Abstract
IN a letter in NATURE of February 10 Mr. Whipple suggests that a comparatively sudden increase in temperature of the air at a height of about 60 kilometres, such as observations of meteors render likely, would account for the well-known zones of audibility and silence. This seems to us a promising line of investigation, which might enable one to determine annual variations of temperature, if any. We had already examined the possibility of using meteor observations for this purpose, but they are as yet scarcely sufficiently accurate to enable one to determine the small differences involved. The same applies to the suggestion of Mr. Deeley in NATURE of January 20.
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LINDEMANN, F., DOBSON, G. The High Temperature of the Upper Atmosphere. Nature 111, 256 (1923). https://doi.org/10.1038/111256c0
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DOI: https://doi.org/10.1038/111256c0
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