Quasigeoid-to-geoid determination by EGM08
2012 (English)In: Earth Science Informatics, ISSN 1865-0473, Vol. 5, no 2, 87-91 p.Article in journal (Refereed) Published
We present a method to estimate the difference between quasigeoid and geoid heights globally from the Earth Gravitational Model EGM08 and a related topographic model. The numerical computations with the standard topographic density of 2.67 g/cm(3) show that the maximum and minimum of the separations are estimated to 5.47 m and -0.11 m on the Tibet plateau and in the Indian Ocean, respectively. These estimates do not consider possible topographic density variations, which result in topographic bias changes proportional to the topographic elevation squared. Assuming such density changes of 10% from the standard value, the separation may change up to 5 dm.
Place, publisher, year, edition, pages
2012. Vol. 5, no 2, 87-91 p.
Geoid, Quasi-geoid, EGM08
IdentifiersURN: urn:nbn:se:kth:diva-99081DOI: 10.1007/s12145-012-0098-7ISI: 000305461100002ScopusID: 2-s2.0-84862615265OAI: oai:DiVA.org:kth-99081DiVA: diva2:541540
QC 201207192012-07-192012-07-132012-07-19Bibliographically approved