地面臭氧光化学过程规律的初步研究

The Primary Study on the Regularity of Atmospheric Photochemical Process for Surface Ozone

给出了 １９９６年夏季在广东肇庆鼎湖山对光化辐射、地面 Ｏ３、 ＮＯ、 ＮＯ２浓度的观测结果，对影响地面Ｏ３、ＮＯ、ＮＯ２的主要因子进行了分析。晴天，地面Ｏ３、ＮＯ、ＮＯ２浓度有明显的日变化；阴天，它们的日变化比较复杂。晴天和阴天．在ＩｎＱ ＵＶＢ／ｍ和ｌｎＱｖｉｓ／ ｍ（其中ＱＵＶＢ为紫外 Ｂ辐射， Ｑｖｉｓ为可见光辐射， ｍ为大气质量）与地面 Ｏ３、 ＮＯ、ＮＯ２浓度、整层大气水汽含量（ｑ１、ｑ２、ｑ３、ｑ４）之间存在着很好的相关关系。利用得到的关系式计算了地面Ｏ３浓度，在紫外和可见光波段，计算值与观测值符合得都比较好。

The observational results of surface ozone, NO, NO2 concentrations and solar actinic radintion during the summer of 1996 in Dinghushan biosphere reserve, Zhaoqing City, Guangdong Province are given. Good results were got from the analysis of key factors affecting the surface ozone, NO, NO2 concentrations. In the clear sky condition, surface ozone, NO, NO2 show a clear diurnal variation, and in cloudy sky condition, their diurnal variation is complicated. Both in clear sky and in cloudy sky conditions, there are good correlations between solar actinic radiation factors (lnQUVB / m and InQvis / m, QUVB is the ultravinlet B radiation, Qvis the visible radiation, m is the air mass) and the concentrations of the surface ozone, NO, NO2 and the water vapor content in whole atmospheric column (q1, q2, q3, q4 ). At last, the surface ozone concentration was calculated by using the formula we got, results show that calculated values are close to the observed both in UVB band and in visible band.