气象学报(英文版)
氣象學報(英文版)
기상학보(영문판)
ACTA METEOROLOGICA SINICA
2001年
1期
21-28
,共8页
丁国安%徐晓斌%罗超%汤洁%向荣彪%颜鹏%李兴生
丁國安%徐曉斌%囉超%湯潔%嚮榮彪%顏鵬%李興生
정국안%서효빈%라초%탕길%향영표%안붕%리흥생
surface O3 concentration (SOC)%clear day%background condition
The characteristics of surface O3 on clear days at Waliguan Observatory, Lin' an regional station and Longfengshan regional station in China were analyzed in this paper. The three stations belong to Global Atmospheric Watch (GAW) of WMO. There was obvious daily variation on clear days at Lin' an, with maximum (42.9 ppb) and minimum (20.3 ppb) of daily range appearing in spring and summer, respectively. The daily variation was more regular at Lonfengshan than at Lin' an. The maximum (about 27 ppb) appeared in autumn at Longfengshan. There was no obvious daily variation and also daily range was smaller in otherseasons except weaker daily variation in summer at Waliguan. But the surface O3 concentration (SOC) in summer was higher than that in winter at Waliguan. The SOC on clear days of summer at Waliguan was over 20 ppb higher than at Longfengshan and Lin' an. The global radiation and NOx concentration were the main factors which control the SOC on clear days at Longfengshan and Lin' an, and played important role in different seasons and areas. The transportation of air flow around the area of Qinghai-Xizang (Tibet) Plateau was the main cause for high SOC and weak daily variation in summer at Waliguan. The similar effect of transportation was obtained at the Mauna Loa Observatory. The distribution characteristics of SOC increasing with height in the troposphere determined the difference of SOC between East China and West China.