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1 2006

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Precise measurements of the changes of the ground water level in Lamkowko satellite observatory. Preliminary results

Krankowski A., Kaczorowski M., Baran L., Sieradzki R., Krypiak A.

Reports on Geodesy

2006

z. 2/77

47-52

In the years 2003-2005 in the Lamkowko Satellite Observatory a measuring well equipped with a measuring float was establisshed. This measurement instrument was constructed jointly with Space Research Center of Polish Academy of Sciences. The measuring system enables to detect precisely changes in the level of ground water. The changes in the water level are measured with the accuracy better than 0.1 mm. the obtained accuracy of measuring allows to detect several phenomena: meteorological ones, geodynamics one4s, Earth tides. In this paper, the preliminary results of the first time series of changes of changes in the level of ground water are presented. The time series of these measurements, utilized in this study, cover only 4 months (from January to April 2006). Preliminary results enable to detect diurnal and semidiurnal oscillations.