Preliminary studies on unusual magnetic diurnal variation on hengchun peninsula

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Title:	Preliminary studies on unusual magnetic diurnal variation on hengchun peninsula
Authors:	顏宏元;Chen, Chun-Rong;Yen, Horng-Yuan;Chen, Chieh-Hung;Lee, Ying-Yuan;Lo, Yu-Tsung;Shin, Tzay-Chyn
Contributors:	地球科學學院地球科學學系
Keywords:	Coast effect;Coastal effects;Diurnal variation;Diurnal variations;Earth;Geomagnetic;Geomagnetic field;Geomagnetism;Magnetometers;Proton magnetometers;Seawater;Stations;Variation
Date:	2016-01-01
Issue Date:	2026-04-23 11:41:08 (UTC+8)
Publisher:	Chinese Geoscience Union;Taiwan: 中華民國地球科學學會
Abstract:	摘要： The geomagnetic total intensity data recorded by a geomagnetic network in Taiwan comprised of 11 permanent proton magnetometers was used to compute diurnal variation ranges to examine if any discrepancies were present. Diurnal variations with similar ranges were obtained from all stations except for the HC station. The ranges at the HC station are often two times greater than those recorded at the other stations. This is an interesting phenomenon that requires considerable attention. Eight temporary stations were set up between the Taitung (TT) and Hengchun (HC) stations, distributed evenly over the Hengchum peninsula during 13 September 2012 to 25 January 2013 to clarify the phenomenon. The local stations in Taiwan are compared with 2 international stations to explain the diurnal ranges resulting from the interaction between solar activities and the Earth’s main geomagnetic field and/or local effects. Analytical results show that the unusually large diurnal ranges were observed mainly on the Hengchun peninsula. The surrounding the sea water produces the magnetic coast effect. 出版者： Taiwan: 中華民國地球科學學會出版日期： 2016-02-01 出處： TAO : Terrestrial, atmospheric, and oceanic sciences, 2016-02, Vol.27 (1), p.21-28 資源來源： Chinese Electronic Periodical Services (CEPS) 版權： 2016. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： ISSN: 1017-0839 識別號： ISSN: 2223-8964 識別號： ISSN: 2311-7680 識別號： EISSN: 2311-7680 識別號： EISSN: 1017-0839 識別號： DOI: 10.3319/TAO.2015.06.04.01(T)
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