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LPLC II 19 May 1999

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 (100-110 km)

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LPLC II 19 May 1999

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

  2. Data and Predictions • Density, density scale height & temperature at 130 km (in & out) and periapsis (100-110 km) • Mars Thermosphere Global Circulation Model predicts mean atmospheric behaviour • Predictions cover ~ 1 month

  3. 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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