Translator Disclaimer
8 July 2014 225GHz opacity measurements at Summit camp, Greenland, for the GreenLand Telescope (GLT) site testing
Author Affiliations +
We report three winter seasons and two full summer from August 2011 to April 2014 of atmospheric opacity measurements with a 225GHz tipping radiometer at Summit camp in Greenland (Latitude 72°.57 N, Longitude 38°.46 W, Elevation 3250 masl). The summit of the ice cap in Greenland is expected to be the location for the GreenLand Telescope (GLT), a 12 meters aperture millimeter / sub-millimeter telescope with VLBI and single- dish capability. The winter regime (November to April) is of particular interest for sub-millimeter observations since the opacities lower quartile in these months can get as low as 0.042, with occasional opacities as low as 0.025. We then compare Summit zenith opacities to other submillimeter sites.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pierre L. Martin-Cocher, Keiichi Asada, Satoki Matsushita, Ming-Tang Chen, Paul T. P. Ho, and Chien-Ping Chen "225GHz opacity measurements at Summit camp, Greenland, for the GreenLand Telescope (GLT) site testing", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91473N (8 July 2014);


Operating observatories: the need for a new paradigm
Proceedings of SPIE (August 06 2014)
The JCMT as operated by the East Asian Observatory ...
Proceedings of SPIE (July 15 2016)
Japanese Large Millimeter and Submillimeter Array
Proceedings of SPIE (July 31 1998)
Operating a heterogeneous telescope network
Proceedings of SPIE (June 29 2006)
Submillimeter observing conditions on Cerro Chajnantor
Proceedings of SPIE (July 17 2008)

Back to Top