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High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic...
Tags: BOEM,
Bureau of Ocean Energy Management,
CMGP,
Coastal and Marine Geology Program,
Gulf of Mexico, All tags...
Marine Geology,
Mississippi River Delta front,
Pass a Loutre,
Remote Sensing,
South Pass,
Southeast Louisiana,
Southwest Pass,
U.S. Geological Survey,
USGS,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
bathymetry,
boomer,
chirp,
field activity number 2017-003-FA,
marine geology,
marine geophysics,
multi-channel streamer,
multibeam sonar,
navigational data,
ocean sciences,
sea floor,
sea-floor acoustic reflectivity,
seismic reflection methods,
sound velocity profiles,
sparker, Fewer tags
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High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: BOEM,
Bureau of Ocean Energy Management,
CMGP,
Coastal and Marine Geology Program,
Gulf of Mexico, All tags...
Marine Geology,
Mississippi River Delta front,
Pass a Loutre,
Reson,
South Pass,
Southeast Louisiana,
Southwest Pass,
T20P,
U.S. Geological Survey,
USGS,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
backscatter,
bathymetry,
bathymetry,
field activity number 2017-003-FA,
geoscientificInformation,
location,
marine geology,
marine geophysics,
multibeam backscatter,
multibeam bathymetry,
multibeam echosounder,
multibeam sonar,
navigational data,
oceans,
sea-floor acoustic reflectivity,
shapefile,
trackline navigation, Fewer tags
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We used the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST; Warner and others, 2010) model to simulate ocean circulation, waves, and sediment transport in Barnegat Bay, New Jersey, during Hurricane Sandy. The simulation period was from October 27 to November 4, 2012. Initial conditions for the salinity and temperature fields in the domain were acquired from a 7-month simulation of the same domain (Defne and Ganju, 2018). We used a 2012 digital terrain model (Andrews and others, 2015) to prescribe the prestorm bathymetry. Wetting and drying was enabled, wave-current interaction was modeled with a boundary-layer formulation accounting for the apparent roughness of waves, and the vortex force formulation...
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High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Antelope Canyon,
BOR,
Bullfrog,
Bullfrog Bay,
Bureau of Reclamation, All tags...
CMGP,
CRSP,
Coastal and Marine Geology Program,
Coconino County,
Colorado River,
Colorado River Storage Project,
DOI,
Dangling Rope,
Department of the Interior,
Escalante River,
Friendship Bay,
Garfield County,
GeoTIFF,
Glen Canyon,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Good Hope Bay,
Great Bend,
Gunsight Bay,
Halls Bay,
Halls Crossing,
Hite,
Kane County,
Lake Powell,
Last Chance Bay,
NPS,
National Park Service,
Navajo Canyon,
Padre Bay,
Page,
R/V Stephens,
Rainbow Bridge National Monument,
Rock Creek Bay,
San Juan County,
San Juan River,
State of Arizona,
State of Utah,
T20-P,
U.S. Geological Survey,
USGS,
UWSC,
United States of America,
Utah Water Science Center,
WHCMSC,
Wahweap,
Wahweap Bay,
Warm Creek Bay,
Woods Hole Coastal and Marine Science Center,
backscatter,
field activity number 2017-049-FA,
geology,
geophysics,
geoscientificInformation,
geospatial datasets,
imageryBaseMapsEarthCover,
inlandWaters,
lakebed acoustic reflectivity,
lakebed characteristics,
multibeam backscatter,
multibeam echosounder,
multibeam sonar,
time-series, Fewer tags
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The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. The shoreline position and change rate are used to inform management decisions regarding the erosion of coastal resources. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. In 2013 two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from NOAA's Ocean Service, Coastal Services Center. This 2018 update includes two new mean high water (MHW) shorelines for the Massachusetts...
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