Delaware

Comprehensive water-quality assessment in the Delaware River Basin identifies increasing trends in salinity and decreasing trends in nutrients

rredwine@contractor.usgs.gov — Mon, 19 Dec 2022 10:04:06 EST

A new report focusing on the Delaware River Basin has found a general upward trend in specific conductance, total dissolved solids, chloride, and sodium. By contrast, trends in nutrients (ammonia, nitrate, orthophosphate, total nitrogen, and total phosphorus) tended to decline.

Investigating these trends can help the Delaware River Basin water community assess changes and management techniques.

USGS Works with Partners in 15 Cities to Improve Urban Waterways

ssobie@usgs.gov — Thu, 15 Sep 2022 13:59:11 EDT

Everyone deserves clean and healthy public waterways. USGS and Urban Waters Federal Partnership are investing ~$4 million to improve our Nation's water systems and help transform degraded urban riverscapes into cleaner, safer green spaces.

Media Advisory: Public and media invited to view helicopter and survey equipment for Delaware Bay study

ccollett@usgs.gov — Fri, 15 Jul 2022 15:47:41 EDT

MILTON, Del. — Please join the U.S. Geological Survey, SkyTEM and various partners for a demonstration takeoff of a low-flying helicopter and description of what scientists are seeking in and around the Delaware Bay.

Media Alert: Low-flying helicopter to survey Delaware Bay area for water research

ccollett@usgs.gov — Tue, 5 Jul 2022 17:13:35 EDT

Note to Editors: In the public interest and in accordance with FAA regulations, the USGS is announcing this low-level airborne project. Your assistance informing the local communities is appreciated.

USGS Finds PFAS in Untreated Well Water Across Delaware

jkfitzpatrick@usgs.gov — Wed, 9 Feb 2022 09:30:00 EST

Contaminants known as per- and polyfluorinated alkyl substances, or PFAS, were found to be widely distributed in untreated well water throughout Delaware, according to a new report by the U.S. Geological Survey.

Modeling past and future land cover in the Delaware River Basin

mtmartin@usgs.gov — Tue, 30 Nov 2021 12:00:00 EST

This article is part of the Fall 2021 issue of the Earth Science Matters Newsletter.

Land Use Models from EROS Offer Insight, Management Guidance for Delaware River Basin

jhult@contractor.usgs.gov — Fri, 18 Jun 2021 05:15:00 EDT

In the mid-1960s, the city of Philadelphia faced a potential public health crisis.

USGS Field Crews Document Isaias' Effects Along Atlantic Coast

hdewar@usgs.gov — Tue, 4 Aug 2020 14:00:00 EDT

To learn more about USGS’s role in providing science to decision makers before, during, and after Hurricane Isaias, visit the USGS Hurricane Isaias page at https://www.usgs.gov/isaias.

Assessment of Mercury Bioaccumulation in US National Parks Using Citizen Science

sbeldin@usgs.gov — Tue, 21 Jul 2020 04:00:00 EDT

A team of federal, academic, and NGO researchers conducted a national-scale assessment of mercury bioaccumulation in aquatic ecosystems using dragonfly larvae as biosentinels.

MD-DE-DC WSC Capabilities Sites

lrlanham@usgs.gov — Tue, 30 Jun 2020 20:00:00 EDT

We’ve created a series of websites, thematically named to characterize our work as our “Capabilities”, working interdependently with a diverse array of cooperative partners, the scientists, technicians, and support staff work tirelessly to produce the high-quality output for which the

President Proposes $971.2 Million FY 2021 Budget for USGS

drewlapointe@usgs.gov — Mon, 10 Feb 2020 06:30:00 EST

Budget Focuses on Bringing Science, Facilities, and Infrastructure into the 21st Century

USGS Scientists Document Hurricane Dorian’s Impacts

hdewar@usgs.gov — Thu, 5 Sep 2019 11:45:00 EDT

Editor’s Note: This story was revised Sept. 10, 2019 to include the later phases of USGS’ response to Hurricane Dorian.

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Dorian, visit the USGS Hurricane Dorian page at www.usgs.gov/dorian.

USGS Images Gas Hydrates with 2,000 Kilometers of New Seismic Data on the U.S. Mid-Atlantic Margin

ltorresan@usgs.gov — Thu, 1 Nov 2018 19:30:00 EDT

In August 2018, the USGS Coastal/Marine Hazards and Resources Program (CMHRP) completed the Mid-Atlantic Resource Imaging Experiment (MATRIX), a three-week cruise that acquired more than 2,000 kilometers of multichannel seismic data between Hudson Canyon and Cape Hatteras on the U.S. Atlantic margin.

Seismic Research Cruise Provides New Data on U.S. Atlantic Margin Gas Hydrates

apdemas@usgs.gov — Thu, 20 Sep 2018 06:00:00 EDT

Data acquired by the U.S. Geological Survey on the U.S. Atlantic Margin in August 2018 reveal new information about the distribution of gas hydrates in the sector stretching from the upper continental slope to deep water areas offshore New Jersey to North Carolina.

Ospreys Benefit as Contaminants Decrease in Delaware Estuary

jkfitzpatrick@usgs.gov — Tue, 10 Jul 2018 04:00:00 EDT

Lower levels of environmental contaminants—including pesticides, flame retardants and other pollutants—were recently found in osprey eggs in the Delaware Estuary compared to those tested from the 1970s through the early 2000s.

USGS Deploys Storm-Tide Sensors in Advance of Nor’Easter

jkfitzpatrick@usgs.gov — Thu, 1 Mar 2018 10:45:00 EST

USGS field crews are deploying storm-tide and wave sensors today from Maine to Delaware to track and study a Nor’easter forecasted to begin tomorrow.

Magnitude 4.1 Earthquake near Dover, Delaware

dnoseral@usgs.gov — Thu, 30 Nov 2017 13:45:00 EST

The USGS has up-to-date details on the November 30, 2017 event.

Stitching Together the New Digital Geologic Quilt of the United States

apdemas@usgs.gov — Mon, 21 Aug 2017 09:00:00 EDT

A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.

NOAA, USGS and partners predict larger summer ‘dead zone’ for the Chesapeake Bay

Anonymous — Wed, 14 Jun 2017 08:15:00 EDT

Low- and no-oxygen area threatens crabs, oysters, fish

Groundwater Quality in the Northern Atlantic Coastal Plain Aquifer System

jlavista@usgs.gov — Thu, 19 Jan 2017 05:00:00 EST

A regional assessment of untreated groundwater in the Northern Atlantic Coastal Plain aquifer system in the eastern United States is now available from the U.S. Geological Survey.

Study Assesses Threats to Groundwater Availability and Sustainability in Northern Atlantic Coastal Plain

Anonymous — Tue, 6 Sep 2016 05:30:00 EDT

Threats to groundwater availability and sustainability in the Northern Atlantic Coastal Plain are dependent to a large degree by the type of aquifers used for water supply, according to a new regional assessment by the U.S. Geological Survey.

Maryland Storm-Tide Sensor Network Strengthened

lrlanham@usgs.gov — Wed, 13 Jul 2016 07:30:00 EDT

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting Maryland will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.

For more information, see http://md.water.usgs.gov/usgs-news.html

Atlantic Methane Seeps Surprise Scientists

Anonymous — Thu, 16 Jun 2016 07:00:00 EDT

Recent scientific work has confirmed the source, composition and origin of methane seeps on the Atlantic Ocean seafloor, discovered in 2012, where scientists never expected them to be.

This hurricane season, scientists bring wave action into the picture

hdewar@usgs.gov — Wed, 1 Jun 2016 09:00:00 EDT

New USGS models help predict storm effects on beaches

As the 2016 hurricane season opens, weather forecasters, emergency managers and coastal residents have access to tools developed by the U.S. Geological Survey that predict, more precisely than ever, where beach erosion and beachfront flooding will take place during hurricanes and other storms.

New Science Challenges Old Assumptions about Harmful Algal Blooms

apdemas@usgs.gov — Tue, 31 May 2016 06:00:00 EDT

First-of-its-kind survey shows that algal toxins are found nationwide

Despite Long-Lasting Pollutants, Ospreys Thrive in US’ Largest Estuary

hdewar@usgs.gov — Mon, 4 Apr 2016 17:45:00 EDT

The world's largest breeding population of ospreys is coping well with the long-lasting residues of toxic chemicals that were banned decades ago but remain in the Chesapeake Bay food chain at varying levels, such as the pesticide DDT and insulating chemicals known as PCBs.

Up to 70 Percent of Northeast U.S. Coast May Adapt to Rising Seas

hdewar@usgs.gov — Mon, 14 Mar 2016 08:00:00 EDT

Much of the coast from Maine to Virginia is more likely to change than to simply drown in response to rising seas during the next 70 years or so, according to a new study led by the U.S. Geological Survey.

Visualize Your Water: A Citizen Science Challenge for High School Students

kgeer@usgs.gov — Wed, 13 Jan 2016 05:00:00 EST

Today, the U.S. Geological Survey and the U.S. Environmental Protection Agency announce Visualize Your Water, a citizen science challenge for high school students who live in the Great Lakes basin and Chesapeake Bay watershed.

New Remote Sensing Handbook Published

shorvath@usgs.gov — Tue, 1 Dec 2015 07:20:51 EST

A newly published, three-volume “Remote Sensing Handbook” is a comprehensive coverage of all remote sensing topics written by over 300 leading global experts.

Atlantic Beaches Still Likely to be Affected by Hurricane Joaquin

shorvath@usgs.gov — Fri, 2 Oct 2015 14:16:08 EDT

As the path of Hurricane Joaquin continues to move farther offshore, making landfall in the U.S. less likely, U.S. Geological Survey coastal change experts say there’s still a high probability of dune erosion along parts of the Atlantic coast, from the North Carolina Outer Banks to Cape Cod.