Temporal and Spatial Distribution and Anomalous Circulation Characteristics of Winter Rainstorms in Hainan Province
YANG Wei1,2(),FENG Wen1,2,ZENG Li3,CHEN Youlong1,2()
1. Hainan Provincial Meteorological Observatory, Haikou 570203, China 2. Key Laboratory of South China Sea Meteorological Disaster Prevention and Mitigation of Hainan Province, Haikou 570203, China 3. China Jiuquan Satellite Launch Center, Jiuquan 732750, Gansu, China
YANG Wei,FENG Wen,ZENG Li,CHEN Youlong. Temporal and Spatial Distribution and Anomalous Circulation Characteristics of Winter Rainstorms in Hainan Province[J]. Journal of Arid Meteorology, 2021, 39(5): 759-765.
Fig.1 The spatial distribution of average rainstorm days (a, Unit: d) and the daily maximum precipitation (b, Unit: mm) in winter from 1951 to 2016 in Hainan Island (The number at each station represents the maximum rainstorm days and the daily maximum precipitation in winter, respectively)
Fig.1 The spatial distribution of average rainstorm days (a, Unit: d) and the daily maximum precipitation (b, Unit: mm) in winter from 1951 to 2016 in Hainan Island (The number at each station represents the maximum rainstorm days and the daily maximum precipitation in winter, respectively)
Fig.2 The inter-annual variation of rainstorm days in winter from 1951 to 2016 in Hainan Island
Fig.2 The inter-annual variation of rainstorm days in winter from 1951 to 2016 in Hainan Island
Fig.3 The spatial distribution of precipitation during the rainstorm processes from 27 to 28 December 2008 (a) and 14 to 15 December 2013 (b) in Hainan Island (Unit: mm)
Fig.3 The spatial distribution of precipitation during the rainstorm processes from 27 to 28 December 2008 (a) and 14 to 15 December 2013 (b) in Hainan Island (Unit: mm)
Fig.4 The average geopotential height (contours, Unit: dagpm) and wind field (vectors, Unit: m·s-1) on 500 hPa from 08:00 BST 27 to 08:00 BST 28 December 2008 (a) and 08:00 BST 14 to 08:00 BST 15 December 2013 (b), and the climatic mean state in the 5th (c) and the 3rd (d) pentads of December from 1951 to 2016 (the thick line for the southern branch trough)
Fig.4 The average geopotential height (contours, Unit: dagpm) and wind field (vectors, Unit: m·s-1) on 500 hPa from 08:00 BST 27 to 08:00 BST 28 December 2008 (a) and 08:00 BST 14 to 08:00 BST 15 December 2013 (b), and the climatic mean state in the 5th (c) and the 3rd (d) pentads of December from 1951 to 2016 (the thick line for the southern branch trough)
Fig.5 The 925 hPa wind field (vectors, Unit: m·s-1) at 08:00 BST 27 December 2008 (a) and 20:00 BST 14 December 2013 (b) and the climatic mean state in the 5th (c) and the 3rd (d) pentads of December from 1951 to 2016 (the color shadow areas for jet streams with wind speed more than 12 m·s-1)
Fig.5 The 925 hPa wind field (vectors, Unit: m·s-1) at 08:00 BST 27 December 2008 (a) and 20:00 BST 14 December 2013 (b) and the climatic mean state in the 5th (c) and the 3rd (d) pentads of December from 1951 to 2016 (the color shadow areas for jet streams with wind speed more than 12 m·s-1)
Fig.6 Sea level pressure (Unit: hPa) at 08:00 BST 27 December 2008 (a) and 20:00 BST 14 December 2013 (b) and the climatic mean state in the 5th (c) and the 3rd (d) pentads of December from 1951 to 2016
Fig.6 Sea level pressure (Unit: hPa) at 08:00 BST 27 December 2008 (a) and 20:00 BST 14 December 2013 (b) and the climatic mean state in the 5th (c) and the 3rd (d) pentads of December from 1951 to 2016
Fig.7 Anomalies of average geopotential height (contours, Unit: dagpm) and wind field (vectors, Unit: m·s-1) on 500 hPa in the 5th pentad of December 2008 (a) and the 3rd pentad of December 2013 (b)
Fig.7 Anomalies of average geopotential height (contours, Unit: dagpm) and wind field (vectors, Unit: m·s-1) on 500 hPa in the 5th pentad of December 2008 (a) and the 3rd pentad of December 2013 (b)
Fig.8 Anomalies of average wind field (a, b, Unit: m·s-1) and moisture flux divergence (c, d, Unit: 10-7 g·hPa-1·cm-2·s-1) on 850 hPa in the 5th pentad of December 2008 (a, c) and the 3rd pentad of December 2013 (b, d)
Fig.8 Anomalies of average wind field (a, b, Unit: m·s-1) and moisture flux divergence (c, d, Unit: 10-7 g·hPa-1·cm-2·s-1) on 850 hPa in the 5th pentad of December 2008 (a, c) and the 3rd pentad of December 2013 (b, d)