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Links between DAOS-WG and ET-EGOS John Eyre (Chair ET-EGOS)

Links between DAOS-WG and ET-EGOS John Eyre (Chair ET-EGOS). DAOS-WG, 4 th meeting, Exeter, 27-28 June 2011. Links between WMO/CAS/THORPEX/ICSC/DAOS-WG and WMO/CBS/OPAG-IOS/ET-EGOS Expert Team on Evolution of Global Observing System s. WMO structure. WMO | Commissions

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Links between DAOS-WG and ET-EGOS John Eyre (Chair ET-EGOS)

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  1. Links between DAOS-WG and ET-EGOSJohn Eyre(Chair ET-EGOS) DAOS-WG, 4th meeting, Exeter, 27-28 June 2011

  2. Links between WMO/CAS/THORPEX/ICSC/DAOS-WG and WMO/CBS/OPAG-IOS/ET-EGOSExpert Team onEvolution of Global Observing Systems

  3. WMO structure WMO | Commissions CAS CCl CAeM CHy CBS CAgM CIMO JCOMM | | . Open Programme Area Groups (OPAGs) IOS ISS DPFS PWS | . Expert Teams . ET-EGOS ET-SAT ET-SUP ET-AWS ET-AIR ET-SBRSO

  4. Global observing systems: the evolution process Observing capabilities User requirements for observations User requirements for observations User requirements for observations User requirements for observations Gap Analyses (Statements of Guidance) Implementation Plan Long-term Vision for global observing systems Programmes of Members and Agencies

  5. ET-EGOS: tasks • Run “Rolling Review of Requirements” (RRR) process • observation requirements • observing system capabilities • “Statements of Guidance” (gap analyses) • implications for evolution of observing systems • assess studies of real/hypothetical changes to observing systems, with the assistance of NWP centres • Develop new version of Implementation Plan for Evolution of global observing systems, based on the “Vision for the GOS in 2025” • Application areas: Global NWP, High-res. NWP, Seasonal and inter-annual forecasting, Aeronautical met., Nowcasting and VSRF, Atmospheric chemistry, Ocean applications, Hydrology, Climate (GCOS), Climate (CCl), …

  6. Vision for the GOS in 2025 http://www.wmo.int/pages/prog/www/OSY/GOS-redesign.html

  7. General themes and issues • Response to user needs • Integration • Expansion • Automation • Consistency and homogeneity

  8. Space-based component of the GOS • Operational geostationary satellites • Operational polar-orbiting sun-synchronous satellites • Additional operational missions in appropriate orbits • Operational pathfinders and technology demonstrators • Polar and geo platforms/instruments for space weather

  9. Space-based component of the GOS (2) Some trends – what will be delivered? • Expanded observing capability • Higher resolution – spatial, temporal, spectral • Improved availability and timeliness of data • Improved calibration and inter-calibration Some trends – how will it be delivered? • Expanded community of contributing agencies • Increased collaboration between agencies • R&D satellites playing an increasing role • R&D capabilities progressively transferred to operations • Use of constellations of satellites

  10. Surface-based component of the GOS (1) • Land – upper-air • Land – surface • Land – hydrology • Land – weather radar • Ocean – upper-air • Ocean – surface • Ocean – sub-surface • R&D and operational pathfinders

  11. Surface-based component of the GOS (2) Some trends and issues: • Improvements: more observed variables, accuracy, resolution, … • Improved support to nowcasting and very short-range forecasting • Radiosonde network – optimisation, GUAN, GRUAN • Aircraft systems – expansion of fleet, of variables measured, … • Land-surface stations – includes GSN, wider variety of networks • Surface marine – improved temporal resolution and timeliness • Ocean sub-surface – in situ, gliders, … • Improved weather radar – enhanced accuracy, coverage, variables .. • Other remote sensing – profilers, coastal HF radar, GNSS, … • Lightning detection – long-range, and high-resolution short-range • Atmospheric composition – new strategy, integration (WIGOS)

  12. Implementation • The new Vision – a realistic aspiration and target for 2025 • Long development lead-times for some components • CBS endorsed the new Vision in 2009  Now working on new Implementation Plan • Provide guidance for WMO Members and partner consortia • Propose roles for fulfilling the new Vision • Set out “road-map” for achieving it

