OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 15 — May. 20, 2001
  • pp: 2376–2383

Sky-scanning radiometer for absolute measurements of atmospheric long-wave radiation

Rolf Philipona  »View Author Affiliations


Applied Optics, Vol. 40, Issue 15, pp. 2376-2383 (2001)
http://dx.doi.org/10.1364/AO.40.002376


View Full Text Article

Enhanced HTML    Acrobat PDF (1471 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Atmospheric long-wave radiation is one of the most promising parameters for observations of climate change that are greenhouse effect related. Long-wave irradiance is usually measured with pyrgeometers that consist of a flat thermopile and a hemispherical dome acting as a filter and protecting the absorbing receiver surface. Pyrgeometers are blackbody calibrated, but uncertainties, mainly related to the silicon hemisphere, arise from thermal effects, inadequate spectral transmission, and cosine-response errors. The new absolute sky-scanning radiometer (ASR) allows absolute measurements of atmospheric long-wave radiation and is suggested as a future reference standard for pyrgeometer field calibration. The calibration of the ASR is based on a reference blackbody source traced to absolute temperature standards. The pyroelectric detector has no window to prevent thermal and spectral transmission effects. Scanning the sky with a narrow viewing angle and integrating with the Gaussian quadrature, rather than taking hemispherical measurements, prevent errors related to the cosine effect.

© 2001 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(040.3060) Detectors : Infrared
(350.5610) Other areas of optics : Radiation

History
Original Manuscript: July 5, 2000
Revised Manuscript: January 2, 2001
Published: May 20, 2001

Citation
Rolf Philipona, "Sky-scanning radiometer for absolute measurements of atmospheric long-wave radiation," Appl. Opt. 40, 2376-2383 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-15-2376

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited