New WAFC Gridded Products = New Visualisation Opportunities

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New WAFC Gridded Products New Visualisation
Opportunities
Jozef Matula
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IBLs cooperation with WAFC trials

• We committed to
• Evaluation of UK Met Office experimental fields.
• SADIS GRIB2 dissemination trial.
• Long Haul charts.
• Monitoring of SADIS reception quality.
• This presentation
• Experiments with visualisation of the WAFC
  experimental fields.
• Some experience and feedback gained.

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NEW VISUALISATION OPPORTUNITIES
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Long Haul Chart Products
Produced byIBL Visual Weather and IBL Aero
Weather
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New Gridded Products Visualisation
Single parameter visualisations dont provide any
real added value however they are easily
interpretable.
Produced byIBL Visual Weather and IBL Aero
Weather
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New Parameters Visualisation Challenge
Proposed gridded information cannot be resonably
presented in geospatial context. Taking also
vertical extents into account, there will too
much information available in any layered view.
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Opposite Minimalistic Approach
Applying a business logic in the workstation may
create added value product which can be more
easily interpreted. However this naturally hides
some details but can copes better vertical extent
(as the present SIGWX charts).
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Cross-section Visualisation (1)
Thisprovides easy to interpret picturebut
hidesthe surrounding information.
Produced byIBL Visual Weather and IBL Aero
Weather
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Cross-section Visualisation (2)
You cant fax this without losing the quality!
Produced byIBL Visual Weather and IBL Aero
Weather
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CONCLUSIONS FEEDBACK
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SIGWX BUFR vs. New gridded products (1)

• Technical experience
• Both are WMO proprietary formats.
• SIGWX is presently created from higher resolution
  NWP grid than whatever is/will be in WAFC
  distribution.
• New gridded products will require more business
  logic to be implemented on the workstation.
• SIGWX production automation could allow
  coexistence of feature objects (BUFR/XML/GML?)
• Missing values are encoded with special values
  such as 0m CB base height.
• 3h forecast step will allow better interpolation.

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SIGWX BUFR vs. New gridded products (2)

• User experience
• Too much information and also...
• ...SIGWX captured the vertical extent
• Missing key how to use and interpret the data.
  Especially to avoid ambiguous or misleading
  interpretations.
• Use of cross-section products increases demand
  for more precise specification of flight route
  what is not always possible.
• Availability of wider forecasts range and finer
  step may allow more accurate and wider end-user
  products than fixed 24h SIGWX.
  

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Synergy of features vs. grids
Feature objects cannot be simply interpolated in
time this would require change in their data
model.
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• Thank you for your attention!
• Questions?
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