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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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This data release presents beach topography and nearshore bathymetry data from repeated surveys in northern Monterey Bay, California to document changes in shoreline position and coastal morphology as they relate to episodic (storms), seasonal, and interannual and longer (e.g. El Niño) processes. The ongoing monitoring program was initiated in October 2014 with semi-annual surveys performed in late summer (September or October) and Spring (March). Nearshore bathymetry and topography data were collected along a series of shore-perpendicular transects spaced primarily at 50-250 m intervals between Santa Cruz and Moss Landing, California (fig. 1). The transects were located along sandy stretches of the coastline...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Bathymetry and Elevation,
CMGP,
Coastal and Marine Geology Program,
Echo Sounders,
GPS (Global Positioning System), All tags...
GPS measurement,
Geophysics,
Global Positioning System (GPS) observations,
LIDAR,
Monterey Bay,
Monterey County,
PCMSC,
Pacific Coastal and Marine Science Center,
Pacific Ocean,
Santa Cruz County,
U.S. Geological Survey,
USGS,
Water Depth,
bathymetry,
bathymetry measurement,
coastal sediment budget,
digital elevation models,
elevation,
single-beam echo sounder,
topographic mapping,
topography, Fewer tags
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This part of the data release is a spreadsheet including the name, location, and length of sediment cores collected in 2009 offshore from Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute’s remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC)....
Categories: Data;
Tags: Distributions,
Holocene,
Los Angeles,
Palos Verdes Peninsula,
Pleistocene, All tags...
Quaternary,
San Gabriel Canyon,
Substrate,
geoscientificInformation,
gravity coring,
ocean processes,
oceans,
sediment,
sediment composition,
sediment transport,
sediment transport,
sedimentation, Fewer tags
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Water quality in the Barnegat Bay estuary along the New Jersey coast is the focus of a multidisciplinary research project begun in 2011 by the U.S. Geological Survey (USGS) in cooperation with the New Jersey Department of Environmental Protection. This narrow estuary is the drainage for the Barnegat Bay watershed and flushed by just three inlets connecting it to the Atlantic Ocean, is experiencing degraded water quality, algal blooms, loss of seagrass, and increases in oxygen-depletion events. The scale of the estuary and the scope of the problems within it required a regional approach to understand and model water circulation within the bay and adjacent ocean. A continuous elevation surface (terrain model) integrating...
Tags: Barnegat Bay,
Barnegat Inlet,
Beach Haven,
EAARL-B,
Forked River, All tags...
Great Bay,
Little Egg Harbor,
Little Egg Inlet,
Long Beach,
Manahawkin Bay,
Manasquan,
Manasquan Inlet,
Mantoloking,
Metedeconk River,
NED,
NOS,
National Elevation Dataset,
National Ocean Service,
Point Pleasant,
Seaside Heights,
State of New Jersey,
Swath bathymetry,
Terrain Model,
Toms River,
Tuckerton,
U.S. Geological Survey,
USGS,
United States of America,
boundaries,
circulation modeling,
geospatial datasets,
inlandWaters,
oceans,
study areas, 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...
Tags: Atlantic Coast,
Coastal and Marine Geology Program,
DSAS,
Database IV format,
Digital Shoreline Analysis System, All tags...
MA CZM,
MHW,
Massachusetts,
Massachusetts Coastal Zone Management,
Massachusetts Shoreline Change Project,
Mean High Water,
National Assessment of Shoreline Change Project,
New England,
Shoreline,
Shoreline Change,
South Shore,
U.S. Geological Survey,
USGS,
United States,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
coastal processes,
environment,
geoscientificInformation,
lidar uncertainty,
oceans,
statistical analysis, Fewer tags
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