/[escript]/trunk/doc/inversion/DataSources.tex
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revision 4286 by caltinay, Wed Mar 6 05:10:44 2013 UTC revision 4287 by caltinay, Thu Mar 7 05:26:44 2013 UTC
# Line 137  the domain will fail once \member{getDom Line 137  the domain will fail once \member{getDom
137  \end{methoddesc}  \end{methoddesc}
138    
139  \begin{methoddesc}[DomainBuilder]{setBackgroundMagneticFluxDensity}{B}  \begin{methoddesc}[DomainBuilder]{setBackgroundMagneticFluxDensity}{B}
140  sets the background magnetic flux density $B=(B_r,B_\theta,B_\phi)$ which is  sets the background magnetic flux density $B=(B_{North},B_{East},B_{Vertical})$
141  required for magnetic inversions.  which is required for magnetic inversions.
142  A implementation of the dipole approximation as described in  $B_{East}$ is ignored for 2-dimensional magnetic inversions.
 Equation~\ref{ref:MAG:EQU:5} is provided through the function  
 \member{simpleGeoMagneticFluxDensity} (see Section~\ref{sec:ref:DataSource}).  
 $B_\theta$ is ignored for 2-dimensional magnetic inversions.  
143  \end{methoddesc}  \end{methoddesc}
144    
145  \begin{methoddesc}[DomainBuilder]{getBackgroundMagneticFluxDensity}{}  \begin{methoddesc}[DomainBuilder]{getBackgroundMagneticFluxDensity}{}
# Line 224  don't support it. Line 221  don't support it.
221  \vspace{1em}\noindent The \module{esys.downunder.datasources} module contains the following helper  \vspace{1em}\noindent The \module{esys.downunder.datasources} module contains the following helper
222  functions:  functions:
223    
 \begin{funcdesc}{simpleGeoMagneticFluxDensity}{latitude%  
 \optional{, longitude=0.}}  
 returns an approximation of the geomagnetic flux density $B$ as described in  
 Equation~\ref{ref:MAG:EQU:5} for the given \member{latitude}.  
 The \member{longitude} parameter is currently ignored and the return value is  
 the tuple $(B_r, B_{\theta}, 0)$.  
 \end{funcdesc}  
   
224  \begin{funcdesc}{LatLonToUTM}{longitude, latitude%  \begin{funcdesc}{LatLonToUTM}{longitude, latitude%
225  \optional{, wkt_string=\None}}  \optional{, wkt_string=\None}}
226  converts one or more (longitude,latitude) pairs to the corresponding (x,y)  converts one or more (longitude,latitude) pairs to the corresponding (x,y)

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