违反了 PRIMARY KEY 约束 'PK_t_counter'。不能在对象 'dbo.t_counter' 中插入重复键。 语句已终止。 1957~2015年我国春季短期温度波动规律-Short-Term Temperature Fluctuation in the Spring in China during 1957-2015
doi:  10.3878/j.issn.1006-9585.2018.17060
1957~2015年我国春季短期温度波动规律

Short-Term Temperature Fluctuation in the Spring in China during 1957-2015
摘要点击 197  全文点击 535  投稿时间:2017-04-02  
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基金:  国家自然科学基金项目41501215、41230744
中文关键词:  短期温度波动  波动频率  波动幅度  波动趋势变化  气候变化
英文关键词:  Short-term temperature fluctuation  Fluctuation amplitude  Fluctuation days  Fluctuation trend change  Climate change
              
作者中文名作者英文名单位
彭凯PENG Kai中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008;中国科学院大学, 北京 100049
邓建明DENG Jianming中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
张运林ZHANG Yunlin中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
龚志军GONG Zhijun中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
秦伯强QIN Boqiang中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
引用:彭凯,邓建明,张运林,龚志军,秦伯强.2019.1957~2015年我国春季短期温度波动规律[J].气候与环境研究,24(1):125-134,doi:10.3878/j.issn.1006-9585.2018.17060.
Citation:PENG Kai,DENG Jianming,ZHANG Yunlin,GONG Zhijun,QIN Boqiang.2019.Short-Term Temperature Fluctuation in the Spring in China during 1957-2015[J].Climatic and Environmental Research(in Chinese),24(1):125-134,doi:10.3878/j.issn.1006-9585.2018.17060.
中文摘要:
      为研究全球变暖背景下我国短期温度波动变化规律,利用全国804个气象站点的逐日气温资料,计算隔日平均温差大于1℃的天数以及隔日温差的变化幅度,分析了1957~2015年我国短期温度波动频率与波动幅度的时空分布与变化规律,探讨了春季短期温度波动与经纬度及海拔之间的关系。结果表明:1957~2015年我国春季短期温度波动大致分为两个阶段:1990年以前我国大部分地区春季短期温度波动频率及幅度没有明显变化趋势,1990年以后我国大部分地区(约70%)春季短期温度波动呈上升趋势。此外,我国春季短期温度波动规律有地域性差异,表现为与经纬度关系密切,波动频率与波动幅度与经纬度等线性相关系数较高。结合波动趋势分布与隔日温度波动的地域分布可知,处于低纬度地区(如广东、广西等地)波动天数和波动幅度均增加,造成人们对于"天气变化无常"的感受强烈。由于生物生长发育等过程与温度密切相关,因此研究结果提示在讨论气候变化对生态系统长期影响时可能还需要关注短期的温度波动情况。
Abstract:
      In order to study the regularity of short-term temperature fluctuation in the context of global warming, daily temperature data collected at the 804 meteorological stations in China are used to count the number of days in which daily average temperature fluctuation is greater than 1℃ and calculate the standard deviation of daily temperature fluctuation. The temporal and spatial distribution and variation of short-term temperature fluctuation days and fluctuation amplitude are analyzed, and the relationships between springtime mean temperature and latitude/longitude/altitude are discussed. The results are as follows. The short-term temperature fluctuation over China in the past six decades can be roughly divided into two stages, i.e., the stage before 1990 when the short-term temperature fluctuation amplitude and fluctuation days did not change in most areas of China, and the stage after 1990 when the short-term temperature fluctuation in most areas of China (about 70%) showed an upward trend. The short-term temperature fluctuation is closely related to latitude and longitude. Combined with regional distribution of the fluctuation trend and fluctuations of daily temperature, it can be seen that the fluctuation amplitude and fluctuation days both increase in the low latitudes, which makes people get a strong feeling about the temperature change. Because the process of biological growth and development is closely related to temperature, results of the present paper suggest that short-term temperature fluctuation may also need to be considered when discussing long-term impacts of climate change on ecosystems.
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