Digital Zenith Camera for Vertical Deflection Determination: on the Way to 1 cm Precise Quasi-Geoid Model for Latvia

Katerina Morozova1, Ansis Zarins1, Gunars Silabriedis1, Janis Balodis1 and Reiner Jäger2, (1)University of Latvia, Institute of Geodesy and Geoinformatics, Riga, Latvia, (2)Hochschule Karlsruhe - University of Applied Sciences, Institute of Applied Research, Karlsruhe, Germany