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Aerosol Research Progress at Uccle: Algorithms, Measurements, and Data Interpretation

This project focuses on improving aerosol algorithms, measuring aerosol properties at Uccle, and interpreting aerosol data. Tasks include Brewer SSA retrieval, Lidar measurements validation, and aerosol modeling with Chimere and OPAC. Collaboration with BIRA, continuous data analysis, and future planning are key aspects.

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Aerosol Research Progress at Uccle: Algorithms, Measurements, and Data Interpretation

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  1. AGACC II:WP3: Aerosol properties and radiative forcing at Uccle Veerle De Bock Royal Meteorological Institute of Belgium Veerle.DeBock@meteo.be

  2. Work Package 3: AEROSOL Task 3.1: Aerosol algorithms improvement Task 3.2: Aerosol measurements at Uccle Task 3.3: Aerosol data interpretation

  3. Task 3.1 Aerosol algorithms improvement • Task 3.1.2. Brewer SSA retrieval

  4. Task 3.1 Aerosol algorithms improvement • Sensitivity of the SSA retrieval algorithm to the input parameters:

  5. Task 3.2 Aerosol measurements at Uccle • Task 3.2.1 Routine Brewer operation • Task 3.2.2. Lidar measurements

  6. Task 3.2.1 Routine Brewer operation • Data from both Brewer instruments is continuously stored and regularly checked => submitted to WOUDC database • AOD time series kept up to date • Analysis of 21 year time series of simultaneous UV, global radiation, ozone and AOD measurements => paper to be submitted

  7. COST ES 1207 - EUBREWNET • coherent network of European Brewer Spectrophotometer monitoring stations • harmonize operations + develop approaches, practices and protocols to achieve consistency in quality control, quality assurance and coordinated operations • WG 1: instrument characterization and calibration • WG 2: algorithms development • WG 3: network governance and data management • WG 4: users, public outreach and applications

  8. Task 3.2.2 Lidar measurements • MLH algorithm => validation by comparison with: ° radiosoundings ° ECMWF ° ALARO7 • Quality control flags

  9. Task 3.2.2 Lidar • EUMETNET: E-PROFILE => operational LIDAR ceilometer network => exchange of backscatter profiles in a standard format => archive of communicated data and metadata • COST: TOPROF (Towards operational ground based profiling with ceilometers, doppler lidars and microwave radiometers for improving weather forecasts) => coordinated operation of ceilometers in Europe => quality controlled + calibrated observations in near real time => technical and scientific background for E-PROFILE

  10. Task 3.3 Aerosol data interpretation • Task 3.3.1: Comprehensive data set of aerosol optical properties • Task 3.3.2: Aerosol modeling with Chimere and OPAC • Task 3.3.3: Aerosol sources from backtrajectories

  11. Task 3.3.1 Comprehensive aerosol data set • Collaboration with BIRA • Comparison of cloud screening • Comparison of total AOD

  12. Task 3.3.2 Aerosol modeling with Chimere and OPAC • Input parameters: • MLH: from soundings or ALADIN model output • RH: from synoptical station at Uccle

  13. Task 3.3.2 Aerosol modeling with Chimere and OPAC

  14. Task 3.3.2 Aerosol modeling with Chimere and OPAC Correlation between modeled SSA/AOD and input parameters:

  15. Task 3.3.3 Aerosol sources from backtrajectories • Trajectories between 1990 and 2010: =>12 clusters

  16. Task 3.3.3 Aerosol sources from backtrajectories

  17. To conclude: what have we done so far? • Cloudscreening for Brewer AOD measurements • Continuous Brewer data (data submission, data analysis, COST) • Continuous Lidar data (backscatter profiles, MLH, cloud base height, COST, EUMETNET) • CHIMERE + OPAC • First results of backtrajectory analysis

  18. To conclude: future planning • Calibration of Brewer instruments • Installation of nephelometer • Installation of 3 new lidars: Zeebrugge, Diepenbeek, Humain • Continue collaboration with BIRA • Fine-tuning OPAC • Continue backtrajectory analysis

  19. Thank you for your attention!

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