崔荣花, 方剑, 王新胜. 2009-07-22湖北地区日全食期间的重力观测[J]. 武汉大学学报 ( 信息科学版), 2011, 36(11): 1332-1335.
引用本文: 崔荣花, 方剑, 王新胜. 2009-07-22湖北地区日全食期间的重力观测[J]. 武汉大学学报 ( 信息科学版), 2011, 36(11): 1332-1335.
CUI Ronghua, FANG Jian, WANG Xinsheng. Gravity Observations During 22 July 2009 Total Solar Eclipse in Hubei Province[J]. Geomatics and Information Science of Wuhan University, 2011, 36(11): 1332-1335.
Citation: CUI Ronghua, FANG Jian, WANG Xinsheng. Gravity Observations During 22 July 2009 Total Solar Eclipse in Hubei Province[J]. Geomatics and Information Science of Wuhan University, 2011, 36(11): 1332-1335.

2009-07-22湖北地区日全食期间的重力观测

Gravity Observations During 22 July 2009 Total Solar Eclipse in Hubei Province

  • 摘要: 利用武汉市九峰站CWR C032型超导重力仪和沙洋地区的Lacost G型、ET型弹簧重力仪,对2009-07-22发生在长江沿线的日全食进行了重力观测。首先,对超导重力仪在日全食期间的观测数据扣除重力固体潮汐及气压影响后,分析其幅度变化,没有发现日全食期间及前后出现幅度异常的“重力谷”。同时,对G型和ET型重力仪观测数据采用数字滤波器法及多项式拟合重力潮汐法扣除固体潮汐影响后,同样也没有发现日全食期间及前后出现幅度较大的异常。重力实测数据处理和分析表明,2009年日全食期间并未发现“重力谷”现象。

     

    Abstract: Gravity observations have been made using superconducting gravimeter of Jiufeng observation station and LCR-G and LCR-ET gravimeters of Shayang County,during total solar eclipse,which took place along Yangzi River on July 22,2009.We firstly analyzed the amplitude change of gravity residues,which deducted influences of solid Earth tide and pressure.No "gravity anomaly valleys" of abnormal amplitude were observed from the gravity residuals.The gravity residues of LCR-G same with that of LCR-ET gravimeters,whose solid earth tide influences were deducted by methods of digital filter and polynomial fitting.The processing of observed gravity data and analysis proved that no gravity anomaly valleys were found during the total solar eclipse of 2009.

     

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