Measurements of gas exchange and momentum transfer in a circular wind-water tunnel

B. Jähne; K. O. Münnich; U. Siegenthaler

doi:10.3402/tellusa.v31i4.10440

Measurements of gas exchange and momentum transfer in a circular wind-water tunnel

Tellus

Volume 31 (1979): Issue 4

By: B. Jähne, K. O. Münnich and U. Siegenthaler

Open Access

|Jan 1979

Abstract

Gas exchange and momentum transfer have been studied by means of a small circular wind-water tunnel. Gas transfer velocity and friction velocity first grow linearly with wind speed. At a critical wind speed, with the onset of rough waves, both increase abruptly. The experiments clearly show the enhancement of air-water exchange processes by waves. Experimental conditions were varied-nitrogen/carbon dioxide atmosphere, temperature, circulation of water unconfined/confined by a dam-and found to influence gas exchange. This, and the differing results of various authors demonstrate that gas exchange is not a function of wind speed alone, nor of friction velocity, but that further parameters, such as wave spectra, have to be considered as well.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusa.v31i4.10440 | Journal eISSN: 3035-9554

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Language: English

Page range: 321 - 329

Submitted on: Oct 11, 1978

Published on: Jan 1, 1979

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1979 B. Jähne, K. O. Münnich, U. Siegenthaler, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 31 (1979): Issue 4