影响东海气候的太阳活动信息分析
Analysis on the information of solar activities impacted on the climate over East China Sea
-
摘要: 采用逐次滤波法逐次提取东海气温资料序列中蕴涵的太阳活动影响信息并加以分析,发现东海气候年代际变化特征十分清楚,主要表现为:(1)突变性,东海夏季7月海平面层及对流层大气温度场在过去半个多世纪中发生过一次急剧变化,突变点是1978年7月.从1978年7月由历时30多年的温度偏低时期跃变为持续高温时期,高温期持续至20世纪末,升温幅度超过0.4℃.资料分析表明,整个对流层东海夏季大气温度都具有这种年代际变化特征;(2)高空气候持续增温型,东海夏季7月平流层中部10 hPa大气温度表现为一种波动式的持续升温过程,50多年来温度升高4℃,年升温率超过0.075℃/a.东海平流层底部100 hPa温度也具有持续升温的特点,从1948年至今呈缓慢升高的趋势,53 a升高了1.9℃,升温率为0.036℃/a;(3)周期性,东海不同高度大气温度都具有显著程度不同的22 a周期性年代际变化特征,22 a周期分量的振幅由高空到低空迅速减小,表明22 a周期高空清楚,低空不太明显.东海对流层中部和平流层底部还具有显著的11 a周期性年代际变化.据分析认为22 a周期是太阳黑子磁场磁性变化周期所激发,11 a周期与太阳黑子相对数11 a周期相吻合,二者均为太阳活动在大气气候中的反映.Abstract: The information of influence of solar activities in the data series is picked-up by using step-by step filtering and analyzed.It is revealed that the interdecadal variability of the monsoon climate over the East China Sea is very clear and represented in the following aspects.(1) The abrupt change.The atmospheric temperature at the sea level pressure layer and in the troposphere in July (summer) over the East China Sea has under gone a sharp change in the past half century which occurred in July 1978.Since July 1978,a period of persistent high temperature has began after a period of more than 30 a with comparatively low temperature.It lasted until the end of the 20th century.The temperature rising was more than 0.4℃.The data analysis indicates that the atmosphere temperature at all levels in the troposphere over the East China Sea in summer has this interdecadal variability.(2) Persistent increasing of the air temperature at the upper levels of the atmosphere.The atmosphere temperature at the middle part of the stratosphere (10 hPa) over the East China Sea in July (summer) is a persistent process of temperaturer ising with a wave form.The temperature has increased over 4 in the recent more than 50 years.The yearly ratio of the temperature rising is more than 0.075℃/a.The temperature at the bottom of the strato sphere (100 hPa) over the East China Sea also has the characteristic of the persistent rising of the temperature,which has shown a tendency of slowly rising since 1948 and has increased by 1.9℃ in the recent 53 a.The yearly ratio of the temperature rising is 0.036℃/a.(3) The periodicity.The air temperatures at different atmosphere levels over the East China Sea have the interdecadal variability with a 22 a period in various degrees.The amplitudes of the 22 a components rapidly decrease from upper to lower atmosphere levels.This indicates that the 22 a period is clear at the upper air,but not clear at the lower levels.There are also obvious decadal variations with an 11 a period at the middle part of the troposphere and the bottom of the stratosphere over the East China Sea.Based on the analysis,it is known that the 22 a period is caused by the period magnetic variation of the magnetic field of the sunspots.The 11 a period corresponds to the 11 a period of the relative number of the sunspots,and both are the reflection of the solar activity in the atmospheric climate.
