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In-service Aircraft for a Global Observing System

In-service Aircraft for a Global Observing System. Longterm Observations for Climate Change and Air Quality from a Fleet of Passenger Aircraft 16 Partners Scientific institutions (D, F, UK) Aviation industry and aerospace Meteorological services Funding Agencies Users Scientific community

abraham-clay
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In-service Aircraft for a Global Observing System

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  1. In-service Aircraft for a Global Observing System • Longterm Observations for Climate Change and Air Quality from a Fleet of Passenger Aircraft • 16 Partners • Scientific institutions (D, F, UK) • Aviation industry and aerospace • Meteorological services • Funding Agencies • Users • Scientific community • Validation of models and satellite data • GMES-Atmospheric Service • Aviation www.iagos.org

  2. The Aim of IAGOS • Build a long-lasting infrastructure for monitoring the atmosphere from 20 in-service aircraft on a global scale. • Provide high-quality information for monitoring of climate change and global air quality, including the impact of aviation. • Ozone, H2O, CO, NOx, NOy, CO2, aerosol, cloud particles • Specific goals: • Instrument Development • Aeronautic Certification • Data transfer, database, quality assurance • Partnerships with airlines and research institutes • Funding for longterm operation • Serve as a cluster for international cooperation

  3. H2O, O3, CO, CO2 NOy, NOx, aerosol, cloud particles H2O, O3, CO, NOy MOZAIC publications H2O, O3 IAGOS MOZAIC 1993 2001 2005 2012 CARIBIC From Research to Sustainability

  4. The Value of Regular Aircraft Data Higher resolution than satellites (UTLS) Tropospheric profiles of CO, CO2, NOx, aerosol, .. Same instruments used for global measurements (QA/QC) Justification for IAGOS Scientific Issues • Ozone and water trend in the Tropopause region • Ice supersaturation (persistent contrails, clouds) • Air Quality (profiles of CO, NOx, aerosol) • NOx budget (impact of aircraft) • Climate change (CO2 profiles, aerosol) • Validation of Satellite Products and Models

  5. Towards IAGOS • Basic idea developed in 1980s • Global experiments with French research aircraft (STRATOZ/TROPOZ) • Three succesful research projects (MOZAIC) 1993-2003 • 5 Airbus A340 with automatic instruments for O3 & H2O, later also CO & NOy • Data from ca. 30 000 longhaul flights • Demonstration of feasibility (no interference with airlines‘ operation) • Sustainable partnership (CNRS, MF, FZJ, UCAM, Airbus, Airlines, i.e., DLH) Open for new partners (UMAN, DLR, BA, MPI-Jena,..) • Open data policy => growing record of publications

  6. IAGOS will form a cornerstone of IGACO/GEOSS and GMES IAGOS Variables defined by IGACO

  7. The IGACO Concept GAW Calibration & Quality Assurance World Integrated Data Archive System: Includes WOUDC Global Products Reanalysis WMO Real-Time Data Distribution: Weather Information System (WIS) WMO Space Programme Data Uses / Applications 1. Public UV Warnings 2. Public Ozone Bulletins 3. Research 4. Scientific Assessments 5. Forecasts of Ozone Depletion 6. Improved Weather Forecast Assimilation of Real-Time Data by Forecast Models Aircraft: GAW & IAGOS Surface-based: GAW

  8. Routine Aircraft Projects

  9. Water Vapour (MOZAIC) • Most important GHG (2/3 of warming due to water feedback) • Control of relative humidity in the upper troposphere ? • Global distribution highly variable (Ice supersaturation) • Influence on radiation (directly and via cloud formation) • Formation of Persistent Contrails (flight management)

  10. winter (DJF) summer (JJA) NOy in the Upper Troposphere (MOZAIC) No significant enhancement in flight corridor during winter < 0.5 ppb NOy Enhanced NOy over USA and Europe in summer is due to convective transport and lightning Up to 3 ppb NOy (average!)

  11. NOy MOZAIC NOy Upper Troposphere Summer 2003 MOZART-3 NOy above 610 hPa MOZART-3 NOy Surface (977 hPa) Models have difficulties to lift surface emissions into the UTLS. => Wrong predictions ?

  12. The Value • IPCC has emphasised the need for measurement programmes • MOZAIC data have been used by researchers world wide for studies of • Climate change, air pollution, model evaluation, satellite evaluation, impact of aircraft • >100 Publications • More than 20 world-leading scientists have expressed the need for longterm continuation and expansion of routine aircraft measurements

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