harbor, Willapa Bay, and Columbia River, Washington and Oregon CRLS98014 sidescan-sonar track lines WA Short Term Shoreline Change WA Long Term Shoreline Change High-Resolution Aeromagnetic Survey of the Centralia Area, Southwest Washington SWWA26PTS_UTM: Historical digital hydrographic and bathymetric datapoints from the coast of southwest Washington and northwest Oregon ORWA26PTS_UTM: Historical digital hydrographic and bathymetric datapoints from the coast of southwest Washington and northwest Oregon ORWA26_500UTM: Oregon/Washington 500 meter, 1926 Bathymetry Grid;UTM Projection ORWA98_500UTM: Oregon/Washington 500 meter, 1926/1998 BathymetryGrid; UTM Projection ORWA26_750UTM: Oregon/Washington 750 meter, 1926 Bathymetry Grid;UTM Projection ORWA98_750UTM: Oregon/Washington 750 meter, 1926/1998 BathymetryGrid; UTM Projection