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The goal of this project was to examine how temperature and precipitation could change by the mid 21st century over the greater Los Angeles region. Major findings for temperature are: (1) large variability in the magnitude exists among downscaled global climate model projections over LA, but all predict warming; (2) warming is smaller over the ocean and coastal zone, but larger in the mountain areas and inland; (3) ensemble mean warming in all parts of the domain is significantly outside the range of historical variability, meaning the change will be detectable. Major findings for precipitation are: (1) large variability in both sign and magnitude exists among downscaled global climate model precipitation projections...
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Problem Coastal communities are susceptible to damage from coastal storms and associated storm surge, and although tidal wetlands provide a buffer against shoreline erosion and aid in shoreline stabilization, they too are vulnerable to the action of storms. Tidal wetland dynamics need to be better understood, as they are also intrinsically valuable as nursery, feeding, and refuge areas for many commercial and recreational fisheries, and significantly contribute to the base of the marine food web. Wetlands trap sediments, reduce turbidity, and absorb nutrients and pollutants thereby improving water quality, and they provide many recreational opportunities. Tidal wetland stability needs to be assessed using a sediment...
Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach and Barrier dynamics, Climate and Land-Use Change, Climate and Land-Use Change, Climate and Land-Use Change, Coastal Science, All tags...
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The U.S. Geological Survey (USGS) is collaborating with the New York Department of State (NYDOS) Office of Planning and Development to prepare a new Long Island South Shore Estuary Reserve (SSER) Coordinated Water Resources Monitoring Strategy (CWRMS). Since 2000, when the last CWRMS was published, numerous research projects and studies are demonstrating several new threats to the ecologic health and resilience of the SSER. Contemporary threats include: Eutrophic conditions brought on by high levels of nutrients from sewage treatment plant discharges, stormwater runoff, groundwater seepage, and atmospheric contributions; Increased occurrences of harmful algal blooms in the past 15 years; and, Growing concern...
Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Biogeochemical and Hydrologic Assessment, Biogeochemical and Hydrologic Assessment, BiogeochemicalandHydrologicAssessment, Climate and Land-Use Change, Climate and Land-Use Change, All tags...
Coastal planners and resources managers require information about potential future climate and land-use changes for nearshore areas, in terms that are relevant for the human and natural environments that are likely to be affected by climate change. The collection and synthesis of climate and climate-derived data sets, as well as, land-use and impervious-area data would allow practitioners to analyze and visualize a coastal area's potential impacts caused by future climate and land-use changes. The USGS studies climate and land-changes to provide the tools to understand a changing world and how it impacts our natural resources, our livelihoods, and our communities. Planners and resource managers use a variety of...
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Background The Long Island-New Jersey (LINJ) coastal drainages NAWQA study is one of the 1994 set and is coordinated from our West Trenton, NJ office. Tasks for the first two years, 1994-95, included staffing, developing a liaison process, analyzing existing data, and designing a data collection program that started in 1996. These planning activities lead to the study design for 3 years of intensive data collection in 1996-98. The intensive efforts includes multi-scale study approaches to collect samples of water, suspended and bed sediment, biologic tissues, and aquatic communities. The LINJ NAWQA study is scheduled to enter a low-intensity phase of monitoring and report writing in 1999 and return to another...
Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate and Land-Use Change, Climate and Land-Use Change, Climate and Land-Use Change, Coastal Science, Coastal Science, All tags...


    map background search result map search result map Estuarine Physical Response to Storms—Jamaica Bay Development of a Coordinated Water Resources Monitoring Strategy for the South Shore Estuary Reserve, Long Island NY Long Island-New Jersey (LINJ) Coastal Drainages Study -- Land Use Study (NY) Climate Change in the Los Angeles Region: Temperature and Precipitation Estuarine Physical Response to Storms—Jamaica Bay Development of a Coordinated Water Resources Monitoring Strategy for the South Shore Estuary Reserve, Long Island NY Climate Change in the Los Angeles Region: Temperature and Precipitation Long Island-New Jersey (LINJ) Coastal Drainages Study -- Land Use Study (NY)