How Deep is Your Loch?
(not a talk about the Bee Gees)
Philip Taylor | @ScienceAndMaps
I know your eyes in the morning sun
I feel you touch me in the pouring rain
And the moment that you wander far from me
I shout: “What’s the highest point in the UK?”
“Despite acknowledging the value of such a survey, the
response from the Treasury indicated that the work was
not in the interests of navigation and so fell outwith the
functions of the Admiralty, whilst the Ordnance Survey
would confine its attentions to dry land. As Murray
concluded, 'we were led to take up this self-imposed task
because ... there was no hope of the work being
undertaken by any Government Department’ ”
Murray & Pullar, 1910 vol. 1, p. 4.
“The accuracy of the soundings have generally been
confirmed by later 20th century technology. For
example, the Loch Ness bathymetric and seismic
survey in 1992 using sonar measurements recorded
a depth of 786 feet, only 32 feet more than the
Young, I & Shine, A.J., 'Loch Ness bathymetric and seismic survey',
The Scottish Naturalist 105 (1993), 23-43.
These methods have given a new measure of mean
depth (102m, previously 87m), and a new measure of
volume (2.74km3, previously 2.32km3).
That additional volume is enough to cover
the personal use of every person
in Scotland for 1.5 years.