Možnosti eliminácie vplyvu vertikálnej refrakcie pri trigonometrických meraniach prevýšení =Possible elimination of vertical refraction influence on trigonometrically measured elevations

Abstract

Refraction can be regarded as a major source of systematic errors which affecting the reliability and accuracy of surveying measurements. Brief view and description of existing methods for the elimination of vertical refraction on trigonometrically measured elevations. Except for classical approaches, i.e. altimetric networks adjustment with unknown refraction coefficients or reciprocal zenith angles measurement the attention is also given to relatively new methods. Two approaches based on the atmospheric turbulence and dispersion method are introduced