| 1961—2014年中国高温热浪变化特征分析 |
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| 引用本文： | 沈皓俊,游庆龙,王朋岭,孔磊.1961—2014年中国高温热浪变化特征分析[J].气象科学,2018,38(1):28-36. |
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| 作者姓名： | 沈皓俊 游庆龙 王朋岭 孔磊 |
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| 作者单位： | 清华大学 地球系统科学系 地球系统数值模拟教育部重点实验室, 北京 100084;南京信息工程大学 气象灾害预报预警与评估协同创新中心, 南京 210044,南京信息工程大学 气象灾害预报预警与评估协同创新中心, 南京 210044;南京信息工程大学 中英气候变化与评估研究所, 南京 210044,中国气象局气候研究开放实验室, 北京 100081,南京信息工程大学 气象灾害预报预警与评估协同创新中心, 南京 210044;中国科学院大气物理研究所, 北京 100029 |
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| 基金项目： | 国家重点研发计划（2017YFA0603804；2016YFA0601702）；国家自然科学基金项目（41771069）；江苏省杰出青年基金项目（BK20140047）；江苏省大学生实践创新训练计划项目（201410300051） |
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| 摘 要： | 基于全国1961—2014年716个站点的日最高气温资料和高温阈值与热浪HWMI （Heat-Wave Magnitude Index）指数的新定义，分析了全国高温热浪的高温日、热浪频次、HWMI指数的时空变化特征。结果表明：高温日开始早（晚）的地区结束相对较晚（早）。高温日数突变集中于1990s末至本世纪初期。研究时段内，全国性的严重高温热浪事件从7月上旬持续至9月上旬，各旬热浪频次差异较大；云南地区热浪频发于5月，其他月份热浪少见。除淮河流域热浪年频次呈减小趋势，全国其余地区呈现增加趋势，其中两广、云南和海南地区增加趋势最大。热浪指数从1960s—1980s递减，1990s后递增，且1998年后全国高强度热浪频发，特别是长江以南地区。
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| 关 键 词： | 高温热浪 HWMI指数 时空特征 |
| 收稿时间： | 2016/12/17 0:00:00 |
| 修稿时间： | 2017/3/1 0:00:00 |
Analysis on heat waves variation features in China during 1961-2014 |
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| SHEN Haojun,YOU Qinglong,WANG Pengling and KONG Lei.Analysis on heat waves variation features in China during 1961-2014[J].Scientia Meteorologica Sinica,2018,38(1):28-36. |
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| Authors: | SHEN Haojun YOU Qinglong WANG Pengling and KONG Lei |
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| Institution: | Key Laboratory for Earth System Modeling & Department of Earth System Science of Ministry of Education, Tsinghua University, Beijing 100084, China;Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, China,Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, China;Institute of Climate Change and Evaluation between China and UK, Nanjing University of Information Science & Technology, Nanjing 210044, China,Laboratory for Climate Studies, China Meteorological Administration, Beijing 100081, China and Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, China;Institute of Atmosphere Physics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | Based on the definition of high temperature threshold and Heat-Wave Magnitude Index (HWMI), the temporal and spatial characteristics of temperature, heat wave frequency were analyzed by using the daily maximum temperature data from 716 observational stations in China during 1961-2014. Results show that the high temperature day in the area starting early(late) ends up late(early). Abrupt changes of high temperature days mainly happened between the end of twentieth century and the beginning of twenty-first century. Severe heat waves last from early July to early September and have great differences in each period of ten days. In Yunnan, most heat waves happen in May and seldom in other months. In addition to Huaihe River Basin, the tendency of heat wave frequency shows a wide range of positive value, especially in Guangxi, Guangdong, Yunnan and Hainan. HWMI index shows that index decreased progressively from 1960''s to 1980''s, while it increased progressively after 1990''s. What''s more, extreme and severe heat-wave has occurred more frequently since 1998, especially in the southern region of Yangtze River. |
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| Keywords: | Heat wave Heat-wave magnitude index Temporal and spatial characteristics |
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