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Greenhouse Gas Fluxes along a Tidal Gradient of Low Salinity Freshwater Forested Wetlands Greenhouse Gas Fluxes along a Tidal Gradient of Low Salinity Freshwater Forested Wetlands
A dynamic closed chamber system was used to measure in situ efflux rates of CO2, CH4, and N2O to the atmosphere from wetland soils along the Mattaponi and Pamunkey rivers. These greenhouse gas (GHG) flux measurements were taken quarterly from December 2015 to September 2017, at replicated hummock and hollow microtopography locations (where present) within each site. CO2 flux was measured...
Mississippi Barrier Islands Habitat Classification, National Wetlands Inventory, December 2017: (Cat Island, Ship Island, Horn Island, and Petit Bois Island) Mississippi Barrier Islands Habitat Classification, National Wetlands Inventory, December 2017: (Cat Island, Ship Island, Horn Island, and Petit Bois Island)
This data set consists of digital data describing wetlands and uplands habitats for the Mississippi Coastal Improvements Program (MsCIP) area, consisting of Cat, Ship, Horn and Petit Bois Islands for the year 2021. Wetlands were classified using the Cowardin et al. (1979) wetlands classification scheme to the level of freshwater and tidal salinity modifiers. For this dataset, upland...
Data from a Louisiana trapping effort targeting Razor-backed Musk Turtles (Sternotherus carinatus) from 2020 to 2022 Data from a Louisiana trapping effort targeting Razor-backed Musk Turtles (Sternotherus carinatus) from 2020 to 2022
This dataset contains data from a trapping effort targeting Razor-backed Musk Turtles (Sternotherus carinatus) across Louisiana.
Per- and Polyfluoroalkyl Substances (PFAS) and Co-occurring Contaminants in the Fraser River, a Headwater Tributary to the Colorado River - September 2021 to August 2023 Per- and Polyfluoroalkyl Substances (PFAS) and Co-occurring Contaminants in the Fraser River, a Headwater Tributary to the Colorado River - September 2021 to August 2023
The Fraser River, located in the Colorado Rocky Mountains, is a headwater tributary to the Upper Colorado River. This investigation by the U.S. Geological Survey (USGS) Water Mission Area, Water Quality Processes Program Proxies Project was conducted from September 2021 through August 2023 and consisted of eight sampling events incorporating 17 sites (15 stream sites and two wastewater...
Concentrations of Inorganic and Organic Substances in Lake Ontario and Surrounding Tributaries, New York, April to October 2023 Concentrations of Inorganic and Organic Substances in Lake Ontario and Surrounding Tributaries, New York, April to October 2023
This data release contains nutrient, metal, hormone, pharmaceutical, dioxin, and furan concentration data and field readings associated with surface water samples collected from 35 locations along the New York shoreline of Lake Ontario and surrounding tributaries. Samples were collected from April 2023 through October 2023 at nearshore, embayment, and tributary sites from Niagara River...
2025 Delaware Dataset and Code for Stacked Machine Learning-Based Timber Identification Using Laser-Induced Breakdown Spectroscopy 2025 Delaware Dataset and Code for Stacked Machine Learning-Based Timber Identification Using Laser-Induced Breakdown Spectroscopy
This study evaluated the use of stacked machine learning for wood species identification based on Laser Induced Breakdown Spectroscopy data. The approach combined three types of Support Vector Machine classifiers (linear, polynomial, and radial kernels) using a One-vs-All strategy. The outputs were combined through a Partial Least Squares Discriminant Analysis meta-learner. Variable...
Application of a prior-based model discrimination framework using synthetic MODFLOW 6 groundwater models Application of a prior-based model discrimination framework using synthetic MODFLOW 6 groundwater models
A synthetic one-dimensional groundwater flow model was developed using MODFLOW 6 as a test application of the prior-based model discrimination method described in the associated publication (https://doi.org/10.1029/2025WR040323). The model represents a steady-state unconfined aquifer where water flows horizontally between two constant head boundaries (a lake at the lefthand side and...
SWAT Outputs for Baseline Soil and Water Assessment for Los Planes Watershed, Baja California Sur, Mexico SWAT Outputs for Baseline Soil and Water Assessment for Los Planes Watershed, Baja California Sur, Mexico
This data release contains Soil Water Assessment Tool (SWAT) outputs (.shp) for three precipitation scenarios for the Los Planes watershed in Baja California Sur, Mexico. The inputs used are publicly available low-resolution data from international sources to produce uncalibrated baseline model conditions. The outputs for each scenario include annual average surface runoff (mm), sediment...
Concentrations of Per- and Polyfluoroalkyl Substances (PFAS) in Lake Ontario and Surrounding Tributaries, New York, July to September 2023 Concentrations of Per- and Polyfluoroalkyl Substances (PFAS) in Lake Ontario and Surrounding Tributaries, New York, July to September 2023
This data release contains per- and polyfluoroalkyl substances (PFAS) concentration data from surface water samples collected from 35 locations along the New York shoreline of Lake Ontario and surrounding tributaries. Samples were collected monthly from July 2023 through September 2023 at nearshore, embayments, and tributaries from Niagara River to Chaumont Bay. Nearshore and embayment...
Geophysical, geological, hydrological, and geochemical data for aquifer salinity mapping in the Midway Valley, Kern County, California Geophysical, geological, hydrological, and geochemical data for aquifer salinity mapping in the Midway Valley, Kern County, California
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board (State Water Board) compiled and analyzed data for mapping groundwater salinity, characterizing aquifer systems, and documenting the effects of oil-field water disposal and well integrity issues in the Midway Valley area of San Joaquin Valley, California, associated with the Midway...
Campaign GNSS Measurements Collected at Newberry Volcano by the Cascades Volcano Observatory Campaign GNSS Measurements Collected at Newberry Volcano by the Cascades Volcano Observatory
This data release contains data collected during campaign Global Navigation Satellite Systems (GNSS; formerly only the Global Positioning System or GPS) surveys conducted at Newberry Volcano. A survey in any given year may contain data from a subset of established sites depending on access, personnel, and the condition of the GNSS monument. For each site, we include raw data in binary or...
Campaign GNSS Measurements Collected at Mount Hood by the Cascades Volcano Observatory Campaign GNSS Measurements Collected at Mount Hood by the Cascades Volcano Observatory
This data release contains data collected during campaign Global Navigation Satellite Systems (GNSS; formerly only the Global Positioning System or GPS) surveys conducted at Mount Hood. A survey in any given year may contain data from a subset of established sites depending on access, personnel, and the condition of the GNSS monument. For each site, we include raw data in binary or...