Journal of Arid Meteorology ›› 2022, Vol. 40 ›› Issue (1): 73-83.DOI: 10.11755/j.issn.1006-7639(2022)-01-0073
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HU Zhenju1,2(), LI Lu2, HUANG Xiaoyu3, HE Binwen2, YE Rixin2
Received:
2020-12-22
Revised:
2021-04-28
Online:
2022-02-28
Published:
2022-02-28
胡振菊1,2(), 黎璐2, 黄小玉3, 何炳文2, 叶日新2
作者简介:
胡振菊(1971— ),女,硕士,高级工程师,主要从事天气分析及数值模式检验研究. E-mail: zhj_zhs@163.com。
基金资助:
CLC Number:
HU Zhenju, LI Lu, HUANG Xiaoyu, HE Binwen, YE Rixin. Analysis of mechanism of topographic influence and meso-scale convective characteristics of an extremely severe rainfall affected by typical easterly wave[J]. Journal of Arid Meteorology, 2022, 40(1): 73-83.
胡振菊, 黎璐, 黄小玉, 何炳文, 叶日新. 一次典型东风波极端暴雨的中尺度特征及地形影响分析[J]. 干旱气象, 2022, 40(1): 73-83.
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URL: http://www.ghqx.org.cn/EN/10.11755/j.issn.1006-7639(2022)-01-0073
Fig.2 The tracks of the typhon 1604 and 1605 from 29 July to 9 August 2016 (a), the geopotential height field (the isolines, Unit: dagpm) on 500 hPa, vorticity field (the shaded, Unit: 10-5 s-1) and wind field (the vectors, Unit: m·s-1) on 850 hPa at 08:00 BST 10 (b), 14:00 BST 10 (c) and 02:00 BST 11 (d) August 2016 (the area in the red border for Hunan Province, the same as below)
Fig.3 The height-time sections of wind field (the vectors, Unit: m·s-1) and vertical velocity (the shaded, Unit: Pa·s-1) at Changde station from 7 to 15 August 2016
Fig.4 The distribution of accumulative precipitation (Unit: mm) from 20:00 BST 8 to 08:00 BST 9 (a), 20:00 BST 9 to 08:00 BST 10 (b) and 20:00 BST 10 to 08:00 BST 11 (c) in Hunan Province, hourly precipitation of Yangban township station from 01:00 BST to 07:00 BST 11 August 2016
Fig.5 The combined reflectivity factor of Changde Doppler radar at 22:35 BST 10 (a) and 02:19 BST 11 (b) (Unit: dBZ) August, the vertical section of base reflectivity factor along the blue solid line in Fig.5b (c, Unit: dBZ) and the radar storm properties (d)
Fig.6 The radial velocity on 0.5° (a) and 1.5° (b) elevation of Changde Doppler radar at 02:25 BST 11 August (Unit: m·s-1), the minutely precipitation at the Yangban township station from 02:00 BST to 04:00 BST 11 (c) August 2016
Fig.7 The wind field (the vectors, Unit: m·s-1) and past 6 hours precipitation (the shaded, Unit: mm) of regional stations in Hunan Province at 23:00 BST 10 (a) and 02:00 BST 11 (b) August 2016
Fig.8 The wind field (the vectors, Unit: m·s-1) and water vapor flux divergence (the shaded, Unit: 10-5 g·hPa-1·cm-2·s-1) on 850 hPa (a, b), the wind field (the vectors, Unit: m·s-1) and θse (the shaded, Unit: K) on 850 hPa (c), the wind field (the vectors, Unit: m·s-1) on 500 hPa and Δθse850-500 (the shaded, Unit: K) (d) at 20:00 BST 10 (a, c, d) and 02:00 BST 11 (b) August 2016
时段 | 雨强大于20 mm·h-1的站数 | 最大雨强/(mm·h-1) | 所属县 |
---|---|---|---|
10日22:00—23:00 | 1 | 20.7 | 汉寿 |
10日23:00—00:00 | 10 | 34.9 | 安乡 |
11日00:00—01:00 | 34 | 83.3 | 安乡 |
11日01:00—02:00 | 35 | 52.0 | 临澧 |
11日02:00—03:00 | 41 | 93.8 | 临澧 |
11日03:00—04:00 | 46 | 93.3 | 石门 |
11日04:00—05:00 | 34 | 58.8 | 澧县 |
Tab.1 The development of mesoscale rain cluster with rainfall intensity more than 20 mm·h-1 from 22:00 BST 10 to 05:00 BST 11 August 2016
时段 | 雨强大于20 mm·h-1的站数 | 最大雨强/(mm·h-1) | 所属县 |
---|---|---|---|
10日22:00—23:00 | 1 | 20.7 | 汉寿 |
10日23:00—00:00 | 10 | 34.9 | 安乡 |
11日00:00—01:00 | 34 | 83.3 | 安乡 |
11日01:00—02:00 | 35 | 52.0 | 临澧 |
11日02:00—03:00 | 41 | 93.8 | 临澧 |
11日03:00—04:00 | 46 | 93.3 | 石门 |
11日04:00—05:00 | 34 | 58.8 | 澧县 |
Fig.9 The distribution of accumulated precipitation simulated by control test (a) and sensitivity test (b) from 20:00 BST 10 to 08:00 BST 11 August 2016 (Unit: mm)
Fig.10 The height-time sections of wind field (the vectors, Unit: m·s-1) and vertical velocity (the shaded, Unit: m·s-1) simulated by control test (a) and sensitivity test (b) at Yangban township station from 20:00 BST 10 to 20:00 BST 11 August 2016
Fig.11 Distribution of the 0.5 km wind field (the vectors, Unit: m·s-1) and radar reflectivity (the shaded, Unit: dBZ) by control test (a) and sensitivity test (b) at 04:00 BST 11 August 2016 in northern Hunan area (+ indicates the location of rainstorm)
Fig.12 The vertical velocity profiles simulated by control test and sensitivity test at Yangban township station from 03:00 BST to 06:00 BST 11 August 2016 (a) 03:00 BST, (b) 04:00 BST, (c) 05:00 BST, (d) 06:00 BST
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