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Author: Arthur J. Kantor
Publisher:
ISBN:
Category : Atmosphere, Upper
Languages : en
Pages : 32
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Book Description
Strong wind and vertical wind shear must be considered for design and operation of vehicles that will either operate in or penetrate the upper stratosphere and mesosphere. Global extremes of these atmosphere parameters are estimated in this report for altitudes above 30 km. For the Northern Hemisphere estimated 90, 95, and 99% winds, related to the windiest months and locations, are provided for altitudes between 30 and 80 km. Speed increases up to about 55 km and appears to decrease thereafter up to at least 75 or 80 km in November, December, and January. The 99% winds can be expected to approach 215 mps near 55 km at certain locations between latitudes 35 and 60N. For the Southern Hemisphere 90, 95, and 99% winds are provided for altitudes between 30 and 60 km. The 99% winds reach roughly 200 mps near 55 km. Since estimates for the Southern Hemisphere are not necessarily representative of either the windiest month or location, results are uncertain and speeds probably will be somewhat larger than indicated. For the same percentiles, 1-km thick vertical wind shears have been estimated for altitudes between 30 and 70 km. Shears generally increase, and maximum values tend to move equatorward with altitude. (Author).
Author: Arthur J. Kantor
Publisher:
ISBN:
Category : Atmosphere, Upper
Languages : en
Pages : 32
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Book Description
Strong wind and vertical wind shear must be considered for design and operation of vehicles that will either operate in or penetrate the upper stratosphere and mesosphere. Global extremes of these atmosphere parameters are estimated in this report for altitudes above 30 km. For the Northern Hemisphere estimated 90, 95, and 99% winds, related to the windiest months and locations, are provided for altitudes between 30 and 80 km. Speed increases up to about 55 km and appears to decrease thereafter up to at least 75 or 80 km in November, December, and January. The 99% winds can be expected to approach 215 mps near 55 km at certain locations between latitudes 35 and 60N. For the Southern Hemisphere 90, 95, and 99% winds are provided for altitudes between 30 and 60 km. The 99% winds reach roughly 200 mps near 55 km. Since estimates for the Southern Hemisphere are not necessarily representative of either the windiest month or location, results are uncertain and speeds probably will be somewhat larger than indicated. For the same percentiles, 1-km thick vertical wind shears have been estimated for altitudes between 30 and 70 km. Shears generally increase, and maximum values tend to move equatorward with altitude. (Author).
Author: H. A. Salmela
Publisher:
ISBN:
Category : Vertical wind shear
Languages : en
Pages : 30
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Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 110
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This bibliography lists all AFCRL in-house reports, journal articles, and contractor reports issued from 1 July to 30 September 1969. Abstracts are included for the in-house and contractor reports.
Author: Arthur J. Kantor
Publisher:
ISBN:
Category : Winds
Languages : en
Pages : 118
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Author:
Publisher:
ISBN:
Category : Environmental geology
Languages : en
Pages : 252
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1368
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Author: Norman Sissenwine
Publisher:
ISBN:
Category : Armed Forces
Languages : en
Pages : 284
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Book Description
The Design Climatology Branch of the Air Force Cambridge Research Laboratories had the scientific responsibility for leading a DoD Task Group effort to revise MIL-STD-210A 'Climatic Extremes for Military Equipment'. This document represents the fruition of the goals of the task group. It relates the background studies supporting the values in MIL-STD-210B, so that MIL-STD-210B users need to consult only this single document for an elaboration on the MIL- STD-210B extremes. In addition, the report contains information on the origin, necessity for and the events leading to a revision of MIL-STD-210A. Discussions of the major changes in the Standard's philosophy and its contents are also provided.
Author:
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 710
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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: Julius Badner
Publisher:
ISBN:
Category : Meteorology in aeronautics
Languages : en
Pages : 84
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