Détermination des flux de vapeur d’eau entre la couche limite planétaire et l’atmosphère libre

D. Guedalia; A. Druilhet; J. Fontan

doi:10.3402/tellusa.v27i6.10183

Détermination des flux de vapeur d’eau entre la couche limite planétaire et l’atmosphère libre

Tellus

Volume 27 (1975): Issue 6

By: D. Guedalia, A. Druilhet and J. Fontan

Open Access

|Jan 1975

Abstract

We have performed a series of measurements of the vertical flux of water vapour between the planetary boundary layer (PBL) and the free atmosphere. The vertical flux has been calculated in the stable layer at the highest level of the PBL (∼ 1 000 to 1 500 m) thanks to the coefficient of matter transfer (determined by the ThB (Pb-212)) and by the water vapour gradient. We have compared these values with the evapotranspiration in the area of measurement. Significant variations of the flux of water vapour at the top of the PBL have been noticed from day to day. They are mainly due to changes in the specific humidity of the air masses above the PBL. The daily results show the flux through the stable layer cannot be neglected as a mechanism of vertical transport of water vapour.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusa.v27i6.10183 | Journal eISSN: 3035-9554

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Language: English

Page range: 552 - 561

Submitted on: Jul 22, 1974

Accepted on: Apr 28, 1975

Published on: Jan 1, 1975

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1975 D. Guedalia, A. Druilhet, J. Fontan, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 27 (1975): Issue 6