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These metadata describe bathymetric data collected during a December 2018 SWATHPlus survey of Whiskeytown Lake, California. Data were collected and processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) during fieldwork activity number 2018-686-FA. The bathymetric data are provided as a GeoTIFF image.
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A medium resolution vector map of the Canadian and U.S. Great Lakes and St. Lawrence River shoreline is segmented into reaches and classified using a three tier scheme representing the geomorphic nature of the shoreline, the extent of shoreline protection, and the geomorphic nature of the nearshore subaqueous shoreline.
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These metadata describe bathymetric data collected during a May 2019 SWATHPlus survey of Whiskeytown Lake, California. Data were collected and processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) during fieldwork activity number 2018-686-FA. The bathymetric data are provided as a GeoTIFF image.
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In February 2016 the U.S. Geological Survey, Pacific Coastal and Marine Science Center in cooperation with North Carolina State University and the National Park Service collected multibeam bathymetry and acoustic backscatter data in Lake Crescent located in Olympic National Park, Washington. Data were collected using a Reson 7111 multibeam echosounder pole-mounted to the 36-foot USGS R/V Parke Snavely. These metadata describe the multibeam acoustic-backscatter data file that is included in "LakeCrescent_backscatter_3m_UTM10_NAD83.zip" which is accessible from https://doi.org/10.5066/F7B56GW5.
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A composite map of substrate composition was created from two separate surveys of surficial sediments of Lake Michigan. For Lake Michigan south of Frankfort, a sediment survey map by Powers and Robertson (1968), that essentially corroborated two earlier surveys by Hough (1935) and Ayers and Hough (1963-64), was used. Sediment composition of Lake Michigan north of Pentwater was available from unpublished Lake Survey data of NOS-NOAA (Great Lakes Basin Framework Study 1976). We created a composite map by overlaying the northern and southern survey maps, and merging areas of like sediment type. Distinctive characteristics iclud hard bottom areas along the southwest shoreline (Milwaukee to Gary, IN), depositional...
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In February 2016 the U.S. Geological Survey, Pacific Coastal and Marine Science Center in cooperation with North Carolina State University and the National Park Service collected multibeam bathymetry and acoustic backscatter data in Lake Crescent located in Olympic National Park, Washington. These data were collected to support geologic hazard studies within the lake including mapping submarine landslides and faulting. Data were collected using a Reson 7111 multibeam echosounder pole-mounted to the 36-foot USGS R/V Parke Snavely. This USGS data release provides the processed bathymetry data in ASCIIRaster format, the acoustic backscatter data in TIFF format, as well as PDF maps of shaded relief bathymetry and acoustic...
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In February 2016 the U.S. Geological Survey, Pacific Coastal and Marine Science Center in cooperation with North Carolina State University and the National Park Service collected multibeam bathymetry and acoustic-backscatter data in Lake Crescent located in Olympic National Park, Washington. Data were collected using a Reson 7111 multibeam echosounder pole-mounted to the 36-foot USGS R/V Parke Snavely. These metadata describe the multibeam bathymetry raster data file that is included in "LakeCrescent_bathy_3m_UTM10_NAD83_NAVD88.zip" which is accessible from https://doi.org/10.5066/F7B56GW5.


    map background search result map search result map Lake Michigan, USA: substrate classes Lake Michigan, USA: shoreclass (National Oceanic and Atmospheric Administration (NOAA)) Multibeam bathymetry and acoustic backscatter data collected in 2016 for Lake Crescent, Olympic National Park, Washington Bathymetric data for Whiskeytown Lake, December 2018 Bathymetric data for Whiskeytown Lake, May 2019 Multibeam bathymetry data collected in 2016 for Lake Crescent in Olympic National Park, Washington Multibeam acoustic-backscatter data collected in 2016 for Lake Crescent, Olympic National Park, Washington Bathymetric data for Whiskeytown Lake, December 2018 Bathymetric data for Whiskeytown Lake, May 2019 Lake Michigan, USA: substrate classes Lake Michigan, USA: shoreclass (National Oceanic and Atmospheric Administration (NOAA))