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TM5 stratosphere research

TM5 stratosphere research. chemistry gas phase: implemented (BB) photolysis: debugging (M. van Weele) heterogeneous chemistry: implementing stage (BB) ozone-tracer (T. van Noije, J. de Laat) SF6-CO2 (H. Boenisch) PSC algorithm (M. van den Broek, J. Williams)

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TM5 stratosphere research

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  1. TM5 stratosphere research • chemistry • gas phase: implemented (BB) • photolysis: debugging (M. van Weele) • heterogeneous chemistry: implementing stage (BB) • ozone-tracer (T. van Noije, J. de Laat) • SF6-CO2 (H. Boenisch) • PSC algorithm (M. van den Broek, J. Williams) • kzz online: implemented (BB, M. van Weele) • flexible vertical levels: implemented (BB, M. van Weele) • second-moments advection: implemented (BB) • pre-processing: pv - theta - equivalent latitude fields (A. Segers and BB) • TM5 - ECHAM coupling (F. Alkemade, M. Sigmond)

  2. Stratospheric chemistry • both tropospheric (cbm4 up to c3 nmhc) and stratospheric chemistry, including N and H radical chemistry (upper stratosphere) • Prescribed ground constraints of CFCs and N2O, using polynomial fits from CMDL data • no SO2 chemistry, SO4 tropospheric fields prescribed (monthly mean). Prescribed stratospheric SAD data from SAGE-II and III

  3. TM5 - ECHAM coupling • TM5 pre-processing suitable to use ECHAM5 meteorological fields. First results: december 2003 (F. Alkemade) • Use of TM5 tracer fields in ECHAM5 (M. Sigmond, start: january 2004) • To be investigated: sensitivity towards TM5 tracer interpolation; ECHAM meteorology update frequency

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