Analytical studies from processes to decadal scale air-sea coupled variability

Abstract

Two major fluids of the earth are the ocean and the atmosphere, each of which influence the other. The influence of the atmosphere onto the ocean is strong and clear, while the opposing oceanic influence onto the atmosphere is not well understood. In this paper, several results of co-variability of the ocean and the atmosphere and interaction between them are introduced. Specific topics are seasonal variability over the tropical Pacific, decadal variability over and around the North Pacific, and mid-latitude air-sea interaction from a point of view of process-oriented studies. In order to identify oceanic impacts onto the atmosphere, especially using data analysis, it is useful to detect key features. Such key features are propagation signal commonly found in the atmosphere and the ocean with a speed of oceanic propagation for annual variability over the tropical Pacific, oscillation in the atmosphere for the decadal variability, and atmospheric signatures on oceanic spatial scales for the mid-latitude air-sea interactions. Some ideas behind the studies are also introduced.