-
Key words:
- climate over East China Sea /
- interdecadal variability /
- solar activity
-
HANSEN J,LEBEDEFF S.Global surface air temperature:update through 1987[J].Geophys Res Lett,1998,15:323-326. 吴德星,林宵沛,兰健,等.太平洋年代际变化研究进展浅析[J].海洋学报,2006,28(1):1-8. NITTA T,YAMADA S.Recent warming of the tropical sea surface temperature and its relationship to the northern hemisphere circulation[J].J Meteor Soc Japan,1989,67:375-383. CHAO Y,GHIL M,MCWILLIAMS J C.Pacific inter decadal variability in this century's sea surface temperatures[J].Geophys Res Lett,2000,27(15):2 261-2 264. 秦曾灏,李永平,黄立文.中国近海和西太平洋温带气旋的气候学研究[J].海洋学报,2002,24(1):105-112. 马继瑞,田素珍,郑文振,等.太平洋水位站相对海平面升降趋势分析[J].海洋学报,1996,18(5):14-22. 闫俊岳,李江龙.东海及邻近地区百年来的温度变化[J].海洋学报,1997,19(6):121-126. KODERA K.Solar cycle modulation of the North Atlantic oscillation:implication in the spatiall structure of the NAO[J].Geophysical Research Letters,2002,29(8):1 029-1 038. BOND G,KROMER B,BEER J,et al.Persistent solar influencee on north atlantic climate during the Holocene[J].Science,2001,294:2 130-2 136. RUZMAIKIN A,FEYNMAN J.Solar influencee on a major mode of atmospheric variability[J].J Geophysical Research,2002,107,D14(10):7-11. AGNIHTRI R,DUTTA K,BHUSHAN R,et al.Evidence for solar forcing on the Indian moimoon during the last millennium[J].Earth and Planetary Science Letters,2002,198. 汤明义,尹杰,曲如美,等.东海黑潮途经海域岛屿测站表面海温年变化及年际变化特征[J].海洋学报,1994,16(3):12-21. 田素珍,马继瑞,郑文振,等.太平洋月平均水位变化中的周期成分[J].海洋学报,1996,18(1):11-19. 侯章栓,李晓东.近百年全球气候变化与外强迫因子信号检测[J].北京大学学报,2000,36(5):641-648. 刘勇华,刘瑞源,扬少凤,等.2000年7月重大太阳事件的极隙区纬度观测研究[J].极地研究,2001,13(3):205-212. 刘绍亮,郭建广.1994年2月21日行星际激波引起的磁暴[J].空间科学学报,2002,22(3):203-211. 刘绍亮,李立文.南向行星际磁场事件与磁暴关系的研究[J].地球物理学报,2002,45(3):297-305. 王旦文,冯学尚.1998年5月空间天气大事件的地磁响应[J].空间科学学报,2001,21(2):159-164. 崔秋文,陈英方,等.地磁场研究与应用[J].国际地震动态,2001,6:8-12 丛友滋,韩国忠,王慧艳.5000年B.P.以来地磁场要素时空变化特征及其与环境变化关系的讨论[J].黄渤海海洋,1995,13(3):20-26. 贾英东,李毅,王水,等.磁场重联中离子轨道的混台模拟研究[J].地球物理学报,2003,46(2):145-152. 乐贵明,叶宗海,龚菊红,等.银河宇宙线对1991年3月日冕物质抛射的监测[J].地球物理学报,2003,46(2):139-144. 曹晋滨,马志伟,路立,等.行星际磁场By分量对地球磁层顶场向电流调制[J].地球物理学报,2003,46(2):156-167. 安振昌.2000年中国地磁场及其长期变化冠谐分析[J].地球物理学报,2003,46(2):68-72. 章基嘉,葛玲.中长期天气预报基础[M].北京:气象出版社,1983.341-342. 尚社平,郭兼善.不同地磁扰动事件期间全球电离层的扰动形态分析[J].地球物理学报,2003,46(1):11-17. 曲维政,邓声贵,黄菲,等.太阳磁场磁性指数异常变化对北半球中纬度气候的影响[J].地球物理学报,2004,47(3):70-81. -
计量
- 文章访问数: 928
- HTML全文浏览量: 9
- PDF下载量: 1235
- 被引次数: 0
下载:
