globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6288410
论文题名:
1961~2014年中国冬季极端低温变化特征分析
其他题名: Changes in Extreme Low Temperature in China in the Winters from 1961 to 2014
作者: 谢星旸1; 游庆龙1; 王雨枭1
刊名: 气候与环境研究
ISSN: 1006-9585
出版年: 2018
卷: 23, 期:4, 页码:624-633
语种: 中文
中文关键词: 冬季 ; 极端气温指数 ; 变化特征
英文关键词: Winter ; Indices of temperature extreme ; Changes
WOS学科分类: METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向: Meteorology & Atmospheric Sciences
中文摘要: 利用中国691个无缺测站点的经均一化处理及质量控制的逐日最高、最低气温资料,基于冷昼日数、冷夜日数、霜冻日数、冰冻日数、月最低气温极大值以及月最低气温极小值等6个由世界气象组织定义的极端气温指数,分析了1961~2014年中国冬季的极端低温变化特征。结果表明:冷昼日数、冷夜日数、霜冻日数以及冰冻日数在全国大部分地区均呈现下降的趋势,下降趋势较为明显的区域集中在东北南部、华北、西北东部、华东、华中、西南及高原地区,全国整体上下降幅度分别为-0.9 d/10 a、-1.7 d/10 a、-1.5 d/10a和-1.4 d/10 a。最低气温极大值和最低气温极小值在全国范围内则主要呈现上升的趋势,全国整体上分别为0.4 °C/10 a和0.6 °C/10 a;极端低温天数在20世纪60年代至70年代中后期呈现波动状,随后自20世纪70年代末80年代初至21世纪初呈明显下降趋势,从2006年左右以后其下降趋势较之前有所减缓,是对全球变暖减缓背景下的气候响应;与其他时间段相比,20世纪60年代至70年代为冬季极端低温事件较为频发的时间段,这可能与该时段陆地冷高压频繁活动有关。
英文摘要: Based on the six indices of temperature extreme defined by the World Meteorological Organization (WMO), this study discusses the extreme low temperature change in China in the winters from 1961 to 2014 by analyzing the daily maximum temperature (Tmax) and minimum temperature (Tmin) data at 691 stations that have no missing values and pass the homogeneity processing1and quality control checks. The results show that the numbers of cool days, cool nights, frost days, and ice days have decreased in most part of China, particularly in the southern part of Northwest China, North China, the eastern part of Northwest China, East China, central China, Southwest China, and plateau regions with the trends of -0.9 d/10 a, -1.7 d/10 a, -1.5d/10 a, and -1.4 d/10 a, respectively. The maximum Tmin and minimum Tmin in the winter have increased across the country with the trends of 0.4 °C/10 a and 0.6 °C/10 a, respectively. The number of days of extreme low temperature fluctuated from the 1960s to the mid-1970s, and then exhibited a downward trend from the late 1970s and the early 1980s to the beginning of the 21th century while the declining trend started to slow down since 2006, which is a response to the global warming hiatus. Compared with other periods, the period from the 1960s to the 1970s represented a period with higher occurrence frequency of extreme low temperature events in the winter, which is possibly associated with the frequency and intensity of cold high pressure system over the land.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/154513
Appears in Collections:气候变化事实与影响

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作者单位: 1.南京信息工程大学
2.南京信息工程大学中英气候变化与评估研究所
3.南京信息工程大学, 气象灾害教育部重点实验室
4.气象灾害预报预警与评估协同创新中心, 南京
5.南京
6.南京,
7.210044
8.210044
9.210044

Recommended Citation:
谢星旸,游庆龙,王雨枭. 1961~2014年中国冬季极端低温变化特征分析[J]. 气候与环境研究,2018-01-01,23(4):624-633
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