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CAVIAR Meeting May 2010 Liam Tallis, Keith Shine, Tom Gardiner, Marc Coleman, Igor Ptashnik.

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Presentation on theme: "CAVIAR Meeting May 2010 Liam Tallis, Keith Shine, Tom Gardiner, Marc Coleman, Igor Ptashnik."— Presentation transcript:

1 CAVIAR Meeting May 2010 Liam Tallis, Keith Shine, Tom Gardiner, Marc Coleman, Igor Ptashnik

2 Contents Assessment of H 2 O Line Intensities – Camborne – Jungfraujoch Moving Toward the Absolute Calibration – Camborne Future Work

3 ASSESSMENT OF H 2 O LINE INTENSITIES Introduction

4 a τ w + b τ g + c

5 ASSESSMENT OF H 2 O LINE INTENSITIES Camborne

6 Retrieved “a” parameter a = / a = / a = /- 0.06

7 Camborne: Retrieved ‘a’ Spectral Region (cm -1 )Retrieved ‘a’ 3000 – / – / /- 0.07

8 Retrieved “a” against Pseudo Strength

9

10 MCT Problems

11

12

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14 Fit Wings of Strong Lines

15 Fit All of Weaker Lines

16 Retrieved “a” parameter

17 MCT Retrieved “a” Numbers FlightDateTime (U.T.) Solar Zenith Angle Average a Value Between 820cm-1 and 920cm-1 B39619 Aug B40018 Sep

18 ASSESSMENT OF H 2 O LINE INTENSITIES Jungfraujoch

19 Retrieved “a” parameter a = / a = / a = /- 0.05

20 Retrieved “a” parameter

21 ABSOLUTE CALIBRATION

22 Absolute Calibration

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27 FUTURE WORK

28 Future Work Assessment of Line Intensities – Camborne Completed; retrieved “a” are consistent with previous work at Reading – Jungfraujoch Work has began; will be fairly quick with confirmed water profiles. Initial results are quite promising to moving closer to band centres Absolute Calibration – Camborne On going work; need to think in some detail now what is causing difference between model and observations (line lists, continuum model, Kurucz, water profiles ) – Jungfraujoch Calibration data now available; work to begin after Camborne


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