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EUCOS

EUCOS. Further development of the EUMETNET Composite Observing System. TECO-2008 - WMO Technical Conference on Meteorological and Environmental Instruments and Methods of Observation St. Petersburg, Russian Federation, 27-29 November 2008 Stefan Klink, Jochen Dibbern and Tanja Kleinert

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EUCOS

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  1. EUCOS Further development of the EUMETNET Composite Observing System TECO-2008 - WMO Technical Conference on Meteorological and Environmental Instruments and Methods of Observation St. Petersburg, Russian Federation, 27-29 November 2008 Stefan Klink, Jochen Dibbern and Tanja Kleinert EUCOS Team www.free-stockphotos.com

  2. Content • About EUMETNET and EUCOS • EUCOS objectives • The current EUCOS network • Studies Programme • Space-Terrestrial study and recommendations derived from it • EUCOS upper-air network redesign • PREVIEW Data Targeting System • Future plans TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  3. About EUMETNET and EUCOS (1) TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  4. About EUMETNET and EUCOS (2) EUCOS OPERATIONAL PROGRAMME E-AMDAR Fully integrated programmes E-ASAP (including OWS „M“ and Ekofisk“) E-SURFMAR (surface marine buoys and VOS) WINPROF Integration in 2008 Territorial Segment (upper air and RBSN stations) Collaborative components Operations Monitoring Managed by EUCOS team Studies Programme Possible Future Programmes Evolving needs Observation Targeting Programme Components TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  5. EUCOS Information System ( www.eucos.net ) TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  6. Medium and extended range weather prediction over the Globe Contributes to Provides a framework for Very short range and nowcasting over national territories EUCOS objectives (1) EUCOS: Serving the Regional Scale NWP requirement for observations over the European region Warnings and Info Services Climate, Climate prediction TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  7. EUCOS objectives (2) • Design and coordinate the evolution of the ground based EUMETNET composite observing system (EUCOS) to be optimized at European scale with a view to improve short range forecast over Europe without increasing the overall cost • Monitor and control EUCOS performance • Ensure integrated management for agreed components such as E-ASAP, E-AMDAR, E-SURFMAR (and WINPROF) • Support the evolution of EUCOS through a studies programme TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  8. EUCOS objectives (3) EUCOS area (10N-90N, 70W-40E) TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  9. The current EUCOS network (1) • All European ships of the Automated Ship Aerological Programme ASAP(10 E-ASAP integrated, 5 national) • All measurements from European commercial aircraft (AMDAR) • Ocean weather ship „M“ and Ekofisk oil platform • Selected moored buoys and all European drifting buoys • European Voluntary Observing Ships • Selected European radiosonde stations • Selected European synoptic weather stations TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  10. The current EUCOS network (2) E-ASAP: RS ascents on a 2° x 2° grid during 2007 TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  11. The current EUCOS network (3) E-AMDAR: TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  12. The current EUCOS network (4) E-SURFMAR: EGOS then EUCOS drifting buoys, average number of hourly observations per day TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  13. EUCOS network performance 2007 TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  14. Studies Programme • Impact Studies as a measure to guideline the evolution of EUCOS • (External) drivers and developments: • Different observation networks evolve differently (e.g. regarding availability, accuracy, cost, ...) • Data assimilation algorithms improve and can make use of more data • EUCOS objective: • Design and coordinate the evolution of the ground based EUCOS to be optimized at European scale with a view to improve short range forecast ... • → A modification of the meteorological observing network might become necessary • EUCOS needs approval for network changes or modifications from PB-OBS and EUMETNET Council respectively • In order to get the 24 Members convinced of such changes it was decided to base them on scientific analyses (e.g. impact studies) TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  15. Space-Terrestrial Study and recommendations derived from it (1) • Motivation: need to better understand the relative contribution of satellite and ground-based observations so that the total system may be progressively optimised • five European NWP centres agreed running “Observation System Experiments” (OSE), thereby relying on common scenarios, time periods and verification procedures • The following scenarios were defined: • Baseline: all current satellite observations used in NWP + GUAN radiosonde network + hourly GSN surface land data + hourly buoys (no ship data) • Control: full combined observing system • And different additions to the Baseline (radiosondes, wind profiler, aircraft measurements). TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  16. Space-Terrestrial Study and recommendations derived from it (2) The studies lead to a list of general conclusions, compiled at the 2007 E-SAT meeting (complete list can be found in the proceedings): • Compared to Baseline all additional ground based observing systems have a positive impact on the forecast skill. On top of the additional available satellite data further improvements of the ground based observing system are important. • The radiosonde network is still the most important component of the ground based upper-air observing network. • The impact of aircraft measurements is significant and second largest ... • AMDAR humidity is seen as a high priority project. • ... TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  17. EUCOS upper-air network redesign (1) • Motivation: • Significant evolution of the European AMDAR network • Members were not able to install the proposed EUCOS radiosonde network design with 4 ascents per day at most of the sites • Results from the Space Terrestrial Studies are available with recommendations for the network design TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  18. EUCOS upper-air network redesign (2) Proposed OSE scenarios: TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  19. PREVIEW Data Targeting System • Aim of data targeting: make additional observations when and where they will be most beneficial to subsequent forecasts • A pre-operational Data Targeting System (DTS) has been developed to assess the feasibility of operational adaptive control of the observing system • 50% / 50% funding from EUCOS and EC • 505 high impact cases were proposed and 446 accepted by the lead user • During 11 months trial period 87% of requested radiosonde ascents from land stations had been deployed • DTS is described in the latest issue of the “ECMWF newsletter” TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  20. Future plans TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008

  21. Questions and Comments? TECO 2008 St. Petersburg,Russian Federation, 27-29 Nov 2008 www.free-stockphotos.com

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