Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños
This study investigated the effects of El Niño events on tropical cyclone (TC) characteristics over the western North Pacific (WNP) region. First, TC characteristics associated with large-scale atmospheric phenomena (i.e., genesis position, frequency, track, intensity, and duration) were investigate...
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| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/1/59 |
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| author | Yuhang Liu Sun-Kwon Yoon Jong-Suk Kim Lihua Xiong Joo-Heon Lee |
| author_facet | Yuhang Liu Sun-Kwon Yoon Jong-Suk Kim Lihua Xiong Joo-Heon Lee |
| author_sort | Yuhang Liu |
| collection | DOAJ |
| description | This study investigated the effects of El Niño events on tropical cyclone (TC) characteristics over the western North Pacific (WNP) region. First, TC characteristics associated with large-scale atmospheric phenomena (i.e., genesis position, frequency, track, intensity, and duration) were investigated in the WNP in relation to various types of El Niño events—moderate central Pacific (MCP), moderate eastern Pacific (MEP), and strong basin-wide (SBW). Subsequently, the seasonal and regional variability of TC-induced rainfall across China was analyzed to compare precipitation patterns under the three El Niño types. When extreme El Niño events of varying degrees occurred, the local rainfall varied during the developmental and decaying years. The development of MEP and SBW was associated with a distinct change in TC-induced rainfall. During MEP development, TC-induced rainfall occurred in eastern and northeastern China, whereas in SBW, TC-induced heavy rainfall occurred in southwest China. During SBW development, the southwestern region was affected by TCs over a long period, with the eastern and northeastern regions being affected significantly fewer days. During El Niño decay, coastal areas were relatively more affected by TCs during MCP events, and the Pearl River basin was more affected during SBW events. This study’s results could help mitigate TC-related disasters and improve water-supply management. |
| first_indexed | 2024-03-10T13:35:10Z |
| format | Article |
| id | doaj.art-bea65f8c692a4bb5a40992348be8fbf3 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T13:35:10Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-bea65f8c692a4bb5a40992348be8fbf32023-11-21T07:35:47ZengMDPI AGAtmosphere2073-44332020-12-011215910.3390/atmos12010059Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El NiñosYuhang Liu0Sun-Kwon Yoon1Jong-Suk Kim2Lihua Xiong3Joo-Heon Lee4State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaDepartment of Safety and Disaster Prevention Research, Seoul Institute of Technology, Seoul 03909, KoreaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaDepartment of Civil Engineering, Joongbu University, Goyang-si, Gyeunggi-do 10279, KoreaThis study investigated the effects of El Niño events on tropical cyclone (TC) characteristics over the western North Pacific (WNP) region. First, TC characteristics associated with large-scale atmospheric phenomena (i.e., genesis position, frequency, track, intensity, and duration) were investigated in the WNP in relation to various types of El Niño events—moderate central Pacific (MCP), moderate eastern Pacific (MEP), and strong basin-wide (SBW). Subsequently, the seasonal and regional variability of TC-induced rainfall across China was analyzed to compare precipitation patterns under the three El Niño types. When extreme El Niño events of varying degrees occurred, the local rainfall varied during the developmental and decaying years. The development of MEP and SBW was associated with a distinct change in TC-induced rainfall. During MEP development, TC-induced rainfall occurred in eastern and northeastern China, whereas in SBW, TC-induced heavy rainfall occurred in southwest China. During SBW development, the southwestern region was affected by TCs over a long period, with the eastern and northeastern regions being affected significantly fewer days. During El Niño decay, coastal areas were relatively more affected by TCs during MCP events, and the Pearl River basin was more affected during SBW events. This study’s results could help mitigate TC-related disasters and improve water-supply management.https://www.mdpi.com/2073-4433/12/1/59extreme El Niño eventtropical cyclonetropical cyclone-induced precipitationChina |
| spellingShingle | Yuhang Liu Sun-Kwon Yoon Jong-Suk Kim Lihua Xiong Joo-Heon Lee Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños Atmosphere extreme El Niño event tropical cyclone tropical cyclone-induced precipitation China |
| title | Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños |
| title_full | Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños |
| title_fullStr | Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños |
| title_full_unstemmed | Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños |
| title_short | Changes in Intensity and Variability of Tropical Cyclones over the Western North Pacific and Their Local Impacts under Different Types of El Niños |
| title_sort | changes in intensity and variability of tropical cyclones over the western north pacific and their local impacts under different types of el ninos |
| topic | extreme El Niño event tropical cyclone tropical cyclone-induced precipitation China |
| url | https://www.mdpi.com/2073-4433/12/1/59 |
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