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*fix and GPS

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Philip Sargent
2023-10-17 01:48:28 +03:00
parent 0a5016aead
commit 13e8122ded
8 changed files with 134 additions and 37 deletions
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7
handbook/survey/gps.htm
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@@ -4,7 +4,6 @@
<link rel="stylesheet" type="text/css" href="../../css/main2.css" />
</head>
<body>
<h2 id="tophead">CUCC Expo Surveying Handbook</h2>
<h1>Locating entrances by GPS</h1>
@@ -27,6 +26,7 @@ landmark with a wide, clear view of the sky, and within one (or maybe two) surve
of the entrance. If you have found a group of caves close together, it
might be better to GPS a central point rather than get quick (but less
accurate) fixes on each entrance.</p>
<p>Yes, you will have to manually do a surface survey leg using your survey instruments between the GPS point and the cave entrance tag station, and record that in your cave survex file.
<p>We now (2018) have differential GPS which is much more accurate than
in the past (e.g. Wookey's 1996 article) but altitudes are often very inaccurate
@@ -61,8 +61,5 @@ on coordinate systems</a> has been moved to a different page. If you are really
<a href="coord.htm">Olaf's article</a>too.
<hr />
</body>
<hr /></body>
</html>