Abstract: Knowledge of the air density at altitudes above 30 km is needed for such applications as the calculation of space shuttle reentry heating. A method is described for deriving hemispheric (or global) horizontal density fields ...

Abstract: Satellite-measured radiances offer the first opportunity for investigating the total structure of winter stratospheric warmings, a phenomenon whose cause is still unknown despite intensive study since 1952, Vertical ...

Abstract: No abstract available.

Abstract: No abstract available.

Abstract: Knowledge of the horizontal variation of density is required in a number of problems, such as the calculation of aerodynamic heating rates of lifting reentry vehicles in near-horizontal flight. On constant-pressure surfaces ...

Abstract: Relationships among the high-latitude stratospheric zonal wind, the tropospheric zonal wind in the region of the subtropical jet and over the equator, the Southern Oscillation, and the stratospheric tropical quasi-biennial ...

Abstract: In preference to the use of persistent height anomalies for determining the presence of blocking, new criteria were developed which take the observed flow conditions into account. These criteria were applied daily at 500 ...

Abstract: A major warming above the 10-mb level in February 1966 is described with the aid of rocket data from high-latitude stations at Heiss Island (81° N.) and Churchill (59° N.), together with high-level radiosonde reports from ...

Abstract: The period of the stratospheric quasi-biennial oscillation (QBO) in zonal wind is studied with the aid of rocket observations at Kwaialein (9°N, 168°N) for altitudes 25?35 km and rawinsonde observations for Balboa (9°N, ...

Abstract: Rocket wind soundings for several stations within 10° latitude of the equator are used to analyze details of the structure of the recently discovered semi-annual wind variation in the equatorial upper stratosphere. The ...