| Abstrakt: |
Abstract: Precise position determination of network points, particularly their vertical component is especially difficult in mountainous areas. Significant altitude differences and spatial variations of atmospheric conditions require the best possible approach to tropospheric delay (δ T) estimation expressed by maximum reduction of systematic error caused by tropospheric refraction. The study of influence of tropospheric refraction on GPS measurements was performed on the example of local networ k KARKONOSZE. |
