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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">Hi Artur.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">It could be the same thing. “Geodetic” latitude is the same as ordinary,
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">everyday latitude. There are some other flavours of latitude as well,
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">auxiliary latitudes that are mainly used to simplify some kinds of
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">computations, but “geodetic” is the ordinary kind.
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">For longitudes, there is only one flavour, but the zero meridian is
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">not always
<st1:City w:st="on"><st1:place w:st="on">Greenwich</st1:place></st1:City>. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">So the coordinates you mention could be in WGS84 Lat/Long already.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">But it is not certain, since they could be expressed in some other
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">geodetic datum that uses a different ellipsoid.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">Do you have any documentation about the geodetic datum of your<br>
coordinates (like Pulkovo 1942, Pulkovo 1995, PZ 1990, or WGS84), <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">or about the ellipsoid used?
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy">Best regards,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">Mikael Rittri<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">Carmenta<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">Sweden<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">http://www.carmenta.com<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma;font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span lang="EN-US" style="font-size:10.0pt;font-family:Tahoma"> proj-bounces@lists.maptools.org
[mailto:proj-bounces@lists.maptools.org] <b><span style="font-weight:bold">On Behalf Of
</span></b>Artur Bercik<br>
<b><span style="font-weight:bold">Sent:</span></b> Friday, October 24, 2014 8:27 AM<br>
<b><span style="font-weight:bold">To:</span></b> <st1:PersonName w:st="on">proj@lists.maptools.org</st1:PersonName><br>
<b><span style="font-weight:bold">Subject:</span></b> [Proj] (no subject)</span></font><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt">Dear Proj list members:<br>
<br>
Being a very new in this field, could someone answer me about the following problem:<br>
<br>
I have a pair of Geodetic Latitude and Geodetic Longitude (50.89524, 117.69043).<br>
How can I convert it into Latitude and Longitude with WGS84 Ellepsoid?<br>
<br>
Thanks in the advance.<br>
<br>
Artur<o:p></o:p></span></font></p>
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