Post on 31-Mar-2015
CAVIAR Meeting
Exeter April 2010
Liam Tallis, Keith Shine, Tom Gardiner, Marc Coleman, Igor Ptashnik
Contents
• Assessment of H2O Line Intensities– Introduction– Camborne– Jungfraujoch
• Moving Toward the Absolute Calibration– Camborne
• Future Work
ASSESSMENT OF H2O LINE INTENSITIES
Introduction
Introduction
a τw + b τg + c
ASSESSMENT OF H2O LINE INTENSITIES
Camborne
Fit
Retrieved “a” parameter
MCT Problems
MCT Problems
MCT Problems
MCT Problems
Fit Wings of Strong Lines
Fit All of Weaker Lines
Retrieved “a” parameter
MCT Retrieved “a” Numbers
Flight Date Time (U.T.)Solar Zenith Angle
Average a Value Between 820cm-1 and 920cm-1
B396 19 Aug 2008 130941 38.77 0.976131050 38.83 0.980131204 38.89 0.979131243 38.92 0.979
B400 18 Sep 2008 111459 48.98 0.976111459 48.98 1.021
ASSESSMENT OF H2O LINE INTENSITIES
Jungfraujoch
Fit
Retrieved “a” parameter
ABSOLUTE CALIBRATION
Optical Depth at Camborne
Optical Depth at Camborne
Optical Depth at Camborne
Optical Depth at Camborne
FUTURE WORK IDEAS
Future Work• Assessment of Line Intensities
– Camborne • Completed; retrieved “a” are consistent with previous work
– Jungfraujoch• Work has began; will be fairly quick with confirmed water profiles. Initial results are
quite promising
– Write up• Already began writing this up as a paper....
• 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• No Work Yet