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Open AccessArticle

Contribution of Tropical Cyclones to Precipitation around Reclaimed Islands in the South China Sea

by 1,2, 1,2,*, 1,2,* and 1
1
Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2
Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
*
Authors to whom correspondence should be addressed.
Water 2020, 12(11), 3108; https://doi.org/10.3390/w12113108
Received: 15 September 2020 / Revised: 28 October 2020 / Accepted: 2 November 2020 / Published: 5 November 2020
(This article belongs to the Section Hydrology and Hydrogeology)
Tropical cyclones (TCs) play an important role in the precipitation of tropical oceans and islands. The temporal and spatial characteristics of precipitation have become more complex in recent years with climate change. Global warming tips the original water and energy balance in oceans and atmosphere, giving rise to extreme precipitation events. In this study, the monthly precipitation ratio method, spatial analysis, and correlation analysis were employed to detect variations in precipitation in the South China Sea (SCS). The results showed that the contribution of TCs was 5.9% to 10.1% in the rainy season and 7.9% to 16.8% in the dry season. The seven islands have the same annual variations in the precipitation contributed by TCs. An 800 km radius of interest was better for representing the contribution of TC-derived precipitation than a 500 km conventional radius around reclaimed islands in the SCS. Four track patterns of TCs were defined. The order according to the primary pattern of contribution was I (26–85.3%) > IV (12.8–29.8%) > III (4.3–29%) > II (11.5–24%). The average distance between islands and TCs was 1163 and 712 km in the rainy and dry seasons, respectively. The average contribution was larger in La Niña than in El Niño periods. These results could be beneficial for managing rainwater resources, especially the TC-induced precipitation in the reclaimed islands. View Full-Text
Keywords: tropical cyclones; precipitation; reclaimed islands; ENSO; South China Sea tropical cyclones; precipitation; reclaimed islands; ENSO; South China Sea
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MDPI and ACS Style

Yao, D.; Song, X.; Yang, L.; Ma, Y. Contribution of Tropical Cyclones to Precipitation around Reclaimed Islands in the South China Sea. Water 2020, 12, 3108. https://doi.org/10.3390/w12113108

AMA Style

Yao D, Song X, Yang L, Ma Y. Contribution of Tropical Cyclones to Precipitation around Reclaimed Islands in the South China Sea. Water. 2020; 12(11):3108. https://doi.org/10.3390/w12113108

Chicago/Turabian Style

Yao, Dongxu; Song, Xianfang; Yang, Lihu; Ma, Ying. 2020. "Contribution of Tropical Cyclones to Precipitation around Reclaimed Islands in the South China Sea" Water 12, no. 11: 3108. https://doi.org/10.3390/w12113108

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