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This data layer depicts lands and waters administered by the U.S. Fish and Wildlife Service (USFWS) in the Pacific Southwest Region. It may also include inholdings that are not administered by USFWS. The primary source for this inofmation is the USFWS Realty Program.
Summary Measurements of the concentrations of dichlorodifluoromethane (CFC-12), tritium (3H), and sulfur hexafluoride (SF6) in groundwater from basaltic aquifers in Jeju Island, Korea, demonstrate a terrigenic source of SF6. Using a lumped-parameter dispersion model, groundwater was identified as young water (<15 years), old water with negligible CFC-12 and 3H, and binary mixtures of the two. Model calculations using dispersion models and binary mixing based on 3H and CFC-12 concentrations demonstrate a non-atmospheric excess of SF6 relative to CFC-12 and 3H concentrations for more than half of the samples. The non-atmospheric excess SF6 may have originated from terrigenic sources in relict volcanic fluids, which...
Most of the great California–Nevada heat waves can be classified into primarily daytime or nighttime events depending on whether atmospheric conditions are dry or humid. A rash of nighttime-accentuated events in the last decade was punctuated by an unusually intense case in July 2006, which was the largest heat wave on record (1948–2006). Generally, there is a positive trend in heat wave activity over the entire region that is expressed most strongly and clearly in nighttime rather than daytime temperature extremes. This trend in nighttime heat wave activity has intensified markedly since the 1980s and especially since 2000. The two most recent nighttime heat waves were also strongly expressed in extreme daytime...
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These data were created as part of the National Oceanic and Atmospheric Administration Coastal Services Center's efforts to create an online mapping viewer depicting potential sea level rise and its associated impacts on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea level rise (slr) and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses.Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The Sea Level Rise and Coastal Flooding Impacts Viewer may be accessed at: http://www.csc.noaa.gov/slr...
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This dataset contains vegetation and land cover information for Antioch Dunes National Wildlife Refuge. It was created by visual interpretation and classification of aerial photography (National Agriculture Imagery Program) acquired in August 2014. Specifically, the NAIP imagery was segmented into polygons using eCognition Developer 9.0 software. Each segment was then classified by visually interpreting the aerial imagery. The interpretation process was facilitated by field data and geotagged field photos that were taken on the property in October 2014. No accuracy assessment was performed due to a limitation in the number of available ground control points.
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Management units for Ellicott Slough NWR. These boundaries were updated as part of the Comprehensive Conservation Plan in 2009.
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These data were created as part of the National Oceanic and Atmospheric Administration Coastal Services Center's efforts to create an online mapping viewer depicting potential sea level rise and its associated impacts on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea level rise (slr) and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses.Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The Sea Level Rise and Coastal Flooding Impacts Viewer may be accessed at: http://www.csc.noaa.gov/slr...
    map background search result map search result map National Wildlife Refuge, Interest Boundaries, Pacific Southwest Region Sea Level Rise Estimates for San Pablo Bay NWR NOAA Sea Level Rise Data (1-6 ft) for Ellicott Slough National Wildlife Refuge Vegetation and Land Cover - Antioch Dunes National Wildlife Refuge Management Units for Ellicott Slough NWR Vegetation and Land Cover - Antioch Dunes National Wildlife Refuge Management Units for Ellicott Slough NWR National Wildlife Refuge, Interest Boundaries, Pacific Southwest Region NOAA Sea Level Rise Data (1-6 ft) for Ellicott Slough National Wildlife Refuge Sea Level Rise Estimates for San Pablo Bay NWR