陆态网淮北连续重力潮汐观测质量评定
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摘要
通过重力数据处理软件对观测数据进行预处理,利用一般评价、Nakai拟合检验和Venidikov调和分析等方法对淮北gPhone型连续重力观测质量综合评定,分析观测系统主要故障事件、台风等干扰对重力观测数据的影响。结果表明:自2014年起,淮北连续重力观测系统进入运行稳定期,数据观测精度较高,M2波潮汐因子相对中误差在1‰之内,各项主要指标达到国家重力台网中心的观测要求。
The observed data are pre-processed by gravity data processing software. The quality of g Phone type continuous gravity observation in Huaibei is evaluated by general evaluation,Nakai fitting test and Venidikov harmonic analysis. The influence of main fault events and typhoon disturbance on gravity observation data is analyzed. The results show that since 2014,Huaibei continuous gravity observation system has entered a stable period of operation,and the data observation accuracy is high. The relative median error of M2 wave tide factor is within 1‰ and the main indexes meet the observation requirements of national gravity network center.
The observed data are pre-processed by gravity data processing software. The quality of g Phone type continuous gravity observation in Huaibei is evaluated by general evaluation,Nakai fitting test and Venidikov harmonic analysis. The influence of main fault events and typhoon disturbance on gravity observation data is analyzed. The results show that since 2014,Huaibei continuous gravity observation system has entered a stable period of operation,and the data observation accuracy is high. The relative median error of M2 wave tide factor is within 1‰ and the main indexes meet the observation requirements of national gravity network center.
引文
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(1)中国地震局监测预报司.关于修订印发电磁、地下流体、地壳形变学科观测资料质量评比办法的通知. 2015.
[2]李国斌,赵卫明.固原体应变观测资料综合分析[J].内陆地震,2011,25(1):78-84.
[3]中国地震局监测预报司.地形变测量(试用本)[M].北京:地震出版社,2008.
[4]吴庆鹏.重力学与固体潮[M].北京:地震出版社,1997.
[5]孟晓春.地震信息分析技术[M].北京:地震出版社,2005,132-179.
[6]王梅,毛玉华,孔向阳,等.数字化体应变观测资料的调和分析[J].地震研究,2005,28(1):24-27.
[7]李星坚,李建康,冯红武,等.高台地震台PET重力潮汐参数观测结果及影响因素的初步分析[J].地震研究,2013,36(1):63-68.
[8]刘建明,杨又陵,高歌.南天山西段数字化形变观测的潮汐参数分析[J].内陆地震,2013,27(1):60-66.
[9]熊仲华.地震观测技术[M].北京:地震出版社,2006,390-439.
[10]徐长银,杨绍富,孙海军,等.库尔勒体应变观测干扰因素的初步分析[J].内陆地震,2013,27(1):86-91.
[11]李杰,卢双苓,殷海涛,等.泰安重力观测高频波动信号分析[J].西北地震学报,2009,31(3):265-271.
[12]王新胜,韩宇飞,徐伟民.震前重力扰动与台风引起的重力扰动主频率特征分析[J].地震,2016,36(4):196-204.
(1)中国地震局监测预报司.关于修订印发电磁、地下流体、地壳形变学科观测资料质量评比办法的通知. 2015.