  13. Role of impact studies • OSEs • OSSEs • Forecast impact of observations • Other impact studies • Network design studies • … NWP centres Workshops on THORPEX Impact of Obs ET-EGOS in NWP others Next (5th) workshop – 22-25 May 2012, Arizona

  14. Proposed impact studies (1) • What density of surface pressure observations over ocean is needed to complement high-density surface wind observations from satellites? • What network of in situ observations is needed in the stratosphere to complement current satellite observations (including radio occultation)? • What is the impact of AMDAR observations? • What is the impact of coverage of profiles from ASAPs? • What are the impacts of radar observations, including radial winds and reflectivities?

  15. Proposed impact studies (2) • At what level does the impact of radio occultation observations start to saturate? • What is the impact of new developments in the assimilation of radiance data over land? • What benefits are found when data from more than one passive sounder are available from satellites in complementary orbits • What impacts are found from AMVs?

  16. Proposed impact studies (3) • What impacts/benefits are found from data density/thinning strategies • What should be the focus of improvements for observations of the PBL in support of regional/high-resolution NWP? • Can EUCOS-like upper air studies be performed for other regions? • What insights can be gained from more tailored use of adjoint- and ensemble-based measures of observation impact? • Which observations are particularly important for 7-14 day forecast range? • What do experiments on targeted observations tell us about observing system design? • What impacts/benefits could be expected by sustained components of the AMMA and IPY special observing systems?

  17. Concluding remarks • ET-EGOS welcomes help and advice from THORPEX on questions relevant to the cost-effective evolution of global observing systems

  18. EndThank-you for your attention

  19. Space-based component of the GOS (1) Operational geostationary satellites – at least 6 – each with: • Infra-red/visible multi-spectral imager • Infra-red hyper-spectral sounder • Lightning imager Operational polar-orbiting sun-synchronous satellites - in 3 orbital planes – each with: • Infra-red/visible multi-spectral imager • Microwave sounder • Infra-red hyper-spectral sounder

  20. Space-based component of the GOS (2) Additional operational missions in appropriate orbits: • Microwave imagers • Scatterometers • Radio occultation constellation • Altimeter constellation • Infra-red dual-view imager – sea surface temperature • Advanced visible/NIR imagers – ocean colour, vegetation • Visible/infra-red imager constellation – land-surface • Precipitation radars • Broad-band visible/IR radiometers – radiation budget • Atmospheric composition monitoring instruments • Synthetic aperture radar

  21. Space-based component of the GOS (3) Operational pathfinders and technology demonstrators: • Doppler wind lidar • Low-freq. microwave radiometer – salinity, soil moisture • Microwave imager/sounder on geos - precipitation • Advanced imagers on geos • Imagers on satellites in high-inclination, elliptical orbits • Gravimetric sensors – water: lakes, rivers, ground Polar and geo platforms/instruments for space weather - for solar imagery, particle detection, electron density

  22. The surface-based component

  23. Surface-based component of the GOS (2) Land – upper-air • Upper-air synoptic and reference stations • Aircraft • Remote-sensing upper-air profiling stations • Atmospheric composition stations • GNSS receiver stations Land – surface • Surface synoptic and climate reference stations • Lightning detection system stations • Atmospheric composition stations • Application-specific stations (road weather, airports, agromet., urban met., …)

  24. Surface-based component of the GOS (3) Land – hydrology • Hydrological reference stations • National hydrological network stations Land – weather radar • Weather radar stations Ocean – upper-air • Automated Shipboard Aerological Programme (ASAP) ships

  25. Surface-based component of the GOS (4) Ocean – surface • Synoptic sea stations – ocean, island, coastal, fixed platform • Ships • Buoys – moored and drifting • Ice buoys • Tide stations Ocean – sub-surface • Profiling floats • Ice tethered platforms • Ships of opportunity

  26. Surface-based component of the GOS (4) R&D and operational pathfinders - EXAMPLES • GRUAN stations • UAVs • Gondolas • Aircraft – chemistry, aerosols, … • Instrumented marine animals • Ocean gliders • …

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