 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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MAXDOAS horizontal (averaging) effects

Presentation transcript:

 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

Comparison of the Telescopes (5°) NO 2 DSCDs

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

N S WE Gradient plots (2) NO 2 DSCDs

Gradient plots (3)

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)

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°

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°

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

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°

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°

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°

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°

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°

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°

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°

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°

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°

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

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

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

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

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°

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)

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