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Austrian Kataser and Coordinates

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Philip Sargent
2022-11-21 01:03:04 +00:00
parent e344596a1b
commit 3ba6ecae26
8 changed files with 43 additions and 62 deletions
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18
handbook/survey/coord2.html
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@@ -7,11 +7,12 @@
<h2 id="tophead">CUCC Expo Surveying Handbook</h2>
<h1>GPS and coordinate systems</h1>
<style>figure {font-weight: bold; font-size: small; font-family: sans-serif;font-variant-caps: small-caps;}</style>
<p>See also:<br>
<a href="/eastings">Troggle UTM data report</a><br>
<a href="lasers.htm">Geographical fixed points on Loser</a><br>
<a href="coord.htm">Basic Coordinate Systems</a>.
<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>.
<h3>Coordinate systems</h3>
@@ -95,6 +96,15 @@ has a laptop :-), and as a backup (expo computers break down surprisingly often
it seems) write it down by hand on one of the A5 cave info sheets with all the
other details of your cave and put that in the surveys ringbinder file. </p>
<h3>Nitty Gritty</h3>
<div >
<figure>
<a href="../i/meridianstreifen.jpg"><img src="../t/meridianstreifen.jpg"></a>
<br><br><figcaption>Austrian Meridians<a href="https://hoehle.org/downloads/SD_10_Handbuch.pdf">SD 10 Handbook</a> 8.7 - click to enlarge</figcaption>
</figure>
</div>
<p>If you want to read about the nitty gritty of converting GPS coordinates to
the ones used by the Kataster system, you can do no better than read the
short introduction to <a href="coord.htm">coordinate systems</a>, which briefly
@@ -103,7 +113,9 @@ says "it's horribly complicated and we use computer programs to do it properly".
<a href="../../years/1996/gps.htm">Compass Points Article</a> from 1996, which
briefly says "it's horribly complicated and we don't really know how to do it
properly".) Overall things have significantly improved since the early days,
particularly as without the fog of the SA variation it's now easy to find out
particularly as without the fog of the
<a href="https://www.gps.gov/systems/gps/modernization/sa/">Selective Availability</a>
variation it's now easy to find out
whether your GPS is set up right by just GPSsing a known point and comparing
the results. However, the main point of having a GPS fix on an entrance is
so we can find it again and be sure it is the same one!</p>