OA18 Heterogeneous and homogeneous chemistry of reactive halogen compounds in the lower troposphere (co-sponsored by ST) I

Convener: Platt, U.
Co-Convener(s): Moortgat, G.K.
Thursday, 23 April 1998
Lecture Room: CLIO

Chairperson: Herrmann, H.

Field measurements

• 14:00 BARRIE, L.A.
  An overview of observations related to polar tropospheric ozone depletion chemistry (Solicited Paper)
• 14:30 ARNOLD, T.; MARTINEZ, M.; PERNER, D.; CROWLEY, J.N.
  Chlorine and bromine detectoin during arctic ozone depletion events at NY Alesund
• 14:50 WITTROCK, F.; RICHTER, A.; BURROWS, J.P.
  DOAS UV/visible measurements at Ny-Alesund 1995-1997: retrieval of tropospheric constituents
• 15:10 LEHRER, E.; KÖNIG-LANGLO, G.; LANGENDÖRFER, U.; MINIKIN, A.; TUCKERMANN, M.; UNOLD, W.; WAGENBACH, D.; PLATT, U.
  Tropospheric ozone depletion and related halogen chemistry at polar regions
• 15:30 RAMACHER, B.; KOPPMANN, R.; RUDOLPH, J.
  A novel approach to derive integrated halogen atom concentrations from changes in VOC pattern during tropospheric ozone depletions
• 15:50 ARIYA, P.A.; HOPPER, J.F.; HARRIS, G.W.
  C2-C7 hydrocarbon concentration in Arctic snowpack interstitial air

16:10 Poster summaries of 3 min per summary

• STURGES, W.T.; BAKER, J.M.; SUGIER, J.; SUNNENBERG, G.; CARPENTER, L.; LOVETT, A.; PENKETT, S.A.
  Emission of reactive organochlorines and organobromines from coastal macrophytes
• MIHELE, C.M.; IMPEY, G.; BARRIE, L.; ANLAUF, K.; SHEPSON, P.B.; HASTIE, D.R.
  Bromine radicals and photolysable halogen compounds during polar sunrise at Alert, Canada
• AMMANN, M.; WACHSMUTH, M.; BALTENSPERGER, U.; JOST, D.T.; GÄGGELER, H.W.
  A new laboratory approach to heterogeneous halogen chemistry
• BEHR, P.; BREIL, M.; ZELLNER, R.
  Laboratory studies of the uptake of atmospheric trace gases on solid surfaces
• ADAMS, J.; FICKERT, S.; MOORTGAT, G.K.; CROWLEY, J.N.
  Activation of halogens via HOBr in the marine boundary layer - a laboratory study
• BAUER, D.; INGHAM, T.; CAMPUZANO-JOST, P.; CARL, S.A.; MOORTGAT, G.K.; CROWLEY, J.N.
  Gas-phase kinetics and photochemistry of bromine and iodine containing species in the marine boundary layer
• BEDJANIAN, YU.; POULET, G.; LE BRAS, G.
  Reactions of bromine atoms with alkenes: kinetics and mechanisms at low pressure
• MÖSSINGER, J.; SHALLCROSS, D.E.; COX, R.A.
  UV-visible absorption cross-sections and atmospheric lifetimes of CH2Br2, Ch2I2 and Ch2BrI
• FLEISCHMANN, O.C.; ORPHAL, J.; BURROWS, J.P.
  Spectroscopic and kinetical investigation on BRO applying static and time resolved rapid scan FT-UV spectroscopy
• BRÖSKE, R.; ZABLE, F.
  Spectroscopic and kinetic properties of XNO2 (X = Br, I)
• SPIETZ, P.; HIMMELMANN, S.; GROSS, U.; ORPHAL, J.; BURROWS, J.P.
  Study of iodine oxides and iodine ozone chemistry using flash photolysis and time resolved absorption spectroscopy
• CANOSA-MAS, C.E.; FLUGGE, M.; SHAH, D.; VIPOND, A.; WAYNE, R.P.
  Kinetic studies of the reactions of the IO radical with itself, O(3P) and HO2
• CANOSA-MAS, C.E.; COTTER, E.; STEWART, D.; THOMPSON, K.; WAYNE, R.P.
  Laboratory kinetic studies of the reactions of Cl atoms with species of biogenic origin
• NOTARIO, A.; BEDJANIAN, Y.; MELLOUKI, A.; LAVERDET, G.; LE BRAS, G.
  The C1 atom oxidation of isoprene studied in the laboratory
• BERHO, F.; RAYEZ, M.-T.; LESCLAUX, R.; VILLENAVE, E.
  The reaction of atomic chlorine with benzene
• KÖLM, J.; NELANDER, B.; SCHREMS, O.; BEICHERT, P.
  Low temperature FTIR-studies and ab-initio calculations of BrOBr and BrBrO
• LAZAROU, Y.G.; KAMBANIS, K.G.; PAPAGIANNAKOPOULOS, P.
  Theoretical ab-initio calculations of the structure and stability of halogen atoms adducts with alkyl halides

