Determination of quasigeoid in local network using modern astrogeodetic technologies

Title:

Determination of quasigeoid in local network using modern astrogeodetic technologies

Creator:

Volařík, Tomáš, Radovan Machotka, Kuruc, Michal, Puchrik, Lukáš, and Jurčík, Josef

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:ff46102a-d6cb-44ef-8a36-d620a6487e64
uuid:ff46102a-d6cb-44ef-8a36-d620a6487e64
doi:10.13168/AGG.2013.0043
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, geodezie, geodesy, astrogeodetic vertical deflections, astronomical levelling, quasigeoid heights, Mobile Automated Astronomical System (MAAS), 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

This study shows the test usage of Mobile Automated Astronomical System No. 1 (M AAS-1) in a local network with an are a of approximately 50 km sq. The network has been built-up especially for experimental purposes to compare the local quasigeoid model determined by three different methods, namely GNSS-levelling, astronomical levelling and gravimetry. The network consists of 34 core points where the astronomic and geodetic coordinates have been measured. Subsequently, the measured data have been processed to obtain vertical deflections and to determine the quasigeoid heights by astronomical levelling. Afterwards, the quasigeoid model has been independently determined also using gravimetric measurements and by the method of GNSS-levelling. In this paper the results of th e comparison of quasigeoid models are being presented. The overall agreement of independently determin ed quasigeoids is on the level of 3 mm. After an overall accuracy evaluation of resulting quasigeoid model authors discuss the benef its of astronomical measur ements using MAAS-1., Tomáš Volařík, Radovan Machotka, Michal Kuruc, Lukáš Puchrik and Josef Jurčík., and Obsahuje bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2013 Volume:10 | Number:4 (172)

Harvested from:

CDK

Metadata only:

false