SD-WACCM模式对平流层化学组分的模拟研究

SD-WACCM modeling study on the chemical components in the stratosphere

利用美国大气研究中心开发的全球气候模式,对2008年平流层的化学组分(HNO3、HCl和O3)进行了模拟研究,并结合了MLS卫星资料进行了对比分析。结果表明,模式可以较好地再现平流层的各化学组分的时空分布状况。并选取了8个区域,将模拟的2008—2009年O3柱浓度与臭氧监测仪资料对比,结果表明,模式可以较好地再现全球O3总量的季节变化情况。

The specified dynamics version of the whole atmosphere community climate model, devel- oped by the National Center for Atmospheric Research, was used to simulate the stratospheric chemical components（ HNO_3, HCl,O_3 ） in 2008. Meanwhile, the comparison with the MLS satellite observations was also conducted. Results showed that the model reproduced the spatio-temporal distribution of HNO_3, HCl and O_3 in the stratosphere quite well. Eight regions were globally chosen to evaluate the simulated O_3 column loading against the OMI-observation data during 2008-2009. The modeling results reasonably ex- hibited the seasonal variation of total O_3 amount over all regions.