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survey DownstreamSump

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#this data represents a diving survey with compass, depth guage & tagged line

date 2011.01.08
team "Duncan Price" instruments
#helpers John Bennetts, Tony Boycott, Graham Mullan & John Williams
#scale depth inverted since +ve numbers used
#depth calibrated to survey of 2010.12.22
calibrate depth 0 -1
#no compass correction, bearings to nearest 10°


#declare survey type
data diving from fromdepth compass tape to todepth ignoreall

sd compass 5 degrees
sd depth 0.05 m

0 33.9 90 2.5 1 33.7 0=base of Persecution Pot
1 33.7  40  8 2 32.2
2 32.2  60  16  3 29.0
3 29.0  110 12  4 28.4
4 28.4  130 8 5 29.7
5 29.7  90  7.5 6 27.8
6 27.8  60  16.5  7 24.4
7 24.4  150 8 8 25.3
8 25.3  140 1 9 25.8
9 25.8  90  5 10  25.1
10  25.1  80 32  11  18.8
11  18.8  90  8 12  17.2
12  17.2  80  9 13  15.6 13=20m tag and junction to Dire Straits

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endsurvey DownstreamSump