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Hi Heidi,<br>
Yes, I also "stumbled across it" during some google researches
yesterday.<br>
It's a good read, and thanks for making the extra effort to tell me
about it.<br>
Kind r<br>
egards,<br>
Zoltan<br>
<br>
<div class="moz-cite-prefix">On 2017/12/14 15:13, Heidi Van Deventer
wrote:<br>
</div>
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cite="mid:5A32790E020000D20012B3D7@pta-imo.csir.co.za">
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<div class="GroupWiseMessageBody"
id="GroupWiseSection_1513257154000_HvDeventer@csir.co.za_866D0300043C0000A636680E0C43D79B_">
<div>Coincidently I stumbled upon this article after you sent
this communication earlier this week:</div>
<div><br>
</div>
<div>Waywell T 2009 The effect of various map projections on
surface area. PositionIT July: 49 - 55</div>
<div><br>
</div>
<div><a
href="https://www.ee.co.za/wp-content/uploads/legacy/PositionIT%202009/VisT-The-effect-of-various.pdf"
moz-do-not-send="true">https://www.ee.co.za/wp-content/uploads/legacy/PositionIT%202009/VisT-The-effect-of-various.pdf</a></div>
<div><br>
</div>
<div>Kind regards,</div>
<div>Heidi<br>
</div>
<div class="GroupWiseMessageBody"
id="GroupWiseSection_1513257153000_HvDeventer@csir.co.za_866D0300043C0000A636680E0C43D79B_"><span
class="GroupwiseReplyHeader">>>> Zoltan
<a class="moz-txt-link-rfc2396E" href="mailto:zoltans@geograph.co.za"><zoltans@geograph.co.za></a> 12/12/2017 16:35 >>><br>
</span>
<div><span style="background-color: rgb(255, 255, 255);"
bgcolor="#FFFFFF" text="#000000">> Hi Heidi,
<div><br>
</div>
<div> Thanks for the confirmation.</div>
<div> </div>
<div> Regards,</div>
<div> Zoltan</div>
<div> </div>
<div class="moz-cite-prefix">On 2017/12/12 15:57, Heidi
Van Deventer wrote:<br>
</div>
<blockquote
cite="mid:5A2FE03F020000D20012B040@pta-imo.csir.co.za"
type="cite">
<meta name="Generator" content="Novell Groupwise Client
(Version 14.2.2 Build: 126868)">
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id="GroupWiseSection_1513085720000_HvDeventer@csir.co.za_866D0300043C0000A636680E0C43D79B_">
<div>Hi Zoltan</div>
<div><br>
</div>
<div>we use the Albers Equal Area conical projection
for South Africa with the central meridian at 25°E,
parallels 24°S and 33° S, spheroid and datum = WGS84
for calculating the extent of ecosystems at a
national scale in the National Biodiversity
Assessment for 2018.</div>
<div><br>
</div>
<div>Kind regards,</div>
<div>Heidi<br>
</div>
<div><span class="GroupwiseReplyHeader">>>>
Zoltan <a class="moz-txt-link-rfc2396E"
href="mailto:zoltans@geograph.co.za"
moz-do-not-send="true"><zoltans@geograph.co.za></a>
12/12/2017 14:39 >>><br>
</span>
<div><span style="background-color: rgb(255, 255,
255);" bgcolor="#FFFFFF" text="#000000">> Hi
Africa-listers,
<div><br>
</div>
<div> I want to set an informal assignment for
my candidates, to help them recognise common
CRSes used in South Africa (South, not
Southern).</div>
<div> </div>
<div> Off the top of my head I can think of:</div>
<ul>
<li>Non projected Lat Long</li>
<li>Lo system (North and/or South facing)
projected from either Clarke 1880 [if very
old] or WGS84</li>
<li>UTM33-36S</li>
</ul>
Are there any others<u> in common</u> use?
<div><br>
</div>
<div> If so, by whom?</div>
<div> </div>
<div> Thanks and keep well,</div>
<div> Zoltan</div>
<div> </div>
--
<pre class="moz-signature" cols="72">=============================================
Zoltan Szecsei GPrGISc 0031
Geograph (Pty) Ltd.
GIS and Photogrammetric Services
P.O. Box 7, Muizenberg 7950, South Africa.
Mobile: +27-83-6004028
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=============================================</pre>
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<pre class="moz-signature" cols="72">--
=============================================
Zoltan Szecsei GPrGISc 0031
Geograph (Pty) Ltd.
GIS and Photogrammetric Services
P.O. Box 7, Muizenberg 7950, South Africa.
Mobile: +27-83-6004028
Fax: +27-86-6115323 <a class="moz-txt-link-abbreviated" href="http://pta-smg2.csir.co.za:32224/?dmVyPTEuMDAxJiZkYWFjMWZiY2EyM2E4ZGZkOD01QTJGRTkxQ18yMDA3OV8xMjI5OF8xJiY0MmVmNzhhZWYxODczNTY9MTMzMyYmdXJsPWh0dHAlM0ElMkYlMkZ3d3clMkVnZW9ncmFwaCUyRWNvJTJFemE=" moz-do-not-send="true">www.geograph.co.za</a>
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<br>
<pre class="moz-signature" cols="72">--
=============================================
Zoltan Szecsei GPrGISc 0031
Geograph (Pty) Ltd.
GIS and Photogrammetric Services
P.O. Box 7, Muizenberg 7950, South Africa.
Mobile: +27-83-6004028
Fax: +27-86-6115323 <a class="moz-txt-link-abbreviated" href="http://www.geograph.co.za">www.geograph.co.za</a>
=============================================</pre>
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