摘要
本文介绍一个简单、经济的适用于各种多层大气环流模式中计算臭氧加热率的参数化方案,利用这一方案,可根据臭氧总量气候观测值及其垂直分布资料计算臭氧加热率,也可以在模式中加入臭氧方程,用预报的臭氧含量计算臭氧加热率.用此方案对单站气候资料试算,结果指出,随着高度的增加,臭氧吸收太阳辐射对大气太阳加热率的贡献逐渐接近、达到并在平流层50hPa附近明显超过其它物质如水汽的贡献.此方案用于九层大气环流模式时,对其辐射加热率的计算有较理想的改进,并使模拟的大气温度垂直分布更符合观测事实.
A parameterized scheme that is simple, economical and applicable to various multi-layer models for calculating ozone heating rate is introduced in this paper. By using this scheme, we can compute ozone heating rate according to the observational data of ozone or the ozone distribution predicted by an ozone equation that is added in the model. Results of the test computations with the climatological data of some stations show that the contribution of ozone to the total solar heating rate in the atmosphere increases with height. Above 350hPa, heating rate caused by ozone gradually approaches, equals and at 50hPa obviously exceeds that caused by other components in the atmosphere such as water vapour etc., which verifies that ozone is the most important heat source in the stratosphere. Applying the above scheme to Chen and Kuo's nine-layer general circulation model, we see clearly that taking ozone into account improves the computation of radiative heating rate in the model effectively and improves the agreement of the simulated temperature field with the observation.
出处
《大气科学》
CSCD
北大核心
1993年第5期513-522,共10页
Chinese Journal of Atmospheric Sciences
基金
国家自然科学基金
关键词
臭氧
厚度
加热率
大气
温度场
Ozone depth
Heating rate
Parameterized scheme.
