Particle-Gas Temperature Differentials Resulting from Time-Dependent Radiative-Conductive Heat Flux Divergences in the Tenuous Dust-Laden Atmosphere of Mars.
Abstract
For an aerosol atmosphere, disparities in gas temperature, T sub g, and particle temperature, T sub P, may arise over the diurnal cycle. A radiative-conductive- convective heat transfer simulation of the dusty atmosphere of Mars was developed to quantify the temporal and spatial character of the temperature difference (T sub p -T sub g). This program computed thermal energy fluxes in the temporal and vertical domains in a 51-layer, vertically inhomogeneous , plane-parallel model atmosphere, with a 30 layer simulated ground structure. Observations from Mariner and Viking spacecraft were used in conjunction with other research findings to provide model input and set the boundary and initial conditions for the simulation. Temperature fields within the atmosphere were inferred from radiative-conductive-convective flux fields by means of enthalpy rate principles, while the radiation laws of Kirchoff and Planck were applied to the flux fields to determine aerosol temperatures. Several independent methods of validation were sucessfully applied to the model output, including comparisons with distinct spacecraft observations and the separate computation of dust heating effects outside the model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1987
- Accession Number
- ADA185888
Entities
People
- Paul J. Bellaire Jr
Organizations
- Air Force Institute of Technology