Filters: Categories: Data Release - Revised (X) > partyWithName: Woods Hole Coastal and Marine Science Center (X)

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Geochemical data supporting investigation of solute and particle cycling and fluxes from two tidal wetlands on the south shore of Cape Cod, Massachusetts, 2012-19 (ver. 2.0, October 2022) Assessment of geochemical cycling within tidal wetlands and measurement of fluxes of dissolved and particulate constituents between wetlands and coastal water bodies are critical to evaluating ecosystem function, service, and status. The U.S. Geological Survey and collaborators collected surface water and porewater geochemical data from a tidal wetland located on the eastern shore of Sage Lot Pond in Mashpee, Massachusetts, within the Waquoit Bay National Estuarine Research Reserve, between 2012 and 2019. Additional porewater geochemical and field data from a tidal wetland on the eastern shore of Great Pond in East Falmouth, MA are also included. These data can be used to evaluate biogeochemical conditions and cycling... Categories: Data, Data Release - Revised; Tags: Climatology, Environmental Health, USGS Science Data Catalog (SDC) Time-series of biogeochemical and flow data from a tidal salt-marsh creek, Sage Lot Pond, Waquoit Bay, Massachusetts, 2012-2016 (ver. 2.0, July 2023) Extended time-series sensor data were collected between 2012 and 2016 in surface water of a tidal salt-marsh creek on Cape Cod, Massachusetts. The objective of this field study was to measure water chemical characteristics and flows, as part of a study to quantify lateral fluxes of dissolved carbon species between the salt marsh and estuary. Data consist of in-situ measurements including: salinity, temperature, pH, dissolved oxygen, redox potential, fluorescent dissolved organic matter, turbidity and chlorophyll. Surface water flow, water level and water elevation data were also measured. The data provided in this release represent a compiled data set consisting of multiple sensor deployments between 2012 and 2016. Categories: Data, Data Release - Revised; Tags: Barnstable County, Cape Cod, Commonwealth of Massachusetts, Falmouth, Geochemistry, All tags... Marine Geology, Sage Lot Pond, Waquoit Bay, Water Quality, acoustic doppler current profiling, biochemistry, chlorophyll, dissolved organic matter, inlandWaters, low and intermediate salt marsh, oceans, salinity, salt marshes, surface-water level, time series datasets, turbidity, water chemistry, water properties, water quality, water temperature, wetland ecosystems, Fewer tags Carbon dioxide and methane fluxes with supporting environmental data from coastal wetlands across Cape Cod, Massachusetts Saline tidal wetlands are important sites of carbon sequestration and produce negligible methane (CH4) emissions due to regular inundation with sulfate-rich seawater. Yet, widespread management of coastal hydrology has restricted vast areas of coastal wetlands to tidal exchange. These ecosystems often undergo impoundment and freshening, which in turn cause vegetation shifts like invasion by Phragmites, that affect ecosystem carbon balance. Understanding controls of carbon exchange in these understudied ecosystems is critical for informing climate consequences of blue carbon restoration and/or management interventions. Here we present measurements of net ecosystem exchange of carbon dioxide (CO2) and methane, along... Categories: Data Release - Revised; Tags: Geochemistry, carbon, ecological processes, ecology, invasive species, All tags... wetland ecosystems, wetland functions, Fewer tags Massachusetts Shoreline Change Project, 2018 Update: A GIS Compilation of Shoreline Change Rates Calculated Using Digital Shoreline Analysis System Version 5.0, With Supplementary Intersects and Baselines for Massachusetts The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. The shoreline position and change rate are used to inform management decisions regarding the erosion of coastal resources. In 2001, a shoreline from 1994 was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013, two oceanfront shorelines for Massachusetts were added using 2008-9 color aerial orthoimagery and 2007 topographic lidar datasets obtained from the National Oceanic and Atmospheric Administration's Ocean Service, Coastal Services Center. This 2018 data release includes rates that incorporate... