The Gulf of Mexico Coastal Acidification Network (G-CAN) Webinar Series Presented:

Dr. Xinping Hu, Department of Physical and Environmental Sciences at Texas A&M University, Corpus Christi
“Estuarine Acidification A Subtropical (Texas) Flavor”
on 18 May 2017, 2:00 PM EDT

The link to the webinar can be found at


Estuarine carbonate chemistry is controlled by a myriad of factors, including the endmember (river and ocean) variations and biogeochemical reactions (processes that alter acid-base chemistry). In the context of ocean acidification, the community started exploring estuarine acidification in recent years with most of the attention focusing on ocean endmember changes only. However, how changes in river inflow may influence estuarine carbonate chemistry remains elusive. The unique nature of lagoonal estuaries in the northwestern Gulf of Mexico, including limited exchange with the open Gulf waters and varying river endmember composition, makes these coastal water bodies unique to studying this problem. Preliminary results will be presented at this webinar, and the effects of river inflow changes, hypoxia, and within estuarine biogeochemical processes on the changing estuarine carbonate system will also be discussed. The observations made in these subtropical estuaries could be representative of other freshwater-starved coastal systems.


Dr. Xinping Hu received his B.S. degree in Chemistry from Peking University in 1997, and he got his Ph.D. degree in Oceanography from Old Dominion University in 2007. Afterwards, he worked as a postdoc and then an assistant research scientist in the Department of Marine Sciences of the University of Georgia. In 2012, Dr. Hu joined the Department of Physical and Environmental Sciences in Texas A&M University – Corpus Christi as an assistant professor.

Dr. Hu has worked on a variety of issues related to carbonate chemistry in estuarine and oceanic waters, sediment geochemistry, and marine carbon cycle. His research has been supported by federal (NOAA and NSF), state (Texas General Land Office, Texas Sea Grant, Texas Water Development Board), local (Coastal Bend Bays and Estuarine Program), and private (Gulf of Mexico Research Initiative) funding agencies.

Dr. Hu’s ongoing study funded by NOAA is to examine the influence of freshwater inflow and hypoxia on the acidification of subtropical estuaries in south Texas. Recently, he received an NSF CAREER award and will soon start investigating the impact of hydrologic control on CO2 fluxes and acidification in estuaries in the northwestern Gulf of Mexico.