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Impact of the smoke aerosol from Russian forest fires on the atmospheric environment over Korea during May 2003

机译：2003年5月俄罗斯森林大火产生的烟雾气溶胶对韩国大气环境的影响

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摘要

Extensive forest fire activities occurred in May 2003 across Siberia, Russia, particularly in the area between the Amur and Lena rivers east of Lake Baikal. These forest fires released large amounts of particulates and gases into the atmosphere, resulting in adverse effects on regional air quality and radiation budget. On certain occasions, a smoke pollution plume from these forest fires was transported through Mongolia and eastern China, down to the Korean peninsula. In this study, satellite data and ground-based radiation measurement data were analyzed to estimate the smoke aerosol's impact on the local atmospheric environment over Korea. Aerosol optical depth (AOD) values retrieved using the Bremen Aerosol Retrieval method from Moderate Resolution Imaging Spectroradiometer data were compared with those derived from ground-based radiation measurements. Large AOD values in the range 2.0-4.0 were observed on 20 May 2003 over Korea due to the influence of the long-range transported smoke aerosol plume from the Russian fires, resulting in a surface-observed short-wavelength direct aerosol radiative forcing efficiency of —90 to -200 Wm~(-2). This smoke aerosol plume also resulted in a decrease in the solar visible irradiance of up to 57%, and increased the surface PM10 concentration by up to 258 μgm~(-3).
机译：2003年5月，俄罗斯西伯利亚各地发生了广泛的森林火灾，特别是在贝加尔湖以东的阿穆尔河和莉娜河之间的地区。这些森林大火将大量颗粒物和气体释放到大气中，从而对区域空气质量和辐射预算造成不利影响。在某些情况下，这些森林大火产生的烟雾污染烟气通过蒙古和中国东部运输到朝鲜半岛。在这项研究中，对卫星数据和地面辐射测量数据进行了分析，以估算烟雾对韩国当地大气环境的影响。将使用不来梅气溶胶提取方法从中分辨率成像光谱辐射仪数据中检索到的气溶胶光学深度（AOD）值与从地面辐射测量得出的值进行了比较。由于来自俄罗斯大火的远距离传输烟雾气溶胶羽流的影响，2003年5月20日在韩国观测到较大的AOD值在2.0-4.0范围内，导致在表面观察到的短波直接气溶胶辐射强迫效率为200-4.0。 -90至-200 Wm〜（-2）。这种烟雾气雾还导致太阳可见光辐射降低多达57％，并使表面PM10浓度增加多达258μgm〜（-3）。

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