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Model parameter input files to compare effects of stream discharge scenarios on sediment deposition and concentrations around coral reefs off west Maui, Hawaii This dataset consists of physics-based Delft3D model and Delwaq model input files used in modeling sediment deposition and concentrations around the coral reefs of west Maui, Hawaii. The Delft3D models were used to simulate waves and currents under small (SC1) and large (‘SC2’) wave conditions for current stream discharge (‘Alt1’) and stream discharge with watershed restoration (‘Alt3’). Delft3D model results were subsequently used as forcing conditions for Delwaq models to simulate sediment transport and dispersion. The Delwaq models were used to simulate sediment transport and concentrations under the same two wave and stream discharge scenarios. The Delwaq models were run using forcing conditions generated by... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Environmental Health, Geography, Geomorphology, All tags... Hydrology, Island of Maui, Land Use Change, Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Sedimentology, State of Hawaii, U.S. Geological Survey, USGS, coastal processes, coastal processes, coral reefs, geoscientificInformation, hazards, numerical modeling, oceans, reef, water circulation, water column features, waves, Fewer tags Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, August 2022 Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an integrated research program aimed at understanding the ecosystem responses following dam removal. The research program included repeated surveys of beach topography, nearshore bathymetry, and surface sediment grain size to quantify changes in delta morphology... Categories: Data; Tags: Geomorphology, Sedimentology Multibeam bathymetry, acoustic backscatter, and multichannel minisparker seismic-reflection data of USGS field activity 2016-666-FA collected in the Santa Barbara Basin in September and October of 2016 High-resolution multichannel minkisparker seismic-reflection (MCS) profiles were collected by the U.S. Geological Survey in September and October of 2016 from the northern portion of the Santa Barbara Basin offshore southern California. Data were collected aboard the USGS R/V Parke Snavely and NOAA R/V Shearwater during field activity 2016-666-FA. Data were acquired to support USGS geologic hazards projects to aide hazard assessment within the Santa Barbara Basin. High-resolution multichannel minisparker seismic-reflection, multibeam-bathymetry and acoustic-backscatter data were collected to investigate the causes and consequences of submarine landslides in the Santa Barbara Basin. These data and information are... Tags: Geophysics, Marine Geology, Sedimentology, Seismology, Stratigraphy, All tags... Structural Geology, Fewer tags Sediment grain-size data from the Klamath estuary, California This data release supersedes version 1.0, published in November 2021 at https://doi.org/10.5066/P9CAZIHJ. Versioning details are documented in the accompanying Klamath_Grainsize_VersionHistory.txt file. This data release includes grain-size measurements of sediment samples collected from the substrate surface and uppermost 10 cm of sediment deposits in the Klamath estuary, northern California. Samples were collected using a BMH-60 bed-material sampler deployed from a boat, or by hand trowel from subaerial or shallow-water (less than 0.5 m water depth) regions along the estuary margins and side channels. Sediment grain size was analyzed at the U.S. Geological Survey (USGS) laboratory in Santa Cruz, Calif. Particles... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Del Norte County, Distributions, Geomorphology, All tags... Klamath basin, PCMSC, Pacific Coastal and Marine Science Center, Sedimentology, State of California, U.S. Geological Survey, USGS, environment, estuary, field sampling, geoscientificInformation, grain size, grain-size analysis, land surface characteristics, sediment, sediment grain size, Fewer tags Grain size and charcoal abundance in sediment samples from Los Padres reservoir, Carmel River watershed, California Sediment samples were collected from Los Padres reservoir in the Carmel River watershed, central California coast, between July 11 and 17, 2017, using a CME-45 barge-mounted drill rig, to characterize sedimentary properties in the reservoir deposits following the Soberanes Fire of 2016 and high river flows in winter 2017. Borehole samples were recovered using direct push coring with an Osterberg piston sampler operated by Taber Drilling Company of Sacramento, California, and overseen by AECOM, Inc. Sediment was recovered using a split-barrel sampler and a rotary drill bit was added to the sampler where needed to penetrate coarse sediment. Samples from four boreholes are described in this data release: three sampled... Categories: Data; Tags: CMHRP, Carmel River, Coastal and Marine Hazards and Resources Program, Data Content Subjects, Geomorphology, All tags... Nonliving Resources, PCMSC, Pacific Coastal and Marine Science Center, Sedimentology, U.S. Geological Survey, USGS, coastal change hazards topics, datasets, earth sciences, environment, field