Calibration of the superconducting gravimeter TT70 #016 at Syowa Station by parallel observation with the absolute gravimeter FG5 #203

• Iwano Sachiko

  Department of Geophysics, Graduate School of Science, Kyoto University

• Kimura Isao

  Geographical Survey Institute

• Fukuda Yoichi

  Department of Geophysics, Graduate School of Science, Kyoto University

Abstract

For the purpose ofcalibration ofthe superconducting gravimeter model TT70 #016 at Syowa Station,Antarctica,we carried out parallel observations with the absolute gravimeter FG5 #203 from December 29, 2000 to January 25, 2001. During the FG5 measurements,the laser stability was sometimes not good and this caused irregular data.We carefully examined the relation between laser stability and gravity values,and took it into account for the removal of abnormal data.We applied linear regression to the selected SG and FG /data set,and obtained the value of -58.168 μGal/V to an accuracy of 0.10% for the scale factor of TT 70 #016.The difference of the obtained scale factor from the previous value of -57.965 μGal/V is about 0.35%.

Journal

• Polar geoscience

  Polar geoscience 16 22-28, 2003-10

  National Institute of Polar Research

Keywords

• superconducting gravimeter,scale factor,calibration,FG5, laser stability

Details

• CRID: 1573105976580001152
• NII Article ID: 80016339435
• NII Book ID: AA1130866X
• ISSN: 13443194
• Text Lang: en
• Data Source:
  • CiNii Articles