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These topographic/bathymetric digital elevation models (DEMs) were collected and compiled to characterize erosion and deposition in the Colorado River and in an adjacent zone of laterally recirculating flow (eddy) during both average flow conditions and during a controlled flood that occurred in March 2008. The objectives of the study were to measure changes sandbar morphology that occurred during changes in discharge associated with the controlled flood. These data were collected between February 6 and March 31, 2008 in a 1-mile study reach on the Colorado River within Grand Canyon National Park beginning 44.5 miles downstream from Lees Ferry, Arizona. These data were collected by the USGS Grand Canyon Monitoring...
Tags: Arizona, Colorado River, Eminence Break, Eminence Break field site, Glen Canyon Dam, All tags...
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These data were compiled to accompany flow modeling work on Kanab Creek near the mouth (USGS gage 09403850). The data include topographic data collected by a remote sensing detection light detection and ranging (LIDAR) system and surveying total station in June 2017, high water marks from six floods from 2011 to 2013, and control points and gage structures. Topographic data include ground topography collected by LIDAR and channel bathymetry collected by total station survey of a 600 meter reach of Kanab Creek, ending at the confluence with the Colorado River in Grand Canyon, Arizona. High water mark data include sets from six floods collected by USGS personnel using total station surveys.
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This data set contains the sea floor topographic contours,sun-illuminated topographic imagery, and backscatterintensity generated from a multibeam sonar survey of theStellwagen Bank National Marine Sanctuary region off Boston,Massachusetts, an area of approximately 1100 square nauticalmiles. The Stellwagen Bank NMS Mapping Project is designed toprovide detailed maps of the Stellwagen Bank region'senvironments and habitats and the first complete multibeamtopographic and sea floor characterization maps of asignificant region of the shallow EEZ.Data were collected on four cruises over atwo year period from the fall of 1994 to the fall of 1996.The surveys were conducted aboard the Candian HydrographicService vessel...
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These data consist of rectified aerial photographs, measurements of active channel width, measurements of river and floodplain bathymetry and topography, and ancillary data. These data are specific to the corridor of the Colorado River in Canyonlands National Park between Potash, Utah and the confluence of the Green and Colorado Rivers near Spanish Bottom, Utah. The time period for these data are 1940 to 2018. The shapefile data are measurements of features of the active river channel and floodplains of the Colorado River. The raster data are aerial images and digital elevation models (DEMs) for segments of the Colorado River in Canyonlands National Park, Utah. The aerial images depict the river channel and adjacent...
These data consist of measurements of riverbed and floodplain bathymetry and topography, measurements of water-surface elevations and ancillary data. These data are specific to the corridor of the Colorado River from the confluence of the Green and Colorado Rivers near Spanish Bottom, Utah in Canyonlands National Park to the confluence with the Dirty Devil River in Glen Canyon National Recreation Area. The time period for these data are 2020 and 2021. The raster data are digital elevation models (DEMs) for segments of the Colorado River in Canyonlands National Park, Utah and include both bathymetric and topographic data. The data collected in 2020 consist of bathymetric and topographic data for segments of the Colorado...
Tags: Arizona, Canyonlands National Park, Cataract Canyon, Colorado River, Dirty Devil River, All tags...
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This data set includes topography and backscatter intensity of the sea floor of the Hudson Shelf Valley, located offshore of New York and New Jersey. The data were collected with a multibeam sea floor mapping system on surveys conducted November 23 - December 3, 1996, October 26 - November 11, 1998, and April 6 - 30, 2000. The surveys were conducted using a Simrad EM 1000 multibeam echo sounder mounted aboard the Canadian Hydrographic Service vessel Frederick G. Creed. This multibeam system utilizes 60 electronically aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth (swath width of 100 to 200 m within the survey area). Maps derived from the...
Tags: Atlantic Ocean, Backscatter intensity, Bathymetry, Bottom photography, Contaminated sediments, All tags...
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This data set includes topography and backscatter intensity of the sea floor of the Historic Area Remediation Site (HARS), located offshore of New York and New Jersey. The data were collected with a multibeam sea floor mapping system on surveys conducted November 23 - December 3, 1996, October 26 - November 11, 1998, and April 6 - 30, 2000. The surveys were conducted using a Simrad EM 1000 multibeam echo sounder mounted aboard the Canadian Hydrographic Service vessel Frederick G. Creed. This multibeam system utilizes 60 electronically aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth (swath width of 100 to 200 m within the survey area). The...
Tags: Atlantic Ocean, Backscatter intensity, Bathymetry, Bottom photography, Contaminated sediments, All tags...
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These data were compiled to accompany flow modeling work on Little Colorado river above the mouth (USGS gage 09402300). The data include topographic data collected by LIDAR and total station in June 2017, high water marks from nine historic floods, and control points and gage structures. Topographic data include ground topography collected by LIDAR and channel bathymetry collected by total station survey of a 2500 meter reach of the Little Colorado River ending near the confluence with the Colorado River. High water mark data were collected by USGS personnel using total station surveys and are divided into nine distinct sets based on elevation profile.


    map background search result map search result map Sea floor maps showing topography, sun-illuminated topographicimagery, and backscatter intensity of the Stellwagen Bank NationalMarine Sanctuary Region off Boston, Massachusetts Sea floor topography and backscatter intensity of the historic area remediation site Sea floor topography and backscatter intensity of the Hudson Shelf Valley Region. Station, sample, video, and photo loctions in the New York Bight Geomorphic Change-Sediment Transport Data for Kanab Creek, Arizona USA Geomorphic Change-Sediment Transport Data for the Little Colorado River, Arizona, USA Digital Elevation Models (DEM) Data Aerial images, digital elevation models, channel width maps, and river metrics along the Colorado River in Canyonlands National Park, Utah (1940 - 2018) Digital elevation models and water surface profiles for the Colorado River in Cataract Canyon, Canyonlands National Park and Glen Canyon National Recreation Area, Utah Geomorphic Change-Sediment Transport Data for the Little Colorado River, Arizona, USA Digital elevation models and water surface profiles for the Colorado River in Cataract Canyon, Canyonlands National Park and Glen Canyon National Recreation Area, Utah Sea floor maps showing topography, sun-illuminated topographicimagery, and backscatter intensity of the Stellwagen Bank NationalMarine Sanctuary Region off Boston, Massachusetts Station, sample, video, and photo loctions in the New York Bight Sea floor topography and backscatter intensity of the Hudson Shelf Valley Region. Aerial images, digital elevation models, channel width maps, and river metrics along the Colorado River in Canyonlands National Park, Utah (1940 - 2018) Geomorphic Change-Sediment Transport Data for Kanab Creek, Arizona USA Digital Elevation Models (DEM) Data