1请教一下地理北极geographic north pole地磁北极geomagnetic north pole磁北极magnetic north pole的区别其实看到这样一句话“地磁北极在地理南极附近,地磁南极在地理北极附近”,但是我现在看到一个叫做磁北极magnetic north pole的概念,和地磁北极geomagnetic north pole的概念不一样。请您看这个图,这个图明显表明地理北极和...
地理北极：是指北极点，是指地球自转轴穿过地心与地球表面相交，并指向北极星附近的交点。地磁北极：地球是一个具有磁场强度不均匀变化的球体，19世纪20年代，德国著名数学家高斯(K. F. Gauss)发表了关于地球磁场的理论，将地球视为一个具有均匀磁场强度的球体而用数学推导出的磁极，称为地球的地磁南北极...
aspecifically monitored by the MHRA. 由MHRA具体地监测。[translate] a我们需要有 We need to have[translate] a地磁北极向东偏则磁偏角为正,向西偏则磁偏角为负。 East magnetic north polarity then the magnetic declination is positive, to west then the magnetic declination is negative.[translate]...
Lilley, F.E. M., 1970. Geomagnetic reversals and the position of the north magnetic pole, Nature, 227,1336.F.E.M. Lilley, Geomagnetic Reversals and the Position of the North Magnetic Pole, Nature, Vol. 227 (1970) 1336-1337Lilley, 1;. E. M . , 1970. Geomagnetic reversals and the ...
地磁北极和地理北极之间的夹角角度成为磁偏角。 The daily map instructs is the geography North Pole, but the compass instructs is earth magnetism North Pole.Between earth magnetism North Pole and the geography North Pole's included angle angle becomes the magnetic declination.[translate]...
λ is the latitude from the magnetic equator, ϵ is the angle from the zenith direction (where the zenith direction is a radial from the position of the dipole center), ξ is the azimuthal angle measured clockwise from the direction to the north magnetic pole and r is the distance from ...
[4]CAI Li, WANG Zong-ping, ZHANG Zhou-shu, LU Hai-yan, YANG Zhen-yu, ZHEN Hong-wei.ANALYSIS OF EARTHQUAKE PRECURSOR OBSERVATION INSTRUMENT CALIBRATION AND SELF-CALIBRATION[J]. North China Earthquake Sciences, 2012, 30(2): 28-32.
AN Hanchinal,PBVS Rao,N Nagarajan,DRK Rao,BP Singh 摘要: Magnetovariational studies have been carried out in Singhbhum and surrounding regions during 1987 and 1989. Three deep-seated linear conductors have been identified. One of them is located to the north of Ranchi, Bokaro and Purulia ...
(2) archaeointensities of the global database Geomagia50.v327from the North-West of Africa, (3) archaeomagnetic data that are currently not in the Geomagia database from Casaset al.45and (4) volcanic data from the Canary islands from Sherwood66, Valetet al.67, de Grootet al.68, ...
F. Direct north-south synchronization of abrupt climate change record in ice cores using Beryllium 10. Clim. Past 3, 541–547, doi: 10.5194/cp-3-541-2007 (2007). 48. Legrand, M. Chemistry of Antarctic snow and ice. J. Phys. Colloques 48, C1-77-C1-86, doi: 10.1051/jphyscol:...