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

S. J. Claessens; W. E. Featherstone; I. M. Anjasmara

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

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

S. J. Claessens, W. E. Featherstone, I. M. Anjasmara

Curtin University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Citations (Scopus)

Abstract

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 quasigeoid 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.

Original language	English
Title of host publication	Gravity, Geoid and Earth Observation - IAG Commission 2
Subtitle of host publication	Gravity Field
Pages	473-479
Number of pages	7
DOIs	https://doi.org/10.1007/978-3-642-10634-7_63
Publication status	Published - 2010
Event	IAG International Symposium on "Gravity, Geoid and Earth Observation 2008" - Chania, Crete, Germany Duration: 23 Jun 2008 → 27 Jun 2008

Publication series

Name	International Association of Geodesy Symposia
Volume	135
ISSN (Print)	0939-9585

Conference

Conference	IAG International Symposium on "Gravity, Geoid and Earth Observation 2008"
Country/Territory	Germany
City	Chania, Crete
Period	23/06/08 → 27/06/08

Keywords

EGM2008
GPS-levelling
Global geopotential model
Gravity
Validation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

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

Cite this

@inproceedings{dd229e1a9fb24d088dbcb48ff592d845,

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

abstract = "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 quasigeoid 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.",

keywords = "EGM2008, GPS-levelling, Global geopotential model, Gravity, Validation",

author = "Claessens, {S. J.} and Featherstone, {W. E.} and Anjasmara, {I. M.}",

note = "Funding Information: We acknowledge funding from the Australian Research Council via grant DP0663020. Naturally, the suppliers of data are thanked too.; IAG International Symposium on {"}Gravity, Geoid and Earth Observation 2008{"} ; Conference date: 23-06-2008 Through 27-06-2008",

year = "2010",

doi = "10.1007/978-3-642-10634-7_63",

language = "English",

isbn = "9783642106330",

series = "International Association of Geodesy Symposia",

pages = "473--479",

booktitle = "Gravity, Geoid and Earth Observation - IAG Commission 2",

}

Claessens, SJ, Featherstone, WE & Anjasmara, IM 2010, Is Australian Data Really Validating EGM2008, or Is EGM2008 Just in/Validating Australian Data? in Gravity, Geoid and Earth Observation - IAG Commission 2: Gravity Field. International Association of Geodesy Symposia, vol. 135, pp. 473-479, IAG International Symposium on "Gravity, Geoid and Earth Observation 2008", Chania, Crete, Germany, 23/06/08. https://doi.org/10.1007/978-3-642-10634-7_63

Is Australian Data Really Validating EGM2008, or Is EGM2008 Just in/Validating Australian Data? / Claessens, S. J.; Featherstone, W. E.; Anjasmara, I. M.
Gravity, Geoid and Earth Observation - IAG Commission 2: Gravity Field. 2010. p. 473-479 (International Association of Geodesy Symposia; Vol. 135).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review