Overview
- Authors:
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Michael Gadsden
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Department of Natural Philosophy, University of Aberdeen, Aberdeen, Scotland
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Wilfried Schröder
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Bremen-Rönnebeck, Germany
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Table of contents (11 chapters)
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- Michael Gadsden, Wilfried Schröder
Pages 1-12
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- Michael Gadsden, Wilfried Schröder
Pages 13-22
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- Michael Gadsden, Wilfried Schröder
Pages 23-42
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- Michael Gadsden, Wilfried Schröder
Pages 43-57
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- Michael Gadsden, Wilfried Schröder
Pages 58-74
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- Michael Gadsden, Wilfried Schröder
Pages 75-86
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- Michael Gadsden, Wilfried Schröder
Pages 87-96
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- Michael Gadsden, Wilfried Schröder
Pages 97-107
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- Michael Gadsden, Wilfried Schröder
Pages 108-124
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- Michael Gadsden, Wilfried Schröder
Pages 125-130
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- Michael Gadsden, Wilfried Schröder
Pages 131-148
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Back Matter
Pages 149-165
About this book
An atmospheric phenomenon is considered as 'explained' when we have succeeded in deducing it on the basis of accepted principles of physics. (H. Ertel, Methods and problems of dynamical meteorolo gy,p. l) Until recently, noctilucent clouds were regarded merely as a curious atmos pheric phenomenon, the occurrence of which aroused only limited scientific attention. However, in the last two decades the interest they have been given has markedly increased. The clouds, usually pale blue in colour, may be seen on a clear night at high latitudes. Typical examples are illustrated in the book. Clouds looking like these in daytime would be classified as cirrostratus. What sets noctilucent clouds apart is their occurrence in the middle of the night, their very obvious pale blue colour, and their disappearance into the dawn close to the onset of civil twilight when the Sun is 6° below the horizon. as being set apart from ordinary Noctilucent clouds were first recognized clouds in 1884/1885 and in a series of sightings that followed their return in the summer of 1885. That year marked the beginning of observations and the interpretation of twilight phenomena. The impetus came from the extraordi nary Krakatoa eruption, which was not only one of the most spectacular volcanic eruptions in recorded history, but which also turned out to be a startling event in atmospheric science with repercussions even in our time.
Authors and Affiliations
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Department of Natural Philosophy, University of Aberdeen, Aberdeen, Scotland
Michael Gadsden
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Bremen-Rönnebeck, Germany
Wilfried Schröder
