globalchange  > 气候变化与战略
CSCD记录号: CSCD:5379752
论文题名:
1960-2013年秦岭淮河南北极端降水时空变化特征及其影响因素
其他题名: Spatiotemporal variability of extreme precipitation in north and south of the Qinling-Huaihe region and influencing factors during 1960-2013
作者: 李双双; 杨赛霓; 刘宪锋
刊名: 地理科学进展
ISSN: 1007-6301
出版年: 2015
卷: 34, 期:3, 页码:134-138
语种: 中文
中文关键词: 气候变化 ; 极端降水 ; 时空变化 ; 秦岭淮河南北
英文关键词: climate change ; extreme precipitation ; spatiotemporal change ; north and south of the Qinling-Huaihe region
WOS学科分类: MULTIDISCIPLINARY SCIENCES
WOS研究方向: Science & Technology - Other Topics
中文摘要: 基于秦岭淮河南北气象站点逐日降水数据和全国0.5°*0.5°逐月降水格网数据,选取16个极端降水指数,辅以趋势分析、Mann-Kendall检验和相关分析等气候诊断方法,分析了1960-2013年秦岭淮河南北极端降水时空变化特征,探讨了极端降水变化与ENSO事件的关系。结果表明:①1960-2013年秦岭淮河南北除长江下游降水呈增加趋势外,其他区域降水均呈下降趋势;②极端降水变化主要表现为:降水日数减少,降水强度上升,突发性强降水事件增多,连续性干旱事件增多;在空间上,秦巴山地、长江下游和黄河下游以极端降水强度上升为主,关中平原、巫山山区和四川盆地以极端干旱强度上升为主;③在影响因素方面,秦岭淮河南北极端降水与ENSO事件关系密切。在厄尔尼诺年,秦岭淮河南北春季极端降水偏多,夏季和全年偏少;在拉尼娜年,春季极端降水偏少,秋季和全年偏多。就各个区域而言,在厄尔尼诺年,黄河下游、关中平原、秦巴山地和四川盆地极端降水呈下降趋势,淮河平原极端降水呈上升趋势,长江下游和巫山山区响应并不明显。
英文摘要: Based on the monthly precipitation of a 0.5°*0.5° grid dataset and the daily precipitation observations of 135 meteorological stations released by the National Meteorological Information Center of China, this study analyzed the spatiotemporal variation of extreme precipitation in north and south of the Qinling-Huaihe region during 1960- 2013, using the methods of trend analysis, Sen + Mann- Kendall model, and correlation analysis.More specifically, we analyzed the relationship between ENSO and the observed extreme precipitation. The results are as follows: (1) the precipitation showed an increasing trend in the lower reach of the Yangtze River and a decreasing tendency in the other regions; (2) extreme precipitation analysis indicates a declining trend in rainy days and an increasing trend in precipitation intensity. The number of continuous drought events increased.Spatially, the regions with increasing intensity of extreme precipitation were mainly distributed in the Qinling-Bashan Mountains and the lower reaches of the Yangtze River and Yellow River, whereas there were more drought events in the Guanzhong Plain, Wushan Mountains, and Sichuan Basin; (3) Extreme precipitation had a close relationship with ENSO in the study region. In El Nino years, more precipitation was found in the spring but there was less precipitation in the summer and the whole year. In La Nina years, there was less precipitation in the spring and more precipitation in the autumn and the whole year. The responses of extreme precipitation events to El Nino exhibited spatial differences. Most of the regions with decreasing extreme precipitation in El Nino years were distributed in the lower reach of the Yellow River, the Guanzhong Plain and Qinling- Bashan Mountains, as well as the Sichuan Basin, while the region with increasing extreme precipitation was the Huaihe Plain. The lower reach of the Yangtze River and the Wushan Mountains showed no clear response to ENSO.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/149106
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: 北京师范大学, 地表过程与资源生态国家重点实验室, 北京 100875, 中国

Recommended Citation:
李双双,杨赛霓,刘宪锋. 1960-2013年秦岭淮河南北极端降水时空变化特征及其影响因素[J]. 地理科学进展,2015-01-01,34(3):134-138
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[李双双]'s Articles
[杨赛霓]'s Articles
[刘宪锋]'s Articles
百度学术
Similar articles in Baidu Scholar
[李双双]'s Articles
[杨赛霓]'s Articles
[刘宪锋]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[李双双]‘s Articles
[杨赛霓]‘s Articles
[刘宪锋]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.