基于多源遥感的香河地区气溶胶辐射特性研究  

Aerosol Radiation Characteristics Based on Multi-source Remote Sensing in Xianghe

作　　者：毛前军[1] 张晓燕 MAO Qianjun;ZHANG Xiaoyan(School of Urban Construction,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学城市建设学院,湖北武汉430081

出　　处：《环境科学与技术》2025年第4期144-152,共9页Environmental Science & Technology

基　　金：国家自然科学基金项目(52376072)。

摘　　要：气溶胶辐射强迫(ARF)是描述大气气溶胶对地气辐射平衡的主要参数。该文结合地基数据验证了2019-2023年香河地区的高级向日葵成像仪(AHI)和中分辨率成像光谱仪(MODIS)不同气溶胶光学厚度(AOD)数据集的精度。选择AHI和MODIS精度最好的AOD,进一步计算ARF,并结合云参数分析云对ARF的影响。结果表明:AHI和MODIS数据用于辐射强迫计算是可靠的,二者各有优势。在不同云类型的条件下,ARF表现不同,其中在低云时ARF最大,大气底层的ARF为(-111.00±54.03)W/m^(2),大气顶层的ARF为(-33.60±16.69)W/m^(2),大气中的ARF为(77.40±38.27)W/m^(2)。中云次之,高云时最小,约为低云时的76%。云参数中,云光学厚度与AOD和ARF相关性最高。该文有助于揭示气溶胶与云之间复杂的相互作用,深化对大气光学特性和气候影响的理解。Aerosol radiative forcing(ARF)is the main parameter describing the radiative balance of atmospheric aerosol on the earth-atmosphere radiation balance.This paper validates the accuracy of different aerosol optical depth(AOD)datasets of the Advanced Himawari Imager(AHI)and Moderate Resolution Imaging Spectroradiometer(MODIS)in Xianghe for 2019-2023 combined with ground-based data.The AOD with the highest accuracy of AHI and MODIS are selected to simulate the ARF and analyze the effect of clouds on the ARF in combination with cloud parameters.The results show that AHI and MODIS data are reliable for radiative forcing calculations,and each of them has their own advantages.The ARF performs differently under the conditions of different cloud types.Among them,the ARF is the largest at low cloud with(-111.00±54.03)W/m^(2) at the bottom of the atmosphere,(-33.60±16.69)W/m^(2) at the top of the atmosphere,and(77.40±38.27)W/m^(2) in the atmosphere.Middle cloud is the second largest,and the minimum is exhibited at high cloud,which is about 76%of the value at low cloud.Among the cloud parameters,the cloud optical thickness has the highest correlation with AOD and ARF.This paper helps to reveal the complex interactions between aerosols and clouds and deepen the understanding of atmospheric optical properties and climate impacts.

关 键 词：气溶胶 辐射强迫 高级向日葵成像仪 中分辨率成像光谱仪 

分 类 号：X16[环境科学与工程—环境科学]