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 4-azimuth MAX-DOAS measurements in Mainz  Characterisation of the information content using 3D RTM MAXDOAS horizontal (averaging) effects MPI for Chemistry.

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Presentation on theme: " 4-azimuth MAX-DOAS measurements in Mainz  Characterisation of the information content using 3D RTM MAXDOAS horizontal (averaging) effects MPI for Chemistry."— Presentation transcript:

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

2 Comparison of the Telescopes (5°) NO 2 DSCDs

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

4 N S WE Gradient plots (2) NO 2 DSCDs

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 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 1° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

8 Box AMF 0-1km, 360nm, no aerosols 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 1° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

9 Box AMF 0-1km, 360nm, aerosols 1-1km, OD 0.5 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 1° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

10 Box AMF 0-1km, 360nm, no aerosols 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 1° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

11 Box AMF 0-1km, 360nm, no aerosols 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 2° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

12 Box AMF 0-1km, 360nm, no aerosols 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 5° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

13 Box AMF 0-1km, 360nm, no aerosols 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 10° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

14 Box AMF 0-1km, 360nm, no aerosols 10 km 5 km 0 km -200 km0 km200 km MAX-DOAS elevation: 30° horizontal grid: 8 km x 8km vertical grid: 100m SZA: 70°

15 Box AMF 0-1km, 360nm, no aerosols 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km MAX-DOAS elevation: 1°

16 Box AMF 0-1km, 360nm, no aerosols 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km MAX-DOAS elevation: 1°

17 Box AMF 0-1km, 360nm, no aerosols 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km MAX-DOAS elevation: 1°

18 Box AMF 0-1km, 500nm, no aerosols 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km elevation: 1°

19 Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.1 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km elevation: 1°

20 Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.2 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km elevation: 1°

21 Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.3 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km elevation: 1°

22 Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 0.5 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km elevation: 1°

23 Box AMF 0-1km, 500nm, aerosols: 0-1km, OD 1 50 km 0 km -50 km 0 km50 km horizontal grid: 2km x 2km SCIA: 30 km x 60 km elevation: 1°

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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