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以下资料说是:国际重力界期盼已久的GOCE卫星,要在这个月发射.由于等米(----GOCE获取的实际数据)下锅,众多研究者已经消磨了些许时光,处理GOCE获取的重力梯度(重力位的二阶导数)的软件已经有N种.
只要数据有了,相信会引发一个股论文潮.不会再总是以模拟数据进行模拟计算了,这样的结果才让人更兴奋.
实测数据将检验以下三个预期结果:
以下资料来自欧洲空间局网站
http://www.esa.int/esaLP/ESAYEK1VMOC_LPgoce_0.html
ESA's gravity mission GOCE
Planned for launch in March 2009, ESA's Gravity field and steady-state Ocean Circulation Explorer (GOCE) has been developed to bring about a whole new level of understanding of one of the Earth's most fundamental forces of nature – the gravity field.
Dubbed the 'Formula 1' of spacecrafts, this sleek high-tech gravity satellite embodies many firsts in terms of its design and use of new technology in space to map Earth's gravity field in unprecedented detail. As the most advanced gravity space mission to date, GOCE will realise a broad range of fascinating new possibilities for the fields of oceanography, solid Earth physics, geodesy and sea-level research, and significantly contribute to furthering our understanding of climate change.
Although invisible, gravity is a complex force of nature that has an immeasurable impact on our everyday lives. It is often assumed that the force of gravity on the surface of the Earth has a constant value, but in fact the value of 'g' varies subtly from place to place. These variations are due to a number of factors such as the rotation of the Earth, the position of mountains and ocean trenches and variations in density of the Earth's interior.
橙色部分大意:
尽管重力不可见,这种复杂的力,一直在(难以估量地)影响着我们的生活.人们常假定重力的数值恒定,其实它(以g表示)随空间的变化在奇妙地变化着,影响因素有地球的自转,山脉海沟的位置,以及地球内部密度的变化等.
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