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    Wyświetlanie 1-5 z 5
    Tytuł:
    Hydrogeologiczne przyczyny zmian przyspieszenia siły ciężkości na stanowisku w Obserwatorium Astronomiczno-Geodezyjnym w Józefosławiu
    Hydrogeological influences in the absolute gravity changes at Astro-Geodetic Observatory in Józefosław
    Autorzy:
    Olszak, T.
    Barlik, M.
    Pachuta, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075765.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    siła ciężkości
    pole siły ciężkości
    płyta Bouguera
    efekt hydrogeologiczny
    absolute gravimetry
    gravity field
    Bouguerplate
    hydrogeological effect
    Opis:
    The article presents the results of measurements of gravity performed in the Astronomical and Geodetic Observatory Józefosław. Time series have been verified for parameters related to celestial bodies, atmospheric pressure changes and metrological factors. The analysis of these changes includes geodynamic and hydrological aspects taking into account global and local changes in groundwater levels. The aim of the article is to indicate the interpretation of contemporary measurements of gravity field against the contemporary accuracy of such measurements and to indicate the need for information on the level of groundwater (collected by the Polish Hydrogeological Survey) in procedures for the elaboration and interpretation ofgravimetric measurements and supportfrom hydrogeologists. Contemporary the gravity measurements with use of absolute gravimeters gives possibility determination of gravity value with uncertainty of the order 10-8 ms-2. Such accuracy corresponds to a vertical displacement of a point of less than 1 cm or a change in the water level of 2.5 cm. Use of gravimetric methods in the broadly understood Earth sciences must be supported by information related to changes in mass distribution around the measuring station, mainly related to the groundwater level changes. This allows to see the role of hydrogeological information related to the monitoring of groundwater as an indispensable information describing changes in the Earth’s gravity field.
    Źródło:
    Przegląd Geologiczny; 2017, 65, 11/1; 1139--1143
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Absolute gravimetric determinations of long-standing non-tidal gravity changes in Józefosław Astro - Geodetic Observatory of Warsaw Universitety of Technology and at main tectonic units on Poland territory
    Autorzy:
    Barlik, M.
    Olszak, T.
    Pachuta, A.
    Próchniewicz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/225075.pdf
    Data publikacji:
    2010
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    pomiary grawimetryczne
    Obserwatorium Astronomiczno – Geodezyjnego w Józefosławiu
    gravimetric measurements
    Astronomical-Geodetic Observatory in Józefosław
    Źródło:
    Reports on Geodesy; 2010, z. 2/89; 11-19
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring of the long-standing changes of the absolute gravity in Observatory of Józefosław and at main tectonics units of Poland territory
    Autorzy:
    Barlik, M.
    Olszak, T.
    Pachuta, A.
    Próchniewicz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/224705.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    Obserwatorium Astronomiczno-Geodezyjne w Józefosławiu
    pomiary grawimetryczne
    Astronomical-Geodetic Observatory in Józefosław
    gravimetric measurements
    Opis:
    Gravimetric investigations of the long-standing, not tidal variations of the absolute gravity using ballistic FG - 5 No. 230 gravity meter, bought by Warsaw University of Technology at 2005, were performed on four stations outside the Teisseyre - Tornquist Zone (T - T Zone) as well as at Józefoslaw Astro - Geodetic Observatory of the Warsaw University of Technology, located near Warsaw, near the northern edge of T - T zone on Precambrian Platform. Raw results of observations were corrected by Earth's tide influences, loading effects of the Earth's crust and ocean, by polar motion influence to the gravity as well as from the reason of gravitational and deformation influences of the atmosphere. Monitoring of the gravity on Józefosław station, during three years once a month, pointed out quasi-periodic non-tidal variations. Absolute gravity determinations in previous campaigns (1992 - 2001) on Polish territory were performed using various ballistic gravity meters, many types and quality, as well as there were spread in time. In epochs since 2006 to 2008 with our instrument FG - 5 No. 230 there were obtained the gravity values minor on all investigated stations. It was about 17 žGal on Satellite Lamkówko station, near Olsztyn, and 12 žGal in Borowiec Astro Geodynamical Observatory of the Space Research Centre, Polish Academy of Sciences with comparison to the results from 8 - 10 y earlier obtained using Polish absolute gravity meter ZZG, Italian IMGC and two FG-5 instruments from Austria and USA. The variation since 1996 to 2006 on Giby (station of the gravity national fundamental net) was appeared as only 7.5 žGal. On very stable station Ojców (Seismic Observatory of the Polish Academy of Sciences) located on Świętokrzyskie Mts. craton, the decrease of gravity equal to 9 žGal has been noticed after 9 years. Recovered variations of gravity on Poland territory might have the sources in gravity global or regional variations in the hydrological influences in the vicinity of stations as well as in incorrect earlier determinations of the gravimetric corrections, mainly in vertical gradient of gravity above absolute stations.
    Źródło:
    Reports on Geodesy; 2009, z. 1/86; 61-68
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geodynamical investigations in the Pieniny Mountain in 1994-2010
    Autorzy:
    Walo, J.
    Pachuta, A.
    Próchniewicz, D.
    Szpunar, R.
    Olszak, T.
    Barlik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/224922.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    pomiary grawimetryczne
    Pieniny
    gravimetric measurements
    Pieniny Mts.
    Opis:
    Geodynamical investigation in the Pieniny Mountain (south of Poland) were carried out since the 1960s. They contained levelling, gravimetric measurements and distance observations in horizontal network. The results reveled vertical and horizontal movements of the crust and periodic changes in gravity. In 1994-1995 horizontal network was adapted to perform GPS observations and they were carried out with leveling, gravimetric and EDM observations. In 1990s, the Dunajec river dam and the water resorvoirs in Czorsztyn and Sromowce Wyżne have been built. This has a new aspect in investigations releted to the effect of tectonic movements on the dam. Taking that into account, the study was revived, after six year break, in 2001. The investigations, which contain GPS, gravimetric and leveling observations, have been carried out every year. In this paper the result of horizontal displacement obtained from GPS measurement as well as gravity changes in 1994-2010 period are presented and yields linear trend in north-east direction less than 1 mm/year.
    Źródło:
    Reports on Geodesy; 2011, z. 2/91; 29-36
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geodetic and geodynamic studies at Department of Geodesy and Geodetic Astronomy WUT
    Autorzy:
    Brzeziński, A.
    Barlik, M.
    Andrasik, E.
    Izdebski, W.
    Kruczyk, M.
    Liwosz, T.
    Olszak, T.
    Pachuta, A.
    Pieniak, M.
    Próchniewicz, D.
    Rajner, M.
    Szpunar, R.
    Tercjak, M.
    Walo, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/106807.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    physical geodesy
    satellite measurement techniques
    GNSS meteorology
    geodynamic studies
    geodezja fizyczna
    technika pomiarów satelitarnych
    meteorologia GNSS
    badania geodynamiczne
    Opis:
    The article presents current issues and research work conducted in the Department of Geodesy and Geodetic Astronomy at the Faculty of Geodesy and Cartography at Warsaw University of Technology. It contains the most important directions of research in the fields of physical geodesy, satellite measurement techniques, GNSS meteorology, geodynamic studies, electronic measurement techniques and terrain information systems.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2016, 100; 165-200
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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