Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-24T16:52:07.526Z Has data issue: false hasContentIssue false
  • English
  • Français

Atmospheric Transmission at Dome C between 0 and 10 THz

Published online by Cambridge University Press:  24 December 2009

L. Spinoglio ,
N. Epchtein ,
N. Schneider ,
V. Minier ,
G. Durand ,
P. Tremblin ,
J. Urban  and
P. Baron
N. Schneider
Affiliation:
IRFU/SAp CEA/DSM, Lab. AIM CNRS, Université Paris Diderot, Gif-sur-Yvette, France
V. Minier
Affiliation:
IRFU/SAp CEA/DSM, Lab. AIM CNRS, Université Paris Diderot, Gif-sur-Yvette, France
G. Durand
Affiliation:
IRFU/SAp CEA/DSM, Lab. AIM CNRS, Université Paris Diderot, Gif-sur-Yvette, France
P. Tremblin
Affiliation:
IRFU/SAp CEA/DSM, Lab. AIM CNRS, Université Paris Diderot, Gif-sur-Yvette, France
J. Urban
Affiliation:
Chalmers University of Technology, Dep. of Radio and Space Science, Göteborg, Sweden
P. Baron
Affiliation:
National Insitute for Information and Communication, Koganei, Japan
Get access

Abstract

We present model calculations of the atmospheric transmission for DOME C in Antarctica for frequencies up to 10 THz (30 μm) using the forward model MOLIERE-5. Measurements of precipitable water vapor (pwv), obtained by the SUMMIT radiometer installed at the Concordia station during 2008 and working at a wavelength of 200 μm, are translated into atmospheric transmission using MOLIERE. Quartiles of transmission, calculated from 200 μm data are extrapolated to 350 μm and compared to the CCAT (Cornell-Caltech Atacama Telescope) site in Chile. It turns out that for 25% of the time at DOME C (CCAT), the transmission is around 20% (5%) at 200 μm. This corresponds to a pwv of 0.18 mm for DOME C. At 350 μm, for 50% of time at DOME C (CCAT) the transmission is around 55% (25%). This corresponds to a pwv of 0.22 mm for DOME C. These results show that DOME C is one of the best observing sites on Earth for submm-astronomy with respect to high atmospheric transmission over long time periods.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 40: 3rd ARENA Conference: An Astronomical Observatory at CONCORDIA (Dome C, Antarctica) , 2010 , pp. 327 - 332
Copyright
© EAS, EDP Sciences, 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Clough, S.A., Shepard, M.W., Mlawer, E.J., et al., 2005, J. Quant. Spec. Rad. Transfer, 91, 233 CrossRef
Lord, S., 1992, NASA Techn. Memo., 1203957
Paine, S., 2004, SMA Techn. Memo., 152
Pardo, J.R., Cernicharo, J., Serabyn, E., 2001, IEEE Trans. Antennas Propagation, 49/12, 1683
Pardo, J.R., Serabyn, E., Wiedner, M.C., & Cernicharo, J., 2005, JQSRT, 96, 537 CrossRef
Rosenkranz, P., 1993, Atmospheric Remote Sensing by Mm Radiometry, Wiley Series in Remote Sensing, p. 37
Urban, J., Baron, P., Lautié, N., Dassas, K., Schneider, N., et al., 2004, JQSRT, 83, 3–4, 529 CrossRef