AMDAR – The aircraft data source WMO AMDAR – The aircraft data source Impact, Benefits & Future 1

Data Envirnoment in Aviation: OPMET Data, WAFS WMO Data Envirnoment in Aviation: OPMET Data, WAFS Use of ICAO – approved systems (AFTN, AFS, CIDIN, SADIS, WIFS) Move to XML/GML Based Weather Exchange Models System Wide Information System Cooperation CAeM-CBS in TT Aviation XML 2

Accuracy DATA CURRENT TARGET Regions Where? Why? Quality Control WMO DATA CURRENT TARGET Regions Where? Why? Quality Control Contributions Costs Management Growth Benefits Accuracy 3

Accuracy DATA CURRENT TARGET Regions Where? Why? Quality Control WMO DATA CURRENT TARGET Regions Where? Why? Quality Control Contributions Costs Management Growth Benefits Accuracy 4

Data Pressure Altitude Static Air Temperature (To) Measurement Accuracy Pressure Altitude Roughly 0.1% of full scale pressure measurement Instrumental accuracy of 0.05% Max uncertainty approx. 4 hPa Static Air Temperature (To) 0.44OC @ Mach 0.8 0.30OC @ Low Mach Rating Additional 0.25OC at storage 5

Data Wind Speed/Direction Turbulence Relative Humidity Measurement Accuracy Wind Speed/Direction 1m/s Direction and Vector Error 2-3 m/s Turbulence 3% Variation Relative Humidity 20% Deviation in Upper Atmosphere Detection Limit of 0.05g/kg 0.05g/kg Good Perfomance 6

Data Measurement Stage Code Conversion Stage Data Assimilation Quality Control Measurement Stage Done at time measurements are taken on board aircraft Code Conversion Stage Point at which measurements obtained are converted to GTS Data Assimilation Happens in non-real time ID long term drift Measurement bias Consistent poor quality transmissions 7

Data Data Management (AMDAR-DM) Viewed in context of WMO World Weather Watch Optimize the integration of GOS, GTS and Data-processing System Specifications for data representation (codes, exchange formats, database design, storage of observational data) Designing proper procedures in the area of data processing and telecommunications, allowing members appropriate sets of data. Monitoring AMDAR operations and the quality of basic data and output products 8

Current Regions 6 Regions 38 Participating airlines I Africa II Asia III South America IV N. America, C. America, Caribbean V South-West Pacific VI Europe 38 Participating airlines 10 national & regional AMDAR Programmes 9

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Adjoint-based Observation Impact Analysis from the European Centre Current Adjoint-based Observation Impact Analysis from the European Centre 17

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Target Where? I Africa III South America IV N. America, C. America, Caribbean 19

ACARS Equipped Aircraft in Caribbean: 55 Target Caribbean ACARS Equipped Aircraft in Caribbean: 55 20

ACARS Equipped Aircraft in Africa: 264 Target Africa ACARS Equipped Aircraft in Africa: 264 21

TARGET Easterly Wave Deep Convection Tropical Cyclones Wind Shear Why? Easterly Wave Deep Convection Tropical Cyclones Wind Shear Global Circulation Moisture Budget Atmospheric Stability 22

TARGET Forecasting Climate Monitoring Why? Improve available data for National and Regional NWP projects (SWFDP) Sustainability of AMDAR data Contribute on a global scale Climate Monitoring Closely monitor climate variability and change Improved analysis of high-impact weather phenomena Linkage observations - HI Weather Triggers of significant events Typical onset conditions of severe weather 23

ECONOMIC TARGET Timely Warning Systems Aviation Agriculture Severe and Extreme Weather Aviation Flight Planning / Efficiency Regularity Agriculture Food security Flood, Drought Anomalous season changes Societal Benefits Protection of lives & property Improved planning particularly in vulnerable areas 24

Moving Forward... Proposed Industry Partners Airbus, Boeing, Embraer, Bombardier, AirDat LLC, SITA, ARINC, Teldyne Systems, Honeywell, SpectraSensor Incorporated Proposed Organization Partners NOAA, EUMETNET, FAA, EUROCONTROL Proposed Funding Partners World Banks, African Development Bank, Green Fund, UNDP, UNEP, IDB (Brazil) 25

Moving Forward... (Possibly add something here about getting all the involved parties to work together and advance the project as we had mentioned in your office) 26

Impact, Benefit & Future AMDAR Impact, Benefit & Future www.wmo.int 27