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 contributionpeer-review

    1 Citation (Scopus)
    113 Downloads (Pure)

    Abstract

    First identified in 2009 as the site with the lowest precipitable water and best terahertz transmission on Earth, Ridge A is located approximately 150 km south of Dome A, Antarctica. To further refine this optimum location prior to deployment in 2012 of a robotic THz observatory, we have modelled the atmospheric transmission as a function of location over a 1,000,000 km square grid using three years of data from the Microwave Humidity Sounder on the NOAA-18 satellite. The modelling identifies a broad area of exceptionally low water vapour close to the 4,000 metre elevation contour, reaching below 100 microns for extended periods of time.

    Original languageEnglish
    Title of host publicationGround-Based and Airborne Telescopes IV
    Subtitle of host publicationProceedings of SPIE 8444
    EditorsLarry M. Stepp, Roberto Gilmozzi, Helen J. Hall
    Place of PublicationBellingham, Washington
    PublisherSPIE
    Pages1-9
    Number of pages9
    Volume8444
    ISBN (Print)9780819491459
    DOIs
    Publication statusPublished - 2012
    EventGround-Based and Airborne Telescopes IV - Amsterdam, Netherlands
    Duration: 1 Jul 20126 Jul 2012

    Other

    OtherGround-Based and Airborne Telescopes IV
    Country/TerritoryNetherlands
    CityAmsterdam
    Period1/07/126/07/12

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