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This data table includes in-situ near-shore seawater measurements of excess radon (Rn-222), tide and crater lake water levels and salinity collected in Kalaupapa, Moloka'i, Hawaii.
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
Ecology,
Geochemistry,
Geophysics,
Data were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center to investigate the influence of wind waves on sediment dynamics in two flooded agricultural tracts in the northern Sacramento-San Joaquin Delta: Little Holland Tract and Liberty Island. This effort is part of a large interdisciplinary study led by the USGS California Water Science Center and funded by the U.S. Bureau of Reclamation to investigate how shallow-water habitats in the Sacramento-San Joaquin Delta function and whether they provide good habitat for native fish species, including the Delta smelt. Elevated turbidity is a requirement for Delta smelt habitat, and turbidity is largely comprised of suspended sediment....
Categories: Data,
Data Release - Revised;
Types: Citation;
Tags: Average Burst Pressure,
CMG,
CMGP,
CONDUCTIVITY,
CTD > CONDUCTIVITY, TEMPERATURE, DEPTH,
This data release contains gridded bathymetry data from repeated multibeam sonar surveys and input files for a hydrodynamic and sediment transport model application of the mouth of the Columbia River (MCR), Oregon and Washington. The bathymetry data were collected by the U.S. Army Corps of Engineers Portland District Surveys Section between September 9, 2020, and March 10, 2021, to characterize the morphology and dispersal of a nearshore berm composed of 216,000 m3 of sand-sized sediment that was dredged from the MCR navigation channel and placed on the northern flank of the ebb-tidal delta in water depths between 12 and 15 m. Observations of berm morphology were compared with predictions from a three-dimensional...
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
Geomorphology,
PCMSC,
Pacific Coastal and Marine Science Center,
Time series data of wave height and water surface elevation were acquired for 109 days at four locations off of the north coast and four locations off the south coast of Buck Island, U.S. Virgin Islands, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs. The relative placement of sensors on the reefs were as follows: BUI16S1T and BUI16N1T – fore reef BUI16S2T and BUI16N2T – outer reef flat BUI16S3T and BUI16N3T – middle reef flat BUI16S4T and BUI16N4T – inner reef flat
Water depth, turbidity, and current velocity time-series data were collected in Little Holland Tract from 2015 to 2017. Depth (from pressure) and velocity were measured in high-frequency (8 Hz) bursts. Burst means represent tidal stage and currents, and burst data can be used to determine wave height, period, direction, and wave-orbital velocity. The turbidity sensors were calibrated to suspended-sediment concentration measured in water samples collected on site. The calibration and fit parameters for all of the turbidity sensors used in the study are tabulated and provided with the data. Data were sequentially added to this data release as they were collected and post-processed. Typically, each zip folder for...
Time series data of water surface elevation and wave height were acquired at ten locations for 518 days (in three separate deployments) off the south coast of Kwajalein Island, Marshall Islands, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs. The relative placement of sensors on the reefs were as follows: KWA13W1 and KWA13E1 – fore reef KWA13W2 and KWA13E2 – outer reef flat KWA13W1 and KWA13E1 – middle reef flat KWA13W1 and KWA13E1 – inner reef flat
The U.S. Geological Survey Pacific Coastal and Marine Science Center collected data to investigate sediment dynamics in the shallows of San Pablo Bay in two deployments: February to March 2011 (ITX11) and May to June 2012 (ITX12). This data release includes time-series data and grain-size distributions from sediment grabs collected during the deployments. During each deployment, time series of current velocity, water depth, and turbidity were collected at several stations in the shallows, and one station in the channel. Velocity and depth (pressure) were collected at high frequency (10 Hz) to allow calculation of wave parameters and turbulence statistics. Instrumentation and data collected in the two deployments...
These data present suspended particle size distributions collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center within two embayments of San Francisco Bay. Data were collected at one site in San Pablo Bay and one site in Grizzly Bay from June through August 2019, by deploying a Sequoia Scientific Laser In-situ Scattering and Transmissometry instrument (LISST 100x) from a small vessel near pre-established USGS instrument moorings. At both sites, data were collected on six dates at three depths, generally near the water surface, at mid depth, and near the sediment bed, for 1-3 minutes at each depth. LISST volume concentrations are most accurate when the optical percent transmission...
Various water column variables, including salinity, dissolved inorganic nutrients, pH, total alkalinity, dissolved inorganic carbon, radio-carbon isotopes were measured in samples collected using a Niskin-bottle rosette at selected depths from sites offshore of California and Oregon from October to November 2019 during NOAA Ship Lasker R-19-05 (USGS field activity 2019-672-FA). CTD (Conductivity Temperature Depth) data were also collected at each depth that a Niskin-bottle sample was collected and are presented along with the water sample data. This data release supersedes version 1.0, published in August 2020 at https://doi.org/10.5066/P9ZS1JX8. Versioning details are documented in the accompanying VersionHistory_P9JKYWQU.txt...
Water samples were collected in San Pablo Bay and Grizzly Bay on five days from June through August 2019. The water samples were collected near pre-established USGS instrument moorings with a peristaltic pump or via a Niskin bottle, deployed off of a small vessel. Data are provided in a comma-delimited values spreadsheet.
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
Grizzly Bay,
PCMSC,
Pacific Coastal and Marine Science Center,
Time-series data of water depth, velocity, turbidity, and temperature were acquired between 5 October 2015 and 21 March 2017 within the Monterey Canyon off of Monterey, CA, USA. In order to better understand the triggering, progression and evolution of turbidity currents in Monterey Submarine Canyon, an experiment was designed to directly measure velocity, suspended sediment and physical water properties (temperature, salinity and density) along the canyon axis during an 18-month period. Three moorings in the upper canyon (MS1, MS2, MS3) containing oceanographic instruments and Anderson- type sediment traps were deployed during three consecutive six-month periods (A: October 2015 - April 2016; B: April - October...
Time series data of water surface elevation and wave height were acquired for the winters of 2014-2015 and 2015-2016 at the end of Santa Cruz Municipal Wharf in support of a study on the morphological change of rippled scour depressions off Santa Cruz, CA.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: CMGP,
CTD,
CTD measurement,
CURRENT METERS,
Coastal and Marine Geology Program,
Time series data of wave height and water surface elevation were acquired for 100 days at three locations off of the island of Nanumanga, three locations off of the island of Nanumea, three locations off of the island of Nui, two locations off of the island of Nikulaelae, and two locations off of the island of Niulakita, in the island nation of Tuvalu, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs. The relative placement of sensors on the reefs were as follows: TVL19NG3, TVL19NM1, TVL19NU1, TVL19NK1 and TVL19NL1 – offshore TVL19NG1, TVL19NM2 and TVL19NU2 – reef crest TVL19NG3, TVL19NM3, TVL19NU3, TVL19NK2 and TVL19NL2 – reef...
Time series data of wave height and water surface elevation were acquired for 147 days at four locations off of the north coast and four locations off the south coast of Buck Island, U.S. Virgin Islands, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs. The relative placement of sensors on the reefs were as follows: BUI15S1T and BUI15N1T – fore reef BUI15S2T and BUI15N2T – outer reef flat BUI15S3T and BUI15N3T – middle reef flat BUI15S4T and BUI15N4T – inner reef flat
Time-series data of water surface elevation, waves, currents, temperature, and salinity collected between 17 May 2017 and 17 Jan 2018 off the southwest coast of Puerto Rico in support of a study on circulation and sediment transport dynamics over coral reefs. The data are available in NetCDF format, grouped together in zip files by instrument site location. A README.txt file details the files contained within each zip, including the file names, type of data collected, instrument that collected the data, depth, and start and end dates/times.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Bahia de Guanica,
CMHRP,
Coastal and Marine Hazards and Resources Program,
Commonwealth of Puerto Rico,
Hydrology,
Hydrodynamic and sediment transport time-series data, including water depth, velocity, turbidity, conductivity, and temperature, were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center at three locations in the Sacramento-San Joaquin Delta. Data were collected in Lindsey Slough in April 2017, and Middle River and the Mokelumne River in March 2018. Data files are grouped by location. At each of the three sites, data were collected at stations outside and within patches of vegetation, to determine how submerged invasive vegetation influences tidal currents and suspended-sediment concentration. The Table below shows the data types collected at each station, and classifies stations...
Categories: Data;
Tags: CMHRP,
CTD,
CTD measurement,
Coastal and Marine Hazards and Resources Program,
Conductivity,
Hydrodynamic and sediment transport time-series data, including water depth, velocity, turbidity, conductivity, and temperature, were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center within two embayments of San Francisco Bay. Data were collected in San Pablo Bay and Grizzly Bay from January to June 2020 at seven locations. Data files are grouped by area (shallows of San Pablo Bay, channel of San Pablo Bay, and shallows of Grizzly Bay). Each shallow site contained a variety of sensors located on two tripods, while the channel site consisted of one tripod. Users are advised to assess data quality carefully, and to check metadata for instrument information, as platform deployment...
Time series data of wave height and water surface elevation were acquired at ten locations for 75 days south of Lahaina, off of the west coast of the island of Maui, Hawaii, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs. The relative placement of sensors on the reefs were as follows: MAU17TP1 and MAU17LA1 – middle fore reef MAU17TP2 and MAU17LA2 – upper fore reef MAU17TP3 and MAU17LA3 – outer reef flat MAU17TP4 and MAU17LA4 – middle reef flat MAU17TP5 and MAU17LA5 – inner reef flat
Time series data of wave height and water surface elevation were acquired for 147 days at eleven locations, in two cross-reef transects, off of the west coast of Rincon, Puerto Rico, in support of a study on the coastal circulation patterns and the transformation of surface waves over the coral reefs. The relative placement of sensors on the reef were as follows: PRI19N01 – offshore reef crest, north transect PRI19N02, PRI19N03 – offshore reef flat, north transect PRI19S03 – offshore reef flat, south transect PRI19N04, PRI19N05 and PRI19N06 – inner reef flat, north transect PRI19S04, PRI19S05, PRI19S06, PRI19S07 and PRI19S08 – inner reef flat, south transect
Water depth, turbidity, and current velocity time-series data were collected in Little Holland Tract in 2016. Depth (from pressure) and velocity were measured in high-frequency (8 Hz) bursts. Burst means represent tidal stage and currents, and burst data can be used to determine wave height, period, direction, and wave-orbital velocity. The turbidity sensors were calibrated to suspended-sediment concentration measured in water samples collected on site. The calibration and fit parameters for all of the turbidity sensors used in the study are tabulated and provided with the data. Data were sequentially added to this data release as they were collected and post-processed. Typically, each zip folder for a deployment...
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