Coastal and Marine Hazards and Resources Program

Filter Total Items: 286
Date published: February 14, 2020
Status: Active

Coastal Change at Fire Island, a geonarrative

Approximately 60 miles from the skyscrapers and fast-pace of New York City, Fire Island stretches 31 miles along the south shore of Long Island. The sandy beaches and pristine wilderness areas of Fire Island National Seashore are dotted with secluded residential communities. The island is fronted by the Atlantic Ocean, so in addition to its natural and recreational value, Fire Island is also...

Date published: February 14, 2020
Status: Active

Climate impacts to Arctic coasts

The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.

Date published: February 7, 2020
Status: Completed

USGS science supporting the Elwha River Restoration Project

The Elwha River Restoration Project...

... has reconnected the water, salmon, and sediment of a pristine river and coast of the Olympic Peninsula of Washington. Coordinated by the National Park Service, restoration of the Elwha River included the removal of two large dams that had blocked salmon and sediment passage for almost 100 years. The largest dam removal in U.S. history began in...

Date published: February 5, 2020
Status: Active

Submarine Groundwater Discharge

We define submarine groundwater discharge (SGD) to consist either of fresh groundwater, re-circulated seawater, or a composite thereof. We evaluate and present SGD in terms of a vector for nutrient delivery to coastal waters.

Date published: January 7, 2020
Status: Active

The Influence of Aerosols on Harmful Algal Toxin Production and Maintenance

The primary objective of this study is to determine what aerosol events (desert dust storms, volcanic eruptions, fires) or pathways contribute to the propagation of harmful algal toxins. This study provides insight into what type of aerosol events contribute to harmful algal blooms.

Date published: January 2, 2020
Status: Active

California Seafloor and Coastal Mapping Program

A Foundation for Characterizing Hazards, Monitoring Change, and Managing Resources

Date published: December 31, 2019
Status: Active

California Seafloor Mapping Program mapping progress

Table shows USGS California Seafloor Mapping Program progress by block number, as of August 2019.

Date published: December 31, 2019
Status: Active

Marine Geomorphology, Evolution, and Habitats

Seafloor resource managers and modelers need seafloor maps that can be combined in GIS, modeling, and statistical analysis environments and related successfully to biologic and oceanographic data. The Marine Geomorphology, Evolution, and Habitats Project encompasses mapping activities and the development of new mapping systems and methodologies. The emphasis is on the role of geologic...

Date published: December 13, 2019
Status: Active

Using Video Imagery to Study Head of the Meadow Beach

Two video cameras are mounted on a bluff near Head of the Meadow Beach, Cape Cod National Seashore, North Truro, MA. One camera looks alongshore toward the north-northeast, and the second looks directly offshore (northeast). The cameras are part of a U.S. Geological Survey research project to study the beach and nearshore environment shared by beachgoers, shorebirds, seals, and sharks. The...

Date published: December 11, 2019
Status: Completed

Tsunami Record from the Great 1906 San Francisco Earthquake

Shortly after the Great San Francisco earthquake of April 18, 1906, a sea level disturbance (tsunami) was recorded at the Presidio tide gauge station in San Francisco (the station is now located nearby at Ft. Point). What type of mechanism (earthquake rupture, landslide, other) generated the tsunami...

Contacts: Eric Geist