Data

This dataset presents observations and measurements of riparian plant invasion, community composition, and environmental conditions at 238 bridge crossings in four western USA river basins: the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas River, and South Platte River (281,946 square kilometers). The 238 sites are a stratified random sample of all bridge crossings in the river basi

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

As part of the California State Water Resources Control Board's Regional Groundwater Monitoring Program of Water Quality in Areas of Oil and Gas Production, during September 2016-February 2017, the U.S. Geological Survey collected and analyzed groundwater and associated quality-control (QC) samples from 14 water-production wells located within a three mile buffer zone of and in the Fruitvale Oil f

This data release contains annual estimates of suspended-sediment concentration and load for the Mississippi River, St. Francisville site and the Atchafalaya River, Melville site from 1980-2015. Annual estimates and flow-normalized estimates were generated using the Weighted Regressions on Time, Season and Discharge (WRTDS) model. Input data for the model included suspended-sediment concentrations

Detection data for Gulf sturgeon in the Suwannee River using a series of passive acoustic receivers. Data set includes receiver locations (river kilometer), detections, time periods, and individual transmitter ID.

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Wei

Average abundances of polar/subpolar planktic foraminiferal species n the North Atlantic for Nordic Sea ODP Sites 907 and 909 represent percentages when Nordic Sea water was warm enough to support foraminifera. N. atlantica relative abundances at very high northern latitudes (ODP Site 909) are lower than at subpolar latitudes because N. pachyderma (s) dominated these very cold waters during the Pl

In 2014, the USGS Lake Erie Biological Station participated in the Coordinated Science and Monitoring Initiative (CMSI) program, a program founded by the U.S. Environmental Protection Agency (EPA) and Environment Canada in the 1990s as a means to focus collaborative research attention on one of the five Great Lakes each year (on a rotating schedule) as a means to increase scientific knowledge for

Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based based fishery management, and supports decision making that considers food-web interactions. In support of binational Great Lakes fishery management the objectives of this survey were to: provide estimates of densities of key forage and predator species in the western basin

XBeach was used to simulate hurricanes Ivan (2004) and Katrina (2005) at Dauphin Island, Alabama, under present-day conditions and future sea level rise (SLR) scenarios as described in Passeri and others, 2018. Model inputs and outputs in the form of topography and bathymetry are provided here. For further information regarding model input generation and visualization of model output topography an

In this study, we investigated the potential effect of winter climate change upon salt marsh and mangrove forest foundation species in the southeastern United States. Our research addresses the following three questions: (1) What is the relationship between winter climate and the presence and abundance of mangrove forests relative to salt marshes; (2) How vulnerable are salt marshes to winter clim