Isothermal Water Mass in the Bottom Water at the Bay Mouth of Jiaozhou Bay?. Isothermal Water Mass scale and location

Abstract Based on the survey data on Jiaozhou Bay in May, June, July, August, September and October 1980, the bottom water temperature and its horizontal distribution in Jiaozhou Bay were studied. The results showed that the author put forward the definition of isothermal water mass and determined the scale and location of the isothermal water mass. According to Yang Dongfang’s definition of “Isothermal Water Mass”, it was revealed that the temperature of isothermal water mass in the inner part of the bay mouth was higher than that in the outer part of the Bay mouth in May, June, July and August. In September and October, the temperature of isothermal water mass in the inner part of the bay mouth was lower than that in the outer part of the Bay mouth. Moreover, the number, location, scale and temperature variation sequence of isothermal water masses were determined by the sea water temperature and its variation trend in both June and October.