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Author: Thomas J. Keegan Publisher: ISBN: Category : Atmospheric circulation Languages : en Pages : 38
Book Description
Some preliminary analysis are presented of the winds and circulations in the mesosphere based upon the first year of data collected by the Meteorological Rocket Network. Differences between winds determined from radar targets released by rockets and those from the conventional balloon technique are discussed briefly. T er atmosphere, Meteorological data, *Sounding rockets, Diurnal variations, North America, *Wind. Open-ended Terms: Mesosphere. Some preliminary analysis are presented of the winds and circulations in the mesosphere based upon the first year of data collected by the Meteorological Rocket Network. Differences between winds determined from radar targets released by rockets and those from the conventional balloon technique are discussed briefly. The scale of seasonal, daily, and vertical wind variations is illustrated by wind profiles and time cross-sections. They demonstrate clearly the seasonal reversal of mesospheric winds and the existence of large, wind-speed variations over periods of only several days. They also reveal that vertical wind shears of 0.030 per sec, and probably greater, exist at about 180,000 ft. A relationship is indicated between mesospheric circulation changes and subsequent tropospheric circulation changes. Examples are shown of the circulation over North America in spring and summer at heights up to 180,000 ft. Analysis of rocket wind-data indicates that the techniques are sound and that much can be learned by more intensive analysis. (Author).
Author: Thomas J. Keegan Publisher: ISBN: Category : Atmospheric circulation Languages : en Pages : 38
Book Description
Some preliminary analysis are presented of the winds and circulations in the mesosphere based upon the first year of data collected by the Meteorological Rocket Network. Differences between winds determined from radar targets released by rockets and those from the conventional balloon technique are discussed briefly. T er atmosphere, Meteorological data, *Sounding rockets, Diurnal variations, North America, *Wind. Open-ended Terms: Mesosphere. Some preliminary analysis are presented of the winds and circulations in the mesosphere based upon the first year of data collected by the Meteorological Rocket Network. Differences between winds determined from radar targets released by rockets and those from the conventional balloon technique are discussed briefly. The scale of seasonal, daily, and vertical wind variations is illustrated by wind profiles and time cross-sections. They demonstrate clearly the seasonal reversal of mesospheric winds and the existence of large, wind-speed variations over periods of only several days. They also reveal that vertical wind shears of 0.030 per sec, and probably greater, exist at about 180,000 ft. A relationship is indicated between mesospheric circulation changes and subsequent tropospheric circulation changes. Examples are shown of the circulation over North America in spring and summer at heights up to 180,000 ft. Analysis of rocket wind-data indicates that the techniques are sound and that much can be learned by more intensive analysis. (Author).
Author: Thomas J. Keegan Publisher: ISBN: Category : Atmospheric circulation Languages : en Pages : 19
Book Description
Some preliminary analysis are presented of the winds and circulations in the mesosphere based upon the first year of data collected by the Meteorological Rocket Network. Differences between winds determined from radar targets released by rockets and those from the conventional balloon technique are discussed briefly. T er atmosphere, Meteorological data, *Sounding rockets, Diurnal variations, North America, *Wind. Open-ended Terms: Mesosphere. Some preliminary analysis are presented of the winds and circulations in the mesosphere based upon the first year of data collected by the Meteorological Rocket Network. Differences between winds determined from radar targets released by rockets and those from the conventional balloon technique are discussed briefly. The scale of seasonal, daily, and vertical wind variations is illustrated by wind profiles and time cross-sections. They demonstrate clearly the seasonal reversal of mesospheric winds and the existence of large, wind-speed variations over periods of only several days. They also reveal that vertical wind shears of 0.030 per sec, and probably greater, exist at about 180,000 ft. A relationship is indicated between mesospheric circulation changes and subsequent tropospheric circulation changes. Examples are shown of the circulation over North America in spring and summer at heights up to 180,000 ft. Analysis of rocket wind-data indicates that the techniques are sound and that much can be learned by more intensive analysis. (Author).
Author: Publisher: ISBN: Category : Mesosphere Languages : en Pages : 92
Book Description
"Meteorological soundings of the upper stratosphere and mesosphere, conducted with in situ rocket techniques during all seasons of the year from several sites, ranging in latitude from 8 deg S to 71 deg N, are analyzed. The resulting data are compiled into mean monthly and seasonal profiles of temperature, pressure, density, and wind for each site and are presented in graphical and tabular form. Analyses of these mean values produced time cross sections, quasi-meridional cross sections, and constant level maps which are included."--NTIS abstract.
Author: PLUMB Publisher: Birkhäuser ISBN: 3034858256 Category : Science Languages : en Pages : 465
Book Description
PAGEOPH, stratosphere, these differences provide us with new evidence, interpretation of which can materially help to advance our understanding of stratospheric dynamics in general. It is now weil established that smaller-scale motions-in particular gravity waves and turbulence-are of fundamental importance in the general circulation of the mesosphere; they seem to be similarly, if less spectacularly, significant in the troposphere, and probably also in the stratosphere. Our understanding of these motions, their effects on the mean circulation and their mutual interactions is progressing rapidly, as is weil illustrated by the papers in this issue; there are reports of observational studies, especially with new instruments such as the Japanese MV radar, reviews of the state of theory, a laboratory study and an analysis of gravity waves and their effects in the high resolution "SKYHI" general circulation model. There are good reasons to suspect that gravity waves may be of crucial significance in making the stratospheric circulation the way it is (modeling experience being one suggestive piece of evidence for this). Direct observational proof has thus far been prevented by the difficulty of making observations of such scales of motion in this region; in one study reported here, falling sphere observations are used to obtain information on the structure and intensity of waves in the upper stratosphere.
Author: B. T. Miers Publisher: ISBN: Category : Languages : en Pages : 26
Book Description
Winds observed in the equatorial mesosphere (60-85 km) during December 1968 at Barbados and January 1969 at Colon, Panama are presented. The data were obtained with the high energy Loki system and gun-launched projectiles which expelled radar-reflective, 0.001 inch diameter glass chaff near an apogee of 85 km. Mean meridional profiles were generally less than 15 m/sec with an extreme value of 50 m/sec. In the mean, westerly components dominated the profiles at both stations, with a maximum of approximately 60 m/sec near 70 km over Panama and 40 m/sec in the 65 km region over Barbados. Zonal wind speeds near 70 km over Panama were about 60 m/sec greater than indicated by previous studies. Mesospheric wind profiles in tropical regions were shown to be influenced by synoptic weather patterns and the diurnal tides. There was evidence that the winter hemispheric westerlies extend into the summer hemisphere at 60 km altitude. (Author).
Author: Thomas J. Keegan
Author: Thomas J. Keegan
Author: Thomas J. Keegan
Author: Boris Lʹvovich Dzerdzeevskiĭ
Author: Karl Rawer
Author: 
Author: PLUMB
Author: 
Author: R. H. Simpson
Author: R. J. Murgatroyd
Author: B. T. Miers