The Martian Upper Atmosphere as Revealed by Mars Global Surveyor’s Aerobraking Paul Withers & Steve Bougher LPLC II 19 May 1999.

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Presentation transcript:

The Martian Upper Atmosphere as Revealed by Mars Global Surveyor’s Aerobraking Paul Withers & Steve Bougher LPLC II 19 May 1999

Data and Predictions Density, density scale height & temperature at 130 km (in & out) and periapsis ( km) Mars Thermosphere Global Circulation Model predicts mean atmospheric behaviour Predictions cover ~ 1 month

Points to remember Unexpected stationary longitudinal variations mean surface effects propagating up over 100km Mid-latitude models useful Polar night badly modelled

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