Study for information connotation evolution and model

Since Shannon theory facing to the world, it provides highly clear definitions of information and model of communication respectively. Moreover it sets a significant fundament of information, and provides a great value to researches and applications for later. By comparative method, model analysis, and multi-degree metric study, this paper focuses on studying information connotation, expression of modern information characteristic, and related formula based on combing the character of up-to-date information. Thus the paper provides an innovation definition of modern information connotation and related evolution metric formula. It is fully of great theory meaning and actual application significance for the today ocean-data communication.