Where is ridge a?

Geoff Sims, Craig Kulesa, Michael C.B. Ashley, Jon S. Lawrence, Will Saunders, John W.V. Storey

Research output: Chapter in Book/Report/Conference proceedingConference contribution


First identified in 2009 as the site with the lowest precipitable water vapour (PWV) and best terahertz transmission on Earth, Ridge A is located approximately 150 km south of Dome A, Antarctica. We use three years of data from the Microwave Humidity Sensor (MHS) on the NOAA-18 satellite and recent ground-based measurements from Ridge A to probe the PWV variations and stability over the high Antarctic plateau.

Original languageEnglish (US)
Title of host publicationAstrophysics from Antarctica
EditorsMichael G. Burton, Xiangqun Cui, Nicholas F. H. Tothill
Number of pages2
StatePublished - Aug 2012
Externally publishedYes

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • PWV
  • Ridge A
  • site testing
  • terahertz

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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