Temperature Frequencies Near the Flight Level of S.S.T. Aircraft

Temperature frequencies near the flight level of S.S.T. aircraft are here treated with regard to the areas Western Europe–North America–North Pacific. The used values are taken from charts of the 50-mb level (ca. 20 km.). They are divided into three groups: (1) Temperatures higher than standard temp...

Full description

Bibliographic Details
Published in:Journal of Navigation
Main Author: Wehry, Werner
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1968
Subjects:
Online Access:http://dx.doi.org/10.1017/s0373463300024747
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0373463300024747
Description
Summary:Temperature frequencies near the flight level of S.S.T. aircraft are here treated with regard to the areas Western Europe–North America–North Pacific. The used values are taken from charts of the 50-mb level (ca. 20 km.). They are divided into three groups: (1) Temperatures higher than standard temperature, i.e. higher than - 56° C (Figs. 1, 2) showing very clearly the big North Pacific warm area, (2) values higher than -46° C (standard temperature plus 10° C) (Figs. 3, 4), mostly expressing the polar warming in summer, and (3) temperatures lower than -65° C (Fig. 5), only occurring in winter and concentrated in the European sector of the Arctic. These effects are described along some flight routes.