Information on USGS studies of Chesapeake Bay, the nation's largest estuary, concerned with water quality, ecosystem history and change, vital habitat and biological resources, and land use studies.
Spurred by an executive order, Federal agencies will reinvigorate their studies of this important watershed. This fact sheet describes what they plan to do and how.
Links to information on the formation and structure of Chesapeake Bay including online reports, recent field work, field work archives, cooperating agencies, bibliography, and links to articles about other terrestrial impact craters.
Description of the priority ecosystems studies initiative with links to projects in Chesapeake Bay, Greater Yellowstone, Mojave Desert, Platte River, Salton Sea, San Francisco, and south Florida.
Presentation that the location of Chesapeake Bay may have been predetermined by a Eocene bolide, an extraterrestrial body, impacting the Earth in the vicinity of the Delmarva Peninsula at high velocity and exploding to create a large crater.
Summary of a circular on USGS environmental research and Chesapeake Bay with links to full document. Includes discussion of the problems of the estuary, restoration efforts, water quality, and effects on ecosystem.
Description of river input monitoring project's collecting and analyzing water-quality data to calculate and explain load and trend estimates of selected nutrients and suspended solids for five major river basins in the Chesapeake Bay watershed.