CHARACTERISTICS OF TIME-SERIES VARIATION OF SEAWATER TEMPERATURE, SALINITY AND TIDE LEVEL IN THE ARIAKE AND YATSUSHIRO SEAS BASED ON OBSERVATION DATA

Abstract

 This paper is described results of examination in connection with the time-series data of seawater temperature, salinity and tide lebel of the Ariake and Yatstushiro Seas and the meteorological and oceanographic data arround of the Ariake and Yatstushiro Seas. Result of the examination, It was found that the seawater temperature of the Ariake and Yatsushiro Seas are influenced by the sea surface temperature of the nothern East China Sea and temperature arround the Ariake and Yatsushiro Seas, and the seawater temperature variation to be one of the variable factors of tide level was suggested. Increase of river flow in the rainy season greatly reduce the salinity of the bay mouth and it affects the marine ecosystem.