湖北省历史干湿气候的世纪振动及其比较  

The Century Oscillation of Dry-Wet Index in the Latest 2000 Years of Hubei and Its Comparison

作　　者：吴宜进[1] 蔡述明[2] 王万里[3] 

机构地区：[1]武汉大学人文科学学院,武汉430072 [2]中国科学院测量与地球物理研究所,武汉430077 [3]湖北省气象局,武汉430074

出　　处：《武汉大学学报（自然科学版）》1999年第5期634-638,共5页Journal of Wuhan University(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：采用干湿指数方法对近２０００ 年来湖北干湿气候变化进行了分析．结果发现本地区的气候湿润状况波动明显，气候的相对干燥与湿润大致以２ 个世纪为周期反复交替出现．近代尽管水旱灾害频繁，但仍属于近２０００年来气候演变过程中的正常振动，气候的干湿状况总体上维持在一个比较正常的水平上．湖北气候干湿变化与我国海河流域的干湿变化具有较好的一致性．同世界其它地区相比，与北美西部更接近些，与欧洲和非洲的同步性则并不明显．The Variation of Dry\|Wet Index in The Latest 2000 Years of Hubei is analyzed. It is considered that the fluctuation of climatic wetness status is obvious. The relatively Dry or wet appeared alternately by the period of about 2 centuries. Despite the frequency of flood and drought disasters occurred in recent years, those still were normal oscillation of climatic evolvement in The Latest 2000 Years. As a whole, Climatic wetness status in this area keeps relatively well\|balanced level. The Variation of Wetness in Hubei has preferable coherence with that in Haihe valley of China, much similar with that in westward of north American but without evidence of consistency with that in Europe and Africa.\;

关 键 词：干湿指数 2000年 世纪振动 湖北 气候变化 

分 类 号：P468.263[天文地球—大气科学及气象学]