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© University of Reading 2008 www.reading.ac.uk Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik.

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Presentation on theme: "© University of Reading 2008 www.reading.ac.uk Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik."— Presentation transcript:

1 © University of Reading 2008 www.reading.ac.uk Department of Meteorology Deriving the Extraterrestrial Solar Spectrum Kaah Menang, Liam Tallis, Igor Ptashnik and Keith Shine.

2 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

3 CAVIAR Field Meeting, Reading University (6 December2010) Filtering(Camborne) 3

4 CAVIAR Field Meeting, Reading University (6 December2010) Filtering(Using OD) 4

5 CAVIAR Field Meeting, Reading University (6 December2010) Filtering(Using RMSE) 5

6 CAVIAR Field Meeting, Reading University (6 December2010) Filtering(Using AM and I) 6

7 CAVIAR Field Meeting, Reading University (6 December2010) Derived(filtered) OD/spectrum for 22/08/2008 7

8 CAVIAR Field Meeting, Reading University (6 December2010) Derived(filtered) spectrum(Cam/Kurucz) 8

9 CAVIAR Field Meeting, Reading University (6 December2010) Derived(filtered) spectrum(Cam/Kurucz) 9

10 CAVIAR Field Meeting, Reading University (6 December2010) Derived(filtered) spectrum(Cam/Jung/Kurucz) 10

11 CAVIAR Field Meeting, Reading University (6 December2010) Derived(filtered) spectrum(Cam/Jung/Kurucz) 11

12 CAVIAR Field Meeting, Reading University (6 December2010) Langley plots 22/08/200818/09/2008

13 CAVIAR Field Meeting, Reading University (6 December2010) Langley plots 22/08/200818/09/2008

14 CAVIAR Field Meeting, Reading University (6 December2010) Langley plots 22/08/200818/09/2008

15 CAVIAR Field Meeting, Reading University (6 December2010) RMSE plots 22/08/200818/09/2008

16 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 16

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