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Coastal and Marine Geology Program > Online Science Resource Locator > Pacific Northwest

Pacific Northwest

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Items below are listed from most recently updated to least recently updated.

These are results 1 through 25 of 35 matches.

Research Project
National Assessment of Shoreline Change Project
Description: Beach erosion is a chronic problem along most open-ocean shores of the United States. As coastal populations continue to grow, and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding past and present shoreline changes. There is also need for a comprehensive analysis of shoreline movement that is regionally consistent. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is conducting an analysis of historical shoreline changes along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii. A primary goal of this work is to develop standardized methods for mapping and analyzing shoreline movement so that internally consistent updates can periodically be made to record shoreline erosion and accretion.
updated: 2004-07-21 pages include:

Research Project
National Assessment of Coastal Change Hazards
Description: The National Assessment of Coastal Change Hazards is a multi-year undertaking to identify and quantify the vulnerability of U.S. shorelines to coastal change hazards such as the effects of severe storms, sea-level rise, and shoreline erosion and retreat. It will continue to improve our understanding of processes that control these hazards, and will allow researchers to determine the probability of coastal change locally, regionally, and nationally. The Assessment will deliver these data and assessment findings about coastal vulnerability to coastal managers, other researchers, and the general public.
updated: 2004-06-10 pages include:

Research Project
Marine Aggregate Resources and Processes
Description: The Marine Aggregates (Sand and Gravel Assessment) Project has developed and is implementing a scientifically rigorous series of regional studies mapping the seafloor sedimentary character and assessing marine sand and gravel resources around the United States. Results of the regional assessments will ultimately comprise a national assessment of marine sand and gravel. This study is responding to increasing demand for web-accessible GIS-type data and interpreted geologic map information on the sedimentary character of the seafloor and aggregate resources suitable for beach nourishment and coastal restoration, as well as seafloor sediment texture information for benthic habitat mapping and sediment transport studies.
updated: 2004-05-07 pages include:

General Information
U.S. Geological Survey Open-File Report 2004-1021, Coastal Vulnerability Assessment of Olympic National Park to Sea-Level Rise, Title Page
Description: Coastal Vulnerability Assessment of Olympic National Park to Sea-Level Rise.
updated: 2004-04-05 pages include:

Publication
Crater Lake National Park: Presently Tranquil - USGS Fact Sheet
Description: Are volcanic eruptions likely again at Crater Lake? One of the approaches U.S. Geological Survey scientists are using to answer this important question is to unravel the geologic history of the Crater Lake caldera floor.
updated: 2004-03-02 pages include:

Publication
The Escanaba Trough of Gorda Ridge: A Laboratory for Mineral-forming Processes - USGS Fact Sheet
Description: The Gorda Ridge is a unique geological system in the Exclusive Economic Zone of the United States. This tectonically and volcanically active plate boundary has an unusual morphology for spreading centers in the Pacific Ocean: a deep, wide axial valley flanked by high ridges. Because of its location near the continental margin, part of the axial valley known as the Escanaba Trough is covered by sediment. The Escanaba Trough provides opportunities for scientists to learn details about tectonics, volcanism, mineral formation, and biological activity that are not normally observed at mid-ocean ridges. It is a geological laboratory of grand proportions.
updated: 2004-03-02 pages include:

Publication
Investigating Climate Change of Western North America - USGS Fact Sheet
Description: The strength and position of the California Current drives the climate of the western United States. When global climate changed, the California Current should have been affected in such a way that evidence of change should be seen in 'proxy' data. If we can see how oceans respond to climate change, we can then infer how the atmosphere has reacted through time. The U.S. Geological Survey is examining a variety of proxy data from western North America and the eastern North Pacific Ocean that might give climate models added validity.
updated: 2004-03-02 pages include:

Research Project
Hurricane and Extreme Storm Impact Studies
Description: This project investigates the coastal impacts of hurricanes and extreme storms, such as Hurricanes Isabel (2003), Dennis (1999), Bonnie & Georges (1998), and winter storms, such as those associated with the 1997-98 El Niño.
updated: 2003-10-31 pages include:

Research Project
Pacific Sea-Floor Mapping
Description: Images of the sea floor off the coasts of California, Hawaii, Gulf of Mexico, and Lake Tahoe. Backscatter and swath bathymetry, regular and in 3-D!
updated: 2003-10-29 pages include:

Publication
USGS OFR 03-190 - Diatom Data from Bradley Lake, Oregon: Downcore Analyses
Description: Displaced marine diatoms provide biostratigraphic evidence for tsunami inundation at Bradley Lake, a small freshwater lake on the south-central Oregon coast.
updated: 2003-10-29 pages include:

Publication
USGS I Map 2790 - Crater Lake Revealed
Description: Recently, the bottom of Crater Lake, Oregon was mapped with a high-resolution multibeam echo sounder. The new bathymetric survey provides a 2m/pixel view of the lake floor from its deepest basins virtually to the shoreline. Using Geographic Information Systems (GIS) applications, the bathymetry data can be visualized and analyzed to shed light on the geology, geomorphology, and geologic history of Crater Lake.
updated: 2003-10-01 pages include:

Publication
An Overview of Coastal Land Loss: With Emphasis on the Southeastern United States
Description: In states bordering the Gulf of Mexico and the Atlantic Ocean, vast areas of coastal land have been destroyed since the mid 1800s as a result of natural processes and human activities. The physical factors that have the greatest influence on coastal land loss are reductions in sediment supply, relative sea level rise, and frequent storms, whereas the most important human activities are sediment excavation, river modification, and coastal construction. As a result of these agents and activities, coastal land loss is manifested most commonly as beach/bluff erosion and coastal submergence.
updated: 2003-08-20 pages include:

Research Project
Coastal and Marine Knowledge Bank Project
Description: USGS scientists are faced with many challenges created by the Information Revolution. One of the greatest challenges is to use and preserve data, information, and knowledge for the benefit of society. The USGS Coastal and Marine Geology Program (CMGP) meets this challenge with the development of a Coastal and Marine Knowledge Bank.
updated: 2003-07-03 pages include:

Publication
Exposing the Sea Floor: High-Resolution Multibeam Mapping Along the U.S. Pacific Coast, USGS Fact Sheet 013-00
Description: PDF file
updated: 2003-03-18 pages include:

Publication
USGS OFR 03-13 - Cascadia Tsunami Deposit Database
Description: The Cascadia Tsunami Deposit Database contains data on the location and sedimentological properties of tsunami deposits found along the Cascadia margin. Data have been compiled from 52 studies, documenting 59 sites from northern California to Vancouver Island, British Columbia that contain known or potential tsunami deposits. Bibliographical references are provided for all sites included in the database. Cascadia tsunami deposits are usually seen as anomalous sand layers in coastal marsh or lake sediments. The studies cited in the database use numerous criteria based on sedimentary characteristics to distinguish tsunami deposits from sand layers deposited by other processes, such as river flooding and storm surges. Several studies cited in the database contain evidence for more than one tsunami at a site. Data categories include age, thickness, layering, grainsize, and other sedimentological characteristics of Cascadia tsunami deposits. The database documents the variability observed in tsunami deposits found along the Cascadia margin.
updated: 2003-01-01 pages include:

Photographs
USGS Professional Paper 1386-J
Description: Landsat images, together with aerial photographs, selected maps, and other data, have been used to provide a baseline of mid-1970's glacierization in Canada, the conterminous United States, and México
updated: 2002-12-30 pages include:

Publication
Holocene Evolution of the Southern Washington and Northern Oregon Shelf and Coast: Geologic Discussion and GIS Data Release, Open File Report 01-076
Description: Holocene Evolution of the Southern Washington and Northern Oregon Shelf and Coast: Geologic Discussion and GIS Data Release
updated: 2002-06-14 pages include:

Publication
Sidescan-sonar Imagery, Surface Sediment Samples, and Surficial Geologic Interpretation of the Southwestern Washington Inner Continental Shelf Based on Data Collected During Corliss Cruises 97007 and 98014
Description: The sidescan-sonar imagery and surface sediment samples have been used to map the surficial geology of this storm-dominated inner-shelf environment. Includes data in GIS files.
updated: 2002-04-24 pages include:

Movie
Online Mini-Documentary Movie - The Effects of Globally Transported African and Asian Dust on Coral Reef and Human Health
Description: "The Effects of Globally Transported African and Asian Dust on Coral Reef and Human Health" is an eight minute mini-documentary featuring biologist Ginger Garrison, geologist Gene Shinn, chemist Chuck Holmes, and microbiologist Dale Griffin as they explain the deterioration of Caribbean coral health over the past several decades, and how unlocking the key role of trans-Atlantic dust transport has opened the door to understanding the effects and implications of this global phenomenon. Narrated by geologist Terry Edgar.
updated: 2001-11-08 pages include:

Educational Materials
Mapping Coastal Change Hazards
Description: An illustrated discussion of coastal change hazards and the work that the U.S. Geological Survey is doing to map and understand these hazards.
updated: 2001-05-03 pages include:

Research Project
1998 Earthquake Hazards Investigation in Puget Sound, Washington
Description: Seismic hazards investigation in Puget Sound to provide public information for mitigating a potential earthquake disaster in the Pacific Northwest.
updated: 2001-03-08 pages include:

Data Set
Global Inventory of Natural Gas Hydrate Occurance
Description: This updated global inventory reports on natural gas hydrate recovered from 20 places worldwide and includes 79 places where the presence of gas hydrate has been inferred from geophysical, geochemical, or geological evidence.
updated: 2001-01-09 pages include:

General Information
Education and Outreach Information
Description: Helpful information about Activities at the USGS Western Region Coastal and Marine Geology Team.
updated: 2000-11-20 pages include:

Research Project
Remote Video Monitoring
Description: Remote Video Monitoring (RVM) systems provide a means of automatically acquiring video data from remote locations and returning them to a central laboratory computer for processing. This project makes use of RVM technology to monitor coastal change at locations in Florida, Massachusetts, Ohio, and Washington.
updated: 2000-10-02 pages include:

Research Project
Tectonic Stress in the Pacific Northwest
Description: Studies of the Cascadia Megathrust and Tectonic Stress in the Pacific Northwest
updated: 2000-08-28 pages include:

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Coastal and Marine Geology Program > Online Science Resource Locator > Pacific Northwest