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AQ and remote sensing

Space Research Centre. AQ and remote sensing. Prof. Paul Monks & Dr. Roland Leigh University of Leicester. 12,000 to 24,000 people die early every year in the UK from the short-term, or acute, effects of air pollution. Air Quality. AQ.

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AQ and remote sensing

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  1. Space Research Centre AQ and remote sensing Prof. Paul Monks & Dr. Roland Leigh University of Leicester

  2. 12,000 to 24,000 people die early every year in the UK from the short-term, or acute, effects of air pollution Air Quality AQ Air Quality - 12,000 to 24,000 people die early every year in the UK from the short-term, or acute, effects of air pollution Nitrogen Dioxide from space (SCIAMACHY – ENVISAT) AQ Model and Forecast Reduce hospital admissions Ground-based observations User Output

  3. Satellites In situ Ground based remote sensing

  4. 15o 10o 5o Multi-Axis DOAS Late pm Solar Noon Stratosphere Ozone Layer O3 NO2 Troposphere NO2 Boundary Layer NO2 O3 DOAS

  5. NS(NO2)Total = NS(NO2)Leic-NS(NO2)bkg Correlation between OMI NO2 concentration in the PBL and the mean near-surface NO2 concentrations across the OMI sampling area, for January 2005 to December 2006. The different symbols represent the seasons, autumn (black circles), winter (green stars), spring (red triangles) and summer (blue crosses).

  6. Weekly cycle For each day of the week the mean is calculated and normalised to the median weekly value. A weekly cycle is evident with 20-30% lower NO2 vertical column densities observed on Sunday and a 10 % reduction on a Saturday.

  7. Identify and quantify emission sources within an urban environment.

  8. Aerosol OD from O4 measurements (Leigh et al, 2007)

  9. CityScan 420 - 590 nm (NO2 optimised) Instantaneous Field of view (500 resolved elements) • A scanning imaging DOAS system for air quality monitoring, research and satellite validation. Complete 360o Scan every 6 minutes

  10. Linking Spatial Scales: Satellite – ground-based Gas Tomography: • Source identification • Dynamics and chemistry of emissions 15 km 20 km Project partners and funding agencies. Contacts: Roland Leigh (R.J.Leigh@Leicester.ac.uk) Paul Monks (P.S.Monks@Leicester.ac.uk)

  11. CityScan – in action (simulated)

  12. Quick Tomographic Retrieval (Annealing) Roland Leigh

  13. CAR/BUS POSITIONING DATA CityScan REAL TIME POSITION CONGESTION MAPPING NRT POLLUTION MAPPING INTELLIGENT ROUTING Forecast from EO OPTIMISE JOURNEY TIME POLLUTION IMPACT Intelligent Traffic Management

  14. GNSS Technology Transfer Atmos. Chem(S4, S5P, S5) Public Information OPTIMISE Met. Parameters Economic Benefit Integrated services eg. MACC Air Quality and health Carbon and Climate

  15. The 4-D challenge!!

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