A REVISED CORRECTED GEOMAGNETIC COORDINATE SYSTEM FOR EPOCHS 1985 AND 1990
A REVISED CORRECTED GEOMAGNETIC COORDINATE SYSTEM FOR EPOCHS 1985 AND 1990
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DOI：
10.1016/0021-9169(92)90167-j
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发表时间：
1992-11-01
期刊：
影响因子：
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通讯作者：
PAPITASHVILI, VO
中科院分区：
文献类型：
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作者：
GUSTAFSSON, G;PAPITASHVILI, NE;PAPITASHVILI, VO
本文根据1985年地磁场模型DGRF和1990年地磁场模型IGRF计算了一组新的校正地磁坐标（CGM）。本文提出了一种确定磁倾角的新方法，它是根据每条地磁场线上的B极小值点（顶点）在地球表面的垂直（沿着Re）投影。在“倾斜”磁赤道线上定义了一条沿着的带状区域，在此区域用CGM的定义无法得到校正的地磁坐标。在两个半球的最后两个可定义的CGM纬度的位置之间的线性插值已被用来计算在赤道地区的CGM纬度。最后定义的CGM纬度和'浸'赤道在两个半球的位置之间的插值已被用来计算CGM纬度在该地区。本文提出并分析了在赤道地区用恒定B-min地磁坐标系（CBM）代替CGM。
A new set of corrected geomagnetic coordinates (CGM) has been calculated from the magnetic field model DGRF for Epoch 1985 and the IGRF model for Epoch 1990. A new approach to determine the 'dip' magnetic equator has been developed, which is based on the vertical (along Re) projection on the Earth's surface of the B-minimum value point (apex) on each geomagnetic field line. A strip along the 'dip' magnetic equator line has been defined where the corrected geomagnetic coordinates could not be found by the definition of CGM. Linear interpolation between the locations of the two last definable CGM latitudes in both hemispheres has been used to calculate the CGM longitudes in the equatorial region. Interpolation between locations of the last definable CGM latitude and 'dip' equator in both hemispheres has been used to calculate the CGM latitudes in this region. The constant B-min geomagnetic coordinate system (CBM) is proposed and analysed to replace CGM in the equatorial region.