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add links - online edit of handbook/survey/lasers.htm

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handbook/survey/lasers.htm
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@ -14,7 +14,8 @@
It was written in 2001 and last seriously updated in 2006.
These days the Austrians use WGS84 GPS like eveyone else.
<p>For the nitty gritty about coordinate systems in Austria see:<br>
<a href="/eastings">Troggle UTM data report</a><br>
<a href="/stations">Troggle UTM/G&amp;K entrance data report</a><br>
<a href="/entrances">Troggle entrances report</a><br>
<a href="coord2.html">GPS and coordinate systems</a><br>
<a href="coord.htm">Basic Coordinate Systems</a>.<br>
<a href="https://hoehle.org/downloads/SD_10_Handbuch.pdf">SD 10 Handbook: Vergleich der &Ouml;K 50 mit der neuen &Ouml;K 50-UTM</a>.
@ -40,6 +41,7 @@ by changing the <code>+y_0</code> entry.</p>
<h3>Original description - Historical record</h3>
<p>[See Wookey's article on very early GPS shennaninghans too: <a href="/years/1996/gps.htm">GPS For Expedition cave location</a> which records our first tangles with G&amp;K.]
<p>The coordinate system used by the Austrian Kataster is called the
Gau&szlig; + Kr&uuml;ger Landeskoordinatensystem, which is supposedly
identical to the widely used Universal Transverse Mercator system (Gau&szlig;
@ -49,7 +51,7 @@ least, this was our belief, but we don't seem to be getting perfect agreement
between UTM/31 figures from GPS and the G&amp;K coordinates of fixed
points... This is probably because the bulk of Austria is in UTM zone 33
which you will see if you use a GPS, which will give coordinates in zone 33T.
Hmmmm. (See <a href="https://hoehle.org/downloads/SD_10_Handbuch.pdf">SD 10 Handbook, paras 8.7 and 8.8: &Ouml;K 50-UTM</a> for a possible explanation - Ed.)</p>
Hmmmm. [See <a href="https://hoehle.org/downloads/SD_10_Handbuch.pdf">SD 10 Handbook, paras 8.7 and 8.8: &Ouml;K 50-UTM</a> for a possible explanation - Ed.]</p>
<p>Within this system, there are a number of triangulation points surveyed
purely for the purpose of locating caves: these are the