expoweb/survey.html

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<title>CUCC's Austria expeditions</title>
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<h1>CUCC Austria Expeditions: Surveying</h1>
<p>Surveying is clearly a vital part of the work of any caving exploration
party, and for a group visiting the same area over a period of decades,
maintaining a comprehensive and accurate repository of surveys is of paramount
importance. CUCC's Austrian expeditions enjoy a reputation for the quality of
our surveying work, and many advances in surveying techniques and software have
been pioneered by Expos over the years.</p>
<p>In particular, the <a
href="http://www.survex.com/">Survex</a> suite of software for processing and
manipulating centreline data, now used on many of the world's major cave
surveying projects, was originally devised by Olly Betts during an Expo in the
early 90's, and its subsequent development has been largely a CUCC in-house
effort. In recent years we have also been using Julian Todd's <a
href="http://sourceforge.net/projects/tunnelx/">TunnelX</a> software
or <a href="http://therion.speleo.sk/">Therion</a> for
drawing up the final finished copy of surveys; this is one of the reasons why
it is not uncommon for there to be five computers in use in the Potato Hut
simultaneously!</p>
<p>A large proportion of this archive of survey data is available on this website.</p>
<h3>Centreline data</h3>
<p>After much debate as to whether it was more appropriate to make the data
available as raw Survex <tt>.svx</tt> files or as compiled <tt>.3d</tt> image
files, we opted to compromise by offering both. Unfortunately we are not able
to make the all the data publically available, as this includes a large amount
of data gathered by <a href="others/index.htm">other groups</a>; those who know
the Expo username and password can download the whole dataset <a
href="noinfo/all.3d">here</a> for the 3d files and <a
href="noinfo/all.tgz">here</a> for the Survex files.<sup><a id="fn1ref"
href="#footnote1">1</a></sup></p>
<h3>Working area</h3>
<p>Expo members should take particular note of the surveys working area, which
contains scans of recent survey notes. If you have surveys to draw up, they
will be listed in the <a href="survey">index,
ordered by year and wallet number</a>, which also lets you enter new
data (Currently broken), or there is a simple <a href="surveys/surveytable.html">index of all the scans</a>.</p>
<p><sup><a id="footnote1" href="#fn1ref">1</a></sup>As there are (at the last
count) 563 separate files in the raw dataset, it is available for download as a
tar archive compressed with GZIP; on Unix systems this can be decompressed with
"tar -xzvf all.tgz". Windows users can read these files with <a
href="https://www.winzip.com/win/en/">WinZip</a> or an equivalent tool (such as the
freeware <i>WinImp</i>).</p>
<h3>Status</h3>
<p>Survey data is being made available gradually on a
cave-by-cave basis and is now nearly complete - except for recent discoveries. The first batch of caves were those under active exploration
by CUCC as of summer 2004, namely <a
href="1623/204/204.html">Steinbr&uuml;ckenh&ouml;hle</a> (1623/204), <a
href="1623/234/234.html">Hauchh&ouml;hle</a> (1623/234) and <a
href="1623/76/76.htm"> Eislufth&ouml;hle</a> (1623/76).</p>
<h3>Drawn-up surveys</h3>
<p>Final copies of surveys of various vintages are sprinkled throughout the
site, linked from the description pages of the caves they correspond to. Of
current interest are the plans of <a
href="1623/204/204.html">Steinbr&uuml;ckenh&ouml;hle</a>, <a
href="1623/234/234.html">Hauchh&ouml;hle</a>, and <a
href="1623/76/76.htm"> Eislufth&ouml;hle</a>.</p>
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<!-- LINKS -->
<ul id="links">
<li><b>Main Indices:</b>
<ul>
<li><a href="infodx.htm"><b>Index</b> to Expo</a> information pages</li>
<li><a href="areas.htm">Description of CUCC's area</a> and split to subareas</li>
<li>Full <a href="indxal.htm">Index to cave descriptions</a> in area 1623</li>
<li>List of (links to) <a href="pubs.htm">published reports and logbooks</a></li>
</ul></li>
<li><b>Pictures:</b>
<ul>
<li><a href="gall0.htm">Text only Index</a></li>
<li><a href="gallery/0.htm">Index pages (with thumbnails)</a></li>
</ul></li>
<li>Other info:
<ul>
<li>Table of <a href="folk/index.htm">members of CUCC expeditions</a> 1976-present</li>
<li><a href="others/index.htm">Other groups</a> who have worked in the area.</li>
</ul></li></ul>
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