利用国产绝对重力仪进行南极中山站重力校准  

Gravity Calibration at the Zhongshan Station in Antarctica by using a Domestic Absolute Gravimeter

作　　者：粟多武[1] 王启宇 张川[2] 袁园 刘士栋[2] 李春剑[1] 吉望西[1] SU Duowu;WANG Qiyu;ZHANG Chuan;YUAN Yuan;LIU Shidong;LI Chunjian;JI Wangxi(National Institute of Metrology,Beijing 100029,China;National Center of Ocean Standards and Metrology,Tianjin 300112,China;Second Institute of Oceanography,MNR,Hangzhou 310012,China)

机构地区：[1]中国计量科学研究院,北京100029 [2]国家海洋标准计量中心,天津300112 [3]自然资源部第二海洋研究所,杭州310012

出　　处：《计量科学与技术》2021年第8期36-41,共6页Metrology Science and Technology

基　　金：国家重点研发计划课题资助项目(2018YFF0212604);科技部国家计量基标准资源共享平台项目(29-APT2001-3)。

摘　　要：2019-2020年南极夏季期间,中国第36次南极科学考察队利用中国计量科学研究院自主研发的国产NIM-3C型绝对重力仪在南极中山站进行了绝对重力测量,给极区海洋重力提供了计量校准点,并进行了30天以上的连续观测研究。该计量校准点的绝对重力校准值的标准不确定度优于3×10^(-7)m·s^(-2),填补了我国目前极区海洋重力量值无法溯源到国家计量基准的空白,建立了自主可控的可溯源至国际单位制的极区海洋重力溯源体系。During the Antarctic summer from 2019 to 2020,the 36 th Chinese scientific expedition to Antarctica made absolute gravimetric measurements at the Zhongshan Station using a domestic absolute gravimeter,NIM-3 C,independently developed by the National Institute of Metrology,China.The measurements provide a calibration point for the polar ocean gravity.Besides,continuous observation and research were conducted for more than 30 days.The standard uncertainty of the calibrated value of the absolute gravity at the measurement point is better than 3 × 10^(-7) m·s^(-2).The measurements have made China’s polar ocean gravity value traceable to the national measurement datum,which is traceable to the International System of Units.

关 键 词：南极 中山站 绝对重力测量 绝对重力仪 重力校准 

分 类 号：P223.1[天文地球—大地测量学与测量工程]