文档介绍：
沪宁高速公路路面温度的时空变化特征研
究#
包云轩1,2,滕雅文1,2,谢晓金1,2,袁成松1,3*
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(1. 南京信息工程大学江苏省农业气象重点实验室,南京 210044;
2. 南京信息工程大学教育部陆地碳水循环与气候变化创新团队,南京 210044;
3. 江苏省气象科学研究所,南京 210008)
摘要:为探明路面热力状况对道路交通的影响,本文研究沪宁高速公路路面温度的时空变化
特征,比较路面及各层温度的差异,探讨公路沿线地形环境对路面温度变化的影响。研究表
明:(1)公路路面温度的日最高值出现在 13 时左右,最低值出现在 05 时左右;夏季路面
温度日较差最大,冬季最小,春、秋季居中。(2)公路路面平均温度最高月为 8 月,出现
极端最高值;最低月为 1 月,出现极端最低值;垂直方向上路面温度的日、年较差最大。(3)
自西向东,路面温度日较差、年较差逐渐减小;夏季,东段工业园附近易发生路面高温;冬
季,西段汤山附近易发生路面低温。(4)沪宁高速公路路面温度变化的基本特征是在大尺
度气候背景和局地小气候环境的共同作用下形成的。
关键词:沪宁高速公路;路面温度;时空变化;气候背景;环境因素
中图分类号:P49
Study on temporal and spatial pattern of road surface
temperature on Shanghai-Nanjing Expressway in China
Bao Yunxuan1,2, Teng Yawen1,2, Xie Xiaojin1,2, Yuan Chengsong1,3
(1. Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing University of Information
Science & Technology, Nanjing 210044;
2. ‘Carbon and Water Cycle in Land’ Innovation Team, Ministry of Education, Nanjing University
of Information Science & Technology, Nanjing 210044;
3. Jiangsu Meteorological Institute,Nanjing 210008)
Abstract: In order to explore the impact of road thermal condition on road traffic, in this paper,
analyze the temporal and spatial pattern of road surface on the expressway, the differences between the
temperature of the road surface and every layer temperature and the impact of topographic environment
on the road surface temperature was discussed. The results showed as follows: (1) In general, the daily
maximum value of road surface temperature appeared at 13:00 pm (BST), the daily minimum value
occurred at 5:00 am (BST). For a whole year, the daily range of the road surface temperature in
summer was largest, it was least in winter and it was placed in between the largest value and the least
value in spring and autumn. (2) In a year, August was the highest month of monthly average road
surface temperature and January was the lowest month. The extreme maximum surface temperature
appeared in August a