Atmospheric polarisation measured by POLDER

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Atmospheric polarisation measured by POLDER. Polarisation: Stokes vectors, direction, etc. POLDER Results of analysis of POLDER polarisation data Conclusion / Relevance to SCIAMACHY. 28 August, 2003. Atmospheric light: Stokes vector {I, Q, U, V}. Polarisation.

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Presentation Transcript
Atmospheric polarisation measured by POLDER
• Polarisation: Stokes vectors, direction, etc.
• POLDER
• Results of analysis of POLDER polarisation data
• Conclusion / Relevance to SCIAMACHY

28 August, 2003

Atmospheric light: Stokes vector {I, Q, U, V}

Polarisation

V = 0 ; Q and U describe the linear part of polarisation

• Q = I0°– I90°
• U = I45°– I135°
• Q = P I cos 2
• U = P I sin 2
• P = degree of polarisation
• = direction of polarisation