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 language | English |
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Title of host publication | Ground-Based and Airborne Telescopes IV |
Subtitle of host publication | Proceedings of SPIE 8444 |
Editors | Larry M. Stepp, Roberto Gilmozzi, Helen J. Hall |
Place of Publication | Bellingham, Washington |
Publisher | SPIE |
Pages | 1-9 |
Number of pages | 9 |
Volume | 8444 |
ISBN (Print) | 9780819491459 |
DOIs | |
Publication status | Published - 2012 |
Event | Ground-Based and Airborne Telescopes IV - Amsterdam, Netherlands Duration: 1 Jul 2012 → 6 Jul 2012 |
Other
Other | Ground-Based and Airborne Telescopes IV |
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Country/Territory | Netherlands |
City | Amsterdam |
Period | 1/07/12 → 6/07/12 |