山区地形改正密度逐次回归选取方法

高维强, 史朝洋, 张利明, 冯旭亮

Successive regression for determining the optimum terrain correction density in mountainous areas

GAO Wei-Qiang, SHI Zhao-Yang, ZHANG Li-Ming, FENG Xu-Liang

图3 研究区地形

Fig.3 The topography in the researched area