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© University of Reading 2008 www.reading.ac.uk
Department of Meteorology
Deriving the Extraterrestria
l Solar Spectrum
Kaah Menang, Liam Tallis , Igor Ptashnik and Keith Shine.
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CAVIAR Field Meeting, Reading University (6 December2010)
Update on Filtering and Derived Spectra
2
Three Methods of filtering:• Using Optical Depths• Using RMSE of the fit• Using air mass and irradiances
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CAVIAR Field Meeting, Reading University (6 December2010)
Filtering(Camborne)
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CAVIAR Field Meeting, Reading University (6 December2010)
Filtering(Using OD)
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![Page 5: © University of Reading 2008 Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik](https://reader036.vdocuments.us/reader036/viewer/2022062313/56649d5a5503460f94a3a689/html5/thumbnails/5.jpg)
CAVIAR Field Meeting, Reading University (6 December2010)
Filtering(Using RMSE)
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CAVIAR Field Meeting, Reading University (6 December2010)
Filtering(Using AM and I)
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CAVIAR Field Meeting, Reading University (6 December2010)
Derived(filtered) OD/spectrum for 22/08/2008
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CAVIAR Field Meeting, Reading University (6 December2010)
Derived(filtered) spectrum(Cam/Kurucz)
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![Page 9: © University of Reading 2008 Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik](https://reader036.vdocuments.us/reader036/viewer/2022062313/56649d5a5503460f94a3a689/html5/thumbnails/9.jpg)
CAVIAR Field Meeting, Reading University (6 December2010)
Derived(filtered) spectrum(Cam/Kurucz)
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![Page 10: © University of Reading 2008 Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik](https://reader036.vdocuments.us/reader036/viewer/2022062313/56649d5a5503460f94a3a689/html5/thumbnails/10.jpg)
CAVIAR Field Meeting, Reading University (6 December2010)
Derived(filtered) spectrum(Cam/Jung/Kurucz)
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![Page 11: © University of Reading 2008 Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik](https://reader036.vdocuments.us/reader036/viewer/2022062313/56649d5a5503460f94a3a689/html5/thumbnails/11.jpg)
CAVIAR Field Meeting, Reading University (6 December2010)
Derived(filtered) spectrum(Cam/Jung/Kurucz)
11
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CAVIAR Field Meeting, Reading University (6 December2010)
Langley plots
22/08/2008 18/09/2008
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CAVIAR Field Meeting, Reading University (6 December2010)
Langley plots
22/08/2008 18/09/2008
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CAVIAR Field Meeting, Reading University (6 December2010)
Langley plots
22/08/2008 18/09/2008
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CAVIAR Field Meeting, Reading University (6 December2010)
RMSE plots
22/08/2008 18/09/2008
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CAVIAR Field Meeting, Reading University (6 December2010)
Discussion/Future Work• Derived TOA solar spectrum different for 2 days
in Camborne.• Derived TOA solar spectrum from Camborne
very different from that of Jungfraujoch
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