主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2020, Vol. 36 ›› Issue (6): 108-114.doi: 10.3969/j.issn.1673-503X.2020.06.013

• 论文 • 上一篇    下一篇

1969—2018年金华市舒适度和冷/热日特征分析

冯晓钰1(),周广胜2   

  1. 1. 金华市气象局, 浙江 金华 321000
    2. 中国气象科学研究院, 北京 100081
  • 收稿日期:2020-03-28 出版日期:2020-12-30 发布日期:2021-01-06
  • 作者简介:冯晓钰, 女, 1993年生, 工程师, 主要从事生态气象研究和公共气象服务业务, E-mail:zjpjfxy@163.com
  • 基金资助:
    金华公共气象服务创新团队项目和金华市气象局青年项目(2019QN05)

Analysis of the annual and seasonal comfort degree and cold/hot days characteristics in Jinhua from 1969 to 2018

Xiao-yu FENG1(),Guang-sheng ZHOU2   

  1. 1. Jinhua Meteorological Service, Jinhua 321000, China
    2. Chinese Academy of Meteorological Sciences, Beijing 100081, China
  • Received:2020-03-28 Online:2020-12-30 Published:2021-01-06

摘要:

利用1969—2018年气象观测资料对金华市年、季尺度的舒适度和冷/热日数进行分析。结果表明:金华市全年和各季节的平均有效温度均呈显著上升趋势,2000年前后稳定超过平均值且上升趋势增加;年均气候倾向率为0.67℃/10 a,各季节的上升趋势不同,其中冬季最大,夏季最小。暖冬或冷冬的概率呈先增后减再略增的N型变化趋势,热夏或凉夏的概率呈弱增加趋势。舒适期呈双峰型分布,主要集中在4—6月和9—10月,其中5月的舒适日数最多。舒适期的50 a平均初、终日分别为4月4日和11月8日,随时间推移,初日呈显著提前趋势(约5.7 d/10 a),终日呈显著延后趋势(约4 d/10 a),气候舒适率总体呈不显著的弱上升趋势。年舒适日数和热日数呈显著增加趋势,分别为5.08 d/10 a和2.31 d/10 a,冷日数呈显著下降趋势,达7.39 d/10 a。整体来看,金华市冬季气温较以往更为温暖,夏季更热,春季舒适时间明显增多,秋季的冷不舒适体感时间明显减少。

关键词: 舒适度, 冷日, 热日

Abstract:

The daily effective temperature was calculated using the observation data from Jinhua meteorological station from 1969 to 2018, and the annual and seasonal average effective temperatures were calculated.The linear trend was used to estimate the change trend and the characteristics of the cold/hot/comfort days were statistically analyzed on multiple time scales.The results show that the average effective temperature of Jinhua city shows significant fluctuation and rising trend throughout the year and seasons.It crosses the average value steadily around 2000 and shows the increasing trend with an annual climate tendency rate of 0.67℃/10 a, and the fluctuation amplitude and upward trend are different among seasons with the largest in winter and the smallest in summer.The probability of warm or cold winter increases first, then decreases, and then increases slightly as the N-type, while the probability of hot summer or cold summer increases weakly.The comfort period shows a bimodal distribution, mainly concentrates in April-June and September-October, with the most comfortable days in May.The 50-year average beginning and end dates of the comfort period are April 4 and November 8, respectively.Over time, the initial date shows a significant advance trend (about 5.7 d/10 a), while the end date shows a significant delay trend(about 4 d/10 a).The overall climate comfort rate shows a weak upward trend.The numbers of comfortable days and hot days increase significantly with the rates of 5.08 d/10 a and 2.31 d/10 a respectively, while the number of cold days decreases significantly, reaching 7.39 d/10 a.On the whole, the winter in Jinhua city is milder, while the summer is hotter relative to foretime.Meanwhile, the comfortable time in spring increases significantly, while the cold uncomfortable time in autumn reduces significantly.

Key words: Comfort degree, Cold days, Hot days

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