Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (32): 194-198.doi: 10.11924/j.issn.1000-6850.casb15060060

Special Issue: 农业气象

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Analysis of Climatic Statistical Characteristics of the Spring Final Snow Day in Weifang

Zhang Qin1, Xu Fengxia2, Wang Shanfang1, Han Xiao1, Zhang Xiuzhen1   

  1. (1Weifang Meteorological Bureau, Weifang Shandong 261011;2Shouguang Meteorological Bureau, Shouguang Shandong 262700)
  • Received:2015-06-09 Revised:2015-07-21 Accepted:2015-07-24 Online:2015-11-16 Published:2015-11-16

Abstract: In order to better analyze the climate characteristics of spring final snow day in Weifang, thereby improve the accuracy of forecasting spring snow and better serve the local meteorological disaster prevention and mitigation, spatial and temporal distribution of the final snow day, affecting system and the final level of daily precipitation were analyzed using the data of daily rainfall of 2004-2013 winter half-year in Weifang and MICAPS routine meteorological data. The results showed that: (1) the trend of the final snow day was gradually postponed at an annual rate of 3.69 days; the final day of the spatial distribution of snow was not very obvious; (2) there were most occurrences of reflow process final snow, followed by a cold front trough type, the number of cold current snowfall process and cyclones was the least; (3) the order of magnitude of the process of the final snow day was mainly snow, the precipitation phase might be pure snow or sleet, but for the emergence snowfall of greater extremes, the precipitation phase was rain to snow or rain and sleet.