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Aircraft measurements of humidity in the low stratosphere over southern England 1972–1976

✍ Scribed by A. P. Cluley; M. J. Oliver

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
807 KB
Volume
104
Category
Article
ISSN
0035-9009

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✦ Synopsis

Abstract

A frost point hygrometer installed in a Canberra aircraft of the Meteorological Research Flight has been used to make measurements of humidity in the high troposphere and low stratosphere. The results from 60 flights over southern England in the period 1972 to 1976 are reported. It is shown that above some level in the stratosphere the humidity mixing ratio (h.m.r.) becomes independent of height; the average h.m.r., by mass, in this region was (3.1±0.3)10^−6^. An annual oscillation in stratospheric h.m.r. of amplitude 0.4 × 10^−6^ and significant at the 5% level is found. The measurements are compared with an average h.m.r. of (1.9±0.2)10^−6^ derived from previous MRF measurements made in 1954 and 1955.

📜 SIMILAR VOLUMES

Some recent measurements of humidity fro
Some recent measurements of humidity from aircraft up to heights of about 50,000 ft over southern England
✍ R. J. Murgatroyd; P. Goldsmith; W. E. H. Hollings 📂 Article 📅 1955 🏛 John Wiley and Sons 🌐 English ⚖ 351 KB

## Abstract The humidity of the air was measured with a pressurized Dobson‐Brewer hygrometer in a Canberra aircraft up to heights of about 50,000 ft over southern England on 35 occasions during 1954. The frost point decreased with increasing height in the stratosphere and usually approached a const