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Some observations of water vapor fluctuations in a stable atmosphere over a lake surface

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Summary

The crain microwave refractometer and a bead thermistor have been used to measure 2 to 30-second period fluctuations in water vapor in a stable atmosphere over a lake surface. It appears that such fluctuations can be related to air flow over water waves and that they permit an estimate of a mixing length for water vapor.

Zusammenfassung

Das Crain-Mikrowellenrefraktometer und ein Perlenthermistor wurden verwendet, um in einer stabilen Atmosphäre über einer Seeoberfläche Wasserdampfschwankungen von 2 bis 30 Sekunden Dauer zu messen. Es scheint, daß solche Schwankungen zur Luftströmung über Wasserwellen in Beziehung gesetzt werden können, und daß sie eine Schätzung des Mischungsweges für Wasserdampf gestatten.

Résumé

Le réfractomètre de Crain et un thermistor ont été utilisés pour mesurer les fluctuations en teneur de vapeur d'eau d'une durée de deux à trente secondes dans un air stable au-dessus d'un lac. Il semble que de telles variations dépendent du mouvement de l'air au-dessus des vagues et qu'elles permettent d'apprécier le parcours de mélange de la vapeur d'eau.

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References

  1. Magee, J. B., andC. M. Crain: A Recording Microwave Hygrometer. Rev. Sci. Inst.29, 51 (1958).

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  2. Crain, C. M.: Apparatus for Recording Fluctuation in the Refractive Index of the Atmosphere. Rev. Sci. Inst.21, 456 (1950).

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  3. Longuet-Higgins, M. S.: On the Statistical Distribution of the Heights of Sea Waves. J. Marine Res.9, 245 (1952).

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  4. Sutton, O. G.: Micrometeorology. New York: McGraw-Hill. 1953.

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Staley, R.C. Some observations of water vapor fluctuations in a stable atmosphere over a lake surface. Arch. Met. Geoph. Biokl. A. 11, 458–464 (1960). https://doi.org/10.1007/BF02246514

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  • DOI: https://doi.org/10.1007/BF02246514

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