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Webinar: New Insights into the Complexity of Estuarine Acidification

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Thursday, 30 January 2020, 12:00

Thursday, January 30, 2020. 12:00PM. Webinar: New Insights into the Complexity of Estuarine Acidification. Jeremy Testa and Ming Li, University of Maryland; Wei-Jun Cai, Professor, University of Delaware. Sponsored by NOAA NCCOS, OAP and NOS. More information here.


Estuarine acidification has been offered as a concept that links to (and contrasts with) ocean acidification, given that high rates of internal metabolism and associated watershed inputs in estuaries may conspire to drive acidification in excess of that originating from atmospheric CO2. Wecoupled a comprehensive measurement program to retrospective and future model simulations to quantify controls on estuarine acidification in Chesapeake Bay,a large estuarine complex with strong gradients of salinity, oxygen, metabolicrates, and bathymetry. We discovered that estuarine acidification may be even more complex (and interesting!) than originally posited, owing to self-buffering processes within macrophyte communities, connections of acidification rates to watershed management aimed at oxygen improvements, and a varying buffering of acidification through altered carbonate chemistry within freshwater sources. This new understanding presents both challenges and opportunities to managing future acidification along the coast.

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