CSG UK field and CP37 published

[Wookey]

Cave Surveying Group Field Meet - 14-15 April 2007, Derbyshire, UK 

Arranged to co-incide with the BCRA Technology Symposium on Saturday,
the CSG is meeting on Sunday. Surveying training is available for
anyone who wants it - please make yourself known to the organisers.

We will be examining and testing electronic surveying instruments which
have been designed over the last few years to see how they compare
with standard instruments. Some of the designers will be there to
explain their work. 

We will also be covering survey-drawing software, with demonstrations,
training and discussions and some examples of current work, as time
allows.

To attend: please contact Allan Richardson (forthwith)
mailto:csg-meetings at bcra.org.uk  We will be staying at the Orpheus
hut.


Compass Points 37 published

The current issue of Compass Points - the CSG magazine - has just been
published. You can read it online at the URL below. If you would like
a paper copy then please subscribe (email csg-secretary at bcra.org.uk).
It's currently less than a fiver for 4 issues, and you can now do it
by paypal. 

http://www.chaos.org.uk/survex/cp/CP37/CP37.pdf

Contents:
Electronic Compass/Clino update - Mike McCombe

  Latest Developments in Mike's instrument development, including how
the calibration is done. 
  
A Web-based survey viewer - Martin Green

  Martin describes his site which allows easy overlaying of surveys on
  google maps. He is looking for feedback on how to cater for
  uploading large collections of surveys.

Surveying software updates

  New versions of Compass, Therion and an installer for Tunnel

Calibrating a combined electronic compass/clinometer - Phil Underwood

  The method used to calibrate an electronic compass/clinometer unit,
  plus some field trial data comparing its performance to standard
  Suunto sighted instruments.
 
A protoype digital underwater line compass for underwater cave
surveying - Simon Richards

  A project to design and build an electronic compass for cave divers
  with the goal of reducing the frequency of gross errors, thereby
  improving accuracy.
    

Wookey
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