17:00 END OF PART I
 

OA18 Heterogeneous and homogeneous chemistry of reactive halogen compounds in the lower troposphere (co-sponsored by ST) - Poster Session

Convener: Platt, U.
Co-Convener(s): Moortgat, G.K.
Display Time: Monday, 09:00 - Friday, 13:00
Authors in Attendance: Thursday, 17:00 - 19:00
Poster Area: LES MUSES

• OA340 STURGES, W.T.; BAKER, J.M.; SUGIER, J.; SUNNENBERG, G.; CARPENTER, L.; LOVETT, A.; PENKETT, S.A.
  Emission of reactive organochlorines and organobromines from coastal macrophytes
• OA341 MIHELE, C.M.; IMPEY, G.; BARRIE, L.; ANLAUF, K.; SHEPSON, P.B.; HASTIE, D.R.
  Bromine radicals and photolysable halogen compounds during polar sunrise at Alert, Canada
• OA342 AMMANN, M.; WACHSMUTH, M.; BALTENSPERGER, U.; JOST, D.T.; GÄGGELER, H.W.
  A new laboratory approach to heterogeneous halogen chemistry
• OA343 BEHR, P.; BREIL, M.; ZELLNER, R.
  Laboratory studies of the uptake of atmospheric trace gases on solid surfaces
• OA344 ADAMS, J.; FICKERT, S.; MOORTGAT, G.K.; CROWLEY, J.N.
  Activation of halogens via HOBr in the marine boundary layer - a laboratory study
• OA345 BAUER, D.; INGHAM, T.; CAMPUZANO-JOST, P.; CARL, S.A.; MOORTGAT, G.K.; CROWLEY, J.N.
  Gas-phase kinetics and photochemistry of bromine and iodine containing species in the marine boundary layer
• OA346 BEDJANIAN, YU.; POULET, G.; LE BRAS, G.
  Reactions of bromine atoms with alkenes: kinetics and mechanisms at low pressure
• OA347 MÖSSINGER, J.; SHALLCROSS, D.E.; COX, R.A.
  UV-visible absorption cross-sections and atmospheric lifetimes of CH2Br2, Ch2I2 and Ch2BrI
• OA348 FLEISCHMANN, O.C.; ORPHAL, J.; BURROWS, J.P.
  Spectroscopic and kinetical investigation on BRO applying static and time resolved rapid scan FT-UV spectroscopy
• OA349 BRÖSKE, R.; ZABLE, F.
  Spectroscopic and kinetic properties of XNO2 (X = Br, I)
• OA350 SPIETZ, P.; HIMMELMANN, S.; GROSS, U.; ORPHAL, J.; BURROWS, J.P.
  Study of iodine oxides and iodine ozone chemistry using flash photolysis and time resolved absorption spectroscopy
• OA351 CANOSA-MAS, C.E.; FLUGGE, M.; SHAH, D.; VIPOND, A.; WAYNE, R.P.
  Kinetic studies of the reactions of the IO radical with itself, O(3P) and HO2
• OA352 CANOSA-MAS, C.E.; COTTER, E.; STEWART, D.; THOMPSON, K.; WAYNE, R.P.
  Laboratory kinetic studies of the reactions of Cl atoms with species of biogenic origin
• OA353 NOTARIO, A.; BEDJANIAN, Y.; MELLOUKI, A.; LAVERDET, G.; LE BRAS, G.
  The C1 atom oxidation of isoprene studied in the laboratory
• OA354 BERHO, F.; RAYEZ, M.-T.; LESCLAUX, R.; VILLENAVE, E.
  The reaction of atomic chlorine with benzene
• OA355 KÖLM, J.; NELANDER, B.; SCHREMS, O.; BEICHERT, P.
  Low temperature FTIR-studies and ab-initio calculations of BrOBr and BrBrO
• OA356 LAZAROU, Y.G.; KAMBANIS, K.G.; PAPAGIANNAKOPOULOS, P.
  Theoretical ab-initio calculations of the structure and stability of halogen atoms adducts with alkyl halides
   

OA18 Heterogeneous and homogeneous chemistry of reactive halogen compounds in the lower troposphere (co-sponsored by ST) II

Convener: Platt, U.
Co-Convener(s): Moortgat, G.K.
Friday, 24 April 1998
Lecture Room: CLIO

Chairperson: N.N.

