Geospatial Analyses and Applications Core Technology Team
Newsletter: October 2023-March 2024
Fostering Diversity in Science
Scientists ponder: How well are ag practices helping the Chesapeake Bay?
Publications
Discover Chesapeake related science in reports and journal articles authored by USGS scientists
Discover Chesapeake related science in reports and journal articles authored by USGS scientists
Chesapeake Bay Activities
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.
Wastewater reuse may be detrimental to smallmouth bass
Wastewater reuse may be detrimental to smallmouth bass
Wastewater effluent often contains chemicals that, when chronically present, can affect the health of aquatic organisms.
Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH
Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH
In addition to nutrient pollution from agricultural and urban areas, this river has historically had a slightly acidic pH (<7) due to acid drainage from widespread coal mining and atmospheric deposition.
Quick Links
Quick Links
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.
News
Chesapeake Bay Activities Newsletter October 2023-March 2024
Chesapeake Bay Activities Newsletter October 2023-March 2024
Fostering Diversity in Science
Fostering Diversity in Science
Scientists ponder: How well are ag practices helping the Chesapeake Bay?
Scientists ponder: How well are ag practices helping the Chesapeake Bay?
Publications
The effects of wastewater reuse on smallmouth bass (Micropterus dolomieu) relative abundance in the Shenandoah River Watershed, USA
Municipal and industrial wastewater effluent is an important source of water for lotic systems, especially during periods of low flow. The accumulated wastewater effluent flows—expressed as a percentage of total streamflow (ACCWW%)—contain chemical mixtures that pose a risk to aquatic life; fish may be particularly vulnerable when chronically exposed. Although there has been considerable focus on
Evaluating water-quality trends in agricultural watersheds prioritized for management-practice implementation
Many agricultural watersheds rely on the voluntary use of management practices (MPs) to reduce nonpoint source nutrient and sediment loads; however, the water-quality effects of MPs are uncertain. We interpreted water-quality responses from as early as 1985 through 2020 in three agricultural Chesapeake Bay watersheds that were prioritized for MP implementation, namely, the Smith Creek (Virginia),
Evaluation and review of best management practices for the reduction of polychlorinated biphenyls to the Chesapeake Bay
Polychlorinated biphenyls (PCBs) continue to impact the environment due to historic and ongoing anthropogenic sources (for example, industrial and agricultural), despite their ban. Contaminated stormwater has been identified as a vector for PCB transport to many estuaries impaired by PCBs. Management of these regulated discharges is typically achieved by best management practices (BMPs). This revi
Science
Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH
The Susquehanna River is the predominant source of freshwater and nutrients entering the Chesapeake Bay.
Wastewater reuse may be detrimental to smallmouth bass abundance in the Shenandoah River Watershed
Issue: Municipal and industrial wastewater effluent is an important source of water for streams and rivers, especially during periods of low flow. The reuse of wastewater effluent may become even more important if climate change exacerbates low streamflow and drought conditions. However, wastewater effluent often contains chemicals that, when chronically present, can affect the health of aquatic...
Geospatial Analyses and Applications Core Technology Team
About the Research The Geospatial Analyses and Applications Core Technology Team (CTT) as part of the Environmental Health Program collaborates with teams across USGS to develop and apply geospatial analytical methods to answer broad-scale questions about source-sink and cause-effect relationships between contaminants and vulnerable communities.