华南地区低温雨雪事件的时空变化特征

	华南地区低温雨雪事件的时空变化特征
其他题名	Spatio-temporal variation of cold rain and snow events over South China
	陆虹 1; 周秀华 2; 黄卓 3; 秦川 4; 农孟松 5
	2019
发表期刊	生态学杂志
ISSN	1000-4890
卷号	38 期号:1 页码:237-246
摘要	We defined and detected the station-based and regional persistent cold rain and snow events over South China( Guangxi and Guangdong) using observation data from 178 stations during 1951-2012, and analyzed their spatio-temporal variation. We aimed to provide a reference for the prediction of cold rain and snow events and for the estimation of the impacts of cold rain and snow events on ecological environment in winter over South China. Station-based events over South China occurred mainly in the north of 23°N, and high-frequency events area mainly concentrated over northeast Guangxi and northwest Guangdong. The regional events mainly occurred in the north of 24°N, and high-frequency events area was similar with the station-based events. The most station-based and regional persistent cold rain and snow events occurred in January,followed by February. The events were more frequent in the 1970s and 1980s, consistent with the climatic change characteristics of winter temperature over South China. The occurrence of cold rain and snow events was closely related to elevation and terrain. The events occurred more easily in the stations with elevation between 100-200 m. The analysis of the intensity of regional persistent cold rain and snow events using the cold-wet index showed that serious events were more frequent in the 1970s. After the 1990s, the serious events tended to be reduced but the severity was more extreme.
其他摘要	利用华南地区的广西壮族自治区和广东省的178个气象站1951 2012年的观测资料,对华南地区单站和区域持续性低温雨雪事件进行了定义和检测,并对其时空变化特征进行了分析,目的是为华南冬季低温雨雪事件预测及低温雨雪灾害对生态环境影响预估提供参考.结果表明:华南地区单站低温雨雪事件主要发生在23°N以北地区,事件高频区主要集中在广西的东北部和广东的西北部,而区域持续性低温雨雪事件则主要发生在24°N以北,事件影响区域与单站事件高频区基本相同;单站和区域持续性低温雨雪事件发生频次最多的月份都是1月,2月次之,且都是在20世纪七八十年代发生次数较多,这与华南区域冬季气温的气候变化特征较为相符;低温雨雪事件的发生与海拔有密切关系,海拔在100~200 m的站点较容易发生低温雨雪事件;利用冷湿指数分析区域持续性低温雨雪事件的强度发现,严重的事件多发生在70年代,进入90年代后,呈现减少的趋势,但事件的严重性及造成的灾害趋于极端.
关键词	华南地区持续性低温雨雪区域性 South China persistent cold rain and snow regionality
收录类别	CSCD
语种	中文
WOS关键词	Life Sciences & Biomedicine - Other Topics
WOS研究方向	Science & Technology
WOS类目	BIOLOGY
CSCD记录号	CSCD:6419442
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
专题	任务一_子任务一循证社会科学证据集成任务一
作者单位	1.广西壮族自治区气候中心, 南宁, 广西 530022, 中国 2.广西壮族自治区气候中心, 南宁, 广西 530022, 中国 3.广西壮族自治区气候中心, 南宁, 广西 530022, 中国 4.广西壮族自治区气候中心, 南宁, 广西 530022, 中国 5.广西壮族自治区气象台, 南宁, 广西 530022, 中国
推荐引用方式 GB/T 7714	陆虹,周秀华,黄卓,等. 华南地区低温雨雪事件的时空变化特征[J]. 生态学杂志,2019,38(1):237-246.
APA	陆虹,周秀华,黄卓,秦川,&农孟松.(2019).华南地区低温雨雪事件的时空变化特征.生态学杂志,38(1),237-246.
MLA	陆虹,et al."华南地区低温雨雪事件的时空变化特征".生态学杂志 38.1(2019):237-246.