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美国航空航天局的科学家根据“火星全球勘测者”探测飞船发回的数据,绘制出首批火星表面三维地形图。从图中可以看出:这个红色星球的形状有点象一个梨——地势女南高北低,南半球是高耸的火山山脉,而北半球则是平坦的盆地。火星三维地形图科学家绘出的火星三维地形图。这是一个假彩色动画,展现了火星这个球体每隔90度的外观,共4幅。不同颜色代表不同的海拔高度:红色和白色表示较高的海拔,蓝色表示较低的海拔。“火星全球勘测者”上的激光高度计(MOLA)对此进行了标准测量,该设备向火星表面发射激光脉冲,根据其中的时间差计算火星表面各部位的高度,数据由火星轨道激光
NASA scientists plotted the first three-dimensional topographic maps of the surface of Mars on the basis of data from the “Mars Global Surveyor” spacecraft. As can be seen from the figure, the shape of this red planet is a bit like a pear - the topography is high in the south and low in the north, the southern volcano is a towering volcanic mountain, while the northern hemisphere is a flat basin. Mars three-dimensional topographic map drawn by scientists on the three-dimensional map of Mars. This is a fake color animation showing the outward appearance of the sphere at 90 degrees from Mars, a total of four. Different colors represent different altitudes: red and white indicate higher altitude, and blue indicates lower altitude. A standard laser altimeter (MOLA) on the Mars Global Surveyor was used to launch a laser pulse to the surface of Mars, calculating the height of each part of the surface of the Mars based on the time difference between the data and the data from the orbital laser