SEVREE LOCAL STORMS INITIATED BY THE SEA BREEZE FRONT IN THE PEARL RIVER DELTA DURING THE LATE SPRING AND SUMMER

Liu Yunce; Zhuang Xudong; Li Xianzhou

Vol.12, NO.4, 2001

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2001 > 12(4): 433-441

Liu Yunce, Zhuang Xudong, Li Xianzhou. Severe local storms initiated by the sea breeze front in the Pearl River Delta during the late spring and summer. J Appl Meteor Sci, 2001, 12(4): 433-441.

Citation:

Liu Yunce, Zhuang Xudong, Li Xianzhou. Severe local storms initiated by the sea breeze front in the Pearl River Delta during the late spring and summer. J Appl Meteor Sci, 2001, 12(4): 433-441.

Liu Yunce, Zhuang Xudong, Li Xianzhou. Severe local storms initiated by the sea breeze front in the Pearl River Delta during the late spring and summer. J Appl Meteor Sci, 2001, 12(4): 433-441.

Citation:

Liu Yunce, Zhuang Xudong, Li Xianzhou. Severe local storms initiated by the sea breeze front in the Pearl River Delta during the late spring and summer. J Appl Meteor Sci, 2001, 12(4): 433-441.

PDF( 1204 KB)

SEVREE LOCAL STORMS INITIATED BY THE SEA BREEZE FRONT IN THE PEARL RIVER DELTA DURING THE LATE SPRING AND SUMMER

Guangzhou Central Meteorological Observatory, Guangzhou 510080

Received Date: 2000-02-02
Rev Recd Date: 2000-09-04
Publish Date: 2001-11-30

Abstract

Abstract

By using data of auto-observing weather station observations, weather radar echoes, satellite images, surface observations and wind profiles, eight severe weather events which were initiated by sea breeze fronts in the Pearl River Delta, Guangdong Province during the first half of July 1998 are investigated and a severe local storm event in 3 July 1998 is completely and systematically analyzed. A pattern and some activity characteristics of such severe local storms are inducted.
- Sea breeze front;
- Severe local storms;
- Activity characteristics

FullText(HTML)

References(4)

Figures and Tables

图 1 1998年7月3日09:00～13:00 (北京时, 下同) 海风锋强对流天气实况 (≥14 m/s的雷雨大风) 及其相应雷达回波带动态示意图

(大黑点分别是广州、香港和澳门, 实线、阴影区和断矢分别是雷暴带等时线、强雷暴块体及其动态示意, 风标旁的数字表示实况出现的时分)

DownLoad: Full-Size Img PowerPoint

2A 1998年7月3日08:00 (a) 地面和 (b) 850、(c) 500、(d) 200 hPa天气形势示意图

(细线是(T-T_d)线), 粗断线是槽线、切变线或海风锋, 单矢是流线或海陆风, 双矢是急流或地面盛行风, 阴影区是急流变形带区)

DownLoad: Full-Size Img PowerPoint

2B 1998年7月3日08:00~17:00 GMS5气象卫星IR云图增强显示 (MB增强曲线) 云系动态示意图

(横线、阴影和黑区分别是≥-31.2℃ (没有增强的中低云)、≤-32.2 (一般阵性降水) 和≤-43.2℃ (对流云区) 的冷云区, 白色区为副高晴空区)

DownLoad: Full-Size Img PowerPoint

3A 1998年7月3日珠江三角洲地区海风锋活动期地面中尺度分析图

(矢线、断线、和点线分别是流线、海风锋 (切变线) 和等温线, 大黑点分别是广州、香港和澳门)

DownLoad: Full-Size Img PowerPoint

3B 相应时段香港雷达回波图 (回波强度按浅灰(2~10 mm/h)、深灰 (10~20 mm/h) 和黑 (20~50 mm/h) 的顺序判断)

DownLoad: Full-Size Img PowerPoint

4A 1998年7月3日08:00～15:00由于降水和日变化影响所形成的海 (广州市太和镇, 实线)、陆 (珠江口外外伶仃岛, 断线) 温度时间变化曲线

DownLoad: Full-Size Img PowerPoint

4B 1998年7月3日00:00～23:00香港风廓线仪时间剖面

(断线是槽线或切变线, 实线是西南风廓线)

DownLoad: Full-Size Img PowerPoint

图 5 海风锋发展强盛阶段综合概念模式图

(实矢是流线和环境风矢量, 断矢是系统移动矢量和垂直环流, 点矢是相对运动流线, 双矢是急流轴或相对移动系统的环境风, 粗断线是槽线和海风锋, 双点线是变形带, 横线区和点线区分别是平面和垂直面上的回波区)

DownLoad: Full-Size Img PowerPoint

References

[1]	杨国祥, 何齐强, 陆汉城.海风锋.中尺度气象学.北京:气象出版社, 1989.235~242.
[2]	庄荫模, 张裕华, 徐玉貌, 等.华南沿海海岸回波带.华南前汛期暴雨文集.北京:气象出版社, 1981.123~129.
[3]	李明经, 黎华, 吴桂强, 等.广东暖区及冷锋暴雨回波系统综合分析.华南前汛期暴雨文集.北京:气象出版社, 1981.116~123.
[4]	Weldon R.Cloud patterns and the upper wind field.Part IV Satellite Training Course Notes.March.1979. http://www.dtic.mil/docs/citations/ADA099155