EIGEN-GL04C：GRACE卫星的科学成果之一（图）

    9月6日的《自然》刊登了与EIGEN-GL04C相关的文章，EIGEN-GL04C是一种完全阶次为360的重力场模型，是去年三月份构造完的。

   从http://www.gfz-potsdam.de/pb1/op/grace/results/index_RESULTS.html可以看到以下的重力场成果，准确地说法是，EIGEN-GL04C不仅使用了GRACE获取的卫星数据，还使用了地球动力学卫星LAGEOS的数据以及地面重力数据。

  下面的图片比较美观，笔者猜测，可能进行了艺术加工，但是网站上没有说。

 

Gravity Field（重力场）

• New: Satellite-only gravity model EIGEN-GL04S1 complete to degree and order 150 from GRACE and Lageos data, released May 24, 2006
• Combined gravity field model EIGEN-GL04C complete to degree and order 360 from GRACE, Lageos and surface gravity data, released on March 31, 2006
• Combined gravity field model EIGEN-CG03C complete to degree and order 360 from CHAMP, GRACE and surface gravity data, released on May 12, 2005
• Combined gravity field model EIGEN-CG01C complete to degree and order 360 from CHAMP, GRACE and surface gravity data, released on October 29, 2004
• GRACE satellite-only Earth gravity field model EIGEN-GRACE02S complete to degree and order 150 released on February 13, 2004 to the GRACE Science Team and August 9, 2004 to the public
• First GFZ GRACE gravity field model EIGEN-GRACE01S released on July 25, 2003

The EIGEN and other recent or historical gravity field models are collected at the International Centre for Global Earth Models (ICGEM) at http://icgem.gfz-potsdam.de/ICGEM/ICGEM.html. There you can find e.g. vizualization procedures or software tools for gravity field coefficients manipulation and transformation.

 

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