The German In-flight Icing Warning System ADWICE - current status, on-going research & development and future challenges In-Flight Icing Users Technical.

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Presentation transcript:

The German In-flight Icing Warning System ADWICE - current status, on-going research & development and future challenges In-Flight Icing Users Technical Interchange Meeting Washington DC, Feb Frank Kalinka Research & Development division,Deutscher Wetterdienst, Offenbach,

Overview  ADWICE system  Prognostic Icing Algorithm  Diagnostic Icing Algorithm  Verification  User Products  On-Going Research & Development  Single European Sky ATM Research Program (SESAR)  Future Challenges 2

Prognostic Icing Algorithm (ADWICE PIA) Catalog for icing scenarios COSMO-EU (3D) Pressure Temperature Humidity Top and Bottom of Convection ADWICE Domain ADWICE System Prognostic Icing Product (PIP) Icing scenario Icing intensity (fuzzy logic) FreezingStratiform ConvectiveGeneral SevereModerate Light -Updated 4 times a day -Hourly forecasts up to 24h, 3-hourly until 78h

Diagnostic Icing Algorithm (ADWICE DIA) PIP (3D) as „first guess“ Observational data (2D) SYNOP/METAR & RADAR + SATELLITE ( Catalog for icing scenarios (Confirm/reject PIP and identify possible icing risk) Diagnostic Icing Product (DIP) Icing scenario Icing intensity (fuzzy logic) FreezingStratiform ConvectiveGeneral SevereModerate Light ADWICE System - Updated hourly!

 Comparison: ADWICE vs. PIREPs (Oct.-Dec. 2013)  „cube“ of all model-grid-points within ~20km horizontal and 3 GP vertical around PIREP compared with PIREP  Neglect icing intensity (only: Icing or No Icing)  Problem: only few (472) PIREPS available over Europe, especially “no icing” information missing 5 ADWICE System - Verification Hit-Rate1-False-Alarm-Rate Area under curve PIP86,6566,670,7666 DIP83,2371,430,7733

 Operational in use for aviation advisory centres in visualisation tool “NinJo” (Germany & Switzerland) on  Model layers (lowest 33)  Flight Levels (12 levels, up to FL 300)  As composite 6 ADWICE user products

 Self-briefing System „pc-met“ for general aviation (license required): ADWICE user products

 EUROCONTROL: Clearflight-tool (UKMO)  Decision support for Networkmanager (account required) 8 ADWICE user products

 Global setup of ADWICE with ICON model data:  on ~0.25° global horizontal grid (planned for 2016: ~0.125°)  Icing – Forecasts expected to be operational end of 2015 (verification missing yet  PIREPS?!)  Icing – Diagnosis following afterwards On-going Research & Development

 (T-)AMDAR study ongoing with COSMO-EU over U.S.:  Additionally used (PANASONICS Tropospheric-) Atmospheric Meteorological Data Reporting system – data (T/AMDAR) as initial input data for COSMO-EU over U.S. (e.g additional measurements on 10th of June 2013)  one result: reduction of Forecast error of humidity in the boundary layer  Question: how is the influence on results forecasting Aircraft Icing by unsing AMDAR/TAMDAR data in NWP? 10 On-going Research & Development

SESAR Work Package Project Aim: Develop consolidated harmonized forecast products over Europe to increase efficiency of processes related to Air Traffic Management (ATM). SESAR WP11.2 Task 1 Objective: Development of MET Prototypes Task 2 Objective: Development of interfaces to ATM systems Task 3 Objective: Validation of MET Prototypes Subtasks dedicated to MET phenomena significant for ATM, e.g. Convection, CAT, Icing

X1.4 Icing Subtask 12 Objective: Develop a unified forecast of icing conditions based on a composite of the most advanced existing techniques from DWD, MF and MO. Verification scheme Analysis of results Determine optimal combination of forecasts for prototype development. DWD forecasts MF forecasts MO forecasts Delivery to DWD P EPE, M. S. & T HOMPSON, M. L. (2000). Combining diagnostic test results to increase accuracy. Biostatistics 1, 2, pp

 Ice crystal icing?  Icing forecasts for type of aircraft?  Combining new remote sensing data / observations with icing-diagnosis  Improve liquid water content (LWC)  direct usage of LWC for icing forecasts instead of Temperature & Humidity thresholds  What do users really need? 13 Future Challenges

Thank you for your attention! Contact Persons:  (SESAR)  (T-/AMDAR)  (ADWICE) PBPV – 03/