The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season
The study explores the characteristics of morning extreme precipitation (MEP) during the pre-summer in inland Guangdong. Based on the principal modes, MEP events can be classified into four groups. The first group of MEP (G1) is a typical southeastward-propagating rainfall system originating from th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/15/1/23 |
| _version_ | 1797344720226091008 |
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| author | Xiaoshuang Wang Xi Lu Yuping Li Kunlun Xiang Juanhuai Wang |
| author_facet | Xiaoshuang Wang Xi Lu Yuping Li Kunlun Xiang Juanhuai Wang |
| author_sort | Xiaoshuang Wang |
| collection | DOAJ |
| description | The study explores the characteristics of morning extreme precipitation (MEP) during the pre-summer in inland Guangdong. Based on the principal modes, MEP events can be classified into four groups. The first group of MEP (G1) is a typical southeastward-propagating rainfall system originating from the northwestern mountains. This is caused by the strongest accelerated southwesterly winds at night, which bring abundant moist and warm air from the South China Sea (SCS) along with the shear line and the highest convective available potential energy (CAPE). The second group of MEP (G2) is warm-sector heavy rainfall with large-scale warming and higher CAPE. This local rainfall system originates in the south of Nanling mountains at night and reaches its mature stage in the morning. The rainfall system of the third group (G3) originates in central Guangxi and propagates to the southern inland region. The southeasterly winds in Guangxi intensify at night due to the anomalous cyclonic circulation. However, in the morning, the easterly winds shift to the westerlies, favoring eastward propagation. After SCS monsoon onset, cold air intrudes southward, colliding with moist warm air from the SCS, leading to heavy frontal precipitation in the inland region, classified as the fourth group MEP (G4). |
| first_indexed | 2024-03-08T11:06:49Z |
| format | Article |
| id | doaj.art-f28ebe0b27ff4488aab9fc6413f80877 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-08T11:06:49Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-f28ebe0b27ff4488aab9fc6413f808772024-01-26T15:01:26ZengMDPI AGAtmosphere2073-44332023-12-011512310.3390/atmos15010023The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy SeasonXiaoshuang Wang0Xi Lu1Yuping Li2Kunlun Xiang3Juanhuai Wang4School of Atmospheric Sciences, Sun Yat-sen University, and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, ChinaSchool of Atmospheric Sciences, Sun Yat-sen University, and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, ChinaNanning Meteorological Service, Nanning 530000, ChinaGuangdong Ecological Meteorology Center, Guangzhou 510000, ChinaGuangdong Climate Center, Guangzhou 510000, ChinaThe study explores the characteristics of morning extreme precipitation (MEP) during the pre-summer in inland Guangdong. Based on the principal modes, MEP events can be classified into four groups. The first group of MEP (G1) is a typical southeastward-propagating rainfall system originating from the northwestern mountains. This is caused by the strongest accelerated southwesterly winds at night, which bring abundant moist and warm air from the South China Sea (SCS) along with the shear line and the highest convective available potential energy (CAPE). The second group of MEP (G2) is warm-sector heavy rainfall with large-scale warming and higher CAPE. This local rainfall system originates in the south of Nanling mountains at night and reaches its mature stage in the morning. The rainfall system of the third group (G3) originates in central Guangxi and propagates to the southern inland region. The southeasterly winds in Guangxi intensify at night due to the anomalous cyclonic circulation. However, in the morning, the easterly winds shift to the westerlies, favoring eastward propagation. After SCS monsoon onset, cold air intrudes southward, colliding with moist warm air from the SCS, leading to heavy frontal precipitation in the inland region, classified as the fourth group MEP (G4).https://www.mdpi.com/2073-4433/15/1/23morning extreme precipitationprincipal modeinland region of Guangdongpre-summer rainy season |
| spellingShingle | Xiaoshuang Wang Xi Lu Yuping Li Kunlun Xiang Juanhuai Wang The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season Atmosphere morning extreme precipitation principal mode inland region of Guangdong pre-summer rainy season |
| title | The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season |
| title_full | The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season |
| title_fullStr | The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season |
| title_full_unstemmed | The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season |
| title_short | The Principal Modes of Morning Extreme Precipitation over Inland Guangdong, China during Pre-Summer Rainy Season |
| title_sort | principal modes of morning extreme precipitation over inland guangdong china during pre summer rainy season |
| topic | morning extreme precipitation principal mode inland region of Guangdong pre-summer rainy season |
| url | https://www.mdpi.com/2073-4433/15/1/23 |
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