Spectral longwave emission in the tropics: FTIR measurement at the sea surface and comparison with fast radiation codes

D. Lubin, D. Cutchin, W. Conant, H. Grassl, U. Schmid, W. Biselli

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Longwave emission by the tropical western Pacific atmosphere has been measured at the ocean surface by a Fourier Transform Infrared (FTIR) spectroradiometer deployed aboard the research vessel John Vickers as part of the Central Equatorial Pacific Experiment. The instrument operated throughout a Pacific Ocean crossing, beginning on 7 March 1993 in Honiara, Solomon Islands, and ending on 29 March 1993 in Los Angeles, and recorded longwave emission spectra under atmospheres associated with sea surface temperatures ranging from 291.0 to 302.8 K. Precipitable water vapor abundances ranged from 1.9 to 5.5 column centimeters. Measured emission spectra (downwelling zenith radiance) covered the middle infrared (5-20 μ). FTIR measurements made under an entirely clear field of view are compared with spectra generated by LOWTRAN 7 and MODTRAN 2. -from Authors

Original languageEnglish (US)
Pages (from-to)286-295
Number of pages10
JournalJournal of Climate
Volume8
Issue number2
DOIs
StatePublished - 1995

ASJC Scopus subject areas

  • Atmospheric Science

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