Rogers A E, Ingalls R P
Science. 1969 Aug 22;165(3895):797-9. doi: 10.1126/science.165.3895.797.
The surface reflectivity of Venus obtained by radar interferometry at a wavelength of 3.8 centimeters has been mapped for a region extending approximately from -80 degrees to 0 degrees in longitude (Carpenter's definition) and from -50 degrees to +40 degrees in latitude. The map is free from the twofold range-Doppler ambiguity because the interferometer fringe pattern makes possible the separation of two points of equal range and Doppler shift. The map presents many new features and clearly delineates features already observed. Most notably, the map shows large circular regions of significantly lower reflectivity than their surroundinigs.
通过波长为3.8厘米的雷达干涉测量法获得的金星表面反射率，已针对一个区域绘制了地图，该区域的经度范围大约从-80度到0度（根据卡彭特的定义），纬度范围从-50度到+40度。该地图不存在双重距离-多普勒模糊性，因为干涉仪条纹图案使得能够分离出距离和多普勒频移相等的两个点。该地图呈现出许多新特征，并清晰地描绘了已观测到的特征。最值得注意的是，该地图显示出一些大型圆形区域，其反射率明显低于周围区域。
