Equilibrium temperatures of small particles in the earth's upper atmosphere /50-110 km/

Details Equilibrium temperatures of small particles in the earth's upper atmosphere /50-110 km/ Equilibrium temperatures of small particles in the earth's upper atmosphere /50-110 km/

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jatp...37.1327f&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 37, Oct. 1975, p. 1327-1337.

Physics

6

Aerosols, Atmospheric Temperature, Mie Scattering, Radiative Heat Transfer, Thermodynamic Equilibrium, Upper Atmosphere, Ambient Temperature, Annual Variations, Atmospheric Models, Diurnal Variations, Energy Transfer, Gas Temperature, Ionospheric Temperature, Particle Energy

Scientific paper

The problem of equilibrium aerosol temperatures in the upper atmosphere is analyzed. Differences between equilibrium temperature of the particles and ambient gas temperature in excess of 100 K are obtained above 60 km in daytime, depending on size, refractive index, and planetary albedo. Negative differences are possible at night. The fraction of absorbed radiation transferred into the ambient gas by collisions is found to change significantly with particle size and altitude. The implications of certain simplified assumptions adopted in the calculations are discussed.

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