United States of America

Filter Total Items: 3,207
Date published: April 29, 2020
Status: Active

LCMAP Change Stories: Gone in 60 Seconds

At first glance, the most striking patterns in land cover change over time in this animation of the Oso, Washington area would appear to be forest harvest and regrowth, but a more dramatic change emerged in 2014.

Date published: April 29, 2020
Status: Active

LCMAP Change Stories: It's a Sprawl World After All

The man-made Florida playland of Walt Disney World has grown outward on all sides since the amusement park’s construction commenced in the 1960s. Much of that growth has overtaken the wetlands, tree cover and grassland/shrublands near Orlando.

Date published: April 27, 2020
Status: Active

Southwest Wisconsin Groundwater and Geology (SWIGG) study

The fractured bedrock aquifers of southwest Wisconsin are often overlain by shallow soils, so private wells are potentially vulnerable to contamination by nitrate and pathogens from the land surface.  The goal of this study is to evaluate the extent and causes of private well water contamination in three southwest Wisconsin counties.

Contacts: Joel P Stokdyk, Kenneth R. Bradbury, Mark A. Borchardt, Maureen A. Muldoon
Date published: April 27, 2020
Status: Active

Microbial Source Tracking in the Lower Passaic River Basin Study Area, New Jersey

The USGS NJWSC is collaborating with the Passaic Valley Sewerage Commission (PVSC) on an Urban Waters Federal Partnership project in the Lower Passaic River basin to investigate the occurrence and potential sources of E. coli fecal indicator bacteria. 

Contacts: Pamela Reilly
Date published: April 20, 2020
Status: Active

Supporting Alabama Barrier Island Restoration Feasibility Study Through Online Data Tools

USGS WARC computer scientists designed, developed, and deployed a suite of web applications to assist the State of Alabama with restoration measure options of Dauphin Island.

Date published: April 20, 2020
Status: Active

Water Temperature Mapping in the Snoqualmie and Skykomish River Basins

Over the past two decades water temperatures in the Snoqualmie and Skykomish River basins has frequently exceeded temperature criteria established to protect Endangered Species Act-listed Chinook salmon, steelhead trout, and bull trout. These rivers combine in Monroe, WA to form the Snohomish River, the second largest producer of Chinook salmon in Puget Sound. The effects of high water...

Date published: April 17, 2020
Status: Active

Critical Coastal Habitats: Sustainability, Restoration and Forecasting

USGS WARC scientists are monitoring both the long- and short-term effects of coastal restoration efforts on ecosystem health in coastal habitats of Louisiana’s Barataria Basin.

Date published: April 17, 2020
Status: Active

Eyes on Earth Episode 23 – Ecosystem Monitoring

Eyes on Earth is a podcast on remote sensing, Earth observation, land change and science, brought to you by the USGS Earth Resources Observation and Science (EROS) Center. In this episode, we hear about how Landsat satellites help scientists study ecosystems, watersheds and...

Contacts: Janice Nelson
Date published: April 13, 2020
Status: Active

Eyes On Earth Episode 22 - Meet the Mendenhall Fellow

Eyes on Earth is a podcast on remote sensing, Earth observation, land change and science, brought to you by the USGS Earth Resources Observation and Science (EROS) Center. In this episode, we hear about one scientist’s journey from USGS Mendenhall fellow to full-time USGS...

Contacts: Janice Nelson
Date published: April 13, 2020
Status: Active

Surface Water-Quality Monitoring Network (WQN)

Pennsylvania’s Statewide Surface Water-Quality Monitoring Network (WQN) currently consists of 124 sites that are sampled between 6 and 20 times a year. Chemical analysis includes nutrient, major ions, and selected metals. Pesticide sampling is conducted twice a year at 5 locations. Biological sampling for benthic macroinvertebrates is conducted annually at 80 sites.

The WQN was...

Contacts: Andrew G Reif
Date published: April 9, 2020
Status: Active

Analysis of Factors Affecting Plume Remediation in a Sole-Source Aquifer System, Nassau County, New York (Northrup Grumman Plume)

Problem: Dissolved volatile-organic compounds (VOCs), including trichloroethylene (TCE), have been identified in a sole-source aquifer near the former Northrop Grumman Bethpage facility and Naval Weapons Industrial Reserve Plant (NWIRP) in Nassau County, N.Y. The Northrop Grumman Bethpage facility and NWIRP are listed as Class II inactive hazardous waste disposal sites (Site Nos. HW130003A...

Contacts: Paul Misut
Date published: April 8, 2020
Status: Active

Evaluation of Groundwater Resources in the Adelaida Area of San Luis Obispo County, California

Stakeholders in San Luis Obispo County are concerned that the increased demand for water use has, and will continue to, affect groundwater levels and availability in the Adelaida area. To address stakeholder concerns, the County of San Luis Obispo Board of Supervisors has asked the USGS to conduct a comprehensive evaluation of groundwater resources of the Adelaida area.