The transformation of the magnetization direction and the magnetic fi eld component is one of the important methods in magnetic data processing and transformation,which can be conducted in both wavenumber and spatial ...The transformation of the magnetization direction and the magnetic fi eld component is one of the important methods in magnetic data processing and transformation,which can be conducted in both wavenumber and spatial domains.The transformation method in the wavenumber domain has simpler processing expression and higher processing effi ciency than in the spatial domain;however,they are unstable at low latitude.In this paper,the conclusion that the sum is 0 of two vertical magnetic fi eld components(magnetization inclinations are also perpendicular)in 2D is used for the 3D transformation of the magnetization direction and the magnetic field component.In addition,the transformation method at low latitudes based on vertical relationship(VMT)is proposed,which is an iterative algorithm that converts the transformation of the magnetization direction and the magnetic field component at the low latitude into the high latitude.This method restrains the instability of transformation of constant and variable magnetization direction and magnetic fi eld components in low latitudes.The accuracy,stability,and practicality are verifi ed from synthetic models and real data.展开更多
The results of atmospheric effect characterization on the town of Ouagadougou in Burkina Faso are presented and the link with the availability of the direct component of solar radiation is discussed.Experimental meteo...The results of atmospheric effect characterization on the town of Ouagadougou in Burkina Faso are presented and the link with the availability of the direct component of solar radiation is discussed.Experimental meteorological data are treated to set a system of constant references which are used to extrapolate the likely atmospheric effect given by the other experimental meteorological data from 1976 to 2006.As results the periods of strong monthly attenuation of the solar potential are pointed out.展开更多
基金supported by the subject “Study on the Comprehensive Processing and Interpretation Method and Software Development for Aerial Geophysics (No. 2017YFC0602202)” from National major Research and Development Project of China (No. 2017YFC0602200)。
文摘The transformation of the magnetization direction and the magnetic fi eld component is one of the important methods in magnetic data processing and transformation,which can be conducted in both wavenumber and spatial domains.The transformation method in the wavenumber domain has simpler processing expression and higher processing effi ciency than in the spatial domain;however,they are unstable at low latitude.In this paper,the conclusion that the sum is 0 of two vertical magnetic fi eld components(magnetization inclinations are also perpendicular)in 2D is used for the 3D transformation of the magnetization direction and the magnetic field component.In addition,the transformation method at low latitudes based on vertical relationship(VMT)is proposed,which is an iterative algorithm that converts the transformation of the magnetization direction and the magnetic field component at the low latitude into the high latitude.This method restrains the instability of transformation of constant and variable magnetization direction and magnetic fi eld components in low latitudes.The accuracy,stability,and practicality are verifi ed from synthetic models and real data.
文摘The results of atmospheric effect characterization on the town of Ouagadougou in Burkina Faso are presented and the link with the availability of the direct component of solar radiation is discussed.Experimental meteorological data are treated to set a system of constant references which are used to extrapolate the likely atmospheric effect given by the other experimental meteorological data from 1976 to 2006.As results the periods of strong monthly attenuation of the solar potential are pointed out.
