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- Author or Editor: N. J. Beyers x
- Journal of Applied Meteorology and Climatology x
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Abstract
Rocketsonde wind and temperature measurements from most of the National Meteorological Rocket Network (or simply Rocket Network) stations are studied. In the altitude region considered, there were over 1100 wind measurements and some 200 temperature soundings. This includes Rocket Network data through August 1962 and a few 1957 and 1958 soundings taken prior to the initiation of the Rocket Network. A simple statistical treatment has been used to determine mean temperatures and mean wind speeds, components, shears, and a measure of variability. The wind data presented generally support previously constructed cross sections of the wind regime over North America. A significant mass transport from subtropical to midlatitudes was indicated. The meridional component of the subtropical wind did not reverse direction with the seasonal change in the zonal wind. In the subpolar stratosphere the seasonal changes of temperature are much more pronounced; the summer is warm (near subtropical values) and the winter much colder. The subtropical summer temperatures were found to be colder than the subtropical winter temperatures. There is still a significant disagreement as to the more refined temperature structure of the subtropical region.
Abstract
Rocketsonde wind and temperature measurements from most of the National Meteorological Rocket Network (or simply Rocket Network) stations are studied. In the altitude region considered, there were over 1100 wind measurements and some 200 temperature soundings. This includes Rocket Network data through August 1962 and a few 1957 and 1958 soundings taken prior to the initiation of the Rocket Network. A simple statistical treatment has been used to determine mean temperatures and mean wind speeds, components, shears, and a measure of variability. The wind data presented generally support previously constructed cross sections of the wind regime over North America. A significant mass transport from subtropical to midlatitudes was indicated. The meridional component of the subtropical wind did not reverse direction with the seasonal change in the zonal wind. In the subpolar stratosphere the seasonal changes of temperature are much more pronounced; the summer is warm (near subtropical values) and the winter much colder. The subtropical summer temperatures were found to be colder than the subtropical winter temperatures. There is still a significant disagreement as to the more refined temperature structure of the subtropical region.
Abstract
A balloon, the second In a series of high-altitude balloon flights, was launched to a record altitude of 50 km from White Sands Missile Range, N.M., on 22 September 1969. The 8.7 × 105 cubic meter, helium-filled, zero-pressure, polyethelene balloon served as a constant-level stable support for an instrument payload consisting of bead thermistor atmospheric and balloon-skin temperature sensors, thermal conductivity pressure gage, a forward-scattering beta-ray atmospheric density gage, chemiluminescent ozonesondes, a Geiger tube cosmic ray detector, and an accelerometer for the determination of the vertical component of balloon acceleration. Radar position-time data served to determine the wind velocity. Seven hours and 40 minutes of data were obtained from the various instruments at a near-constant altitude of 49 km (± 1 km). This paper discusses specifically the variations in the observed balloon trajectory, the supporting rocketsonde-determined winds, and the balloon-borne temperature sensor values as related to the existence of a diurnal atmospheric tide near 50 km. It also presents the related data obtained from the other instruments comprising the payload.
Abstract
A balloon, the second In a series of high-altitude balloon flights, was launched to a record altitude of 50 km from White Sands Missile Range, N.M., on 22 September 1969. The 8.7 × 105 cubic meter, helium-filled, zero-pressure, polyethelene balloon served as a constant-level stable support for an instrument payload consisting of bead thermistor atmospheric and balloon-skin temperature sensors, thermal conductivity pressure gage, a forward-scattering beta-ray atmospheric density gage, chemiluminescent ozonesondes, a Geiger tube cosmic ray detector, and an accelerometer for the determination of the vertical component of balloon acceleration. Radar position-time data served to determine the wind velocity. Seven hours and 40 minutes of data were obtained from the various instruments at a near-constant altitude of 49 km (± 1 km). This paper discusses specifically the variations in the observed balloon trajectory, the supporting rocketsonde-determined winds, and the balloon-borne temperature sensor values as related to the existence of a diurnal atmospheric tide near 50 km. It also presents the related data obtained from the other instruments comprising the payload.
