1. Institut für Physik der Atmosphäre ETReC 2007 Hans Volkert (for George Craig) DLR-Institut für Physik der Atmosphäre

2. Institut für Physik der Atmosphäre Folie 2 > Vortrag > Autor ETReC 2007 Strategy Identify sensitive regions, i.e. optimal locations for supplementary observations for convective events in two European regions 1. COPS (guidance for targeted observation missions) 2. Mediterranean (preparation for future HYMEX campaign) Dispatch targeted observations 1. EUCOS additional conventional observations on 6 days – Radiosonde: 6 hourly ascents at ~10 locations – AMDAR: T, p sensors on commercial aircraft giving ~4000 extra data points 2. DLR Falcon flights to sensitive regions – wind and water vapour Lidars, dropsonde

3. Institut für Physik der Atmosphäre Folie 3 > Vortrag > Autor Sensitive regions: Observation 12UTC 8.7.2007 (Sunday) Verification 12UTC 9.7.2007 (Monday) MeteoFrance ETKF (Philippe Arbogast) MeteoFrance Adjoint (Alexis Doerenbecher) ECMWF Singular Vectors (Andy Lawrence) Sensitive Regions 1. ECMWF - moist singular vectors (SVs) in the IFS modeling system 2. Météo France - Ensemble Transform Kalman Filter (ETKF) based on the Arpège ensemble prediction system (PEARP) 3. Météo France - adjoint method using dry physics, using the Arpege modeling system 4. Météo France - adjoint method using moist physics, using the Arpege modeling system 5. University of the Balearic Islands - adjoint method using moist physics, using the MM5 modeling system

4. Institut für Physik der Atmosphäre Folie 4 > Vortrag > Autor Targeted Observations ETReC 2007 Verification Regions COPS D-PHASE MEDEX HYMEX EUCOS Additional Radiosondes AMDAR T,P,q u,v,w,TAS Dropsondes: u,v, P,T,q Conical scan: u, v components Vertical pointing : w component DIAL: H 2 O, Aerosols Falcon Payload during COPS DWL

5. Institut für Physik der Atmosphäre Folie 5 > Vortrag > Autor ETReC 2007 Upstream Observation Periods (UOP) UOPDateAMDARRadiosondeDLR Falcon 126 June 2007XX 2 3 July 2007XX 3 8 July 2007XXX 415 July 2007XX 519 July 2007XXX 629 July 2007XX 7 1 Aug 2007XX

6. Institut für Physik der Atmosphäre Folie 6 > Vortrag > Autor Planned Work 1. Data denial studies to determine relative importance of different sensitive region forecasts (ECMWF) - in progress 2. Case study analysis to identify physical machanisms for sensitivity and observation impact (DLR) - DFG project funded 3. Data impact studies to assess impact of additional observations 4.....