大气科学2011,Vol.35Issue(6):1159-1168,10.
平流层气溶胶与多种微量气体以及温度的关系
The Relation of Stratospheric Aerosols with Trace Gases and Temperature
摘要
Abstract
The HALOE (Halogen Occultation Experiment) dataset is used to study the relation of stratospheric aerosols with trace gases (O3, H2O, HC1, NOX, CH4, and HF) and temperature in a period of relative volcanic quiescence. The lag-correlation analysis shows trace gases and temperature are significantly related to aerosol surface area density. Characteristics of the relevance vary with different components. Temperature is negatively correlated with aerosol for 70 - 20 hPa over low-and mid-latitudes. Standardized multiple linear regression demonstrates that greenhouse gases are the primary direct contributor for temperature change, and the direct contribution of aerosols is much less. The impact of aerosols on the stratosphere is simulated with the two-dimensional model SOCRATES (Simulation of Chemistry, Radiation, and Transport of Environmentally important Species). The response of trace gases and temperature coincides with the analysis of the HALOE. The rangeability of temperature is much less than that of aerosols. The result suggests that the stratospheric heterogeneous processes on aerosol surfaces are important for the relation between aerosols and trace gases in the aerosol-enriched layers. The radiation effect of aerosolsis cooling in the period of relative volcanic quiescence, which is different from the warming effect after volcanic eruptions. The phenomenon depends on the aerosol contents. The indirect radiation effect via heterogeneous processes is stronger than the direct effect of aerosols themselves, but the total radiation effect makes little impact on temperature.关键词
平流层气溶胶/微量气体/温度变化/滞后相关/二维数值模式Key words
stratospheric aerosol, trace gas, temperature change, lag correlation, 2D model分类
天文与地球科学引用本文复制引用
蔡宏珂,郭静超,周任君,刘鹏兵,傅云飞..平流层气溶胶与多种微量气体以及温度的关系[J].大气科学,2011,35(6):1159-1168,10.基金项目
国家重点基础研究发展规划项目2010CB428603、2010CB428601,国家自然科学基金资助项目40705014、40633015,中央高校基本科研业务费专项资金WK2080000011 ()