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Efficient radiative...
Efficient radiative transfer simulations for a broadband infrared radiometer—Combining a weighted mean of representative frequencies approach with frequency selection by simulated annealing
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- Buehler, Stefan A. (author)
- Luleå tekniska universitet,Rymdteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- John, V.O. (author)
- Met Office Hadley Centre, FitzRoy Road, Exeter EX1 3PB, UK,Met Office
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- Kottayil, Ajil (author)
- Luleå tekniska universitet,Rymdteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Milz, Mathias (author)
- Luleå tekniska universitet,Rymdteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Eriksson, Patrick, 1964 (author)
- Radio and Space Science, Chalmers University of Technology, 41296 Göteborg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2010
- 2010
- English.
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In: Journal of Quantitative Spectroscopy and Radiative Transfer. - : Elsevier BV. - 0022-4073 .- 1879-1352. ; 111:4, s. 602-615
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- We present a method to efficiently simulate the measurements of a broadband infrared instrument. The High Resolution Infrared Radiation Sounder (HIRS) instrument is used as example to illustrate the method. The method uses two basic ideas. Firstly, the channel radiance can be approximated by a weighted mean of the radiance at some representative frequencies, where the weights can be determined by linear regression. Secondly, a near-optimal set of representative frequencies can be found by simulated annealing.The paper does not only describe and analyze the method, it also describes how the method was used to derive optimized frequency grids for the HIRS instruments on the satellites TIROS N, NOAA 6-19, and Metop A. The grids and weights, as well as the optimization algorithm itself are openly available under a GNU public license.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)
Keyword
- ARTS
- Atmospheric radiative transfer simulator
- Correlated k
- Frequency selection
- High resolution infrared radiation sounder
- HIRS
- Radiative transfer
- Simulated annealing
- Thermal infrared
- Weighted mean of representative frequencies
- WMRF
- Space Technology
- Rymdteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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