inventory and monitoring, geoscientificInformation, grain-size analysis, inlandWaters, Fewer tags Grain-size data for sediment samples collected in Whiskeytown Lake, northern California, in 2018 and 2019 This data release supersedes version 1.0, published in July 2021 at https://doi.org/10.5066/P9BHOPEP. Versioning details are documented in the accompanying Whiskeytown_VersionHistory.txt file The Carr Fire ignited in northern California in July 2018, and ultimately burned almost 300,000 acres (approximately half on federal lands), resulting in a federal major-disaster declaration (DR-4382). Approximately 93% of the area within Whiskeytown National Recreation Area was burned extensively during the Carr Fire, including all of the landscape surrounding and draining into Whiskeytown Lake. Whiskeytown Lake, a federally managed reservoir, subsequently acted as a sediment trap for material eroded from hillslopes and streambeds... Categories: Data; Tags: Assessments, CMHRP, Coastal and Marine Hazards and Resources Program, Material Resources, PCMSC, All tags... Pacific Coastal and Marine Science Center, Sedimentology, State of California, U.S. Geological Survey, USGS, Water Resources, Whiskeytown National Recreation Area, geoscientificInformation, grain size, land surface characteristics, reservoir sedimentation, sediment, sediment grain size, Fewer tags Eelgrass and substrate characteristics in Bellingham Bay, Washington, July 2019 and July-August 2020 Eelgrass (Zostera marina) characteristics, sediment grain size distributions, sediment total organic carbon contents (TOC), carbon isotope ratios of sediment organic matter, and total carbon to total nitrogen ratios were measured at four lower intertidal sites in Bellingham Bay, Washington, July 2-5, 2019, and three subtidal sites (grain-size and TOC only) on July 11, 2019. Categories: Data; Tags: Aquatic Biology, Aquatic vegetation, Bay, Bellingham Bay, CMHRP, All tags... Carbon isotope analysis, Coastal and Marine Hazards and Resources Program, Grain-size analysis, Habitat, PCMSC, Pacific Coastal and Marine Science Center, Physical and chemical characteristics of habitats, Seagrass beds, Sediment, Sedimentology, Substrate, Tidal flat, U.S. Geological Survey, USGS, Washington State, Whatcom County, environment, geoscientificInformation, Fewer tags Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data collected in the 1970s and 1980s with DEMs created from bathymetric data collected in the 2010s and 2020. These types of change analyses can provide information on the quantities and patterns of erosion and deposition in San Francisco Bay over the 9 to 47 years between surveys, and they reveals that the bay floor lost about 34 million cubic meters of sediment between the intervening time period. Results from this study can be used to assess how San Francisco Bay has responded to changes in the system such as sea-level rise and variation... Categories: Data; Tags: Geomorphology, Hydrology, Marine Geology, Sedimentology, Water Quality Bathymetry and acoustic backscatter data from Floras Lake, Oregon, June 2018 This publication releases single-beam bathymetry and backscatter datasets acquired by the U.S. Geological Survey (USGS) during surveys performed on Floras Lake, Oregon, in June 2018. Bathymetry and backscatter data were collected using two personal watercraft (PWCs) equipped with single-beam sonar systems, sidescan sonar systems, and global navigation satellite system (GNSS) receivers. Bathymetry data are provided as point data in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM), Zone 10 North, meters coordinate system, with elevations relative to the NAVD88 vertical datum. Acoustic-backscatter data are provided as a GeoTIFF file also projected... Categories: Data; Tags: Bathymetry and Elevation, CMHRP, Cape Blanco, Coastal and Marine Hazards and Resources Program, Curry County, All tags... Echo Sounders, Floras Lake, GPS (Global Positioning System), GPS measurement, Geomorphology, Geophysics, Global Positioning System (GPS) observations, Oregon, PCMSC, Pacific Coastal and Marine Science Center, Sedimentology, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags Lead, Radium, Cesium, and Thorium isotope activity in sediment samples from Los Padres reservoir, Carmel River watershed, California Sediment samples were collected from Los Padres reservoir in the Carmel River watershed, central California coast, between July 11 and 17, 2017, using a CME-45 barge-mounted drill rig, to characterize sedimentary properties in the reservoir deposits following the Soberanes Fire of 2016 and high river flows in winter 2017. Borehole samples were recovered using direct push coring with an Osterberg piston sampler operated by Taber Drilling Company of Sacramento, California, and overseen by AECOM, Inc. Sediment was recovered using a split-barrel sampler and a rotary drill bit was added to the sampler where needed to penetrate coarse sediment. Samples from three boreholes are described in this data release: two sampled... Categories: Data; Tags: CMHRP, Carmel River, Coastal and Marine Hazards and Resources Program, Data Content Subjects, Geochemistry, All tags... Nonliving Resources, PCMSC, Pacific Coastal and