摘要
利用1990 —1994 年地面O3 浓度观测和有关气象资料,进行统计处理后,通过深入详细的对比分析,确立了上海市高浓度O3 日或光化学污染的12 个气象指标,引入权重概念表示各个气象指标对出现高浓度O3 日的重要性次序:高压天气、f< 60 % 、珡NL <2 .5/10 、珡NS < 6 .0/10 ,其次是ts ≥7 h .
Surface ozone concentrations and relevant meteorological data from 1990—1994 were analyzed.Twelve meterorological indexes for high ozone concentration day (photochemical pollution day) were identified.A “weight” concept was into these meteorological indexes to describe the order of importance.It was found that the high pressure weather system was the most important index, f <60%, N \-L<2.5/10,and N s<6.0/10 were the second\|most important indexes,and t s≥7?h was the third\|most important index. F is the relative humidity measured at 14?h; N L and N s are the average values of four observations a day for the lower cloud cover and the total cloud cover,respectively; t s is the daily sunshine hour.
出处
《环境科学学报》
CAS
CSCD
北大核心
1999年第5期465-470,共6页
Acta Scientiae Circumstantiae
关键词
气象指标
地面
臭氧浓度
上海
光化学污染
ozone,meteorological indexes,Shanghai,photochemical pollution.