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USGS data is foundation for new dissolved oxygen forecast

June 12, 2019

USGS data is the foundation for the new dissolved oxygen forecast. A large summer ‘dead zone’ is forecast for the Chesapeake Bay after a wet winter and spring.

“The forecast this year reflects the high levels of precipitation that have been observed across the Bay’s watershed,” said report co-author Jeremy Testa of the University of Maryland Center for Environmental Science. “The high flows observed this spring, in combination with very high flows late last fall, are expected to result in large volumes of hypoxic and anoxic water.”

This year, exceptionally high spring rainfall and streamflow is transporting nitrogen to tidal waters in amounts above the long-term average, according to the U.S. Geological Survey, which provides the nitrogen-loading estimates used to generate the annual hypoxia forecast.

“Managing estuarine responses to changing conditions on the landscape continues to be one of the nation’s environmental challenges,” said Joel Blomquist, hydrologist for the U.S. Geological Survey (USGS). “The science partnership in the Chesapeake Bay is setting the standard for supporting environmental managers with observation-based science.” 

Learn more read the full article.


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