Accession Number : ADA019940

Title :   Tropical Atmospheres, 0 to 90 KM,

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MASS

Personal Author(s) : Cole,Allen E. ; Kantor,Arthur J.

Report Date : 06 OCT 1975

Pagination or Media Count : 33

Abstract : Mean monthly atmospheric models are presented which depict the periodic variations in the vertical distributions of temperature, pressure, and density, surface to 90 km, at the equator and 15 deg N. The models are internally consistent and in agreement with available radiosonde and rocket observations of the thermodynamic properties of the tropical atmosphere. In the tropics the combined amplitudes of the annual and semiannual oscillations of density at altitudes between 25 and 80 km are approximately the same magnitude as the diurnal variations. Observed data show that the phase (time of maximum) of the annual temperature and density oscillations between 25 and 90 km is nearly identical at 8 deg S, 9 deg N, and 17 deg N, indicating that the meteorological equator for thermodynamic properties of the atmosphere is 8 to 10 deg south of the geographical equator. (Author)

Descriptors :   *Atmosphere models, *Tropical regions, Low altitude, High altitude, Mesosphere, Stratosphere, Periodic variations, Atmospheric temperature, Barometric pressure, Density, Atmospheric sounding, Thermodynamics, Vertical orientation

Subject Categories : Atmospheric Physics
      Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE