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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 12 — Apr. 20, 2001
  • pp: 1886–1896

Comparison of columnar water-vapor measurements from solar transmittance methods

Beat Schmid, Joseph J. Michalsky, Donald W. Slater, James C. Barnard, Rangasayi N. Halthore, James C. Liljegren, Brent N. Holben, Thomas F. Eck, John M. Livingston, Philip B. Russell, Thomas Ingold, and Ilya Slutsker  »View Author Affiliations


Applied Optics, Vol. 40, Issue 12, pp. 1886-1896 (2001)
http://dx.doi.org/10.1364/AO.40.001886


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Abstract

In the fall of 1997 the Atmospheric Radiation Measurement program conducted a study of water-vapor-abundance-measurement at its southern Great Plains site. The large number of instruments included four solar radiometers to measure the columnar water vapor (CWV) by measuring solar transmittance in the 0.94-µm water-vapor absorption band. At first, no attempt was made to standardize our procedures to the same radiative transfer model and its underlying water-vapor spectroscopy. In the second round of comparison we used the same line-by-line code (which includes recently corrected H2O spectroscopy) to retrieve CWV from all four solar radiometers, thus decreasing the mean CWV by 8–13%. The remaining spread of 8% is an indication of the other-than-model uncertainties involved in the retrieval.

© 2001 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1110) Atmospheric and oceanic optics : Aerosols
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(010.7340) Atmospheric and oceanic optics : Water

History
Original Manuscript: June 12, 2000
Revised Manuscript: January 16, 2001
Published: April 20, 2001

Citation
Beat Schmid, Joseph J. Michalsky, Donald W. Slater, James C. Barnard, Rangasayi N. Halthore, James C. Liljegren, Brent N. Holben, Thomas F. Eck, John M. Livingston, Philip B. Russell, Thomas Ingold, and Ilya Slutsker, "Comparison of columnar water-vapor measurements from solar transmittance methods," Appl. Opt. 40, 1886-1896 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-12-1886

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