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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<title>CUCC Expo Surveying Handbook: Entering data</title>
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2004-04-21 10:35:34 +01:00
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<link rel="stylesheet" type="text/css" href="../../css/main2.css" />
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<body>
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2004-04-23 08:58:27 +01:00
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<div class="onleft">
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<a href="../../piclinks/typing.htm"><img src="../../tinypix/typing.jpg"
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width="176" height="115" alt="" /></a>
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<p class="caption">Tony Rooke entering data</p></div>
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2004-04-24 12:50:58 +01:00
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<h2 id="tophead">CUCC Expo Surveying Handbook</h2>
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<h1>Base Camp: from muddy book to Survex plot</h1>
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<p>The original notes and sketches should be filed in a clearly marked
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envelope - don't take them caving again and don't leave them lying around to
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be "Gössered"!</p>
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<p>The notes (all of them, including dates, personnel, calibration, LRUD,
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station details, etc.) should be filed away in a numbered wallet in the current
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surveys file. You might have to include a transcription if they are illegible
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(to other people; if you can't read them yourself, go back and do the survey
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again!). Even if you do this, never throw away the original notes.</p>
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<!-- Original text: ...copied onto a fresh page of the Survey Book
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while everyone's memory is still fresh (this helps if something is only
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marginally legible). This should be proof checked by someone else. Current
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survey books are divided into "Kaninchenhöhle" (usually referred to as
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"KH Survey book") and "surface stuff and other caves" (usually referred to as
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"notKH survey book"). There should be an index page at the front, which you
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should also fill in so that people can find your survey again.</p>-->
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<p>The data should be typed into whichever computer is being used for the
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survey, again including all the notes, including station details and passage
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names (and make a backup copy to a floppy or another machine). It is
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<b>absolutely essential</b> that you also fill in details of which survey
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folder the notes are in, with index numbers.</p>
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<p>Survex has its own documentation for the format of the data, though the
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template file and a look at someone else's data will quickly make this
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fairly clear. Survex has some very flexible data entry options, so there
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are a few extra guidelines to try to get some consistency in the way
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everyone uses it within this project.</p>
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<ul>
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<li>It will be easiest if you start from one of the existing template files,
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as these have lines to remind you to add various details - make sure you
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don't leave any blanks! Copy this to where you want to put your data
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<em>before</em> editing it (with any luck, the template should be on CD-ROM, so
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you can't trash it :-).</li>
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<!-- I think we can dispense with this now - DL
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<li>Filenames: Because Survex is used on different sorts of computer, it is
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best to use filenames which won't get changed when the files are moved
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between systems. On a PC this means using xxxxxxxx.SVX, where "xxxxxxxx" is a
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name of letters, numbers and maybe the underscore character, with a maximum
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length of eight. On an Acorn machine, the equivalent filename is
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"xxxxxxxx/SVX", and should have a filetype of "Text". Note that this must be
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kept in an image filing system such as SparkFS (.ZIP), X-files or DOSFS
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(which is most logical) to avoid truncation. I know Windows lets you have
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long meaningful names, but these tend to get lost on DOS floppies, or when
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moved to other machines. For directories (=folders), use a maximum of eight
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characters with no extension.-->
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<li><p>Where to put your data: <b>If in doubt, ASK!</b> If it is a surface
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survey, it goes in the "surface" directory; if it is a file of fixed points
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(like GPS fixes, or map coordinates), it goes in the "fixedpts" directory; if
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it is a new cave on the plateau, put it in a new directory under "caves".
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Underground data for Steinbrückenhöhle goes in one of the
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subdirectories under caves/204; it may well be clear which one from what it
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links to, but if not, ask.</p>
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</li>
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<li>What to call your survey: all your data should be inside a begin/end pair
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with a meaningful name. This need not be the same name as the file, but as a
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general rule it should be so unless there is a really good reason not to. On
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the other hand, if you have made two or three trips to the same cave,
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it can be a good idea to nest surveys in one file:
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<pre><i>File 2050-01.svx</i>
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*begin 2050-01
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*export pt1.1 pt2.5 [...]
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*begin pt1
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<i>[survey data from first trip]</i>
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*end pt1
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*begin pt2
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<i>[survey data from second trip]</i>
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*end pt2
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*end 2050-01
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</pre>
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<p>There is no restriction on the length of these names, but as they can be
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displayed in Aven, Tunnel and other such programs, it helps not to have
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anything too elaborate. Older versions of Survex required each prefix to be
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unique in its first eight characters, and this is not a bad guideline to
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follow.</p></li>
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<li>Every station should have a number <em>within your survey</em> even if it
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is an existing station to which you have connected. Any survey stations which
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you think can reliably be found again should be listed at the start of your
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survey file. This includes the name (within your survey) of any existing points
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you linked into. I have used lines like <tt>;*export mysurvey.pt1.0 ; 2nd bolt at
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head of new pitch</tt> – this may or may not catch on as a standard.</li>
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</ul>
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<p>At this stage, you have done enough to get a centre line for drawing up.