Marine Science Center, Sciences, Sedimentology, U.S. Geological Survey, USGS, coastal change hazards topics, environment, geoscientificInformation, inlandWaters, Fewer tags Grain-size data from core S3-15G, Monterey Fan, Central California This data release supersedes version 1.0, published in October 2021 at https://doi.org/10.5066/F74F1NW7. Versioning details are documented in the accompanying VersionHistory_P9DZ321R.txt file. This data release presents sediment grain-size data from samples collected from core S3-15G, a 4.72-m long gravity core collected at a depth of 3,491 meters on the western levy of the Monterey Fan on May 31, 1978 (USGS Field Activity S-3-78-SC). Categories: Data; Tags: Assessments, CMHRP, Coastal and Marine Hazards and Resources Program, Loran-C navigation, Monterey Bay, All tags... Monterey Fan, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Sedimentology, State of California, Substrate, U.S. Geological Survey, USGS, core analysis, drilling and coring, environment, grain-size analysis, laboratory methods, marine geology, oceans, sea-floor characteristics, sediment analysis, sedimentology, Fewer tags Grain-size data for sediment samples collected in Whiskeytown Lake, northern California, in 2018 and 2019 Note: this data release has been depecrated. Find the updated version here: https://doi.org/10.5066/P9TUTK7J The Carr Fire ignited in northern California in July 2018, and ultimately burned almost 300,000 acres (approximately half on federal lands), resulting in a federal major-disaster declaration (DR-4382). Approximately 93% of the area within Whiskeytown National Recreation Area was burned extensively during the Carr Fire, including all of the landscape surrounding and draining into Whiskeytown Lake. Whiskeytown Lake, a federally managed reservoir, subsequently acted as a sediment trap for material eroded from hillslopes and streambeds in the aftermath of the Carr Fire. The U.S. Geological Survey measured topographic... Categories: Data; Tags: Assessments, CMHRP, Coastal and Marine Hazards and Resources Program, Material Resources, PCMSC, All tags... Pacific Coastal and Marine Science Center, Sedimentology, State of California, U.S. Geological Survey, USGS, Whiskeytown National Recreation Area, geoscientificInformation, grain size, land surface characteristics, reservoir sedimentation, sediment, sediment grain size, Fewer tags Observations of tsunami and runup heights in Santa Cruz Harbor and surrounding beaches from the 2022 Hunga Tonga-Hunga Ha'apai tsunami The 14 January 2022 eruption of Tonga Hunga-Tonga Ha‘apai volcano generated tsunamis that impacted the west coast of the United States on the morning of 15 January 2022. This data release presents runup heights and tsunami heights collected by the U.S. Geological Survey (USGS) and the California Geological Survey (CGS) during surveys at the Santa Cruz Harbor and beaches in Santa Cruz County, California, on January 19th and 20th, 2022 (Figure 1; USGS Field Activity 2022-607-FA). Evidence of tsunami inundation included high-water marks on buildings and harbor infrastructure (Figure 2a), wrack lines (Figure 2b), and flow-direction indicators such as bent vegetation (Figure 2c). Elevations surveyed at the maximum inland... Categories: Data; Tags: Geophysics, Sedimentology, biota Sediment grain size at river outlets along the California coast Fluvial sediment samples were collected from the lowermost reaches of 21 coastal watersheds in California, in order to characterize surficial grain size of river sediment from deposits that appeared to be recent based on field context. Samples were collected using a trowel to sample the uppermost 10 cm of sediment. Sampled locations included river-deposited sediment, upstream of tidal influence. Samples excluded coarse gravel and cobble grain sizes, if present. The watersheds selected for sampling have relatively little urban land use and no other recent data available on their fluvial sediment grain size. Sediment samples were analyzed for grain size at the U.S. Geological Survey (USGS) laboratory in Santa Cruz,... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Data Content Subjects, Nonliving Resources, PCMSC, All tags... Pacific Coastal and Marine Science Center, Sedimentology, State of California, U.S. Geological Survey, USGS, datasets, earth sciences, environment, field inventory and monitoring, geoscientificInformation, grain-size analysis, inlandWaters, Fewer tags Multichannel minisparker seismic-reflection and chirp sub bottom data collected in the Santa Barbara Channel in July of 2018 High-resolution multichannel minisparker seismic-reflection and chirp sub-bottom data were collected by the U.S. Geological Survey in July of 2018 between Point Conception and Coal Oil Point in the Santa Barbara Channel, California. Data were collected aboard the USGS R/V Parke Snavely during field activity 2018-645-FA. Data were acquired to support the USGS geologic hazards projects to aide hazard assessment of shallow faulting, slope stability, and submarine landslides along the western Santa Barbara Channel. These data and information are intended for science researchers, students from elementary through college, policy makers, and