Transcript
Page 1: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORMIdeas for the Future

B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker,

S. Tschannett, S. Vogt, R. Werner

Page 2: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

The Collection Process

• Collection worked very well – many ideas were found• Some are out of scale, some are really concrete!• What shall we do with all these ideas? • How to decide which ideas should be realised?

Thank you all for your contribution to the brainstorming

Page 3: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Guidelines to this workpackage

• Brainstorming – everything is possible• Ideas occurring during the presentation are

very welcome – open discussion• First classification should be no limit• The ones who had the ideas, please

contribute to the discussion• Let‘s discuss:

(First classification for an Overview)

Page 4: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Forecasting – NWP Models and Applications

• Resolution NWP-model – resolution observing system • Investigate foehn and its small scale effects with ultra high

resolution models – see examples by Zängl• Model independent analyses as input for NWP-Models instead of /

as a supplement to single station data assimilation in NWP models• How to include mountain top stations in high resolution NWP-

models: foehn as an investigation vehicle

• Air mass index – coupled with concentration of Ozone,…?• Transition region to alpine pumping – extract this mesoscale issue

out of NWP-model profiles

Page 5: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Phenomena

• Meandering of Foehn• asymetric penetration of foehn in valleys – also in connection with a

field experiment in parts (ultra high concentration of in-situ and remote sensingequipment) of the Reuss- and Rhine Valley – also for validation of NWP models

• Topography forces synoptic-scale into a corset typical patterns, which can switch back and forth – switch-situation / hysteresis effects / prehistory

• Waves in Meso-β-scale – cold pool effects north of the Alps• Blocking layers vertical, horizontal, tilted – describe its drifting in the

valley• Investigation of meteorological condition leading to critical

dispersion conditions (inversions, strong dynamical or convective wind shear) and propagation of pollutants

Page 6: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Phenomena II

• Foehn and aerosol – long range transport, source areas, impact on air quality, vertical exchange between different layers

• Understanding of aerosol processes in alpine valleys – daily changes and processes in the scale: horizontal 25-150km, vertical 50 – 2500m

• Vorticity banner - foehn north side of the alps: its connection (fluctuating Foehn-velocity) and appearance

• Wave patterns on the surface / 4D• Cold air pool – movement – breakup • Contribution of side valeys

Page 7: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Phenomena III

• Relevance of an inversion over the Alps in connection with foehn (critical velocity, hydraulic theory)

• Not every cold front has a (shallow) foehn phase in advance – why not?

• Condition leading to foehn or cold front domination

Page 8: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Future observation networks

• Station distribution: optimizing with 4D-VAR assimilation / use models to find sensitive places – network design / adaptive observations

• Observing system – representativity error• Stations at sensitive places enough information for NWP – model forecast• Boundary layer (also boundary between foehn and cold air) sampling by

• transect of tethered balloon• Modell aircraft (MAGPIE)• Kites to sample rotors• Moving with the cold air boundary

• Proposal for a new data format: every data to be saved with all its coordinates (x,y,z,t) + quality flags to prevent errors (wrong units, time,…)

• 4D radiosonde network for foehn investigation, Rass 3D – Upstream – Cold Pool Sampling

• Further development in remote sensing techniques (lidar, wind profiler) for foehn research

• Additional and complementary information to be extracted from satellite measurements in connection with foehn

Page 9: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

General Issues

• Project to investigate systematically foehn-sensitivity using the latest ultra high resolution models in the alpine valley

• Theoretical models – phenomenons – observing systems• Verification/Deepening of the understanding of the solenoidal theory

Page 10: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Review and Outlook

• What have we learnt of MAP – Synthesis paper• MAP-Data: extend usage and knowledge of the MAP-Database

from 2% to 20%• Technical paper on data collection during MAP and data handling at

the MDC• How has MAP-FORM helped to make progress concerning Foehn

prediction? Any classification numbers available?

• MAP-Demonstrationproject: how can foehn forecasts be optimized? (wind warnings for lakes,...), how can NWP-models be optimzied (aLMo 2.4km)

Page 11: FORM Ideas for the Future B. Chimani, B. Dürr, M. Furger, T. Gutermann, C. Häberli, E. Scharnhorst, G. Seiz, R. Steinacker, S. Tschannett, S. Vogt, R

FORM Meeting Bad Ragaz November 2005 3.-4.11.2005

Review and Outlook II

• MAP-D-Phase:– Foehn-warnings-procedures

• Rhine valley / Lake of constance – Reuss valley• Valais / Hasli-valley-Brienz-Lungern• Kleine Scheidegg• Inn valley / Innsbruck

– Prepare foehn flight pattern – asymetric penetration of foehn valleys

– Realtime verification of NWP-models (already partly available)

– Compilation of common interests for foehn/storm topics

– Organise foehn flights

• Global change possible to be detected in data of a new experiment in comparison to MAP data – foehn statistics

• A new research institution concentrating on foehn• Alpine Mesoscale Experiment – ALMEX


Recommended