OA13 Cyclogenesis and fronts: FASTEX I

Convener: Chalon, J.-P.
Co-Convener(s): Thorpe, A.J.
Wednesday, 22 April 1998
Lecture Room: CLIO

Chairperson: Snyder

• 14:00 JOLY, A.; BESSEMOULIN, P.; BROWNING, K.A.; CAMMAS, J.P.; CHALON, J.P.; CLOUGH, S.A.; EMANUEL, K.A.; GALL, R.; HILDEBRAND, P.H.; JORGENSEN, D.; LANGLAND, R.H.; LEMAITRE, Y.; MASCART, P.; MOORE, J.A.; PERSSON, P.O.G.; SHAPIRO, M.A.; SNYDER, C.; TOTH, Z.; WAKIMOTO, R.M.
  The Fronts and Atlantic Storm-Track Experiment (FASTEX): an overview of the field phase (Solicited Paper)
• 14:30 BADGER, J.; HOSKINS, B.J.
  Mechanisms for mid-latitude cyclone development
• 14:45 SHAPIRO, M.A.; WERNLI, H.
  Upstream baroclinic development of secondary frontal-wave cyclones: idealized and observed
• 15:00 MALARDEL, S.; ARBOGAST, P.; JOLY, A.
  Interpretation of mid-latitude cyclogenesis using a linear framework
• 15:15 RAVETTA, F.; ANCELLET, G.; CAMMAS, J.-P.
  Two-dimensional airborne ozone measurements during FASTEX
• 15:30 FEHLMANN, R.; DAVIES, H.C.
  Role of salient PV-elements in an event of frontal-wave cyclogenesis
• 15:45 THORNCROFT, C.; JONES, S.
  The extratropical transformation of Atlantic hurricanes in 1995
• 16:00 THORPE, A.J.
  A review of theories of frontal-scale dynamics (Solicited Paper) *
• 16:30 CAMMAS, J.-P.; POUPONNEAU, B.; DESROZIERS, G.; SANTURETTE, P.; JOLY, A.
  Overview of the life cycle of a FASTEX cyclone: IOP 17
• 16:45 END OF PART I
   

OA13 Cyclogenesis and fronts: FASTEX II

Convener: Chalon, J.-P.
Co-Convener(s): Thorpe, A.J.
Thursday, 23 April 1998
Lecture Room: CLIO

Chairperson: Thorpe, A.J.

• 08:30 BLUMEN, W.
  The frontal width problem
• 08:45 CHABOUREAU, J.-P.; THORPE, A.J.
  Role of frontogenesis on frontal wave development in FASTEX
• 09:00 PARKER, D.
  A secondary frontal wave in negative strain
• 09:15 HEWSON, T.; RENFREW, I.; BISHOP, C.
  Frontal wave development in numerical model forecasts
• 09:30 YAMAZAKI, Y.H.; PELTIER, W.R.
  Sub-synoptic scale instability along the jet stream
• 09:45 BRYAN, G.H.; CHARNEY, J.J.; FRITSCH, J.M.
  Discrete frontal propagation induced by convection
• 10:00 CHARNEY, J.J.; FRITSCH, J.M.
  Discrete frontal propagation in a non-convective environment
• 10:15 JUCKES, M.N.
  The ageostrophic circulation in baroclinic waves growing on frontal temperature gradients
• 10:30 GRIFFITHS, M.; THORPE, A.J.; BROWNING, K.A.
  The role of the tropopause in destabilizing the atmosphere

