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 4-azimuth MAX -DOAS measurements in Mainz

MAXDOAS horizontal (averaging) effects MPI for Chemistry (MPIC), Mainz, Germany T. Wagner, J. Remmers, S. Beirle.  4-azimuth MAX -DOAS measurements in Mainz  Characterisation of the information content using 3D RTM. Master Thesis, Julia Remmers. Comparison of the Telescopes (5°)

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 4-azimuth MAX -DOAS measurements in Mainz

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  1. MAXDOAS horizontal (averaging) effects MPI for Chemistry (MPIC), Mainz, Germany T. Wagner, J. Remmers, S. Beirle  4-azimuth MAX-DOAS measurements in Mainz  Characterisation of the information content using 3D RTM Master Thesis, Julia Remmers

  2. Comparison of the Telescopes (5°) NO2 DSCDs

  3. Gradient plots (1) • Measurement for the horizontal variability • Possibility to detect sources

  4. Gradient plots (2) NO2 DSCDs N W E S

  5. Gradient plots (3)

  6. 3D, spherical Monte Carlo RTM MCARTIM, Tim Deutschmann - 1D, 2D, 3D Box AMF Visualisation of a Monte-Carlo radiative transfer simulation (yellow: surface reflection, red: Rayleigh scattering, green: particle scattering)

  7. Box AMF 0-1km, 500nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 1° 0 km -200 km 0 km 200 km

  8. Box AMF 0-1km, 360nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 1° 0 km -200 km 0 km 200 km

  9. Box AMF 0-1km, 360nm, aerosols 1-1km, OD 0.5 horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 1° 0 km -200 km 0 km 200 km

  10. Box AMF 0-1km, 360nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 1° 0 km -200 km 0 km 200 km

  11. Box AMF 0-1km, 360nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 2° 0 km -200 km 0 km 200 km

  12. Box AMF 0-1km, 360nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 5° 0 km -200 km 0 km 200 km

  13. Box AMF 0-1km, 360nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 10° 0 km -200 km 0 km 200 km

  14. Box AMF 0-1km, 360nm, no aerosols horizontal grid: 8 km x 8km vertical grid: 100m 10 km SZA: 70° 5 km MAX-DOAS elevation: 30° 0 km -200 km 0 km 200 km

  15. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 360nm, no aerosols horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km MAX-DOAS

  16. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 360nm, no aerosols horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km MAX-DOAS

  17. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 360nm, no aerosols horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km MAX-DOAS

  18. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 500nm, no aerosols horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km

  19. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.1 horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km

  20. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.2 horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km

  21. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.3 horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km

  22. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.5 horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km

  23. 50 km 0 km -50 km -50 km 0 km 50 km Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 1 horizontal grid: 2km x 2km elevation: 1° SCIA: 30 km x 60 km

  24. Conclusions • Horizontal gradients can be determined from 4-azimuth MAX-DOAS observations => information on location of sources • 3D-distribution of the sensitivity of MAX-DOAS depends strongly on wavelength and aerosol load • horizontal area with box-AMF > 1 ranges typically from ~3 km to ~30 km • spatial resolution of future satellite instruments maches that of MAX-DOAS observations (or is even finer)

  25. Cabauw, 24.06.2009

  26. Cabauw, 21.06.2009

  27. Cabauw, 07.07.2009

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