Abstract

The concentration of black carbon (BC), measured in near-surface air on the territory of the Pechora-Ilych State Natural Biosphere Reserve (PISNBR) on the western side of the Northern Ural Mountains, far from sources, is presented for two years (December 2017–November 2019). The temporal variations in BC concentration throughout a year and the location of its main sources are analyzed. The average values for two cold and two warm half-years were 128 and 62 ng/m³, respectively. The BC concentration in near-surface atmosphere was compared with MERRA-2 reanalysis data. On a monthly scale, the anomalous increase in BC concentration during short-term smoke aerosol transport across the observation area is more clearly revealed from the reanalysis data, rather than by values measured at a single point. Daily monitoring allows us to detect the specific dates of such situations.

中文翻译：

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Pechora-Ilych自然保护区近地表大气中黑碳的浓度：测量和Merra-2再分析

摘要

距离源不远的北乌拉尔山脉西侧Pechora-Ilych国家自然生物圈保护区（PISNBR）的近地表空气中测得的黑碳（BC）浓度，为期两年（ 2017年12月至2019年11月）。分析了全年中BC浓度的时间变化及其主要来源的位置。两个寒冷和两个温暖半年的平均值分别为128和62 ng / m ³， 分别。将近地表大气中的BC浓度与MERRA-2再分析数据进行了比较。从每月的规模来看，从再分析数据中可以更清楚地发现在整个观测区域内短期烟气气溶胶运输过程中BC浓度的异常增加，而不是通过单点测量得到。每日监控使我们能够检测到此类情况的具体日期。