热带气象学报2017，Vol.33Issue(1)：127-133,7.DOI:10.16032/j.issn.1004-4965.2017.01.014
香港地区1968-2014年低能见度时数变化趋势特征分析
ANALYSIS OF THE TREND CHARACTERS OF THE POOR VISIBILITY HOURS IN HONG KONG IN 1968-2014 A
摘要
Abstract
In order to do the research of the trends variations of the visibility in Hong Kong,the HHT transform was used to analyze the periodic changes of low visibility hours in 1968-2014 a.The mutation point of the low visibility hours was found out based on the instantaneous energy (IE),degree of stationary (DS) and Mann-Kendall test.Then the M-K test was used to prove the correction of the mutation point.With the help of student's test,the correlations between the low visibility hours with the pollutants in 1997-2013 were also analyzed.The conclusions could be drawn as follows:the hours of poor visibility in Hong Kong are growing and their variations have 1 a,2 a,3 a,7 a inter annual variation periods and 10 a,20 a inter generational change cycles.And the hours in spring and autumn are following from that in winter,and the hours in summer are the least.Variations of the hours occur mutation at 1993.According to the test,the correlations between the hours with SO2、NOx、RSP、PM2.5、VOC、CO are significant under 0.05 level.关键词
低能见度/HHT变换/周期变化/突变/香港Key words
poor visibility/HHT transform/cycle variations/mutation change/Hong Kong分类
天文与地球科学引用本文复制引用
谢菲,吴香华,何宏让,陈则煌,卞双双,缪子青..香港地区1968-2014年低能见度时数变化趋势特征分析[J].热带气象学报,2017,33(1):127-133,7.基金项目
国家重点基础研究计划(973计划)(2014CB441405) （973计划）
国家科技部公益性气象行业科研专项项目(GYHY201006031) （GYHY201006031）
中国气象局气象软科学项目(2012-053) （2012-053）
江苏省研究生创新项目(CB10X_295Z)和江苏省青蓝工程云雾降水与气溶胶团队共同资助 （CB10X_295Z）
