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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 217 records · Page 12

Joint measurements of wind and temperature structure in the winter mesosphere at high latitudes

An attempt to identify propagating internal gravity waves in the mesosphere was made by sounding the region with three instrumented rockets on January 13-14, 1970, from Churchill, Canada (59 N). The three observations, which were conducted at approximately 90 min. intervals, consisted of a pitot probe bracketed by two acoustic grenade soundings. Thus, two temperature and wind profiles and one density profile were obtained independently, permitting an examination of the thermodynamic structure and the wind structure. The results of the combined thermodynamic and wind observations were found to be quantitatively compatible with a gravity wave interpretation. This interpretation also predicts vertical velocities on the order of 10/msec in the 80 km region.

Eberstein, I. J.↗

The mean observed meteorological structure and circulation of the stratosphere and mesosphere

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.

Theon, J. S.↗