基于气象角度的济阳四季变化分析(英文)

[目的]从气象角度分析济阳四季变化特征,以期为该地区农事耕作和农业灾害防范提供参考依据。[方法]利用济阳地面气象观测站1981~2010年间的逐侯气温资料,从气象角度分析了济阳近30年四季开始时间和持续期的变化特点。[结果]近30年来,济阳春季和冬季开始时间呈现出提前的趋势,春季开始时间在四季中变化最为明显;夏季和秋季开始时间呈现出缓慢推迟的趋势,秋季开始时间变化较夏季开始时间变化明显。春季和冬季持续时间呈现出缩短的趋势,冬季持续时间较春季持续时间变化明显;夏季和秋季持续时间呈现出增长的趋势,夏季持续时间变化线性倾向率为0.042侯/年,在四季中变化最为明显。[结论]该研究结果显示在全球气候变暖的背景下,济阳四季的变化表现为夏季持续时间明显增长,春季和冬季持续时间缩短。

Analysis of Season Change in Jiyang from Meteorological Standpoint

[Objective] The aim was to analyze changing characters of four seasons in Jiyang,providing references for farming and disaster prevention in the area.[Method] Changing characters of initial time and lasting periods of four seasons in Jiyang for 30 years were analyzed from meteorological standpoint with weather information from 1981 to 2010 observed in surface meteorological observation in Jiyang.[Result] Recent 30 years,initial time of spring and winter in Jiyang were earlier than before,especially for spring.In contrast,initial time of summer and autumn were later,especially for autumn.In addition,periods of spring and winter declined and the latter changed more significantly.Meanwhile,periods of summer and autumn extended and rate of linear trend for summer period was 0.042 hou/year.[Conclusion] The research indicated that lasting days of summer extended significantly and of spring and winter shortened under the background of global warming.