资阳市城市街道日照条件分析

Study of Sunshine Duration in the City Streets of Ziyang

随着城市建设的快速发展,城市居民享受"阳光权"的问题越来越受到重视,这篇文章利用城市街道日出日落时间公式和计算机程序,推算了四川省资阳市区不同街道走向、不同宽高比(L/H)、从春分至秋分和秋分至春分的可照时数,并据此分析了不同街道走向、宽高比、太阳赤纬等对资阳市城市街道可照时数的影响,得出资阳市以东西走向最为有利,街道宽高比适宜增大更有利于日照;利用四川省资阳市气象局近5年的实际日照时数、云量等观测资料,经过统计分析,得出云量等天空状况对资阳市日照条件有很大影响。

The rights of ＂sharing the sun light＂ of citizens has gained more emphasis than ever before with the development of the metropolitan.A theoretical formula is presented for calculating the sun＇s angle at sunrise and sunset with the divert headings of the streets and the different ratio of length to height combined with the period from the Vernal Equinox to the Autumnal Equinox and vice versa in Ziyang City.It has been point out that the east-to-west orientation of the streets is far superior to any other orientation,and that the proper ratios（L/H） is needed for better sunshine.Using last five years actual hours to the sun and the observed materials proposed for the implementing of statistics analysis,it has been pointed out that in Ziyang city,the amount of the clouds has overwhelming impact on the time in getting sunlight.