Where is Ridge A?

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding 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
Title of host publicationAstrophysics from Antarctica
Subtitle of host publicationProceedings IAU Symposium No. 288
EditorsM. G. Burton, X. Cui, N. F. H. Tothill
Place of PublicationCambridge
PublisherCambridge University Press
Number of pages2
ISBN (Print)9781107033771
Publication statusPublished - Aug 2012
EventInternational Astronomical Union Symposium (288th : 2012): Astrophysics from Antarctica - Beijing, China
Duration: 20 Aug 201224 Aug 2012
Conference number: 288

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)17439213
ISSN (Electronic)17439221


ConferenceInternational Astronomical Union Symposium (288th : 2012)
Abbreviated titleIAU Symposium (288 : 2012)


  • PWV
  • Ridge A
  • site testing
  • terahertz

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    Sims, G., Kulesa, C., Ashley, M. C. B., Lawrence, J. S., Saunders, W., & Storey, J. W. V. (2012). Where is Ridge A? In M. G. Burton, X. Cui, & N. F. H. Tothill (Eds.), Astrophysics from Antarctica: Proceedings IAU Symposium No. 288 (S288 ed., Vol. 8, pp. 304-305). (Proceedings of the International Astronomical Union; Vol. 8, No. S288). Cambridge: Cambridge University Press. https://doi.org/10.1017/S174392131201705X