A pair of new map layers representing the seasonal cycle averages for chlorophyll-a and pH at sites in Mid-Atlantic estuaries and ocean areas from 2018-23 are now available in the Mid-Atlantic Ocean Data Portal's Portal’s Water Quality theme. The datasets were assembled by former Mid-Atlantic Coastal Acidification Network (MACAN) Fellow and Barnard College of Columbia University student Nichole Ruiz in support of MACAN’s research on how pH and chlorophyll-a dynamics may impact each other under increasing pCO2 conditions in the ocean surface and coastal zone.

The maps include data for specified sites in the Mid-Atlantic Bight, Barnegat Bay, Chesapeake Bay, Delaware Bay, and offshore New Jersey. They add to a growing collection of carbonate chemistry and ocean acidification map layers created for the Portal by MACAN to provide information for natural resource management and planning purposes.