气溶胶指数与臭氧总量的相关性初步研究

A Preliminary Study on the Relationship between Aerosol Index and Total Ozone

吸收性气溶胶指数(absorbing aerosol index,AAI)是一种定性反映对紫外线具有吸收作用的气溶胶即吸收性气溶胶的存在与空间分布特征的重要参数。吸收性气溶胶指数和臭氧总量均通过星载仪器观测紫外后向辐射反演得到,由于臭氧在吸收性气溶胶指数的反演通道也存在弱的吸收作用,因此臭氧总量和气溶胶可能存在相关性。为了研究气溶胶指数与臭氧总量的关系,采用2013、2014年风云三号气象卫星紫外臭氧总量探测仪(FY-3/TOU)的臭氧总量和吸收性气溶胶指数数据,分析了青藏高原区域吸收性气溶胶指数与臭氧总量空间分布特征的关系。分析结果表明,高原上空吸收性气溶胶指数与臭氧总量之间存在正相关关系。

Absorbing aerosol index （AAI） is an important parameter that qualitatively reflects the existence and spatial distribution of absorbing aerosols. The inversion of the aerosol index and the ozone are all obtained by the ultraviolet back radiation of the spacecraft, and the absorbable aerosols and ozone have different degrees of absorption of the UV rays. The total amount of ozone and absorbing aerosol index may be relevant due to the weak absorption of ozone in AAI retrieval channel. In order to study the relationship between the absorbing aerosol index and the total amount of ozone, the total amount of ozone and absorbing aerosol index data of FY-3 / TOU for Tibet plateau were analyzed from 2013 to 2014. The results show that there is a positive correlation between the aerobic index and the total amount of ozone above the plateau.