气象科学2017，Vol.37Issue(3)：348-358,11.DOI:10.3969/2015jms.0073
1616-1911年河南省异常洪涝灾害的时空特征及其成因
Spatial-temporal characteristics and its causes of flood disasters in Henan province from 1616 to 1911
摘要
Abstract
By classifying and sorting the flood disaster records of Henan province from 1616 to 1911,the grade sequence of flood disaster is established.Moreover,the temporal and spatial difference law of the abnormal flood in Henan was studied by using the methods of Morlet wavelet transform and spa tial clustering,etc.,and the response of the occurring flood to the East Asian summer monsoon and the variation of the solar activity was discussed.Results show that there are four primary periods of 80 a,30 a,20 a and 9 a for the outbreak of flood disaster in Henan province.In the periods with different air temperature,the intensity of flood disaster in the northern areas and in the climatic cold period is greater than that in the southern areas and in the climatic warm period,which are related to the precipitation distribution and the water area distribution.The great difference of flood intensity response to East Asian summer monsoon between southern and northern Henan is obvious.In the strong (weak) East Asian summer monsoon years,the systematic position of monsoon tends to north (south),so it is easy to cause floods in the northern (southern) areas.The correlation between the two factors at different time scales has great difference.At the time scale of 100 or less than 100 years,the East Asian summer monsoon has a significant effect on the flood in southern Henan;at the 200 years time scale,the East Asian summer monsoon has a much more significant effect on the flood in northern Henan.The flood disaster tends to occur when the sunspot number reaches or nearly reaches the extreme value,and the occurrence frequency is larger during maximum value M than that during minimum value m.The decade cycle of flood in northern Henan has a significant response to the changes of Sunspot Cycle Length (SCL) at various time scales,while the floods in southern Henan only have a significant response to the changes of SCL at the 100 years time scale,that is,it will be beneficial to reduce the floods in northern Henan when the SCL becomes longer (the sun activity die down),and conversely,it will be conductive to the increasing occurrence of floods.The flood change in Henan province may be the results of the interaction between the solar activity and the East Asian summer monsoon.This paper further revealed that the historical flood oc currence and formation has an important significance for correctly predicting the future trend of drought and flood.关键词
河南省/洪涝/时空特征/东亚夏季风/太阳活动Key words
Henan province/Flood/Spatial-temporal characteristics/East Asian summer monsoon/Solar activity分类
天文与地球科学引用本文复制引用
李兴宇,毕硕本,李栋梁,赵显富..1616-1911年河南省异常洪涝灾害的时空特征及其成因[J].气象科学,2017,37(3):348-358,11.基金项目
公益性行业(气象)科研专项(GYHY201506001-1) （气象）
国家自然科学基金资助项目(41271410) （41271410）
