SCL与中国东部气候年代际变化  

SCL and Decade Change of Climate in East China

作　　者：柳艳香[1] 高晓清[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《冰川冻土》2002年第1期46-50,共5页Journal of Glaciology and Geocryology

基　　金：中国科学院知识创新工程重大项目 (KZCX1 10 0 2 );国家重点基础研究发展规划项目 (G19980 40 80 0 )资助

摘　　要：据宇地磁耦合原理 ,利用太阳黑子周期长度 (SCL)的变化及其与地磁场 (文中主要考虑地热 )的关系 ,模拟计算并重建了中国东部历史时期的气温序列变化 ,除了个别时段外 ,模拟曲线与修正后的竺可桢曲线十分相似 ;分析了 2 5 0 0a来中国东部气候的年代际变化 .结果表明 ,该曲线能较好地再现 2 5 0 0a来中国东部气候的冷暖变化 .对竺氏曲线中有争议的几个冷暖时段 ,如公元 15 0— 35 0年的温暖期、10 5 0— 115 0年的小气候适宜期等 ,模拟结果与后来研究者分析的结果相合 .中唐至五代的气候冷暖交替变化不稳定 .Based on spatial-geomagnetic coupling, air temperature series were simulated and reconstructed by using SCL (sunspot circle length) change and its relation with geomagnetic (on geothermal in this paper) over East China in historic times. Except individual period, the simulative curve is similar as Zhu Kezhen's climatic change curve. The decade change of climate was analyzed in East China over the last {2 500} years, which can reflect the warm-cold change of climate. There are a few disputes in some periods with Zhu's curve, for example, 150～350 A.D. was in a warm and wet period, 1050～1150 A.D. was the Little Climatic Optimum in China, when solar was activity with mean SCL of 8^0～10^0 years, similar to later researcher's result. From Mid-Tang Dynasty to Wudai Dynasty, climate change was unstable with warm-cold alternation. The climate change in the Little Ice Age in East China has been clearly revealed, which can be divided into 3 cold periods and can be sub-divided into 2～3 phases in each period. The result also shows the climate change at present. For example, from the beginning of the 1900s, air temperature was going up to the 1940s, then dropped down to the 1960_1970s, and again increases from the mid-1980s up to now.

关 键 词：太阳黑子周期长度 气温重建 气候年代际变化 中国东部 宇地磁耦合原理 

分 类 号：P461.1[天文地球—大气科学及气象学] P467