华中师范大学学报（自然科学版）2017，Vol.51Issue(3)：370-377,388,9.
不同时间角度下的中国霾日数时空变化格局研究(1961年～2015年)
Spatiotemporal change pattern of haze days from different time perspective in China (1961～2015)
摘要
Abstract
Frequent haze weather has become one of the focuses concerned by various circles of the society.In the present work,2474 station data.From the perspective of interannual,monthly and weekly changes,variation characteristics of haze days in China from 1961 to 2015 were calculated with a variety of methods such as linear trend and inverse distance weight interpolation.The results show that:on the inter-annual scale,average annual haze days present increasing trend with fluctuation,which exhibits three section changes in detail,including increase from 1961 to 1980,stable from 1981 to 2000 and rapid raise from 2001 to 2015.On the monthly scale,on one hand average annual haze days from January to December display a ‘U’ shaped distribution.On the other hand,average annual haze days in all month reveal a tendency of increase.On the weekly scale,average annual haze days in China from Monday to Sunday follow the decreaseincrease-decrease pattern,while change little.The average annual haze days from Monday to Sunday increased consistency from 1961 to 2015.In space distribution,average annual haze days tend to have the spatial pattern of "southeast increasing significantlynorthwest increasing not significantly".The decadal average annual haze days in Northern China,Central and East China and Southern China area gradually vary with time from the negative anomaly evolution to positive anomaly.Area with average annual haze days in January and December more than 2.7 d/a has a wide distribution,while that with the other months range is relatively small.Area with average annual haze days from Monday to Sunday more than 4.5 d/a are mainly distributed in the area of Beijing and Tianjin,the Yangtze River Delta,Pearl River Delta,Shanxi and Shaanxi area.By contrast it is found that in different weeks the average annual haze days in spatial distribution changes little.关键词
霾天气/多时间尺度/月际变化/周变化/时空格局/城市化/中国Key words
haze/multi-time scale/monthly change/weekly change/spatiotemporal pattern/urbanization/China分类
天文与地球科学引用本文复制引用
孔锋,吕丽莉,方建,张黎黎,王卓妮..不同时间角度下的中国霾日数时空变化格局研究(1961年～2015年)[J].华中师范大学学报（自然科学版）,2017,51(3):370-377,388,9.基金项目
中国气象局气象软科学重点项目(2017[21]) （2017[21]）
浙江省科技计划项目公益技术研究社会发展项目(2014C23004) （2014C23004）
国家自然科学基金创新研究群体项目(41621061). （41621061）
