摘要
根据黄山市的纬度、宽高比、太阳赤纬变化确定该地日照时数变化规律。利用理论计算方法进行计算,得到当地日照时数随宽高比、太阳赤纬的变化规律,发现理论上可能日照时数随宽高比的增大而增大,即楼房欲低,间距愈大,可照条件越好。对于不同走向的街道,以东西向日照条件最好,南北向最差。对于不同的季节,以夏至日日照条件最好,冬至日最差。日照时数从夏至日到冬至日随太阳赤纬的减小而减少。实际日照条件还需要根据其他地理因素和气象因素共同确定。
According to the latitude, the ratio of the width and height, and changes in solar declination, the varia tion of sunshine hours in Huangshan City was determined. Calculated by theo retical calculation, which the variation of local sunshine hours could be obtained： the theoretically possible number of sun shine hours increased with the ratio of the width and height.That was to say, the lower the building was, the wider the street was, and the better the sunshine condition was. To different streets, the sunshine hours condition of eastwest was the best, northsouth was the worst. For different seasons, the sunshine in summer solstice was the best, and the sunshine in winter solstice was the worst： From the summer solstice to the winter solstice, the sunshine hours was reduced with the reduction of declination. The de termination of the actual sunshine condi tions also depended on other geographi cal factors and meteorological factors.
出处
《农业灾害研究》
2013年第7期18-20,共3页
Journal of Agricultural Catastrophology
关键词
黄山
街道布局
日照时数
日照条件
Huangshan
Street pattern
Sunshine hours
Sunshine condition