10:45 BREAK

Chairperson: Hildebrandt

• 11:00 SHAPIRO, M.A.
  Review of ideas concerning mesoscale structure within extra-tropical cyclones (Solicited Paper) *
• 11:30 MALLET, I.; CAMMAS, J.-P.; MASCART, P.
  Mesoscale modelling of a FASTEX cyclone: sensitivity to physical processes during early stages of development
• 11:45 CLOUGH, S.; ROBERTS, N.; LEAN, H.
  Comparison of mesoscale dynamical structures from FASTEX dropsoundings with forecast model fields
• 12:00 BOUNIOL, D.; LEMAITRE, Y.; MONTMERLE, T.
  Three dimensional study of dynamical and thermodynamical fields deduced from airborne Doppler radar and dropsonde data
• 12:15 MOINE, M.-P.; ROUX, F.
  Dynamic and thermodynamic structure of the mid-latitude cyclone observed on 19 February 1997 during FASTEX
• 12:30 LAMBERT, D.; CAMMAS, J.-P.; MASCART, P.
  Structure and evolution of the boundary layer during the FASTEX IOP 18
• 12:45 LEMAITRE, Y.; SCIALOM, G.; BOUNIOL, D.
  Multiscale processes involved in the mature phase of a "bomb like" deepening
• 13:00 END OF SESSION
   

OA13 Cyclogenesis and fronts: FASTEX - Poster Session

Convener: Chalon, J.-P.
Co-Convener(s): Thorpe, A.J.
Display Time: Monday, 09:00 - Friday, 13:00
Authors in Attendance: Thursday, 17:00 - 19:00
Poster Area: LES MUSES

Chairperson: Mascart, P.

• OA276 JAUBERT, G.; PIRIOU, C.
  The FASTEX database: a large archive for north Atlantic cyclones studies
• OA277 MALLET, I.; CAMMAS, J.-P.; BAEHR, C.
  Role of the environmental flow and contribution of a decaying low on the development of a FASTEX cylone (IOP17)
• OA278 SZÖCS, H.L.; KOSA-KISS, A.
  New observational proofs for short-therm variations of formations of lower troposphere assigned to great sunspots as contributions to the cyclogenesis
• OA279 MARQUET, P.
  Application of exergy theory to local atmospheric energetics: diagnostics for a FASTEX event
• OA280 BIRKETT, H.R.; THORPE, A.J.
  Reduced upper-tropospheric potential vorticity
• OA281 DONNADILLE, J.; CAMMAS, J.-P.; MASCART, P.
  Upper level dynamic of a FASTEX cyclone: IOP 18
• OA282 FOURRIE, N.; CLAUD, C.; JOLY, A.; CAMMAS, J.-P.
  Identification of tropopause-level thermal anomalies from TOVS observations
• OA283 JUCKES, M.N.
  How do cyclones affect the large scale mean height of the tropopause?
• OA284 CLOUGH, S.; LEAN, H.
  Observations and simulations of a developing frontal wave during FASTEX IOP 16
• OA285 BROWNING, K.A.; ROBERTS, N.M.
  Mesoscale analysis of arc rainbands in a dry slot
• OA286 HILDEBRAND, P.H.
  Aircraft observations of frontal circulations and structures in FASTEX
• OA287 SCIALOM, G.; LEMAITRE, Y.; PROTAT, A.
  Overview of the mescoscale circulation and vorticity within systems sampled during FASTEX
• OA288 BERGOT, T.; DESROZIERS, G.; POUPONNEAU, B.; JOLY, A.
  Adjiont-based targeted observations during FASTEX: impact and feasibility studies
• OA289 MONTANI, A.; THORPE, A.J.
  Use of ECMWF singular vectors for targeting during FASTEX
• OA290 SZUNYOGH, I.; TOTH, Z.; BISHOP, C.; EMANUEL, K.; SNYDER, C.; WOOLLEN, J.; WU, W.-S.; MARCHOK, T.; MORSS, R.
  Ensemble-based targeted observations during FASTEX
• OA291 SNYDER, C.; TRIER, S.; MORSS, R.
  Dynamics and statistics of forecasts errors in a quasi-geostrophic model
• OA292 ARBOGAST, P.; JOLY, A.
  Precursors identification of FASTEX IOP17 cyclogenesis using potential vorticity inversion concept