광주 지방의 강수량 변화와 Anomalies

Interannual Variabilities of the Precipitation in Kwangju and Its Anomalies

In this paper it is discussed about interannual variation characteristics of precipitation amount of Kwangju and relationship with the SST anomaly. The daily data from 1940 to 1997 were used for precipitation amount and 2.5×2.5˚ grid of NOAA is also used for SST. The annual mean precipitation amount of Kwangju was 1287.5㎜, standard deviation was 306㎜, and variability was 23.77%, and then absolute variable value was 349㎜. The precioitation amount had a tendency to increase at 2.1㎜/year and the amplitude increased at ±3.77㎜/year. The positive anomaly of the precioitation amount presented seven times and the negative anomaly did eleven times. The annual mean precioitation days were 126.2 and standard deviation was 12.77, variability was 10.1% and then the absolute variable value was 9.77.We can conclude that the SST distribution of the North Pacific is the one factor of precioitation amount change of Kwangju.