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If you aren't completely confident about the structure of the Austria data, or
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the Survex syntax of <tt>*equate</tt> and <tt>*export</tt> which can be rather
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cryptic for the uninitiated, it may be best not to try to link your survey to
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everything else so skip the next bit and read on <a href="#concrete">from
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here</a>.</p>
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<p>However, if you need to see your survey in relation to the rest of the
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dataset:</p>
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<ul>
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<li>Don't put any *equate directives to other surveys into your file (or any
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survey legs which quote station names from other survey files). Instead, go to
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the file which *includes the other files in the same area. For example, if you
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have created a file Trivial.svx in the caves/204/deepsouth directory, go to the
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file deepsouth/deepsouth.svx, where you will find *include lines for each of
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the files, together with the *equate lines to connect them together. Add an
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include for your file, and *equate lines for each of your survey stations which
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is the same as one in another survey. If your survey connects to points in
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surveys in files in more than one directory then the *equates should go in the
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204/204.svx file, but at this stage it is probably worth enlisting the help of
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someone who knows the structure of the data inside-out!</li>
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<li>You should now find that if you run Survex on one of the master files
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(all.svx, 204.svx, smk-system.svx, etc.) which includes the area of
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your new survey, it is linked in and will show up when you use the resultant
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.3d file in Aven. Using 204.svx should give info on how long and how
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deep the cave is now.</li>
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<li>Now you need to tell CVS to add your file to the master repository. This is
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very deep magic, and you should probably ask someone to show you how if you are
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not already familiar with CVS.</li>
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</ul>
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<p><a name="concrete">To make that</a> all a bit more concrete, here is a
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fictitious example of a survey off Swings & Roundabouts in 204. Let's say
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that you went to explore a lead from the QM list numbered 2002-99, that the
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nearest survey station was listed as 204.allswings.swings5.2 and you found it
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successfully, and numbered it within your own survey as station 0. Then you
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might create the following file:</p>
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<!-- Stolen, with apologies to Martin and Lucia, from
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caves/204/swings/ermintrude.svx. -->
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<pre><i>File wibble.svx</i>
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*begin wibble
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; Locn: Totes Gebirge, Austria - Loser/Augst-Eck Plateau (kataster group 1623)
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; Cave: Steinbruckenh<6E>hle
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*title "Wibbled by Goesser"
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*date 2004.08.32 ;date the survey was done
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*team Insts John Doe
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*team Notes Jane Doe
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*team Tape Jane Doe
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; ref.: 2004 #999 ; the #number is on the clear pocket containing the original notes.
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; ====== stations refindable to link to other surveys: ======
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*export 0 ; list all exported survey points.
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*calibrate tape 0 ; +ve if tape was too short, -ve if too long
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;calibration data 148,+23,147,+23.5,148,+23,329,-23,328,-23.5,328.5,-23
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;from to tape compass clino ; remarks
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1 p5 5.48 181 -27
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<i>[and the rest of your survey data]</i>
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6 5 5.66 - DOWN
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;stn L R U D Desc
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;1 0.7 0.4 0.3 0.5 RP top of boulder
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<i>[and the rest of the station details]</i>
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*end wibble
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</pre>
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<p>That lot would be typed by copying caves/204/template.svx to
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caves/204/swings/wibble.svx and then filling in the blanks and adding your
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data. If you are linking to the rest of the survey then in the file
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caves/204/swings/allswings.svx add the lines:</p>
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<pre>
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*include wibble
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*equate wibble.0 swings5.2
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</pre>
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<p>Remember not to put surface data and underground data in the same file,
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even if they are part of one continuous survey. You need to create two
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files, with a defined station for the entrance, and a suitable equate in
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the file which includes both surface stuff and underground stuff.</p>
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<!-- Did whoever surveyed bogenhoehle read this? -->
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<p>Once you have your data typed in and checked, it must be run through the
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survey software (which on expo will be <a
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href="http://www.survex.com/">Survex</a>) and a centre line printed, both for
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plan and for extended elevation. Measure the print out to check that it really
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has printed at the scale you wanted (typically 1:500), as this has sometimes
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caused problems in the past.</p>
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<p>Now see the "<a href="drawup.htm">Drawing it up</a>" page.</p>
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<hr />
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<ul id="links">
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<li><b>Expedition Handbook:</b>
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<ul>
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<li>Expo Handbook <a href="../index.htm">Introduction</a></li>
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<li><b>Surveying:</b>
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<ul>
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<li>Surveying <a href="index.htm">Overview</a> and index of
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topics</li>
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<li><a href="what.htm">What is a cave survey?</a></li>
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<li><a href="why.htm">Why am I doing this?</a></li>
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<li>Methods: <a href="how.htm">underground</a></li>
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<li>Pitfalls to avoid, <a href="hints.htm">hints'n'tips</a> to
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make life easier</li>
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<li>Methods: <a href="ontop.htm">surface</a></li>
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<li>Base Camp: getting it in to the computer</li>
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<li>Base Camp: <a href="drawup.htm">drawing it up</a>, writing
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the description</li>
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</ul></li>
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<li><a href="../look4.htm">Prospecting guide</a></li>
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<li><a href="../rescue.htm">Rescue guide</a></li>
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<li><a href="../rigit.htm">Rigging guide</a></li>
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<li><a href="../photo.htm">Photography guide</a></li>
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</ul></li>
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<li><a href="../../infodx.htm">Index to info/topics pages</a></li>
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<li><a href="../../indxal.htm">Full Index to area 1623</a>
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<ul>
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<li><a href="../../areas.htm">Area/subarea descriptions</a></li>
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</ul></li>
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<li><a href="../../index.htm">Back to Expedition Intro page</a></li>
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<li><a href="../../../index.htm">Back to CUCC Home page</a></li>
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</ul>
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2001-08-15 19:29:27 +01:00
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