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Coastal and Marine Geology Program > Online Science Resource Locator > Caribbean

Caribbean

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These are results 1 through 25 of 31 matches.

Publication
USGS Open-File Report 2005-1066, Project PROBE Leg I, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 02051, Puerto Rico Trench, September 24-30, 2002, title page
Description: This report contains the documentation and raw data files that were collected between 24 September and 10 September 2002 as part of USGS Cruise 02051 (NOAA Cruise RB0208). It includes archive files of Multibeam Bathymetry and Acoustic Backscatter, CTD/XBT and GPS navigation that were collected in the process of mapping the Puerto Rico Trench.
updated: 2008-02-01 pages include:

Publication
USGS FS 2007-3065 --- Kellogg
Description: Coral disease is a major cause of reef decline in the Florida Keys. Bacterium has been defined as the most common pathogen (disease-causing organism). Although much is being done to catalog coral diseases, map their locations, determine the causes of disease, or measure the rates of coral demise, very little research has been directed toward actually preventing or eliminating the diseases affecting coral and coral reef decline.
updated: 2008-02-01 pages include:

Research Project
Coastal Change Hazards: Hurricanes and Extreme Storms
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: 2008-01-16 pages include:

Educational Materials
USGS Coastal Change Hazards
Description: USGS Coastal Change Hazards - Focuses on hurricanes, tsunamis, sea-level rise, shoreline erosion, wetland destruction, and other issues relevant to coastal zone management and disaster preparedness.
updated: 2008-01-01 pages include:

Educational Materials
Coastal and Marine Knowledge Bank
Description: An initiative to develop and present a national-scale, interdisciplinary scientific framework for marine environments, the coastal zone, and coastal watersheds
updated: 2007-11-28 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: 2007-09-30 pages include:

Publication
Open-File Report 2006-1293 - Reconnaissance Investigation of Caribbean Extreme Wave Deposits; Preliminary Observations, Interpretations, and Research Directions
Description: his report presents an overview of preliminary geological investigations and recommended future research activities in the Caribbean region pertaining to coastal hazards with an emphasis on establishing tsunami risk for U.S. territories. Fieldwork was conducted in March 2006 on the islands of Bonaire, Puerto Rico, and Guadeloupe to evaluate the stratigraphic records of extreme wave deposits as possible indicators of paleotsunami recurrence. Morphological, sedimentological, and stratigraphic evidence indicate that shore-parallel coral rubble deposits composed of coarse clasts and sand that are 10s of meters wide and several meters thick are depositional complexes that have accumulated for a few centuries or millennia, and are not entirely the result of one or a few tsunamis as previously reported. The origins of boulder fields on elevated rock platforms of the Caribbean islands are more complicated than the origins of ridge complexes because boulder fields can be constructed by either storm waves or tsunamis. What is needed now for more conclusive interpretations is a systematic sedimentological approach to deposit analysis and a set of criteria for distinguishing between coarse clast storm and tsunami deposits. Assembling more field data from other Caribbean islands, analyzing stratigraphic deposits on Puerto Rico and Bonaire, and investigating boulder field deposits resulting from a historical tsunami can accomplish this. Also needed are improved sediment transport models for coarse clasts that can be used to estimate the competence and capacity of tsunamis and storms waves and to determine whether a deposit likely was created by a tsunami or extreme storm. Improved models may also be useful for reconstructing the magnitude of extreme wave events.
updated: 2006-10-30 pages include:

Publication
U.S. Geological Survey Open-File Report 2004-1416, Coastal Vulnerability Assessment of Dry Tortugas National Park (DRTO) to Sea-Level Rise, Title Page
Description: coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Dry Tortugas National Park in Florida. The CVI ranks the following in terms of their physical contribution to sea-level rise-related coastal change: geomorphology, regional coastal slope, rate of relative sea-level rise, historical shoreline change rates, mean tidal range and mean significant wave height. The rankings for each input variable were combined and an index value calculated for 1-minute grid cells covering the park. The CVI highlights those regions where the physical effects of sea-level rise might be the greatest. This approach combines the coastal system's susceptibility to change with its natural ability to adapt to changing environmental conditions, yielding a quantitative, although relative, measure of the park's natural vulnerability to the effects of sea-level rise. The CVI provides an objective technique for evaluation and long-term planning by scientists and park managers. Dry Tortugas National Park (DRTO) consists of relatively stable to washover-dominated portions of carbonate beach and man-made fortification. The areas within Dry Tortugas that are likely to be most vulnerable to sea-level rise are those with the highest rates of shoreline erosion and the highest wave energy.
updated: 2006-10-20 pages include:

Publication
U.S. Geological Survey Open-File Report 2004-1398, Coastal Vulnerability Assessment of Virgin Islands National Park (VIIS) TO Sea-Level Rise, Title Page
Description: Coastal Vulnerability Assessment of Virgin Islands National Park to Sea-Level Rise.
updated: 2006-10-20 pages include:

Publication
USGS Open-File Report 2004-1400
Description: This report contains the documentation and raw data files that were collected between 18 February and 7 March 2003 as part of USGS Cruise 03008 (NOAA Cruise RB0303). It includes archive files of Swath Bathymetric Sonar, CTD/XBT and GPS navigation that were collected in the process of mapping the Puerto Rico Trench.
updated: 2006-10-20 pages include:

General Information
USGS Coastal and Marine Geology - usSEABED
Description: usSEABED provides data on sediment and rock distributions in the waters off the United States.
updated: 2006-08-28 pages include:

Publication
usSEABED: Gulf of Mexico and Caribbean Offshore Surficial Sediment Data Release, Title Page
Description: usSEABED: Gulf of Mexico and Caribbean (Puerto Rico and U.S. Virgin Islands) Offshore Surficial Sediment Data Release.
updated: 2006-07-18 pages include:

Research Project
Integrated Remote Sensing and Modeling Group
Description: The Integrated Remote Sensing and Modeling Group conducts investigations of the physical structure and ecological function of coastal ecosystems. The scope of IRSMG projects includes wetlands, estuaries, barrier islands, and coral reef ecosystems occurring about the United States and Caribbean coastal fringe. The IRSMG seeks to marry technical advances in remote sensing from satellite, aircraft, and vessel-based platforms with the natural resource management needs of National Seashores, National Parks, marine sanctuaries, and agencies responsible for the environmental health of major estuaries. The applied research activities of the IRSMG aim to incorporate emerging remote sensing methods in the investigation of the community metabolism and habitat complexity of coastal ecosystems.
updated: 2006-04-13 pages include:

Research Project
Research Projects - Tsunami Hazard Potential in the Caribbean
Description: Description of research project.
updated: 2006-04-10 pages include:

Research Project
Coral Mortality and African Dust
Description: Why have coral reefs that are bathed in clear oceanic waters throughout much of the Caribbean suffered algal infestation, coral diseases, and near extinction of herbivorous sea urchins from the 1970s through early 1990s? The best known factors detrimental to coral reefs do not apply for many of the affected reefs where human population is low.
updated: 2006-02-14 pages include:

Research Project
Research Projects: Coastal and Marine Catastrophic Hazards - USGS WCMG
Description: Description of research project.
updated: 2005-07-25 pages include:

Publication
High-Energy Storms Shape Puerto Rico - USGS Fact Sheet
Description: Geologists have known for many years that damage inflicted by hurricanes on coastal areas may be less important for the long-term evolution of a coast than the effects of less intense, but more frequent, storm events. Indeed, high-energy storms may be needed to maintain the health of delicate marine ecologies in the coastal environment. Marine geologists of the U.S. Geological Survey working in Puerto Rico are confident that the long-term effects of Hurricane Hugo on the coastal environment are minimal, though the economic damage was significant. Detailed oceanographic studies are needed to define the sediment budget of the nearshore areas of Puerto Rico and to provide baseline information for studying storm effects.
updated: 2004-03-02 pages include:

Publication
Sand and Gravel Resources of Puerto Rico - USGS Fact Sheet
Description: The sand and gravel resources of Puerto Rico contribute significantly to the economy of the island as they are crucial ingredients in construction and recreation. Despite newly-imposed regulations prohibiting mining of beach sands, the strength of the associated underground economy is sufficiently strong to limit enforcement of the regulations. Consequently, beaches are eroding quickly causing significant damage to the environment and delicate ecosystems. New resources of sand and gravel would allow beaches to be nourished and construction activities to be supplied.
updated: 2004-03-02 pages include:

Publication
U.S. Coral Reefs—Imperiled National Treasures | USGS Fact Sheet 025-02
Description: Coral reefs are home to 25% of all marine species. However, the tiny colonial animals that build these intricate limestone masses are dying at alarming rates. If this trend continues, in 20 years the living corals on many of the world’s reefs will be dead and the ecosystems that depend on them severely damaged. As part of the effort to protect our Nation’s extensive reefs, U.S. Geological Survey (USGS) scientists are working to better understand the processes that affect the health of these ecologically and economically important ecosystems.
updated: 2003-03-18 pages include:

Publication
African Dust Carries Microbes Across the Ocean: Are They Affecting Human and Ecosystem Health? - USGS Open File Report 03-028
Description: A four-page full-color discussion of how atmospheric transport of dust from northwest Africa to the western Atlantic Ocean region may be responsible for a number of environmental hazards, including the demise of Caribbean corals; red tides; amphibian diseases; increased occurrence of asthma in humans; and oxygen depletion (eutrophication) in estuaries.
updated: 2003-02-04 pages include:

Movie
USGS Fact Sheet 095-02: Vulnerability of U.S. National Parks to Sea-Level Rise and Coastal Change
Description: Vulnerability of U.S. National Parks to Sea-Level Rise and Coastal Change
updated: 2002-09-19 pages include:

Movie
Coral Reefs in Honduras: Status after Hurricane Mitch - Online Mini-Documentary Movie
Description: "Coral Reefs in Honduras: Status after Hurricane Mitch" is an eight minute mini-documentary featuring geologist Bob Halley describing the USGS response in the wake of Hurricane Mitch to assess the impact of the storm on Caribbean coral reefs off Honduras. Narrated by geologist Terry Edgar.
updated: 2002-04-05 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:

Publication
Coral Reefs in Honduras: Status after Hurricane Mitch - USGS Open File Report 01-133
Description: In response to the devastation wrought by Hurricane Mitch in Honduras, the United States Geological Survey performed a study to determine the impact the storm had on the coral reef systems of Cayos Cochinos and Roatan, Honduras.
updated: 2001-10-14 pages include:

Publication
Project PROBES (Puerto Rico Ocean Bottom Earthquake Survey), USGS Open-File Report 01-112
Description: Project PROBES: Puerto Rico Ocean Bottom Earthquake Survey, U.S. Geological Survey Open-File Report 01-112
updated: 2001-09-07 pages include:

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Coastal and Marine Geology Program > Online Science Resource Locator > Caribbean