general public. Tags: Geophysics, Marine Geology, Sedimentology, Seismology, Stratigraphy, All tags... Structural Geology, Fewer tags Hydrodynamic model of the lower Columbia River, Oregon and Washington, 2017-2020 A three-dimensional hydrodynamic model of the lower Columbia River (LCR) was constructed using the Delft3D Flexible Mesh (DFM) modeling suite to simulate water levels, flow, and seabed stresses between January 1, 2017, and April 20, 2020. This data release describes the construction and validation of the model application and provides input files suitable to run the model on Delft3D Flexible Mesh software version 2021.01. Model Description The model application was adapted from van der Steeg (2016) and Wherry and others (2019). The model domain extends between the Bonneville Dam at its upstream limit to about 130 km offshore of the river mouth in the Pacific Ocean (fig. 1). Ten equally spaced vertical sigma layers... Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Columbia River, Geomorphology, Marine Geology, All tags... PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Sedimentology, State of Oregon, State of Washington, U.S. Geological Survey, USGS, coastal processes, marine water quality, numerical modeling, oceans, water circulation, water column features, Fewer tags High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016 (ver. 2.0, July 2021) A 1-m resolution bathymetric digital elevation model (DEM) of all off San Francisco Bay was constructed from bathymetric surveys collected from 1999 to 2020. The DEM has been divided into northern, central, and southern sections due to file size, and is available in both MLLW and NAVD88 versions. Background: In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging... Tags: Bathymetry and Elevation, California, Carquinez Strait, Digital Elevation Model (DEM) 1 meter, Geomorphology, All tags... Global Positioning System (GPS) observations, Golden Gate, Hydrology, Lidar Point Cloud (LPC), Oakland, San Francisco, San Francisco Bay, San Mateo, San Pablo Bay, San Rafael, Sedimentology, Suisun Bay, Water Resources, bathymetry, bathymetry measurement, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, multibeam echo sounder, single-beam echo sounder, topography, Fewer tags Grain-size data from core S3-15G, Monterey Fan, Central California This data release has been deprecated. Please see new data release here: https://doi.org/10.5066/P9DZ321R This data release presents sediment grain-size data from samples collected from core S3-15G, a 4.72-m long gravity core collected at a depth of 3,491 meters on the western levy of the Monterey Fan on May 31, 1978 (USGS Field Activity S-3-78-SC). Tags: Assessments, CMHRP, Coastal and Marine Hazards and Resources Program, Loran-C navigation, Marine Geology, All tags... Monterey Bay, Monterey Fan, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Sedimentology, State of California, Substrate, U.S. Geological Survey, USGS, core analysis, drilling and coring, environment, grain-size analysis, laboratory methods, marine geology, oceans, sea-floor characteristics, sediment analysis, sedimentology, Fewer tags Sediment grain-size data from the Klamath estuary, California Note: this data release has been depecrated. Find the updated version here: https://doi.org/10.5066/P9MAJHNI This data release includes grain-size measurements of sediment samples collected from the substrate surface and uppermost 10 cm of sediment deposits in the Klamath estuary, northern California. Samples were collected using a BMH-60 bed-material sampler deployed from a boat, or by hand trowel from subaerial or shallow-water (less than 0.5 m water depth) regions along the estuary margins and side channels. Sediment grain size was analyzed at the U.S. Geological Survey (USGS) laboratory in Santa Cruz, Calif. Particles coarser than 2 mm were sieved using a RO-TAP sieve shaker, and particles finer than 2 mm were... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Del Norte County, Distributions, Klamath basin, All tags... PCMSC, Pacific Coastal and Marine Science Center, Sedimentology, State of California, U.S. Geological Survey, USGS, environment, estuary, field sampling, geoscientificInformation, grain size, grain-size analysis, land surface characteristics, sediment, sediment grain size, Fewer tags Aerial imagery and structure-from-motion data products from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA This data release presents aerial imagery and structure-from-motion (SfM) data products from uncrewed aerial system (UAS) surveys conducted on the ocean beaches adjacent to the Columbia River Mouth at the Oregon-Washington border. The surveys cover approximately 3 kilometers of Benson Beach at Cape Disappointment State Park north of the Columbia River mouth, in Washington, and 3 kilometers of the beach at Fort Stevens State Park south of the river mouth, in Oregon. The surveys were conducted using a Department of Interior-owned quadcopter fitted with a digital camera featuring a global shutter. The UAS was flown on pre-programmed autonomous flight lines which were spaced to provide sufficient overlap between... Categories: Data; Tags: Geomorphology, Remote Sensing, Sedimentology