摘要
采用Mann-Kendall法进行年日照时数进行突变检验方法,对廉江国家气象观测站1963-2015的年日照时数、季节日照时数的年际、年代际的线性倾向率变化特征分析,得出其气候变化规律为:廉江年日照时数呈现减少趋势,其突变的时间节点是1972年;其中春季减少速率最大,夏季减小速率最小,且春季日照时数变化趋势与年际变化趋势基本一致。
Based on the mutation variation characteristics of annual test of annual sunshine duration by sunshine hours, seasonal sunshine Mann - Kendall method, the time of linear trend rate of interannual and interdecadal of national meteorological observatory during 1963-2015 in Lianjiang were analyzed, it is concluded that the annual sunshine hours showed a trend of decrease, the mutation of time node is 1972; in which the biggest reduce rate is in spring, which it is least in summer, and the spring sunshine time change tendency and the interannual variation tendency are similar.
出处
《气象研究与应用》
2016年第3期91-93,共3页
Journal of Meteorological Research and Application
关键词
日照时数
气候特征:突变
sunshine duration
climatic characteristic
mutation
