Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
Appl Opt. 2007 Apr 10;46(11):2091-8.

Validation of an 8-14 microm cloud monitor using visual observations of Antarctic cloud cover.

Author information

  • 1Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98196, USA. mccarthy@u.washington.edu


A cloud monitor instrument, sensing 8-14 microm infrared radiation, has been installed near McMurdo, Antarctica, in order to provide supporting cloud cover information for a high-resolution sky-viewing Fabry-Perot spectrometer experiment. Validation of the cloud monitor observations was performed by a 1 year long comparison with the available 6 h visual cloud observations, expressed in octas (obscured eighths of the sky). The agreement between visual observations and those of the cloud monitor is good--the variation being slightly over one step, or octa--except at the clear sky extreme, which the subjective visual observations tend to overestimate during dark and moonless conditions. Both visual observations and the cloud monitor measurements show an austral winter-summer difference with the winter being clearer.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk