Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season
A regional climate model (RegCM4.1) is used to conduct two sets of sensitivity experiments. There are 20-year runs in each set of experiments. The experiments in each set include the variation of anthropogenic SO _2 emissions during 1989–2008 but exclude natural variations of the atmosphere and sea...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2013-01-01
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| Series: | Environmental Research Letters |
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| Online Access: | https://doi.org/10.1088/1748-9326/8/4/044024 |
| _version_ | 1797748040311767040 |
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| author | Yang Zhou Jing Jiang Anning Huang Mengke La Yong Zhao Lujun Zhang |
| author_facet | Yang Zhou Jing Jiang Anning Huang Mengke La Yong Zhao Lujun Zhang |
| author_sort | Yang Zhou |
| collection | DOAJ |
| description | A regional climate model (RegCM4.1) is used to conduct two sets of sensitivity experiments. There are 20-year runs in each set of experiments. The experiments in each set include the variation of anthropogenic SO _2 emissions during 1989–2008 but exclude natural variations of the atmosphere and sea surface temperature. The model results suggest that the high-speed emission of SO _2 and its uneven distribution over eastern China can contribute to the change in May–August rainfall over eastern China between the two decades of 1999–2008 and 1989–1998, especially to the decrease (increase) of rainfall in the Yangtze River valley (Huang-Huai River region). Furthermore, the areas of decreasing (increasing) rainfall correspond to the downward (upward) currents of the anomalous atmospheric circulation, which is caused by the two humps of the difference in sulfate concentration between the two decades. |
| first_indexed | 2024-03-12T15:59:16Z |
| format | Article |
| id | doaj.art-125285c6f0134228994cf55eb51110aa |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:59:16Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-125285c6f0134228994cf55eb51110aa2023-08-09T14:41:36ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018404402410.1088/1748-9326/8/4/044024Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon seasonYang Zhou0Jing Jiang1Anning Huang2Mengke La3Yong Zhao4Lujun Zhang5School of Atmospheric Sciences, Nanjing University , Nanjing, 210093, People’s Republic of ChinaSchool of Atmospheric Sciences, Nanjing University , Nanjing, 210093, People’s Republic of ChinaSchool of Atmospheric Sciences, Nanjing University , Nanjing, 210093, People’s Republic of ChinaInstitute of Environmental Planning and Design, Co., Ltd, Nanjing University , Nanjing, 210093, People’s Republic of ChinaInstitute of Desert Meteorology, China Meteorology Administration , Urumqi, 830002, People’s Republic of ChinaSchool of Atmospheric Sciences, Nanjing University , Nanjing, 210093, People’s Republic of ChinaA regional climate model (RegCM4.1) is used to conduct two sets of sensitivity experiments. There are 20-year runs in each set of experiments. The experiments in each set include the variation of anthropogenic SO _2 emissions during 1989–2008 but exclude natural variations of the atmosphere and sea surface temperature. The model results suggest that the high-speed emission of SO _2 and its uneven distribution over eastern China can contribute to the change in May–August rainfall over eastern China between the two decades of 1999–2008 and 1989–1998, especially to the decrease (increase) of rainfall in the Yangtze River valley (Huang-Huai River region). Furthermore, the areas of decreasing (increasing) rainfall correspond to the downward (upward) currents of the anomalous atmospheric circulation, which is caused by the two humps of the difference in sulfate concentration between the two decades.https://doi.org/10.1088/1748-9326/8/4/044024climateregionalchange92.70.Kbregional climate modelsulfate |
| spellingShingle | Yang Zhou Jing Jiang Anning Huang Mengke La Yong Zhao Lujun Zhang Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season Environmental Research Letters climate regional change 92.70.Kb regional climate model sulfate |
| title | Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season |
| title_full | Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season |
| title_fullStr | Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season |
| title_full_unstemmed | Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season |
| title_short | Possible contribution of heavy pollution to the decadal change of rainfall over eastern China during the summer monsoon season |
| title_sort | possible contribution of heavy pollution to the decadal change of rainfall over eastern china during the summer monsoon season |
| topic | climate regional change 92.70.Kb regional climate model sulfate |
| url | https://doi.org/10.1088/1748-9326/8/4/044024 |
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