Is Australian Data Really Validating EGM2008, or Is EGM2008 Just in/Validating Australian Data?

被引：4

作者：

Claessens, S. J. ^{[1
]}

Featherstone, W. E. ^{[1
]}

Anjasmara, I. M. ^{[1
]}

机构：

[1] Curtin Univ Technol, Western Australian Ctr Geodesy, Inst Geosci Res, Perth, WA 6845, Australia

来源：

GRAVITY, GEOID AND EARTH OBSERVATION | 2010年 / 135卷

关键词：

MODEL; AUSGEOID98; ANOMALIES; GRACE;

D O I：

10.1007/978-3-642-10634-7_63

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The tide-free release of the EGM2008 combined global geopotential model and its pre-release PGM2007A are compared with Australian land and marine gravity observations, co-located GPS-levelling on the [admittedly problematic] Australian Height Datum, astrogeodetic deflections of the vertical, and the AUSGeoid98 regional gravimetric quasi-geoid model. The results show that we cannot legitimately claim to truly validate EGM2008. Instead, EGM2008 confirms already-known problems with the Australian data, as well as revealing some previously unknown problems. If one wants to claim validation, then EGM2008 is validated because it can confirm the errors in our regional data. Simply, EGM2008 is a good model over Australia.

引用

页码：473 / 479

页数：7

共 22 条

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