| 摘要: |
| 以岳阳市城区11个气象站点逐小时气温资料为基础，利用Pearson相关分析、气候倾向率、M-K突变分析、克里格差值法等方法分析了岳阳城市热岛效应的时空分布特征。结果表明：在气候变暖的大背景下，岳阳城区具有中等强度的城市热岛效应，其年平均强度为2.1 ℃，并呈现自东北部、西南部郊区向中心城区递增的空间分布特征，城区中西部的东茅岭—枫桥湖片区是热岛强度中心。岳阳城市热岛效应具有季节差异和昼夜增暖的对称性，其热岛强度具有冬强夏弱、夜强昼弱的特征，且存在稳定—突变—稳定的周期性日变化，早、晚两个突变时段的热岛强度变幅达0.4 ℃/h。 |
| 关键词: 长江中游；水网地区；岳阳；城市热岛效应 |
| DOI： |
| 投稿时间：2019-08-03 |
| 基金项目:湖南省气象局科研课题（XQKJ19B027）：岳阳城市热岛效应及通风廊道研究 |
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| Urban Heat Island Effect of Water Network Regions in the Middle Reach of the Yangtze River——Taking Yueyang City as an Example |
| ZHU Hao,JIANG Shuai,XIAO Ping |
| (Yueyang Meteorology Bureau,Yueyang 414000 , China) |
| Abstract: |
| The temporal and spatial distribution characteristics of urban heat island effect in Yueyang were analyzed with the Pearson correlation analysis, climate trend rate, M-K mutation analysis, and kriging difference method. This analysis process was based on the hourly temperature data collected from eleven (11) meteorological stations. The research results show that the urban heat island effect of Yueyang is moderate intensity with an annual average intensity of 2.1 ℃ under the global climate warming. The heat island effect is increasing from the northeast and southwest suburbs to the downtown area. Urban Dongmaoling-Fengqiao lake area in the central and western is the center of the effect. It is seasonal difference and symmetrical between day and night warming. The intensity is stronger in winter and weaker in summer, stronger at night and weaker in daytime. The periodic diurnal variation is among stable, unstable, and stable. The variation value of heat island intensity in early and late unstable period is up to 0.4 ℃/h. |
| Key words: middle reach of the Yangtze River； water network regions； Yueyang； urban heat island effect |
