WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

New WAFC Gridded Products =New WAFC Gridded Products =New Visualisation New Visualisation

OpportunitiesOpportunitiesJozef Matula

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

IBL’s cooperation with WAFC trialsIBL’s 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.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

NEW VISUALISATION NEW VISUALISATION OPPORTUNITIESOPPORTUNITIES

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

Long Haul Chart ProductsLong Haul Chart Products

Produced byProduced byIBL Visual Weather andIBL Visual Weather andIBL Aero WeatherIBL Aero Weather

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

New Gridded New Gridded ProductProducts Visualisations Visualisation

Produced byProduced byIBL Visual Weather anIBL Visual Weather anddIBL Aero WeatherIBL Aero Weather

Single parameter visualisations don’t provide any real added value however they are easily interpretable.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

New Parameters Visualisation New Parameters Visualisation ChallengeChallengeProposed 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.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

Opposite Opposite Minimalistic ApproachMinimalistic ApproachApplying 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).

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

CrossCross--section section Visualisation Visualisation ((11))

Produced byProduced byIBL Visual Weather andIBL Visual Weather andIBL Aero WeatherIBL Aero Weather

Thisprovides easy to interpret “picture”but hidesthe surrounding information.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

CrossCross--section section Visualisation Visualisation ((22))

Produced byProduced byIBL Visual Weather andIBL Visual Weather andIBL Aero WeatherIBL Aero Weather

You can’t fax this without losing the quality!

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

CONCLUSIONS & FEEDBACKCONCLUSIONS & FEEDBACK

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

SIGWX BUFR vsSIGWX BUFR vs.. New gridded products New gridded products (1)(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.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

SIGWX BUFR vsSIGWX BUFR vs.. New gridded products New gridded products (2)(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.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

Synergy of Synergy of features vs. gridsfeatures vs. grids

Feature objects cannot be simply interpolated in time – this would require change in their data model.

WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009WAFS Workshop on the Use and Visualisation of Gridded SIGWX Forecasts, Paris, 14-15.09.2009

Thank you for your attention!

Questions?

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