The carbonate system of water of the inner estuary and near shore in the Mahanadi estuary, Bay of Bengal, India was studied in summer season of 2014. Physicochemical parameters like temperature, pH, salinity, total alkalinity (TA), dissolved inorganic carbon (DIC), total organic carbon (TOC) and chlorophyll a (chl a) were measured in order to study their role in controlling the CO2 flux. The estuary acted as a sink for atmospheric CO2 triggered by the allochthonous organic carbon input. The average CO2 flux was recorded as -0.36±13.29 μmol/m2h in inner estuary and -10.36±2.00 μmol/m2h in near shore region. The temperature and salinity were found to be significantly and positively correlated with fCO2 (water) indicating their deterministic role in influencing air-water CO2 flux.
Pattanaik S., Sahoo R. K., Satapathy D. R., Panda C. R. & Choudhury S. B., 2016. Variation in carbonate system and air-water CO2 flux during summer in the Mahanadi Estuary, India. International Journal of Advances in Agricultural & Environmental Engineering (IJAAEE) 3(2):387-390. Article.