National height system testing in Baltic countries using GNSS measurements

Celms, Armands; Reķe, Ilona; Rekus, Donatas; Balevičius, Giedrius

Use this url to cite publication: https://hdl.handle.net/20.500.12259/91389

National height system testing in Baltic countries using GNSS measurements

Type of publication

Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)

Author(s)

Celms, Armands	Latvia University of Agriculture
Reķe, Ilona	Latvia University of Agriculture
Rekus, Donatas	Kauno technologijos universitetas
Balevičius, Giedrius	Žemės ūkio akademija / Agriculture Academy

Title

National height system testing in Baltic countries using GNSS measurements

Publisher

New York : IEEE, 2017

Date Issued

2017

Extent

p. 257-262

Is part of

BGC Geomatics: Baltic geodetic congress, Gdansk University of Technology, 22-25 June 2017, Poland. New York : IEEE, 2017

Field of Science

Aplinkos inžinerija / Environmental engineering (T004)

Keywords

Abstract

Baltic States have changed their national height systems from Baltic Normal Height System 1977 (BHS-1977) to European Vertical Reference System (EVRS) realizations. There is a transformation formula for getting height difference theoretical value between EVRS realizations and BHS-1977. Performing practical Global Navigation Satellite System (GNSS) measurements and obtained data mathematical processing, there is a possibility to calculate point height difference between GNSS data and data of 1st order levelling networks. For GNSS measurements use for height determination it is very significantly to use advanced measuring technologies and verified data processing methodology. Performed measurements have high accuracy which describes RMS errors. Average error value for axis N and E is 0.001 m, but measurement height component average error value is 0.003 m. Correct and reliable height reference system is an important part of economic planning in Baltic region while the world ocean level rises and rapid climate changes happens.