Sub-millimeter Atmospheric Opacity Over “El Leoncito” Site

2020 ◽  
Author(s):  
Deysi Cornejo Espinoza ◽  
Jean-Pierre Raulin ◽  
J. F. Valle Silva ◽  
C. G. Gimenez de Castro ◽  
Marta M. Cassiano
Keyword(s):  
Atmospheric Opacity

scholarly journals Reanalysis of the 1992 South Pole Millimetre-Wavelength Atmospheric Opacity Data

2004 ◽  
Vol 21 (3) ◽  
pp. 264-274 ◽  
Author(s):  
Richard A. Chamberlin
Keyword(s):  
Time Series ◽  
Transfer Model ◽  
South Pole ◽  
Millimetre Wave ◽  
Atmospheric Opacity ◽  
Site Survey ◽  
Direct Measurements ◽  
Gain Error ◽  
Sky Brightness ◽  
Total Opacity

AbstractIn 1992 an NRAO 225-GHz site survey heterodyne radiometer was placed at the Geographical South Pole. The instrument operated over an entire annual cycle and provided direct measurements of the millimetre-wave sky brightness temperature as a function of zenith angle. Interpreted in a single-slab ‘skydip’ radiation transfer model of the atmosphere, these sky brightness measurements provided a time series of the millimetre atmospheric opacity. Statistics derived from this opacity time series were important for making comparisons with other candidate millimetre and sub-millimetre wave astronomy sites. This paper reexamines the 1992 measurements and the original analysis. Details of the skydip fit model, radiometer gain error, instrument stability, and a mid-season replacement to a window in the instrument enclosure combined to cause a modest under-reporting of the atmospheric opacity in previous reports. Unchanged are earlier conclusions that dry air makes a significant contribution to the total opacity at 225 GHz.

Measurements of 460GHz Atmospheric Opacity at Yangbajing Observational Station†

2011 ◽  
Vol 35 (3) ◽  
pp. 327-338
Author(s):  
Zhou Ming-feng ◽  
Yao Qi-jun ◽  
Li Sheng ◽  
Luo Zhi-quan ◽  
Yang Ji
Keyword(s):  
Atmospheric Opacity ◽  
Observational Station

scholarly journals FTS Measurements of Submillimeter-Wave Atmospheric Opacity at Pampa la Bola II : Supra-Terahertz Windows and Model Fitting

1999 ◽  
Vol 51 (5) ◽  
pp. 603-610 ◽  
Author(s):  
Satoki Matsushita ◽  
Hiroshi Matsuo ◽  
Juan R. Pardo ◽  
Simon J. E. Radford
Keyword(s):  
Model Fitting ◽  
Submillimeter Wave ◽  
Atmospheric Opacity

Measurement of atmospheric opacity at 278 GHz at McMurdo Station, Antarctica in austral spring seasons, 1986 and 1987

1990 ◽  
Vol 11 (4) ◽  
pp. 463-467 ◽  
Author(s):  
R. L. de Zafra ◽  
M. Jaramillo ◽  
J. Barrett ◽  
L. K. Emmons ◽  
A. Parrish ◽  
...  
Keyword(s):  
Austral Spring ◽  
Atmospheric Opacity ◽  
Mcmurdo Station
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