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Liritzis Ioannis et:AURORAE ΑND ARCHAEOMAGNETISM FROM THE 1st MILLENNIUM B.C. CHINA, GREECE AND ITALY:A BRIEF OVERVIEW AND CRITICAL ASSESSMENT

作者:   时间:2018-06-13   来源:   浏览数:

Auroral reports from ancient Chinese records and from Greece and Italy, from historical sources (Bamboo Annals, Tai ping yu lan,Ch'unch'iueriod and Aristotle, Anaxagoras, Seneca, Pliny, Livy, respectively) in the 1stmillennium B.C., are discussed in relation to the geomagnetic pole (GP) coordinates through archaeomagnetic inclination and declination data. It is shown that the expected auroral oval with its extension to a maximum of radius 30oaround the GP occasionally reaches the Chinese / Southern Mediterranean mid latitudes and eastern longitudes: for China 35ο-40ο and 95ο-125ο respectively, and for Greece/Central Italy, 35ο-40ο and 10ο-25ο respectively; two distant regions where two great cultures flourished. Of the nine Chinese records those of 1000-900 B.C., 687 B.C., 193 B.C., 139 B.C., 32 B.C., 30 B.C. and 15 B.C. records are justified by a mid latitude geomagnetic pole which gives certain mid latitude aurorae. For the 166 B.C. and 154 B.C.available archaeomagnetic data the position of the VGP does not justify observation of aurorae. Archaeomagnetic data for Chinese accounts derived from South Korea, Japan and England reduced to mid China location are also used to determine GP at a reduced site of common latitude in China, but due attention and discussion of non-dipole magnetic sources and their calculated drift rates is made, to explain the unattainable observation of aurorae at central Chinese latitudes. Similarly, in southern Eastern Mediterranean area (Greece, Italy) 33 data are used and most are commensurable with the inclined GP towards mid latitudes,included within the auroral oval or at its southern maximum extension taking into account associated errors.Highly acceptable aurorae accounts and problematic ones are explained in terms of smooth or rapid, respectively,changes in the magnetic inclination and declination positions, reinforced by large age errors. Virtual Geomagnetic poles (VGP) for examined regions are ranging between 51o to 71o for latitude and between 1o to 123o for longitude for auroral observation dates of the 1st millennium B.C. to 1st century A.D.

作者:Liritzis Ioannis, Panou Evangelia, Changhong Miao, Fengxian Xu,Cai Shuhui

原文刊于Mediterranean Archaeology and Archaeometry, Vol. 17, No 3, (2017), pp. 273-300


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