Impact of Temperature Change from 1953 to 2010 on the Season Length in Lishui
Abstract：Based on the daily temperature data supplied by Lishui National Meteorological Observa- tory from 1953 to 2010, according to state delineation of the season, the trend analysis, Mann-Kendall method and moving t test were used to analyze tlme-frequency characteristics and abrupt change of the season length and temperature, in order to investigate the impact of temperature change on the season length. The results showed that： the length of summer was the longest, the next was winter, and the length of spring was near the autumn, and autumn was shorter. The trends of season length climate char- acteristics displayed such as： the spring and autumn became longer slowly, and the summer became lon- ger obviously, also the winter became more and more shorter. There was a significantly increased trend with an increased rate of 0.17℃/10a in Lishui over the past 58 years. The temperature displayed a sig- nificantly impact on the season length, especially winter. The abrupt test showed the winter length became shorter with the temperature increased at the same abrupt change time of the middle of the 1990s. Also the variation of temperature was opposite correlated to winter length, exceeded α = 0.01 confidence test.
Keywords：season lengthtemperature changeMann-Kendall testmoving t test
Publication Date：2012-05-26
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 76-80 )