Studies of the upper atmosphere

Type of content
Theses / Dissertations
Publisher's DOI/URI
Thesis discipline
Physics
Degree name
Doctor of Philosophy
Publisher
University of Canterbury
Journal Title
Journal ISSN
Volume Title
Language
English
Date
1965
Authors
Fraser, G.J.
Abstract

In an attempt to make synoptic observations of winds in the mesosphere and lower thermosphere, a simplified version of the correlation method for analysing spaced receiver ionosphere drift observations was developed. The new method makes possible the use of much simpler recording methods and eliminates the manual reduction of records. Drift observations made at noon between altitudes of 65 and 100 km, for summer 1963-4 and winter 1964 are presented. It is concluded that the mean monthly drift is a good estimate of the winds at these heights. The most prominent feature of the seasonal circulation is the upward progression of the height of reversal from westerlies (below) to easterlies (above) from 80 km in April to 100 km in July. The reversal height falls to 90 km in August and September.

Description
Citation
Keywords
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Rights
All Rights Reserved