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Summary: Snodar: a new instrument to measure the height of the boundary layer
on the Antarctic plateau
Colin S. Bonner*a
, Michael C. B. Ashley a
, Jon S. Lawrencea
, John W. V. Storey a
,
Daniel M. Luong-Vana
, Stuart G. Bradleyb
a
School of Physics, University of New South Wales, Sydney NSW 2052, Australia
b
Faculty of Science, University of Auckland, Auckland, New Zealand
ABSTRACT
The height of the atmospheric boundary layer on the Antarctic plateau is of particular importance to designers of optical
telescopes for Antarctica. Snodar was developed at the University of New South Wales to measure the height of the
atmospheric boundary layer at Dome A and Dome C on the Antarctic plateau. Snodar, or Surface layer Non-Doppler
Acoustic Radar, is a true monostatic high-frequency acoustic radar (SODAR) operating between 5 kHz and 15 kHz. As
the height of the boundary layer at Dome C is expected to be less then 30 m, and unknown at Dome A, Snodar was
designed to have a minimum sampling height of 5 m with a vertical resolution of 1 m or better. Snodar uses a PC/104
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