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Progress of FTIR activities

Progress of FTIR activities. T.Warneke, K. Petersen. Deliverables. D4.1 Report on common measurement strategy (month 8) D4.2 For all FTIR stations: preliminary historical time series of total column abundances and vertical profiles for CH4 and N2O (month12)

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Progress of FTIR activities

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  1. Progress of FTIR activities T.Warneke, K. Petersen

  2. Deliverables D4.1 Report on common measurement strategy(month 8) D4.2 For all FTIR stations: preliminary historical time series of total column abundances and vertical profiles for CH4 and N2O (month12) D4.3 Assessment report of associated retrieval error budget (month 20) D4.4. Report on optimized retrieval strategy (month 20) D4.5 For all FTIR stations: revised historical time series of total column abundances and vertical profiles for CH4 and N2O (month 24) D4.6. Preliminary results on the validation of the satellite data with FTIR observations from all sites (month 24) D4.7 For all FTIR stations: time series of total column abundances and vertical profiles for CH4 and N2O, extending to the last year of the project (month 36) D4.8. Validation of the satellite data with FTIR observations from all sites (month 36)

  3. Next steps towards a better CH4 retrieval proposed during the 6-months subgroup meeting in May 2007 • Searching for better micro windows (BIRA-IASB) • Testing line parameters measured within UFTIR (ULg) • Laboratory measurements of methane line parameters for the • microwindows of interest (UniKarl-IMK-ASF, UniHB) • Comparison of ECMWF and NCEP data (all FTIR groups)

  4. Todays talks related to the ground-based FTIR measurements • Laboratory measurements of relevant spectral lines for CH4 • (I. Kramer, UniKarl-IMK-ASF) • Intercomparison of different microwindows for the CH4 retrieval • (P. Duchatelet, ULg) • Retrieval of CH4 isotopologues from ground-based solar spectra • (P. Duchatelet, ULg) • Comparison of NCEP and ECMWF temperatures at the Reunion Island, and the impact on CH4 retrievals • (M. de Mazière, BIRA-IASB)

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