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Coastal and Marine Geology Program > Online Science Resource Locator > Sea-Level Change - Western & Central Gulf of Mexico

Sea-Level Change - Western & Central Gulf of Mexico

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Sea-Level Change:
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Global sea level has always fluctuated depending on the climate. When the climate cools, more ice accumulates at the Earth's poles and sea level drops. When that ice melts, sea level rises. These changes are identifiable in the rock record and ice layers. CMG research aims to understand this cycle and its effects on the marine and coastal environments.
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Global Change Research Program

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

These are results 1 through 24 of 24 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:

Publication
Printable Version - National Assessment of Shoreline Change: Part 1, Historical Shoreline Changes and Associated Coastal Land Loss Along the U.S. Gulf of Mexico - USGS Open File Report 2004-1043
Description: National Assessment of Shoreline Change: Part 1, Historical Shoreline Changes and Associated Coastal Land Loss Along the U.S. Gulf of Mexico is a 44-page, full-color discussion of historical shoreline change and coastal land loss along the U.S. Gulf of Mexico.
updated: 2004-04-14 pages include:

Publication
The National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the U.S. Gulf of Mexico - USGS Open File Report 2004-1089
Description: The Coastal and Marine Geology Program of the U.S. Geological Survey has generated a comprehensive database of digital vector shorelines and shoreline change rates for the U.S. Gulf of Mexico. These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change Project.
updated: 2004-04-14 pages include:

Publication
Evolution and History of Incised Valleys: The Mobile Bay Model - USGS Fact Sheet
Description: Incised valleys along the Gulf coast commonly result from rivers eroding rapidly in response to a fall in sea level. As sea level rises, sediments fill incised valleys and form nearshore elongated sandbodies such as barrier islands. These sandbodies can be potential sites for hard-mineral accumulations and are modern analogues to buried sands in the ancient rock record with high potential of being oil and gas reservoirs. Processes that formed residual sediment accumulations may also help to predict the outcome of man's erosion mitigation and wetland nourishment efforts. Today, the geologic imprint of incised valleys across the continental shelf provides evidence of sea-level change over the past 18,000 years.
updated: 2004-03-02 pages include:

Publication
The Lake Pontchartrain Basin: Louisiana's Troubled Urban Estuary - USGS Fact Sheet
Description: Scientific studies recently begun by the U.S. Geological Survey suggest that several key natural processes and human-induced environmental factors are directly affecting the health of the Lake Pontchartrain Basin, one of America's largest estuaries. An increased knowledge of the critical geologic and estuarine processes affecting the Basin is essential for its management, improving environmental conditions, and mitigating future problems in the region. Such baseline information is of immediate value to planners and decision makers involved in the task of reversing the Basin's environmental degradation and restoring its water and habitat qualities.
updated: 2004-03-02 pages include:

Map
U.S. Geological Survey Digital Data Series 79, >Coastal Erosion and Wetland Change in Louisiana:
Description: Coastal erosion and wetland change in Louisiana
updated: 2003-12-11 pages include:

Publication
USGS Open File Report 03-398
Description: Shoreline change posters for the Louisiana Barrier Islands, 1885 - 1996
updated: 2003-12-02 pages include:

Publication
Primary Causes of Wetland Loss at Madison Bay, Terrebonne Parish, Louisiana - USGS Open File Report 03-060
Description: The Gulf Coast Basin is a region where subsidence and fault activation are common around large, mature oil and gas fields even though moderately deep hydrocarbon production has generally been disregarded as the primary cause. This project will test the hypothesis that long-term, large-volume oil and gas production in the Gulf Coast Basin has resulted in land-surface subsidence and activation of deep-seated faults around some fields.
updated: 2003-03-11 pages include:

Research Project
Subsidence and Sea-Level Rise in Southeastern Louisiana: Implications for Coastal Management and Restoration
Description: The Mississippi River delta plain is subject to the highest rate of relative sea-level rise (3 ft per century) of any region in the Nation largely due to rapid geologic subsidence. This collaborative study is responsible for developing an objective and reliable scientific database on subsidence and sea-level rise by conducting detailed studies within the Mississippi River delta plain.
updated: 2002-12-12 pages include:

Publication
Wetland Subsidence, Fault Reactivation, and Hydrocarbon Production in the U.S. Gulf Coast Region - USGS Fact Sheet 091-01
Description: Wetland losses are so extensive in the Gulf of Mexico Coast region of the United States that they represent critical concerns to government environmental agencies and natural resource managers.
updated: 2002-09-20 pages include:

Publication
Shallow Stratigraphic Evidence of Subsidence and Faulting Induced by Hydrocarbon Production in Coastal Southeast Texas - USGS Open File Report 01-274
Description: Wetland losses and their progressive conversion to open water around producing oil and gas fields in the Gulf Coast region have been attributed to a variety of natural and anthropogenic processes. Three large, mature hydrocarbon fields in coastal southeast Texas were examined to evaluate competing hypotheses of wetland losses and to characterize subaerial and submerged surfaces near reactivated faults and zones of subsidence.
updated: 2002-09-19 pages include:

Research Project
Subsidence and Fault Activation Related to Fluid Energy Production, Gulf Coast Basin
Description: The Gulf Coast Basin is a region where subsidence and fault activation are common around large, mature oil and gas fields even though moderately deep hydrocarbon production has generally been disregarded as the primary cause. This project will test the hypothesis that long-term, large-volume oil and gas production in the Gulf Coast Basin has resulted in land-surface subsidence and activation of deep-seated faults around some fields.
updated: 2002-09-18 pages include:

Publication
Environmental Atlas of the Lake Pontchartrain Basin - USGS Open File Report 02-206
Description: The Environmental Atlas of the Lake Pontchartrain Basin provides citizens, planners, managers, educators, scientists and other professionals with a multidisciplinary and integrated source of information on Lake Pontchartrain and its surrounding Basin.
updated: 2002-05-14 pages include:

Publication
Geomorphic Classification Of Coastal Land Loss Between 1932 And 1990 In The Mississippi River Delta Plain, Southeastern Louisiana
Description: A 34x45 inch Poster (pdf) on changes in part of the low-lying Mississippi delta over a 58 year period.
updated: 2002-04-24 pages include:

Publication
Process Classification Of Coastal Land Loss Between 1932 And 1990 In The Mississippi River Delta Plain, Southeastern Louisiana
Description: Informative poster: 34x45 inches (pdf) on causes and mechanisms of land loss in a low-lying coastal area of the Mississippi delta.
updated: 2002-04-24 pages include:

Publication
Lake Pontchartrain, LA, Geochemistry
Description: Geology, geologic history, sediments, circulation, satellite imagery, of Lake Pontchartrain, LA, and a sediment database and geochemical assessment of the Lake.
updated: 2002-04-23 pages include:

Publication
Assessment of Coastal Vulnerability to Sea-Level Rise: Preliminary Results for the U.S. Gulf of Mexico Coast
Description: This report estimates relative vulnerability to sea-level rise of different coastal environments in the U.S. Gulf of Mexico. This initial classification is based on coastal geomorphology, regional coastal slope, rate of sea-level rise, wave and tide characteristics, and historical shoreline change rates.
updated: 2002-04-23 pages include:

Research Project
Gulf of Mexico and Southeast Tidal Wetlands
Description: This project is investigating the loss of coastal wetlands and adjacent uplands in order to determine long-term change in wetlands and to provide a model for determining areas that are most vulnerable to loss because of combinations of human and natural impacts.
updated: 2001-02-03 pages include:

Publication
Sea-level Rise and Coastal Forests on the Gulf of Mexico - Open File Report 99-441
Description: Sea-level Rise and Coastal Forests on the Gulf of Mexico is a 127-page report discussing the effects of sea-level rise and storm impacts on coastal forests of the Gulf of Mexico. Separate chapters are devoted to non-mangrove and mangrove forests. Information on the responses of individual tree species to increased salinity and flooding is included.
updated: 2000-08-10 pages include:

Research Project
Geologic Framework and Processes of the Lake Pontchartrain Basin
Description: Lake Pontchartrain and adjacent lakes form one of the largest and most important estuaries in the Gulf Coast Region. The estuary drains the Pontchartrain Basin, an area of over 12,000 square kilometers situated on the eastern side of the Mississippi River delta plain. In Louisiana, nearly one-third of the state population lives within the 14 parishes of the Pontchartrain Basin.
updated: 2000-03-15 pages include:

General Information
El Niño Home Page
Description: El Niño information with links to a broad range of topics such as Floods, Landslides, Coastal Hazards, Climate, News Releases.
updated: 2000-01-31 pages include:

Data Set
East Gulf of Mexico Satellite Imagery
Description: Satellite imagery of the eastern Gulf of Mexico, measuring sea surface temperature, reflectance, and altimetry, is taken, processed, and posted in online archives several times per day.
updated: 2000-01-27 pages include:

Educational Materials
About Gas Hydrates and a USGS gas hydrate project
Description: Questions and answers about submarine gas hydrates: an ice-like crystalline solid formed of water and gas that is found in places under the sea floor and has important implications to techniques of deep-sea drilling and future energy supplies.
updated: 1999-03-08 pages include:

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Coastal and Marine Geology Program > Online Science Resource Locator > Sea-Level Change - Western & Central Gulf of Mexico