【摘要】 本文经简单变换将坡地太阳直接辐射计算式化为S_αβ=K（αβ）·S＇,其中S＇为水平地面太阳直接辐射日平均辐照度;K_αβ为坡地直接辐射换算系数。文中着重分析了K（αβ）随坡向、坡度、纬度和季节的变化特征,给出了计算南、北坡最热坡度的表达式。最后计算出我国211个站点全年各月坡地太阳直接辐射日平均辐照度,并以南、北坡20°为例分析讨论了坡地太阳直接辐射地理分布特点。更多还原

【Abstract】 In this paper the formula for calculating direct solar radiation on mountain slopes is changed into Sαβ= S’· Kαβ via simple conversion, where S’ is the daily averaged irradiance of the direct solar radiation on the horizontal surface; Kαβ the conversion coefficient of the direct solar radiation on the slopes. The emphasis is mainly placed on variation characteristics of Kαβ with slope directions, slope angles, latitudes and seasons. The expressions for calculating the degree of the hottest slope on south and north sides are presented. Finally, the daily averaged irradiance of the direct solar radiation on the slopes in various months throughout the year is computed for 211 stations throughout China and their distribution patterns are analyzed by taking 20 °of south slope as the example.更多还原