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

1 Scopus citations

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 (US)
Title of host publicationGround-Based and Airborne Telescopes IV
DOIs
StatePublished - 2012
Externally publishedYes
EventGround-Based and Airborne Telescopes IV - Amsterdam, Netherlands
Duration: Jul 1 2012Jul 6 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8444
ISSN (Print)0277-786X

Other

OtherGround-Based and Airborne Telescopes IV
Country/TerritoryNetherlands
CityAmsterdam
Period7/1/127/6/12

Keywords

  • Antarctic astronomy
  • Precipitable water vapour
  • Ridge A
  • Site testing
  • Terahertz spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Where is Ridge A?'. Together they form a unique fingerprint.

Cite this