| Autor: |
Hiroshi Ikeda, Yuichi Imanishi, Yoshiaki Tamura, Kazunari Nawa, Makoto Okubo, Takashi Okuda, Ryo Honda |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
International Symposium on Advancing Geodesy in a Changing World ISBN: 9783030129149 |
| Popis: |
A variant of hybrid gravimetry using both a superconducting gravimeter and Scintrex gravimeters is proposed. One of the main factors limiting the accuracy of time lapse gravity measurements is the instrumental drift of spring-type gravimeters. Running the Scintrex CG-5 gravimeter in the nighttime on the same pier as the superconducting gravimeter allows us to model the long-term behavior of the former and to remove efficiently the effect of irregular drift on measured gravity. Initial tests performed at Ishigakijima, Japan, proved that accuracy of a few μGal level can be achieved with this method. This will help us precisely correct for the effect of underground water on superconducting gravimeters with 2-dimensional local gravity survey. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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