过去50年内蒙古极端气候事件时空格局特征
The spatial and temporal analysis of extreme climatic events in Inner Mongolia during the past 50 years
查看参考文献27篇
|
文摘
|
为了掌握内蒙古极端气候事件的发生趋势与时空格局,本文运用内蒙古自治区境内46个国家级气象站点的日值记录数据,计算与植被生长的水热条件及寒旱灾害直接相关的极端气候事件指数,分析过去50年内蒙古温度和降水气候事件的时空演变特征。研究结果表明,研究区极端温度事件的发生频率与持续时间迅速变化发生于20世纪90年代以来,60年代至80年代末呈平稳态势。表征低温事件的霜日日数(FD0)、冷昼日数(TX10p)、冷夜日数(TN10p)、冷持续指数(CSDI)等指数均呈现下降趋势,同时表征高温事件的夏日指数(SU25)、作物生长期(GSL)、暖昼日数(TX90p)、暖夜日数(TN90p)、热持续指数(WSDI)则均呈上升趋势。与极端高温事件发生频率的加剧在90年代初开始凸显不同,表征强降水事件发生频率和强度的极端降水指标的显著变化发生在近10年。研究区极端温度指数过去50年的变化过程几乎没有明显的空间分异特征,但是在位于农牧交错区的部分站点的强降水事件呈现出与大多数站点不同的特征,最近10年的强降水事件高于前一时段,而其他多数站点最近10年的极端降水指数均低于前一时段。 |
|
其他语种文摘
|
Frequently occurrences of extreme climatic events in recent years have become a focus of sustainability research, because they threaten the ecosystem balance and even the sustainable development of social-ecological system. In this study, by the daily record data of 46 national meteorological stations in Inner Mongolia during the past 50 years, 15 indexes that characterize the frequency and probability of extreme climatic events are calculated with RclimDex (1.0). The trends and spatial pattern of extreme climatic events across this region were obtained. The results indicate that frost day (FD0), the percentile value of cold night (TN10p), the percentile value of cold day (TX10p) and the duration of coldness (CSDI) that characterize the extremely low temperature presented downward trends; meanwhile, summer day (SU25), crop growth period (GSL), the percentile value of warm night, the percentile value of warm day (TX90p) and the duration of warmness (WSDI) that characterize the extremely high temperature showed upward trends. Since the 1990s, the frequency and duration of extreme temperature events increased fast in comparison with the smooth trends from the 1960s to the late 1980s. Different from extreme temperature events, obvious extreme precipitation events variation started since the latest 10 years, heavy precipitation and 5-daily maximum precipitation were both much lower than those in the preceding 40 years. Extreme temperature indexes in 46 sites in the study area almost had the same variation process and there was no clear spatial differentiation. However, at some sites located in the farming-pastoral ecozone, heavy precipitation events occurred more frequently in recent 10 years than in the preceding 40 years, while the heavy precipitation events in recent 10 years occured less frequently than in the preceding periods at the other sites. |
|
来源
|
地理研究
,2014,33(1):13-22 【核心库】
|
|
关键词
|
气候变化
;
极端温度
;
极端降水
;
内蒙古
|
|
地址
|
中国科学院地理科学与资源研究所, 北京, 100101
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-0585 |
|
学科
|
大气科学(气象学) |
|
基金
|
国家自然科学基金项目
;
中国科学院知识创新工程重要方向项目
;
国家973计划
;
科技部国际合作专项项目
|
|
文献收藏号
|
CSCD:5049931
|
参考文献 共
27
共2页
|
|
1.
IPCC.
Climate change 2007: The Scientific basis,2007
|
被引
14
次
|
|
|
|
|
2.
Ciais P. Europe-wide reduction in primary productivity caused by the heat and drought in2003.
Nature,2005,437:529-533
|
被引
162
次
|
|
|
|
|
3.
Jentsch A. Extreme climatic events in ecological research.
Frontiers in Ecology and the Environment,2006,4:235-236
|
被引
2
次
|
|
|
|
|
4.
Smith. The ecological role of climate extremes: Current understanding and future prospects.
Journal of ecology,2011,99(3):651-655
|
被引
18
次
|
|
|
|
|
5.
Anderson R G. Biophysical considerations in forestry for climate protection.
Frontiers in Ecology and the Environment,2010,9(3):174-182
|
被引
14
次
|
|
|
|
|
6.
Endfield G H. The resilience and adaptive capacity of social-environmental systems in Colonial Mexico.
Proceedings of the National Academy of Sciences,2012,109(10):3676-3681
|
被引
5
次
|
|
|
|
|
7.
方修琦. 气候变暖的适应行为与黑龙江省夏季低温冷害的变化.
地理研究,2005,24(5):664-672
|
被引
32
次
|
|
|
|
|
8.
Easterling D R. Observed variability and trends in extreme climate events: A brief review.
Bulletin of the American Meteorological Society,2000,81(3):417-425
|
被引
233
次
|
|
|
|
|
9.
任国玉. 中国极端气候变化观测研究回顾与展望.
气候与环境研究,2010,15(4):337-353
|
被引
142
次
|
|
|
|
|
10.
路云阁. 近40年气候变化及其空间分异的多尺度研究--以内蒙古自治区为例.
地理科学,2004,24(4):432-438
|
被引
36
次
|
|
|
|
|
11.
裴浩. 近40年内蒙古候平均气温变化趋势近.
应用气象学报,2009,20(4):443-450
|
被引
8
次
|
|
|
|
|
12.
韩芳. 气候变化对内蒙古荒漠草原牧草气候生产力的影响.
中国草地学报,2010,32(5):57-65
|
被引
34
次
|
|
|
|
|
13.
高涛. 近47年（1961-2007年）内蒙古地区降水和气温的时空变化特征.
内蒙古气象,2009(1):3-8
|
被引
17
次
|
|
|
|
|
14.
赵媛媛. 干旱化与土地利用变化对中国北方草地与农牧交错带耕地自然生产潜力的综合影响评价.
自然资源学报,2009,24(1):123-135
|
被引
15
次
|
|
|
|
|
15.
刘纪远. 20世纪90年代中国土地利用变化时空特征及其成因分析.
地理研究,2003,22(1):1-12
|
被引
449
次
|
|
|
|
|
16.
刘纪远. 21世纪初中国土地利用变化的空间格局与驱动力分析.
地理学报,2009,64(12):1411-1420
|
被引
294
次
|
|
|
|
|
17.
Pielke R A. The influence of land-use change and landscape dynamics on the climate system: relevance to climate-change policy beyond the radiative effect of greenhouse gases. Philosophical transactions-Royal Society.
Mathematical, Physical and engineering sciences,2002,360:1705-1719
|
被引
44
次
|
|
|
|
|
18.
Werth D. The local and global effects of Amazon deforestation.
Journal of Geophysical Research,2002,107:LBA55. 1-LBA55. 8
|
被引
11
次
|
|
|
|
|
19.
Pitman A J. Impact of land cover change on the climate of southwest Western Australia.
Journal of Geophysical Research,2004,109:D18109
|
被引
4
次
|
|
|
|
|
20.
Govindasamy B. Land use changes and Northern Hemisphere cooling.
Geophysical Research Letter,2001,28:291-294
|
被引
4
次
|
|
|
|
|
了解气象卫星更多信息，请访问