Studia Geophysica et Geodaetica

The routine nulling procedure is modified on the basis of the theoretical decay of transient motion of the gravity meter beam and the time needed for its stabilizing.

Описан способ определения координат точек земной поверхности на основе измерения одного базиса, горизонтальных и вертикальных углов (принципиальная возможность решения этой задачи выяснена Молоденским в 1949 г.). Предварительные значения координат и элементов ориентирования местных координатных систем при уравнивании пространственных сетей рекомендовано определять по необходимым измерениям. Приведены дифференциалные формулы геодезических и астрономических азимутов и зенитных расстояний.

Обсуж¶rt;aеmця срaвнumельно нuзкaя mочносmь, с коmороŭ uзвесmны современные знaченuя лaвных моменmов uнерцuu Землu u рaзносmu nосле¶rt;нuх. Рaссмamрuвaеmся возможносmь uсnольвзовaнuя знaченuя нauбольще о моменma С ¶rt;ля оценкu nлоmносmных мо¶rt;елеŭ Землu. По современным ¶rt;aнным вычuслен нauбольщuŭ моменm uнерцuu земно о я¶rt;рa, мaнmuu u коры

Pre-Variscan basement in southern Poland is poorly exposed and thus known mostly from subsurface data. The availability of the latter is reviewed for terrains located between the Sudetes and the East European Platform. In these terrains the following relationships have been documented: Cadomian granitoids capped by Variscan flysch, Palaeozoic platform strata, Palaeozic folded and partly thermally altered successions, and low-grade metamorphic rocks overlain by Middle Cambrian strata. In view of their interrelationships the location of the Avalonia-Baltica suture in southeastern Poland is uncertain.

The catalogue of earthquakes from the Vogtland/Western Bohemia region joins data which have been observed with local seismic stations since 1962. Up to now, data on more than 17.000 earthquakes were compiled to the catalogue. A special code VOCATUS supports its use and explains the collected data. Both, catalogue and code VOCATUS are described. From the catalogue, there follows a recurrence of the earthquake occurrence which is discussed in detail.

The problem of inverting the geopotential series with respect to the geoid radius has been solved. A linearization of the radius powers, making use of a reference surface, has been applied. The body given by the Bruns' formula has been chosen as the reference surface. Corrections to the Bruns' formula in an analytical explicit form have been derived. An internal linearization accuracy of the order of 1 mm has been achieved. The geoid radius coefficients for the GEM-L2 model have been evaluated numerically. The corrections have been found to range from −90 to 90 cm.