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The quality examination of observative data at Geomagnetic observatories
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作者 程安龙 周锦屏 +3 位作者 高玉芬 赵学敏 赵永芬 黄蔚北 《Earthquake Science》 CSCD 1994年第S1期71-79,共9页
The basic task of geomagnetic observatory is .to produce accurate, relaible,continuous and complete observative data. The aim of examination is to judge the quality status of data. According to the operative principle... The basic task of geomagnetic observatory is .to produce accurate, relaible,continuous and complete observative data. The aim of examination is to judge the quality status of data. According to the operative principle of geomagnetic instruments and its operative status that should be achieved, geomagnetic activity and spread characteristics in time domain and location domain, authers proposed a complete set of data quality examination. The paper discusses respectively physical basement, examination method and the result about scalevalues, base-line values, monthly mean values, daily mean values, maximum and minimum values in daily range, magnetic storm and K index. The practice has proved that this set of examination is feasible and useful to raise and to guarantee the quality of observative data. 展开更多
关键词 geomagnetic observation geomagnetic data data quality quality examination
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The Beijing network of digital geomagnetic pulsation observatories
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作者 周军成 韩克礼 鲁跃 《Acta Seismologica Sinica(English Edition)》 CSCD 1994年第3期489-494,共6页
We present herein an introduction to the Beijing network of digital geomagnetic pulsation observatories, and describe its essential features, and important roles in earthquake prediction studies and other geomagnetic ... We present herein an introduction to the Beijing network of digital geomagnetic pulsation observatories, and describe its essential features, and important roles in earthquake prediction studies and other geomagnetic investigations. The network provides digitalized data of geomagnetic events, such as magnetic storms, magnetic disturbances, geomagnetic daily variations, and geomagnetic pulsations. The digitalized data, convenient for processing and analysis, contain very rich information because of high accuracy and wide dynamic range of the instruments. 展开更多
关键词 geomagnetic pulsation observation floating amplifier digitize short-term anomaly
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