Author: Gunnar FjeldboPublisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 66
Book Description
Models for the Atmosphere of Mars Based on the Mariner IV Occultation Experiment
Author: Gunnar FjeldboPublisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 66
Book Description
A Model for the Lower Atmosphere of Mars Based on Mariner Iv Occultation Data
Author: Albert D. AndersonPublisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 32
Book Description
The Mariner IV occultation experiment has resulted in several surprising conclusions about the lower atmosphere of Mars, including very low values for the neutral properties (temperature, pressure, and density) and the dominance of CO2. Guided by these new results and theoretical models of the Martian atmosphere, a neutral property model has been derived which takes into account surface air temperature variation. The neutral properties up to 50 km exhibit a strong dependence on the surface temperature. Thus, it appears that the meteorology of Mars, even at the higher altitudes, depends significantly on the surface temperature distribution. An isopycnic (constant density) level is manifested in the model at 10 km where the density value is 5.77 x 0.000001 gm/cc for surface temperatures ranging from 175K to 325K. At 50 km, the density variation for this same surface temperature range is a factor of 4. The height of the tropopause (boundary between convective and radiative equilibrium regimes), taken to vary linearly with the surface temperature, is one of the principal uncertainties since the computed properties are sensitive to it. The accuracy of the model is indicated to decrease with altitude, especially above 30 km where the effects of CO2 photochemistry, doppler broadening, and the departure from local thermodynamic equilibrium start to become important. (Author).
Atmosphere of Mars: a Comparison of Different Model Studies Based on Mariner IV Occultation Data
Author: Stanford University. Stanford Electronics LaboratoriesPublisher:
ISBN:
Category :
Languages : en
Pages : 52
Book Description
Planetary Atmospheres
Author: Models of Mars' Atmosphere (1974)
Author: Models of Mars' Atmosphere (1974)
Author: Richard B. NollPublisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 64
Book Description
Scientific and Technical Aerospace Reports
Author: Results of the Mariner 6 and 7 Mars Occultation Experiments
Author: Laboratory Simulation of the Mars Atmosphere
Author: T. S. ChangPublisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 138
Book Description
Atmosphere of Mars Analyzed by Integral Inversion of the Mariner IV Occultation Data
Author: Stanford University. Stanford Electronics LaboratoriesPublisher:
ISBN:
Category :
Languages : en
Pages : 70
Book Description