Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Dome C atmospheric conditions: implications for astronomy J.S. Lawrence, M.C.B. Ashley, M.G. Burton, J.W.V. Storey
 

Summary: Dome C atmospheric conditions: implications for astronomy
J.S. Lawrence, M.C.B. Ashley, M.G. Burton, J.W.V. Storey
School of Physics, University of New South Wales, Sydney, NSW 2052, Australia
jl@phys.unsw.edu.au
ABSTRACT
The expectation that exceptional conditions for astronomy would be found at
Dome C on the high Antarctic plateau has motivated a coordinated effort by a
number of international teams to comprehensively measure the atmospheric con-
ditions at this site. This paper presents an overview of the current status of site
testing at Dome C. We discuss the past, present, and planned instrumentation,
the main results obtained to date, and the implications of these results.
1. Introduction
It has long been recognised that sites on the Antarctic plateau should be ideal for astron-
omy. It was expected that low temperatures throughout the Antarctic plateau troposphere
would result in a low sky thermal emission (Harper 1989) and low precipitable water vapour,
and that the calm and stable atmosphere above the Antarctic plateau would result in weak
turbulence and thus good seeing (Gillingham 1991).
These expectations have motivated over a decade of site testing at the US Amundsen-
Scott South Pole station. The infrared sky emission was found to be 12 orders of magnitude
lower than typically found at mid-latitude sites (Ashley et al. 1996; Nguyen et al. 1996;

  

Source: Ashley, Michael C. B. - School of Physics, University of New South Wales

 

Collections: Physics