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Recent developments...
Recent developments in the line-by-line modeling of outgoing longwave radiation
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- Buehler, Stefan (author)
- Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen, Germany
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- von Engeln, A. (author)
- Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen, Germany
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- Brocard, E. (author)
- Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen, Germany
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- John, Viju Oommen (author)
- Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen, Germany
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- Kuhn, Thomas, 1970- (author)
- I. Physikalisches Institut, Universitaet zu Koeln, Cologne, Germany
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- Eriksson, Patrick (author)
- Department of Radio and Space Science, Chalmers University of Technology, Gothenburg, Sweden
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Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen, Germany I Physikalisches Institut, Universitaet zu Koeln, Cologne, Germany (creator_code:org_t)
- Elsevier BV, 2006
- 2006
- English.
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In: Journal of Quantitative Spectroscopy and Radiative Transfer. - : Elsevier BV. - 0022-4073 .- 1879-1352. ; 98:3, s. 446-457
- Related links:
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https://ltu.diva-por... (primary) (Raw object)
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http://ltu.diva-port...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- High frequency resolution radiative transfer model calculations with the Atmospheric Radiative Transfer Simulator (ARTS) were used to simulate the clear-sky outgoing longwave radiative flux (OLR) at the top of the atmosphere. Compared to earlier calculations by Clough and coworkers the model used a spherical atmosphere instead of a plane parallel atmosphere, updated spectroscopic parameters from HITRAN, and updated continuum parameterizations from Mlawer and coworkers. These modifications lead to a reduction in simulated OLR by approximately 4.1%, the largest part, approximately 2.5%, being due to the absence of the plane parallel approximation. As a simple application of the new model, the sensitivity of OLR to changes in humidity, carbon dioxide concentration, and temperature were investigated for different cloud-free atmospheric scenarios. It was found that for the tropical scenario a 20% change in humidity has a larger impact than a doubling of the carbon dioxide concentration. The sensitive altitude region for temperature and humidity changes is the entire free troposphere, including the upper troposphere where humidity data quality is poor.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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