Abstract: An analysis of the wave motions observed with the Poker Flat MST radar during the winter, summer, and fall of 1986 is presented in this paper. Monthly and daily mean winds, momentum fluxes, and velocity variances are ...

Abstract: An analysis of gravity wave-tidal interaction observed near the mesopause by the MST radar at Poker Flat in July of 1986 is presented. Our observations revealed daily mean wind maxima of ?60 m s?1 westward and 20 m s?1 ...

Abstract: Frequency spectra of horizontal and vertical velocities were inferred from MST radar observations near the summer mesopause at Poker Flat, Alaska. Height variations of the frequency spectra revealed only slight growth of ...

Abstract: This study presents an analysis of density measurements made using high-resolution accelerometers aboard several space shuttles at altitudes from 60 to 140 km during reentry into the earth's atmosphere. The observed density ...