Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD028110 |
Toward Synchronous Evaluation of Source Apportionments for Atmospheric Concentration and Deposition of Sulfate Aerosol Over East Asia | |
Itahashi, S.1,2 | |
2018-03-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:5页码:2927-2953 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA |
英文摘要 | Source apportionments for atmospheric concentration, dry deposition, and wet deposition of sulfate aerosol (SO42-) were synchronously evaluated over East Asia, a main source of anthropogenic sulfur dioxide (SO2) emissions. Estimating dry deposition was difficult owing to the difficulty of measuring deposition velocity directly; therefore, sensitivity simulations using two dry deposition schemes were conducted. Moreover, sensitivity simulations for different emission inventories, the largest uncertainty source in the air quality model, were also conducted. In total, four experimental settings were used. Model performance was verified for atmospheric concentration and wet deposition using a ground-based observation network in China, Korea, and Japan, and all four model settings captured the observations. The underestimation of wet deposition over China was improved by an adjusted approach that linearly scaled the modeled precipitation values to observations. The synchronous evaluation of source apportionments for atmospheric concentration and dry and wet deposition showed the dominant contribution of anthropogenic emissions from China to the atmospheric concentration and deposition in Japan. The contributions of emissions from volcanoes were more important for wet deposition than for atmospheric concentration. Differences in the dry deposition scheme and emission inventory did not substantially influence the relative ratio of source apportionments over Japan. Because the dry deposition was more attributed to local factors, the differences in dry deposition may be an important determinant of the source contributions from China to Japan. Verification of these findings, including the dry deposition velocity, is necessary for better understanding of the behavior of sulfur compound in East Asia. |
英文关键词 | chemical transport model tagged tracer method source apportionments deposition |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428437100032 |
WOS关键词 | LONG-RANGE TRANSPORT ; SULFUR-DIOXIDE EMISSIONS ; FINE PARTICULATE MATTER ; GASEOUS DRY DEPOSITION ; NON-SEASALT SULFATE ; AIR-QUALITY ; ACIDIFYING SUBSTANCES ; MICS-ASIA ; WET DEPOSITION ; OPTICAL DEPTH |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32172 |
专题 | 气候变化 |
作者单位 | 1.Cent Res Inst Elect Power Ind, Environm Sci Res Lab, Abiko, Chiba, Japan; 2.North Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA |
推荐引用方式 GB/T 7714 | Itahashi, S.. Toward Synchronous Evaluation of Source Apportionments for Atmospheric Concentration and Deposition of Sulfate Aerosol Over East Asia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(5):2927-2953. |
APA | Itahashi, S..(2018).Toward Synchronous Evaluation of Source Apportionments for Atmospheric Concentration and Deposition of Sulfate Aerosol Over East Asia.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(5),2927-2953. |
MLA | Itahashi, S.."Toward Synchronous Evaluation of Source Apportionments for Atmospheric Concentration and Deposition of Sulfate Aerosol Over East Asia".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.5(2018):2927-2953. |
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