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DOI | 10.1175/JCLI-D-18-0290.1 |
How Northern High-Latitude Volcanic Eruptions in Different Seasons Affect ENSO | |
Sun, Weiyi1,2; Wang, Bin3,4,5; Liu, Jian1,2,6,7; Chen, Deliang8; Gao, Chaochao9; Ning, Liang1,2; Chen, Lin3,4,10 | |
2019-06-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:11页码:3245-3262 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Sweden |
英文摘要 | The impact of northern high-latitude volcanic (NHV) eruptions on El Nino-Southern Oscillation (ENSO) is investigated based on ensemble simulations with the Community Earth System Model. The seasonality of the atmospheric circulation influences the NHV aerosol dispersion, causing stronger (weaker) Northern Hemisphere cooling after the January and April (July and October) eruptions. ENSO's response is found to be more dependent on NHV eruption seasons than that on tropical eruption seasons. The January eruption causes an El Nino in an eruption year [year (0) hereafter] while an El Nino occurs in year (1) after the October eruption. No significant El Nino occurs after the April (July) eruption. A diagnostic analysis reveals that these El Ninos' developments are attributed to the positive zonal, meridional advective, and thermocline feedbacks, triggered by the western Pacific westerly anomalies. The anomalous North Pacific cyclone (NPC) and Asian monsoon are key systems to excite anomalous westerlies, which are caused by the NHV-induced midlatitude cooling and Eurasian continent-North Pacific thermal contrast. After the January eruption, the anomalous NPC develops in early summer and connects with a weakened Asian summer monsoon, which excites anomalous westerlies over the Indo-western Pacific, activating the Bjerknes feedback. For the October eruption, the anomalous NPC and enhanced East Asian winter monsoon bring cold air to the Maritime Continent and warm the subtropical central North Pacific through surface heat flux exchange, exciting the westerly anomalies. These results suggest that the strong dependence on the seasonal timing of NHV should be a critical element of data-model comparisons. |
英文关键词 | Volcanoes El Nino ENSO Paleoclimate Radiative forcing Climate variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467555600001 |
WOS关键词 | EL-NINO ; TROPICAL PACIFIC ; OPTICAL DEPTH ; CLIMATE ; PRECIPITATION ; VARIABILITY ; SIMULATION ; RESPONSES ; MONSOON ; EASTERN |
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/183842 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Normal Univ, Jiangsu Prov State Key Lab Cultivat Base Geog Env, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Key Lab Virtual Geog Environm,Minist Educ, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Normal Univ, Sch Geog Sci, Nanjing, Jiangsu, Peoples R China; 3.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA; 4.Univ Hawaii Manoa, Atmosphere Ocean Res Ctr, Honolulu, HI 96822 USA; 5.Nanjing Univ Informat Sci & Technol, Earth Syst Modeling Ctr, Nanjing, Jiangsu, Peoples R China; 6.Nanjing Normal Univ, Sch Math Sci, Jiangsu Prov Key Lab Numer Simulat Large Scale Co, Nanjing, Jiangsu, Peoples R China; 7.Qingdao Natl Lab Marine Sci & Technol, Open Studio Simulat Ocean Climate Isotope, Qingdao, Shandong, Peoples R China; 8.Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden; 9.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou, Zhejiang, Peoples R China; 10.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change, Key Lab Meteorol Disaster,Minist Educ, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, Weiyi,Wang, Bin,Liu, Jian,et al. How Northern High-Latitude Volcanic Eruptions in Different Seasons Affect ENSO[J]. JOURNAL OF CLIMATE,2019,32(11):3245-3262. |
APA | Sun, Weiyi.,Wang, Bin.,Liu, Jian.,Chen, Deliang.,Gao, Chaochao.,...&Chen, Lin.(2019).How Northern High-Latitude Volcanic Eruptions in Different Seasons Affect ENSO.JOURNAL OF CLIMATE,32(11),3245-3262. |
MLA | Sun, Weiyi,et al."How Northern High-Latitude Volcanic Eruptions in Different Seasons Affect ENSO".JOURNAL OF CLIMATE 32.11(2019):3245-3262. |
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