现代大地测量学的进展On the development of modern geodesy
陈俊勇
摘要(Abstract):
经典大地测量学主要研究地球的几何形状、定向及其重力场,并关注在地球上点的定位、重力值。现代大地测量则已超过原来经典的研究内容,将原来所考虑的静态内容,在长距离、大范围、实时和高精度测量的条件下,和时间(历元)这一因素联系起来。此外,现代大地测量学提供和处理了涉及原来是地球动力学、行星学、大气学、海洋学、板块运动学和冰川学等学科所需的信息。现代大地测量学可以并已经涉及多种学科领域,并提供多种学科领域长期以来很难取得的数值和有可能解决它们相应的困惑,事实证明现代大地测量学业已形成了学科交叉意义上的一门科学,它将更大地影响和促进地球科学、环境科学和行星科学的发展。
关键词(KeyWords): 现代大地测量学;坐标框架;重力;天气预报;GPS
基金项目(Foundation):
作者(Author): 陈俊勇
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