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© Crown copyright Met Office Initial assessment of ARIES continuum measurements Stuart Newman Imperial College, 16 December 2008
© Crown copyright Met Office B400 flight (18 Sept 2008) Best clear sky conditions encountered – no need for cloud hole hunting ARIES and TAFTS seemed to operate well Reasonably stable atmospheric structure High aerosol loading but IR measurements insensitive to this
© Crown copyright Met Office Preliminary data analysis FL340 (250 hPa)FL290 (314 hPa) FL145 (583 hPa) Select only nadir views over ocean to north of Camborne Use dropsonde profile launched from FL340 in line-by-line simulations SST from low level (100 ft) ARIES data
© Crown copyright Met Office Longwave IR (self continuum) spread ~ 0.6K
© Crown copyright Met Office SST variability Northern data segment used in simulations >1K
© Crown copyright Met Office
Strong water vapour band
© Crown copyright Met Office Continuum MT_CKD too strong?
© Crown copyright Met Office NorthSouth ARIES retrieval (B400)
© Crown copyright Met Office Summary and future work Preliminary analysis of ARIES nadir data over ocean (zenith data may be subject to calibration biases) B400 case: small brightness temperature biases in (self continuum dominated) longwave window; larger biases in (foreign broadened) strong midwave band Future work: estimate uncertainties in atmospheric profiles and ARIES radiances Include collocated IASI radiances from MetOp overpass in data analysis Corroborate results by comparing with other flight days Intercompare results from ARIES, TAFTS and NPL FTS
© Crown copyright Met Office Questions and answers
© Crown copyright Met Office Met Office flying during DIAMET: EXT&MIX Richard Cotton.
© Crown copyright Met Office A New Radiative Time- stepping Scheme A short description of the time-stepping scheme test Peter Hill, 19 Feb 2008.
TAFTS: Atmospheric Profile Uncertainty and Continuum Contribution Ralph Beeby Paul Green, Juliet Pickering 29 th September 2010.
TAFTS: Comparing Uncertainties in Atmospheric Profiles with the Water Vapour Continuum Ralph Beeby, Paul Green, Juliet Pickering, John Harries.
TAFTS: CAVIAR field data from Camborne 2008 Ralph Beeby, Paul Green, Juliet Pickering, John Harries.
CAVIAR Field Campaign Meeting, Imperial College 29/3/11 TAFTS: Water Vapour Continuum Data from the 2008 CAVIAR Field Campaign Ralph Beeby, Paul Green,
1 Igor Ptashnik (Reading) 29 April, 2010 Field CAVIAR meeting, Met-Office MTCKD-2.5 Date: January 2010 MT_CKD_2.5 continuum modifications included in this.
1 Annual CAVIAR meeting, , Imperial College London Water vapour continuum absorption in near- and middle-IR: Recent investigations Department.
© Crown copyright Met Office CAVIAR Update to Met Office work on field campaigns Stuart Newman Imperial College, 29 March 2011.
© Crown copyright Met Office Overview of Camborne field campaign Stuart Newman Imperial College, 16 December 2008.
© Crown copyright Met Office CAVIAR field campaigns update Stuart Newman UCL, 13 May 2010.
© Crown copyright Met Office CAVIAR field campaigns meeting Stuart Newman Exeter, 29 April 2010.
© Crown copyright Met Office Update on CAVIAR field experiments Stuart Newman NPL, 29 September 2010.
© Crown copyright Met Office Mid-infrared observations of the water vapour continuum from CAVIAR field campaigns Stuart Newman and co-workers Coseners.
The impact of water vapour continuum on absorption of solar radiation – a preliminary analysis of the impact of the new RAL measurements Julie Chenery,
© University of Reading Department of Meteorology Effect of variation of water vapour amount on derived TOA solar spectrum Kaah.
CAVIAR – Continuum Absorption by Visible and Infrared Radiation and its Atmospheric Relevance PI: Keith Shine Department of Meteorology, University of.
16 December 2008 CAVIAR Annual Meeting Claudine Chen and John E Harries Claudine Chen and John E Harries Space and Atmospheric Physics group, Blackett.
Far-infrared Spectral Radiance Observations of the Arctic Atmosphere Neil Humpage, Paul Green: Imperial College London Dave D. Turner: University of Wisconsin.
Overview of Camborne, UK and Jungfraujoch, Switzerland Field Campaigns CAVIAR Annual Meeting 15 th Dec 2009, Abingdon Marc Coleman, Tom Gardiner, Nigel.
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