| 长江三角洲地区人体舒适度时空变化特征北大核心CSCD |
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| 引用本文： | 张春阳,李正泉,肖晶晶,周良女,方贺,张立波,张含.长江三角洲地区人体舒适度时空变化特征北大核心CSCD[J].气候与环境研究,2022,27(5):669-678. |
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| 作者姓名： | 张春阳 李正泉 肖晶晶 周良女 方贺 张立波 张含 |
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| 作者单位： | 1.衢州市气象局，浙江衢州 3171002.浙江大学地球科学学院，杭州 3100273.浙江省气候中心，杭州 3100524.绍兴市气象局，浙江绍兴 312000 |
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| 基金项目： | 国家自然科学基金项目42005027，浙江省气象科技计划项目2018QN06、2020ZD09、2020YB04、2021YB07、2021YB28，衢州市科技计划指导项目2019034 |
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| 摘 要： | 基于1981~2020年ERA5逐小时再分析资料,采用通用热气候指数(Universal Thermal Climate Index,UTCI)计算方法,分析了气候变化背景下长江三角洲地区人体生理热响时空变化特征。研究表明:近40年长江三角洲地区人体无冷热胁迫气候条件的出现频率约为43.77%、热胁迫和冷胁迫出现频率分别约为22.42%和33.81%,其中,显著热胁迫和显著冷胁迫出现频率分别约为8.38%和1.58%;在空间分布上,长江三角洲地区无冷热胁迫气候条件的出现频率总体表现为南多北少地带性分布,兼有山区多平原少、沿海多内陆少分布特征,显著热胁迫主要出现在皖西和皖南的平原以及浙江的嘉绍平原和金衢盆地,显著冷胁迫主要出现在苏北、皖北和舟山以北的沿海岸区;在全球气候变暖背景下,长江三角洲地区UTCI值的年代际变化呈上升趋势,由1981~1990年13.83℃增加至2011~2020年14.75℃,人体生理热响应表征为冷胁迫减少、热胁迫增加、无冷热胁迫基本不变,春季无冷热胁迫时长的增加基本抵消了夏季无冷热胁迫时长的减少。
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| 关 键 词： | 通用热气候指数(UTCI) ERA5 资料 冷热胁迫 气候指数 长江三角洲 |
| 收稿时间： | 2021-08-24 |
Spatio-temporal Characteristics of Thermal Comfort in the Yangtze River Delta |
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| Chunyang ZHANG,Zhengquan LI,Jingjing XIAO,Liangnü ZHOU,He FANG,Libo ZHANG,Han ZHANG.Spatio-temporal Characteristics of Thermal Comfort in the Yangtze River Delta[J].Climatic and Environmental Research,2022,27(5):669-678. |
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| Authors: | Chunyang ZHANG Zhengquan LI Jingjing XIAO Liangnü ZHOU He FANG Libo ZHANG Han ZHANG |
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| Institution: | 1.Quzhou Meteorological Bureau, Quzhou, Zhejiang Province 3171002.College of Earth Sciences, Zhejiang University, Hangzhou 3100273.Zhejiang Climate Center, Hangzhou 3100524.Shaoxing Meteorological Bureau, Shaoxing, Zhejiang Province 312000 |
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| Abstract: | Based on the hourly reanalysis data of ERA5 from 1981 to 2020, the temporal and spatial variation characteristics of human physiological thermal response in the Yangtze River Delta under climate change were analyzed by using the Universal Thermal Climate Index (UTCI). The results show that the occurrence frequency of climate conditions with no thermal stress is 43.77%, the occurrence frequency of climate conditions with heat stress and cold stress is 22.42% and 33.81%, respectively. The occurrence frequency of climate conditions with intensity heat stress and intensity cold stress is 8.38% and 1.58%, respectively. In terms of spatial distribution, the occurrence frequency of climate conditions with no thermal stress in the Yangtze River Delta shows a zonal distribution of more in the south and less in the north, meanwhile, the characteristics are diagnosed as more in the mountainous areas and less in the plains, more in the coastal areas and less in the inland areas. The intense heat stress mainly occurs in the plains of western and southern Anhui, plan of Jiaxing and Shaoxing, and basin of Jinhua and Quzhou in Zhejiang. Intensity cold stress mainly occurred in the northern Jiangsu, northern Anhui and coastal areas of northern Zhoushan. Under the background of global warming, the interdecadal variation of UTCI value in the Yangtze River Delta shows an upward trend, increasing from 13.83℃ during 1981?1990 to 14.75℃ during 2011?2020. The physiological thermal response of human body indicates a character of the decrease in cold stress, the increase in heat stress, and no thermal stress remains basically unchanged. The increase of periods with no thermal stress in spring basically offset the decrease of periods with no thermal stress in summer. |
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