Absolute Gravity Measurements and Calibration of Tidal Gravimeters at the Geodetic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025615%3A_____%2F03%3A00007485" target="_blank" >RIV/00025615:_____/03:00007485 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Absolute Gravity Measurements and Calibration of Tidal Gravimeters at the Geodetic

Popis výsledku v původním jazyce

The absolute gravimeter FG5 No.215 has been used for repeated absolute gravity measurements since August 2001. Alatogether 38 mostly diurnal measurements were carried out until March 2003. From the time series of results we can infer the periodic changeof gravity with the period of 1 year and the amplitude 2.5 uGal which is probably caused by the changes of ground watermasses around observing site. Heights of the ground water level, přecipitation and soil moisture have been recorded for explanation ofhydrological effects on the gravity. Correlations between the gravity and hydrological parameters were investigated. the repeated absolute measurements were also used for computing the calibration coefficients of the tidal gravimeters Askania No. 228 andLCR No. 137 running at the observatory. From tree-day simultaneus the calibratin coeficients were determined with an accuracy of 0.05% during tidal variations within the range of 240 uGal. A long-term calibration of the tidal gravimeters

Název v anglickém jazyce

Absolute Gravity Measurements and Calibration of Tidal Gravimeters at the Geodetic

Popis výsledku anglicky

The absolute gravimeter FG5 No.215 has been used for repeated absolute gravity measurements since August 2001. Alatogether 38 mostly diurnal measurements were carried out until March 2003. From the time series of results we can infer the periodic changeof gravity with the period of 1 year and the amplitude 2.5 uGal which is probably caused by the changes of ground watermasses around observing site. Heights of the ground water level, přecipitation and soil moisture have been recorded for explanation ofhydrological effects on the gravity. Correlations between the gravity and hydrological parameters were investigated. the repeated absolute measurements were also used for computing the calibration coefficients of the tidal gravimeters Askania No. 228 andLCR No. 137 running at the observatory. From tree-day simultaneus the calibratin coeficients were determined with an accuracy of 0.05% during tidal variations within the range of 240 uGal. A long-term calibration of the tidal gravimeters

Druh

A - Audiovizuální tvorba

CEP obor

DE - Zemský magnetismus, geodesie, geografie

OECD FORD obor

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Projekt

<a href="/cs/project/LN00A005" target="_blank" >LN00A005: Experimentální výzkum dynamiky Země a jejího povrchu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

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Místo vydání

Neuveden

Název nakladatele resp. objednatele

Neuveden

Verze

Workshop

Identifikační číslo nosiče

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