香港地区地闪时空分布特征及其影响因素
TEMPORAL AND SPATIAL DISTRIBUTION CHARACTERISTICS OF CLOUD-TO-GROUND LIGHTNING ACTIVITY IN HONG KONG AND RELATED IMPACT FACTORS
查看参考文献26篇
|
文摘
|
通过对香港地区2006-2012年闪电定位数据、气象参数和海拔高度等相关数据的统计及相关性分析,对香港地区的地闪活动时空分布特征及其影响因素进行研究。结果表明,香港地区2006-2012年的地闪发生次数最多的是2010年,最少是2011年,每年地闪高发日的天数对地闪活动年际变化起到了关键性作用。地闪活动的发生主要集中在4-9月,逐月地闪回击次数与气温、相对湿度、降雨量及CAPE均呈现显著的正相关关系。地闪活动的日变化特征主要受到地闪高发日闪电活动、海陆热力差异及太阳辐射变化的综合影响,正、负地闪回击次数的日变化峰值均出现在01时。香港西部地区的正地闪回击密度明显高于东部,而负地闪回击密度的高值中心主要集中在海拔较高的山区。香港地区正、负地闪回击密度均随海拔的升高而有所增加,且六座典型山峰周围的负地闪回击密度与海拔高度在空间分布特征上具有很强的相似性。 |
|
其他语种文摘
|
Cloud-to-ground (CG) lightning location data during 2006-2012 along with other relevant data, including meteorological parameters and terrain elevation, are analyzed to explore the characteristics of CG lightning activity in Hong Kong and related impact factors. Results show that the largest number of CG lightning strokes was detected in 2010 and the smallest number in 2011. The number of the days with high CG lightning frequency played a key role in the inter-annual variation of CG lightning activity in Hong Kong. The occurrence of CG lightning mainly concentrated between April and September. Positive correlations were shown between the monthly mean value of CG lightning stroke density and meteorological parameters, including temperature, relative humidity, rainfall and CAPE. The most active time for both positive and negative CG lightning strokes was about 1:00 a.m. Lightning activity on the days with high CG lightning frequency, variation of solar radiation and differences in the thermodynamic characteristics between land and ocean were the main factors that affected the daily variation. In terms of spatial distribution, positive CG lightning stroke density over western areas was much higher than that over eastern areas, and areas with high negative CG lightning stroke density were mainly located around mountainous areas with high terrain elevation. Both positive and negative CG lightning stroke density showed a positive correlation with terrain elevation, and spatial distribution of negative CG lightning stroke density around six typical mountains showed a strong similarity with that of terrain elevation. |
|
来源
|
热带气象学报
,2017,33(5):617-626 【扩展库】
|
|
DOI
|
10.16032/j.issn.1004-4965.2017.05.005
|
|
关键词
|
地闪回击密度
;
时空分布
;
气象条件
;
海拔高度
|
|
地址
|
中国科学院广州地球化学研究所, 有机地球化学国家重点实验室;;广东省环境资源利用与保护重点实验室, 广东, 广州, 510640
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1004-4965 |
|
学科
|
大气科学(气象学) |
|
基金
|
国家自然科学基金
;
中国博士后科学基金
|
|
文献收藏号
|
CSCD:6102539
|
参考文献 共
26
共2页
|
|
1.
易燕明. 近50年广东省雷暴、闪电时空变化特征的研究.
热带气象学报,2006,22(6):539-546
|
被引
26
次
|
|
|
|
|
2.
郭凤霞. 估算闪电产生氮氧化物量的研究回顾与进展.
地球科学进展,2013,28(3):305-317
|
被引
5
次
|
|
|
|
|
3.
Ma M. Climatological distribution of lightning density observed by satellites in China and its circumjacent regions.
Sci China Ser D: Earth Sci,2005,48(2):219-229
|
被引
13
次
|
|
|
|
|
4.
郑栋. 我国地闪活动和降水关系的区域差异.
热带气象学报,2012,28(4):569-576
|
被引
9
次
|
|
|
|
|
5.
吴安坤. 近60年香港地区雷暴日数变化特征分析.
科技经济市场,2012(10):8-11
|
被引
1
次
|
|
|
|
|
6.
Liu Y. Physical and observable characteristics of cloud-to-ground lightning over the Pearl River Delta region of South China.
Journal of Geophysical Research-Atmospheres,2014,119(10):5986-5999
|
被引
1
次
|
|
|
|
|
7.
王义耕. TRMM卫星观测到的华南地区的闪电时空分布特征.
热带气象学报,2009,25(2):227-233
|
被引
14
次
|
|
|
|
|
8.
Cummins K L. A combined TOA/MDF technology upgrade of the US National Lightning Detection Network.
J Geophys Res. D,1998,103(D8):9035-9044
|
被引
53
次
|
|
|
|
|
9.
Schulz W. Cloud-to-ground lightning in Austria: A 10-year study using data from a lightning location system.
J Geophys Res. D,2005,110(D9):1637-1639,D09101
|
被引
1
次
|
|
|
|
|
10.
盛梅. 基于Arc GIS空间分析的闪电密度图绘制方法.
电脑知识与技术,2009,5(8):1982-1985
|
被引
4
次
|
|
|
|
|
11.
赵伟. 浙江省雷电时空分布特征及影响因素分析.
电网技术,2013,37(5):1425-1431
|
被引
8
次
|
|
|
|
|
12.
李江南. 广东省前汛期和后汛期降水的气候特征.
中山大学学报(自然科学版),2002,41(3):91-98
|
被引
28
次
|
|
|
|
|
13.
张永佳. 利用人工神经网络对照MTSAT数据至雷达发射率的一种强对流云辨认方法.
第二十六届粤港澳气象科技研讨会,2012
|
被引
1
次
|
|
|
|
|
14.
Tan Y. Lightning flash density in relation to aerosol over Nanjing(China).
Atmos Res,2016,174/175(1):1-8
|
被引
1
次
|
|
|
|
|
15.
Price C. Global surface temperatures and the atmospheric electrical circuit.
Geophys Res Lett,1993,20(13):1363-1366
|
被引
8
次
|
|
|
|
|
16.
Ma M. Response of global lightning activity to air temperature variation.
Chinese Sci Bull,2005,50(22):2640-2644
|
被引
9
次
|
|
|
|
|
17.
Siingh D. Lightning and convective rain study in different parts of India.
Atmos Res,2014,137(1):35-48
|
被引
1
次
|
|
|
|
|
18.
张义军. 闪电活动的气候学特征研究进展.
气象学报,2008,66(6):906-915
|
被引
22
次
|
|
|
|
|
19.
Galanaki E. A ten-year analysis of cloud-to-ground lightning activity over the Eastern Mediterranean region.
Atmos Res,2015,166:213-222
|
被引
2
次
|
|
|
|
|
20.
Siingh D. Lightning, convective rain and solar activity-Over the South/Southeast Asia.
Atmos Res,2013,120/121:99-111
|
被引
2
次
|
|
|
|
|
了解气象卫星更多信息，请访问