Concentrative function and its primary application

摘要

In this paper, a concentrative function used in statistics is designed to present the extent in which an elementary field concentrates in the spatial distribution. Its characteristics are discussed and its availability proved. From its application in the atmospheric and oceanic sciences, we can find some inter- esting phenomena. For example, there is a clear seasonal concentricity in the occurrence of storms in ev- ery oceanic area in a year. The storm-dense-months correspond to such an geographical place that goes around anti-clockwise in the tropical oceanic areas.