... Influence of GNSS Loading Effects in Geodynamical Studies . ... GPS observations of six permanent stations from Russia, Estonia and Finland around the Gulf Finland carried out from 2006 to 2010 were used to study the atmospheric and hydrologic loading effects on position of stations. ... The velocity of stations corrected for all loading effects was used for assessment of this region's strain field. ... atmospheric loading effect, station, correction, seasonal variation, strain field. ...