LIN Zequn,WU Haiou,YANG Zhenhua,et al.The spatio-temporal characteristics of tropical cyclone precipitation based on high-resolution data[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(05):157-170.
LIN Zequn,WU Haiou,YANG Zhenhua,et al.The spatio-temporal characteristics of tropical cyclone precipitation based on high-resolution data[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(05):157-170. DOI: 10.13471/j.cnki.acta.snus.2023D002.
The spatio-temporal characteristics of tropical cyclone precipitation based on high-resolution data
The spatiotemporal distribution and variation of tropical cyclone precipitation have significant impacts on disaster-affected areas. However, studies on short duration tropical cyclone precipitation and its spatiotemporal distribution characteristics are lacking. Therefore, this study uses a precipitation product data with high spatial and temporal resolution, based on Gini index, Space Gini index and linear regression method, to study the spatial and temporal distribution characteristics and trends of tropical cyclone precipitation. The results show that: 1) the average annual impact frequency and annual precipitation of tropical cyclones decrease from southeast to northwest. The trend of influence frequency decreases significantly in most southeast regions of China, and the trend of annual precipitation shows obvious spatial differences. 2) Precipitation duration of tropical cyclones shows a decreasing trend, resulting in an increase in precipitation intensity and concentration, which indicates that tropical cyclone precipitation was more concentrated in time while its intensity is enhanced. 3) The analysis results of four tropical cyclones show that, within 200 km of the central path is the main precipitation area, which is uniform in temporal distribution. In the range of 800 km, precipitation is more concentrated in time with the increasing distance.
HE J, YANG K, TANG W J, et al, 2020. The first high-resolution meteorological forcing dataset for land process studies over China[J]. Scientific Data, 7(1):25.
LONG K H, WANG D G, WANG G L, et al, 2021. Higher temperature enhances spatiotemporal concentration of rainfall[J].Journal of Hydrometeorology,22(12):3159-3169.
LU X Q, YU H, YING M, et al, 2021. Western North Pacific tropical cyclone database created by the China Meteorological Administration[J]. Advances in Atmospheric Sciences, 38(4):690-699.
MONJO R, MARTIN-VIDE J, 2016. Daily precipitation concentration around the world according to several indices[J]. International Journal of Climatology, 36(11):3828-3838.
RAJAH K, O'LEARY T, TURNER A, et al, 2014. Changes to the temporal distribution of daily precipitation[J]. Geophysical Research Letters, 41(24):8887-8894.
REN F M, GLEASON B, EASTERLING D, 2002. Typhoon impacts on China's precipitation during 1957-1996[J]. Advances in Atmospheric Sciences, 19(5):943-952.
REN F M, WU G X, DONG W J, et al, 2006. Changes in tropical cyclone precipitation over China[J]. Geophysical Research Letters, 33(20):L20702.
TOUMA D, STEVENSON S, CAMARGO S J, et al, 2019. Variations in the intensity and spatial extent of tropical cyclone precipitation[J]. Geophysical Research Letters, 46(23):13992-14002.
YING M, CHEN B D, WU G X, 2011. Climate trends in tropical cyclone-induced wind and precipitation over China's mainland[J]. Geophysical Research Letters,38(1):L01702.
YING M, ZHANG W, YU H, et al, 2014. An overview of the China Meteorological Administration tropical cyclone database[J]. Journal of Atmospheric and Oceanic Technology, 31(2):287-301.
ZHANG J Y, WU L G, REN F M, et al, 2013. Changes in tropical cyclone rainfall in China[J]. Journal of the Meteorological Society of Japan, 91(5):585-595.
Spatiotemporal Variations of Extreme Temperature Events over Xinjiang during 1961-2010
Related Author
CI Hui
ZHANG Qiang
ZHANG Jianghui
BAI Yungang
Related Institution
School of Geography and Planning ∥Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute, Sun Yat-sen University
School of Earth Sciences and Engineering, Suzhou University