• 08:30 WAGNER, T.; PFEILSTICKER, K.; PLATT, U.
  GOME observation of enhanced tropospheric BrO concentration in the polar spring
• 08:50 RICHTER, A.; WITTROCK, F.; BURROWS, J.P.
  GOME measurements of tropospheric BrO in northern hemispheric spring
• 09:10 ALICKE, B.; HEBESTREIT, K.; PLATT, U.; CARPENTER, L.J.; STURGES, W.T.
  Measurements of tropospheric iodine oxide in the mid-latitudes
• 09:30 CARPENTER, L.J.; STURGES, W.T.; LISS, P.S.; PENKETT, S.A.; ALICKE, B.; HEBESTREIT, K.; PLATT, U.
  Observations of alkyl iodides and bromides at Mace Heat: links to macroalgal emissions and io formation
• 09:50 HEBESTREIT, K.; STUTZ, J.; LURIA, M.; PELEG, M.; MATVEIV, V.; ROZEN, D.; PLATT, U.
  First DOAS measurements of tropospheric BrO at mid latitudes: the Dead Sea Valley as a natural laboratory

10:10 BREAK

Chairperson: Seisel, S.

Modelling of halogen activation

• 10:30 SANDER, R.; VON GLASOW, R.; CRUTZEN, P.J.; VOGT, R.
  Modelling the chemistry of ozone and halogen compounds in the marine boundary layer (Solicited Paper)
• 11:00 VOGT, R.; SANDER, R.; CRUTZEN, P.J.
  The chemistry of iodine in the marine boundary layer
• 11:20 MCFIGGANS, G.; ALLAN, B.; COE, H.; PLANE, J.M.C.; CARPENTER, L.; O'DOWD, C.D.; STURGES, W.O.
  Observations and modelling studies of reactive iodine species in the marine boundary layer
• 11:40 STUTZ, J.; HEBESTREIT, K.; ALICKE, B.; PLATT, U.
  Chemistry of halogen oxides in the troposphere: comparison of model calculations with recent field data
• 12:00 EVANS, M.J.; LAW, K.S.; SHALLCROSS, D.E.; BASSFORD, M.; SPAIN, T.G.; SIMMONDS, P.; PYLE, J.A.
  Modelling of low ozone measured at the West Coast of Ireland

Heterogeneous processes

• 12:20 CROWLEY, J.N.; FICKERT, S.; ADAMS, J.; BAUER, D.; INGHAM, T.
  Reactive bromine in the marine boundary layer: laboratory studies of gas-phase and heterogeneous processes (Solicited Paper)
• 12:50 OUM, K.W.; LAKIN, M.J.; DEHANN, D.O.; BRAUERS, T.; STUTZ, J.; FINLAYSON-PITTS, B.J.
  Formation of halogens from the heterogeneous reaction of sea salt

13:10 LUNCH

Chairperson: N.N.

• 14:00 SCHWEITZER, F.; GEORGE, CH.; MIRABEL, PH.
  Multiphase phase chemistry of XNO2 and HOBr in relation to tropospheric halogen activation
• 14:20 SEISEL, S.; CALOZ, F.; FENTER, F.F.; AGUZZI, A.; MOCHIDA, M.; ROSSI, M.J.
  Heterogeneous reactions of halogen containing trace gases on NaCI and KBr salt
• 14:40 CHAIX, L.; ROSSI, M.J.
  Kinetics of the uptake of D2O and BrONO2 on ice
• 15:00 GERSHENZON, M.YU.; FEDOTOV, N.G.; ILAEIN, S.D.; APARINA, E.V.; ZELENOV, V.V.; GERSHENZON, YU.M.
  Mechanism of NO3 uptake by solid NaCl

15:20 BREAK

Chairperson: N.N.

Heterogeneous and homogeneous Processes

• 15:40 HERMMANN, H.; REESE, A.; WICKTOR, F.; ERVENS, B.
  Mechanistic considerations for tropospheric halogen activation in the marine aerosol
• 16:00 BEHNKE, W.; ELEND, M.; KRÜGER, U.; ZETZSCH, C.
  Which components of the sea salt aerosol promote the Br-catalysed production of halogenated radicals?
• 16:20 DAVIES, J.A.; COX, R.A.
  Kinetics of the heterogeneous reaction of HNO3 with NaCl: effect of water vapour
• 16:40 BLOSS, W.J.; ROWLEY, D.M.; COX, R.A.; JONES, R.L.
  Kinetic and photochemical studies of iodine oxide chemistry
• 17:00 ROWLEY, D.M.; MOSSINGER, J.; COX, R.A.
  The UV absorption cross-section and atmospheric photolysis rate of HOI
• 17:20 KAMBANIS, K.G.; LAZAROU, Y.G.; PAPAGIANNAKOPOULOS, P.
  Reaction rate and chemical mechanism for the gas phase reactions of Cl atoms with CH2ICl and CH2I2
• 17:40 Concluding remarks

18:00 END OF SESSION