Accession Number : AD0651913

Title :   MEAN MONTHLY ATMOSPHERES FOR 15 DEGREES N.

Descriptive Note : Air Force Surveys in Geophysics No. 189,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Cole,Allen E.

Report Date : FEB 1967

Pagination or Media Count : 30

Abstract : The family of mean monthly atmospheric models presented in this report describe the vertical distribution of pressure, temperature, and density, at 15 degrees N, from the surface to 80 km. The models are internally consistent and are in agreement with observed winds, temperatures, and densities for the region between the equator and 30 degrees latitude. The amplitudes and phase angles of annual and semiannual oscillations in temperature and density at levels between 30 and 80 km are examined. Seasonal variability is less at 15 degrees N than at 30 degrees N. Day-to-day variability of density due to synoptic changes appears to be of approximately the same magnitude as the seasonal variability at this latitude. Observations indicate that densities between 40 and 80 km have a diurnal range of 5 to 10 percent of the daily mean. (Author)

Descriptors :   (*ATMOSPHERE MODELS, TROPICAL REGIONS), (*TROPICAL REGIONS, METEOROLOGICAL PHENOMENA), ATMOSPHERIC TIDES, UPPER ATMOSPHERE, WIND, ATMOSPHERIC TEMPERATURE, BAROMETRIC PRESSURE, DENSITY

Subject Categories : Atmospheric Physics
      Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE