Evaluation of anthropogenic emissions of black carbon from East Asia in six inventories: constraints from model simulations and surface observations on Fukue Island, Japan
Evaluation of anthropogenic emissions of black carbon from East Asia in six inventories: constraints from model simulations and surface observations on Fukue Island, Japan
复制标题
六个清单中东亚黑碳人为排放的评估：模型模拟和日本福江岛表面观测的约束
DOI：
10.1039/d1ea00051a
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Taketani Fumikazu
中科院分区：
文献类型：
--
作者：
Ikeda Kohei;Tanimoto Hiroshi;Kanaya Yugo;Taketani Fumikazu
自下而上的黑碳（BC）排放清单被用来评估其对气候和空气质量的影响，使用气候模式和化学传输模式。然而，对东亚这一人类活动排放量最大的区域的BC排放量的估计仍不确定。我们评估了来自东亚的人为BC排放量的五个全球清单和一个区域清单使用化学传输模型，GEOS-Chem，和观测在日本西部的江岛。本研究中检查的库存包括REASv2.1，HTAPv 2，MACCity，ECLIPSEv 5a，CEDS和EDGARv4.3.2。我们首先按来源区域和部门比较了东亚六份清单的BC排放量。2010年，中国的BC排放量估计为每年1.32-2.44 Tg，最大值（CEDS）和最小值（EDGARv4.3.2）之间相差85%。然后，我们使用GEOS-Chem对六个清单进行了模型模拟，并将其与在埃克塞特岛的观测结果进行了比较。为了评估中国的BC排放量，我们使用了一种标记的方法来选择BC的数据强烈影响从中国运输和排除数据的影响，在运输过程中的湿清除。数据选择后的比较表明，模拟中的平均BC浓度比观测值大25-116%。我们使用模拟浓度与观测浓度的比值估算了2009-2011年中国的BC排放量平均为1.14 Tg/年，这表明CMIP 6和ECLIPSEv 5a中使用的CEDS高估了中国的BC排放量。季节性分析表明，冬季的国内部门导致这些库存的高估。
Bottom-up emission inventories of black carbon (BC) are used to assess its impact on the climate and air quality using climate models and chemical transport models. However, the estimates of BC emissions from East Asia, the region with the largest anthropogenic emissions, are still uncertain. We evaluated anthropogenic BC emissions from East Asia for five global inventories and one regional inventory using a chemical transport model, GEOS-Chem, and observations at Fukue Island in western Japan. The inventories examined in this study include REASv2.1, HTAPv2, MACCity, ECLIPSEv5a, CEDS, and EDGARv4.3.2. We first compared BC emissions in East Asia for the six inventories by source region and sector. BC emissions from China were estimated to be 1.32–2.44 Tg per year for 2010 with a large difference of 85% between the maximum (CEDS) and minimum (EDGARv4.3.2). We then conducted model simulations for the six inventories using GEOS-Chem and compared them with the observations at Fukue Island. To evaluate Chinese BC emissions, we used a tagged method to select BC data strongly affected by BC transported from China and excluded data influenced by wet scavenging during transport. The comparisons after the data selection showed that the average BC concentrations in the simulations were 25–116% larger than the observed values. We estimated BC emissions from China to be 1.14 Tg per year averaged for 2009–2011 using the ratios of simulated to observed concentrations, suggesting that CEDS used in CMIP6 and ECLIPSEv5a overestimates Chinese BC emissions. Seasonal analysis suggests that the domestic sector in winter leads to the overestimation of these inventories.