A Tidal Correction Method from a Short-time Series of Gravity Observations
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摘要: 对于没有长期连续潮汐观测站和无精密潮汐模型的地区,研究高精度潮汐改正方法具有重要意义。给出了基于短时间序列重力观测数据的高精度潮汐改正方法,并利用全球动力学计划中TIGOConcepcion、Kamio-ka和Hsinchu三个台站的超导重力观测数据对该方法进行了试验分析。研究结果表明,利用一天或数天重力观测数据可建立高精度潮汐模型,其振幅因子和相位延迟解算精度分别优于0.01和0.5°,潮汐改正精度可以达到μGal量级,验证了该方法的正确性和有效性。本文方法为无精密潮汐模型区域的潮汐改正提供了新的途径。Abstract: Areas without standing and continuous tidal data or a precise tidal model require a precise tidal correction method. High-accuracy tidal correction methods using short-time series of gravity observations are proposed to address this problem.The superconducting gravity observations of TIGO Concepcion，Kamioka，and Hsinchu stations in Global Geodynamics Project were used in experimental analysis.The results show that:a high-accuracy tidal model can be established by gravity observations over one or several days;the accuracies of factor amplitude and phase delay are better than 0.O1 and 0.5 degrees;the accuracy of tidal correction can reach micro gal level，demonstrating the effectiveness of the method.This new approach is suitable for areas without precise tidal models.
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Keywords:
- tide /
- gravity observations /
- tidal correction /
- short-time series
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期刊类型引用(3)
1. 刘站科，李建成，肖学年，张庆涛，宛家宽，李国鹏. GT-2A航空重力仪静态测量实验及性能分析. 武汉大学学报(信息科学版). 2019(04): 482-488 . 
百度学术
2. 邓洪涛，赵珞成，罗志才. 中国海域岛礁重力测量及潮汐改正. 测绘地理信息. 2018(01): 15-19 . 百度学术
3. 韩宇飞，张锐，李建勇，李经纬. 利用TCMSSGO方法拟合长时间中断重力数据. 地理空间信息. 2015(05): 94-96+10 . 百度学术
其他类型引用(2)
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