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Author: Allen E. Cole
Publisher:
ISBN:
Category : Atmospheric density
Languages : en
Pages : 132
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Book Description
Author: Allen E. Cole
Publisher:
ISBN:
Category : Atmospheric density
Languages : en
Pages : 132
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Book Description
Author: Arnold Court
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Geographical, seasonal, and day-to-day variations in the vertical distribution of atmospheric density for altitudes up to 30 km are analyzed. Variability is least at 7 to 8 km, the isopycnic level, where densities do not depart from the standard by more than 1 or 2 percent in any season or area. Between 24 and 26 km, density changes little with latitude but markedly with season. At the level of greatest seasonal variability, around 15 km, the relative departures from standard of mean seasonal densities is strictly according to latitude. Largest negative departures occur at the northernmost location; largest positive, at the southernmost. The greatest difference between the two extreme profiles, nearly 20 percent, occurs in winter. The largest day-to-day variations around monthly means occur near the tropopause. Coefficients of variation range from approximately 2 percent at Tampa in the summer to 6 percent at St. Paul Island in the winter. Although the correlation of density with wind speed is significant statistically, and of theoretical interest, it may have little practical importance in the design of aerospace vehicles.
Author: Allen E. Cole
Publisher:
ISBN:
Category : Atmosphere, Upper
Languages : en
Pages : 132
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Book Description
Author: Arthur J. Kantor
Publisher:
ISBN:
Category : Sounding rockets
Languages : en
Pages : 118
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Book Description
Information is provided in this report on the interlevel correlations of the east/west and north/south wind components for altitudes between the surface and 60 km, with special emphasis on levels between 25 km and 60 km. Mean monthly wind speeds and day-to-day variations due to synoptic changes in weather patterns are included. Estimates are also given of the probability of extreme wind speeds at specific locations and altitudes up to 60 km. A statistical technique that can be used to obtain estimates of the integrated effect of wind on the trajectories and impact points of reentry vehicles is presented, and an example of its application is given. These effects due to the winds must be considered, along with the density effects, in the design and operation of guidance systems for reentry vehicles and for targeting ballistic missiles.
Author: Allen E. Cole
Publisher:
ISBN:
Category : Atmospheric density
Languages : en
Pages : 88
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Book Description
Author:
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 220
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Book Description
Author: Allen E. Cole
Publisher:
ISBN:
Category : Atmosphere, Upper
Languages : en
Pages : 52
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Book Description
Sets of mean monthly reference atmospheres that describe seasonal changes in the vertical distributions of temperature, density, and pressure at altitudes up to 90 km are presented for latitudes 60 deg N and 75 deg N. Also provided are specialized atmospheric models that reflect longitudinal differences in the vertical structure of temperature and density at these latitudes. Estimates of the seasonal, day-to-day, diurnal, and spatial variations are given with special emphasis placed on density. (Author).
Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 264
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Author: Ralph J. Donaldson
Publisher:
ISBN:
Category : Radar meteorology
Languages : en
Pages : 122
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Author: William P. Elliott
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 66
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Book Description
