Chesapeake Bay Activities

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The Chesapeake Bay is our Nation’s largest estuary and provides over $100 billion in annual economic value. The USGS works with Federal, State, local, and academic partners to provide research and monitoring and to communicate results to inform management for the Chesapeake and other important landscapes across the Nation. See our Science page to learn about our themes and topics being addressed.

USGS leads STAC report on water clarity changes over the past 30 years

USGS leads STAC report on water clarity changes over the past 30 years

Water clarity is widely recognized as an important indicator of the health and trophic state of aquatic ecosystems and is a key management target given the limit it imposes on the growth of submerged aquatic vegetation (SAV).

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Targeted management may help reduce nitrogen loading to Chesapeake Bay

Targeted management may help reduce nitrogen loading to Chesapeake Bay

Largest projected reductions associated with decreasing agricultural fertilizer application

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Learn more about USGS science activities in the Bay from our Science Strategy. Additional summaries of the USGS Chesapeake Bay Activities are available in the science topics section.

Science Features, Summaries, and Videos

USGS Chesapeake Bay Science Fact Sheet

Science activities

Chesapeake Bay Activities Bibliography

Freshwater Flow into Chesapeake Bay

Poster map of the Chesapeake Watershed

News

Date published: December 2, 2019

Freshwater flows to Bay highest in 82 years of monitoring

Bay Journal — by Karl Blankenship — December 02, 2019

Date published: November 26, 2019

Bay health impacted by record flows

Chesapeake Bay Program — by Dylan Reynolds — November 26, 2019

Date published: November 5, 2019

The Chesapeake Bay gets some good news

EARTH Magazine — by Mary Caperton Morton — November 4, 2019

Publications

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Year Published: 2019

A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013

Executive SummaryThe New York-Pennsylvania area has a long history of hydrocarbon extraction, and the addition of shale gas extraction methods contributes to landscape disturbance borne by previously developed oil and non-shale gas resources. The main unconventional extraction method used to extract shale gas from the Marcellus Shale located in...

Roig-Silva, Coral M.; Milheim, Lesley E.; Slonecker, E. Terrence; Kalaly, Siddiq; Chestnut, Joseph
Roig-Silva, C.M., Milheim, L.E., Slonecker, E.T., Kalaly, S., and Chestnut, J., 2019, A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013: U.S. Geological Survey Scientific Investigations Report 2019–5096, 23 p., https://doi.org/10.3133/sir20195096.

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Year Published: 2019

Employing an ecosystem services framework to deliver decision ready science

Public land managers have limited information to allow for the integration and balancing of multiple objectives in land management decisions including the social (cultural and health), economic (monetary and nonmonetary), and environmental aspects. In this article, we document an approach to consider the many facets of decision making by...

Pindilli, Emily J.; Hogan, Dianna M.; Zhu, Zhiliang

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Year Published: 2019

Response of nitrogen loading to the Chesapeake Bay to source reduction and land use change scenarios: A SPARROW‐informed analysis

In response to concerns regarding the health of streams and receiving waters, the United States Environmental Protection Agency established a total maximum daily load for nitrogen in the Chesapeake Bay watershed for which practices must be in place by 2025 resulting in an expected 25% reduction in load from 2009 levels. The response of total...

Miller, Matthew; Capel, Paul D.; Garcia, Ana M.; Ator, Scott W.