Subject: RE: [BoundaryPoint] Re: re eelvru<br/>
Date: Jul 31, 2003 @ 13:29<br/>
Author: Jan S. Krogh (&quot;Jan S. Krogh&quot; &lt;jan.krogh@...&gt;)<br/>
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<div id="ygrps-yiv-324179334">THALWEG<br/>
1. «A German term, literally &quot;downstream,&quot; with reference to river<br/>
navigation. Here referring to the deepest channel in a river, genereally the<br/>
most suitable channel for navigation at the normal lowest water level.»<br/>
(Biger, p. 522)<br/>
<br/>
2. «(täl´cäk), n. [G.] a line on a topographical surface having everywhere<br/>
the direction of greatgest slope, and distinguished by having the lines of<br/>
straight horizontal projection which cut all contours at right angles.»<br/>
(Webster&#39;s Unabridged)<br/>
<br/>
OK! OK! I will look for the treaties! ;-)<br/>
<br/>
(How to find the deepest channel in a 5 metre broad river?!?)<br/>
<br/>
<br/>
Jan<br/>
<br/>
<br/>
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