Геодезия, Картография, Земеустройство | Page 10

Първи резултати от изследване на вертикална рефракция в Антарктика Гл.ас. д-р инж. Борислав Александров Университет по строителство, архитектура и геодезия, София SUMMARY After brief description of the structure of the earth atmosphere and its basic parameters - temeperature, pressure and humidity and after defining of the concept of refraction curve, a description of the vertical refraction investigations made by the Ninth Bulgarian Antarctic Expedition on Livingston Island is given.The appartuses for the carying out of the investigations and the defined points for observations are described.. The acomplished observations by means of 24 reads, the results and conclusions in graphycal form are given. From the analyses of the juxtaposed diagrames a conclusions for the change of the zenith angle depending on the wether, atmospheric pressure and temeperature are made. In the end, a sumarized concusions about the vertical refraction coefficient are given. A necessity for more complicated organisation of the investigations in order to follow the total influance of the atmospphere and to define with sufficient exactitude the coefficient of refraction is emphasized. Основните параметри на атмосферата са: температура, атмосферно налягане и влажност. Температурата на въздуха е много динамичен метеорологичен елемент. В умерените ширини при ясно време тя има определено забе .