Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Meteorological Science and Technology》 2014-03
Add to Favorite Get Latest Update

Investigation of Methods for Season Division in Zhejiang Province

Yu Zhenyan;Wu Lihong;Gao Dawei;Fan Gaofeng;Zhejiang Climate Center;  
Using the daily temperature data from 63stations from 1971to 2011over Zhejiang Province,combining with the phenology data,statistical calculations and comparative analysis are conducted.The results show that the seasons often start later by the method of pentad temperature and earlier or later with the methods of meteorology and climatology;the abnormal season start dates caused by different methods exhibit different characteristics in various regions.The main reasons for the abnormal season start dates are analyzed,and the results indicate that abnormal cases occur mainly when the temperature fluctuation of several days leads to the unsatisfied conditions of season change,but the lasting time of the fluctuations is not long generally,mainly in 3to 5days,and the fluctuation range is not great.So considering fully the advantages and disadvantages of various methods and the influence of temperature fluctuation,a method is presented,which is reasonable relatively and applicable to Zhejiang Province and can solve the problems of these methods.The provincial average start dates of seasons are 16March,29May,30September,and 8December.The frequency of seasons starting earlier or later reduced obviously,compared with other methods,and the result is more in line with the phenology in each region.
【CateGory Index】: P463.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved