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Metals and PAHs in watershed soil and reef sediment at Olowalu and leeward Maui, February 2022 Fine-sediment elemental chemistry and short-lived cosmogenic radionuclides (Beryllium-7, Cesium-137, and Lead-210) were quantified to describe land-based sediment sources and runoff to Olowalu Reef in February 2022. Charcoal counts, total organic carbon contents, and 76 urban- and wildfire-associated contaminants called polycyclic aromatic hydrocarbons (PAHs) were quantified to explore urban and wildfire effects in watersheds above Olowalu Reef and in reef sediment. Sampling occurred approximately two months after winter flooding and one month after tsunamigenic waves impinged on the Maui shore from the eruption of Hunga-Tonga volcano in the South Pacific. The USGS Coastal and Marine Hazards and Resources Program... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Environmental Health, Geochemistry, Kealaloloa Ridge, All tags... Kihei, Kulanihakoi Gulch, Land Use Change, Maalaea, Manawaipueo Gulch, Marine Geology, Maui, Olowalu Stream, Opunaha Gulch, PCMSC, Pacific Coastal and Marine Science Center, Papalaua, Soil Sciences, Substrate, U.S. Geological Survey, USGS, Ukuhemame Gulch, Waiakoa Gulch, Waikapu Stream, Water Quality, cesium-137 dating, environment, environmental chemistry, fires, fringing reef, geochemistry, geoscientificInformation, lava flow, mercury analysis, radiometric dating, sediment geochemistry, stream, volcanic island, watershed, Fewer tags Radiocarbon age dating of biological material from cores collected off British Columbia, Canada and southeastern Alaska, U.S. along the Queen Charlotte-Fairweather fault zone Results of radiocarbon age dating of planktic foraminifera, benthic foraminifera, and pelecypod shell fragments collected from piston cores, trigger weight cores, and IKU grab samples obtained in 2015 and 2017 offshore British Columbia, Canada and southeastern Alaska, U.S. along the Queen Charlotte-Fairweather fault zone. Categories: Data; Tags: British Columbia, CMHRP, Canada, Coastal and Marine Hazards and Resources Program, Dixon Entrance, All tags... Habitat, Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of Alaska, Stratigraphy, U.S. Geological Survey, USGS, animals, benthic foraminifera, carbon-14 analysis, chemical analysis, chemical oceanography, environment, foraminifera, fragile ecosystems, geochemistry, geoscientificInformation, invertebrates, marine chemistry, mollusks, oceans, organisms, planktic foraminifera, protists, radiometric dating, Fewer tags Beach foreshore slope for the West Coast of the United States This data release contains foreshore slopes for primarily open-ocean sandy beaches along the west coast of the United States (California, Oregon and Washington). The slopes were calculated while extracting shoreline position from lidar point cloud data collected between 2002 and 2011. The shoreline positions have been previously published, but the slopes have not. A reference baseline was defined and then evenly-spaced cross-shore beach transects were created. Then all data points within 1 meter of each transect were associated with each transect. Next, it was determined which points were one the foreshore, and then a linear regression was fit through the foreshore points. Beach slope was defined as the slope of... Tags: California, Coastal and Marine Geology Program, Coastal processes, Geomorphology, MHW, All tags... Marine Geology, Mean High Water, Oregon, Pacific Coast, U.S. Geological Survey, USGS, United States, WHCMSC, Washington, Woods Hole Coastal and Marine Science Center, beach slope, environment, foreshore, geoscientificInformation, geospatial datasets, oceans, shoreline, Fewer tags