[cig-commits] [commit] devel: added a remark about ellipticity to the users manual. (9a28612)

[cig_noreply at geodynamics.org]

Repository : https://github.com/geodynamics/specfem3d_globe

On branch  : devel
Link       : https://github.com/geodynamics/specfem3d_globe/compare/754300e5a26e2a5d17069e661645fe819a7857a1...cd83b686a7c6014e132933f685157d43151a665e

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commit 9a286125b8c2fe555242cdb7fd184256f2fe5608
Author: Dimitri Komatitsch <komatitsch at lma.cnrs-mrs.fr>
Date:   Fri May 2 15:29:37 2014 +0200

    added a remark about ellipticity to the users manual.


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9a286125b8c2fe555242cdb7fd184256f2fe5608
 doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.pdf | Bin 24343297 -> 24343368 bytes
 doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.tex |   1 +
 2 files changed, 1 insertion(+)

diff --git a/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.pdf b/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.pdf
index ee9e3ce..44a6618 100644
Binary files a/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.pdf and b/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.pdf differ
diff --git a/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.tex b/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.tex
index 72af062..56c4628 100644
--- a/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.tex
+++ b/doc/USER_MANUAL/manual_SPECFEM3D_GLOBE.tex
@@ -780,6 +780,7 @@ is on.
 \item [{\texttt{ELLIPTICITY}}] Set to \texttt{.true.} if the mesh should
 make the Earth model elliptical in shape according to Clairaut's equation
 \citep{DaTr98}. This feature adds no cost to the simulation.
+After adding ellipticity, the mesh becomes elliptical and thus geocentric and geodetic/geographic latitudes and colatitudes differ (longitudes are unchanged).
 %
 From \cite{DaTr98}: "Spherically-symmetric Earth models all have the same hydrostatic surface ellipticity 1/299.8. This is 0.5 percent smaller than observed flattening of best-fitting ellipsoid 1/298.3. The discrepancy is referred to as the "excess equatorial bulge of the Earth", an early discovery of artificial satellite geodesy."
 %