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Accretion, Atlantic Coast, Baseline, CMGP, Coastal and Marine Geology Program, All tags... DSAS, Digital Shoreline Analysis System, Erosion, Esri polyline shapefile, Geomorphology, Historical Shoreline, LRR, Linear Regression Rate, Massachusetts, Massachusetts Office of Coastal Zone Management, New England, Shoreline, Shoreline Change Rate, Transect, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, geoscientificInformation, long-term, oceans, short-term, Fewer tags Thermal Data and Navigation for T-3 (Fletcher's) Ice Island Arctic Ocean Heat Flow Studies, 1963-73 The T-3 (Fletcher's) Ice Island in the Arctic Ocean was the site of a scientific research station re-established by the Naval Arctic Research Laboratory starting in 1962. Starting in 1963, the USGS acquired marine heat flow data and coincident sediment cores at sites in Canada Basin, Nautilus Basin, Mendeleev Ridge, and Alpha Ridge as the ice island drifted in the Amerasian Basin. At least 584 heat flow penetrations were attempted, and data were reported at 356 of these. This dataset is the enhanced version of the original data table from Lachenbruch and others (2019; see cross-reference), incorporating additional information such as the probable dates of measurement, physiographic province and surficial geology... Categories: Data Release - Revised; Tags: Alpha Ridge, Amerasian Basin, Arctic, Arctic Ocean, Canada Basin, All tags... Chukchi Plataeu, Fletcher's Ice Island, Geophysics, Mendeleev Ridge, Nautilus Basin, T-3 Ice Island, field monitoring stations, heat flow (earth), marine geology, marine geophysics, navigational data, Fewer tags Continuous Bathymetry and Elevation Models of the Massachusetts Coastal Zone and Continental Shelf (ver. 3.0, December 2019) Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south... Categories: Data, Data Release - Revised; Tags: Boston Harbor, Buzzards Bay, Cape Cod Bay, Commonwealth of Massachusetts, Elizabeth Islands, All tags... Gulf of Maine, Massachusetts Bay, Nantucket Sound, Plymouth Bay, Stellwagen Bank, Vineyard Sound, bathymetry, digital elevation models, sea-floor characteristics, Fewer tags Topographic, bathymetric, multispectral, vegetation, sediment, and supporting GPS data collected on North Core Banks, Cape Lookout National Seashore, North Carolina in October 2022, U.S. Geological Survey Field Activity 2022-034-FA (ver. 2.0, December 2023) These data map in high detail surficial cross-sections of North Core Banks, a barrier island in Cape Lookout National Seashore, NC, in October 2022. U.S. Geological Survey field efforts are part of an interagency agreement with the National Park Service to monitor the recovery of the island from Hurricanes Florence (2018) and Dorian (2019). Three sites of outwash, overwash, and pond formation were targeted for extensive vegetation ground-truthing, sediment samples, bathymetric mapping with a remote-controlled surface vehicle, and uncrewed aerial systems (UAS) flights to collect multispectral imagery. Five semi-permanent ground control points were also installed and surveyed to act as control for additional aerial... Categories: Data Release - Revised; Tags: 5-band imagery, Aerial Imaging and Mapping Group, Atlantic Ocean, CMHRP, Cape Lookout, All tags... Coastal and Marine Hazards and Resources Program, Hurricane Dorian, Hurricane Florence, M600, MicaSense Altum-PT, NIR, North Core Banks, Physical Habitats and Geomorphology, Remote Sensing Coastal Change, Ricoh GRII, State of North Carolina, U.S. Geological Survey, UAS, USGS, WHCMSC, Woods Hole Coastal and Marine Science Center, aerial and satellite photography, geoscientificInformation, geospatial datasets, location, multispectral, oceans, panchromatic, photographs, Fewer tags Effect of pore fluid chemistry on the sedimentation and compression behavior of pure, endmember fines The safety, effectiveness and longevity of many construction and geotechnical engineering projects rely on correctly accounting for the evolution of soil properties over time. Critical sediment properties, such as compressibility, can change in response to pore-fluid chemistry changes, particularly if the sediment contains appreciable concentrations of fine-grained materials. Pore-fluid changes act at the micro scale, altering interactions between sediment particles, or between sediment particles and the pore fluid. These micro-scale alterations change how sediment fabrics and void ratios develop, which directly impacts macro-scale properties such as sediment compressibility. The goal of this study is to correlate... Categories: Data Release - Revised; Tags: Geochemistry, Geophysics, earth material properties, earth material properties, soil sciences, All tags... soil sciences, Fewer tags