北京师范大学学报（自然科学版）Issue(4)：404-411,8.DOI:10.16360/j.cnki.jbnuns.2015.04.014
1951-2012年中国降水集中度和集中期的时空格局∗
Variations in the spatiotemporal patterns of precipitation concentration degree and precipitation concentration period from 1951 to 2012 in China
摘要
Abstract
The year of 1 978 was taken as a dividing point in the study of variations in precipitation concentration degree (PCD)and precipitation concentration period (PCP ).It was found that PCD had a significant north-south pattern,but PCD had a significant east-west pattern in Northern China.Fluctuations in PCD showed a decreasing trend,PCD fluctuations were larger pre-1 978 and smaller post-1 978.PCP mainly fell between 26 and 30 weeks,1-3 weeks of advance or lag were noted.Southern-based PCP mainly postponed, Northern-based PCP advanced.PCP showed a weak decreasing trend,with significant reduction pre-1 978 and significant increase post-1 978.关键词
降水集中度/降水集中期/中国/区域差异/时空格局Key words
precipitation concentration degree (PCD)/precipitation concentration period (PCP)/China/regional differences/spatial and temporal pattern分类
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孔锋,方佳毅,刘凡,方建,史培军..1951-2012年中国降水集中度和集中期的时空格局∗[J].北京师范大学学报（自然科学版）,2015,(4):404-411,8.基金项目
国家自然科学基金创新研究群体资助项目(413221001) （413221001）
国家重大科学研究计划(973)资助项目(2012CB955404) （973）
