论文部分内容阅读
众所周知,地球为梨状体。一般认为,海洋表面相当平坦,尽管有风、潮汐、海底地震所引起的种种波浪,一般说来,波高和波长都比较小,不会改变梨状表面的形状。卫星测量技术的发展,使人们认识到,甚至在风平浪静对,世界大洋表面也有100米以上的隆起和凹陷区域。海洋表面的隆起和凹陷是在100公里以上的范围内逐渐变化的,因此,航海者感觉不到这种变化。目前已经查明,世界大洋表面有三个较大隆起区域:澳大利亚东北部,隆起区域高76米;北大西洋隆
As we all know, the earth is a pear. It is generally accepted that the surface of the ocean is fairly flat, and in spite of the wind, tides and waves caused by the seabed earthquake, wave height and wavelength are generally small and do not change the shape of the pear-shaped surface. The development of satellite measurement techniques has led to the realization that even in the calm of the ocean, there are more than 100 meters of uplift and depression in the world ocean surface. The bumps and valleys on the surface of the ocean are gradually changing over a range of 100 kilometers and therefore the voyagers do not feel such a change. It has been ascertained that there are three major uplift areas on the surface of the world’s oceans: the northeastern part of Australia, with a height of 76 meters in the uplifted area; the North Atlantic Long