Coastal and Marine Hazards and Resources Program

Filter Total Items: 286
Date published: May 28, 2020
Status: Active

Estuarine and MaRsh Geology Research Project

The goal of the Estuarine and MaRsh Geology (EMRG) Research Project is to study how and where short- and long-term marsh and estuarine coastal processes interact, how they influence coastal accretion or erosion, and how they pre-condition a marsh’s resiliency to storms, sea-level change, and human alterations along the northern Gulf of Mexico (Grand Bay and Point aux Chenes, Mississippi and St...

Date published: May 25, 2020
Status: Active

The Impact of Sea-Level Rise and Climate Change on Pacific Ocean Atolls

Providing basic understanding and specific information on storm-wave inundation of atoll islands that house Department of Defense installations; and assessing the resulting impact of sea-level rise and storm-wave inundation on infrastructure and freshwater availability under a variety of sea-level rise and climatic scenarios....

Contacts: Curt Storlazzi, PhD, Li Erikson, Stephen B Gingerich, Clifford I Voss, Ph.D., Edwin Elias, Peter Swarzenski, Ap van Dongeren, Gregory PIniak, Donald Field, Annamalai Hariharasubramanian, Kevin Hamilton, Yuqing Wang
Date published: May 20, 2020
Status: Active

usSEABED

usSEABED is the collaborative product of the U.S. Geological Survey, the University of Colorado, and other partners, and provides integrated data from small and large marine research efforts by many entities—federal and state agencies, local authorities, universities, as well as private and public consortiums.

Date published: May 20, 2020
Status: Active

Accessing usSEABED

Since the second half of the 20th century, there has been an increase in scientific interest, research effort, and information gathered on the geologic sedimentary character of the continental margins of the United States. Data and information from thousands of sources have increased our scientific understanding of the geologic origins of the margin surface, but rarely have those data been...

Date published: May 20, 2020
Status: Active

usSEABED data format and content

The USGS data release for the usSEABED database enables search and download of six interlinked files of output data and a seventh file that provides linked information about the original data sources. These files can be downloaded in their entirety and are also searchable through an online interface that allows for search and selection either through a GIS display or through a web form. Both...

Date published: May 20, 2020
Status: Active

dbSEABED: Data processing and mining

At the core of usSEABED is dbSEABED, a data-mining program based on the application of fuzzy set theory to marine geological and biological data. Fuzzy set theory allows expansion of coverage of the seafloor by the use of word-based data from core logs, sample descriptions, photos, and videos, as well as the more standard numeric data from a laboratory.

Date published: May 20, 2020
Status: Active

Parsing in dbSEABED

Numeric data mined from verbal logs, core or grab descriptions, shipboard notes, and photographic descriptions are classified as “parsed” data. Input data are maintained using the terms employed by the original researchers and are coded using phonetically sensible terms for easier processing by...

Date published: May 13, 2020
Status: Active

GOMEX box corer

PCMSC uses the GOMEX box corer for collecting soft, deep-water sediment samples.

Date published: May 1, 2020
Status: Active

Offshore Faults along Central and Northern California

From Point Conception to Cape Mendocino, seafloor faults have been, in the past, mapped in varying ways and without enough detail to assess their earthquake potential. To provide this important information, USGS uses advanced technology to image offshore faults that could trigger devastating earthquakes near densely populated areas and a nuclear power plant.

Contacts: Janet Watt
Date published: March 19, 2020
Status: Active

Coastal Sediment Availability and Flux (CSAF)

Sediments are the foundation of coastal systems, including barrier islands. Their behavior is driven by not only sediment availability, but also sediment exchanges between barrier island environments. We collect geophysical, remote sensing, and sediment data to estimate these parameters, which are integrated with models to improve prediction of coastal response to extreme storms and sea-level...

Date published: March 2, 2020
Status: Completed

Using Video Imagery to Study Coastal Change: Sunset State Beach

USGS scientists installed two video cameras overlooking the coast at Sunset State Beach in Watsonville, California, to better understand nearshore processes and how they change seasonally and during storms.