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Scaling Properties of Ph Fluctuations in Coastal Waters of the English Channel: Ph as a Turbulent Active Scalar : Volume 18, Issue 6 (16/11/2011)

By Zongo, S. B.

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Book Id: WPLBN0003983017
Format Type: PDF Article :
File Size: Pages 11
Reproduction Date: 2015

Title: Scaling Properties of Ph Fluctuations in Coastal Waters of the English Channel: Ph as a Turbulent Active Scalar : Volume 18, Issue 6 (16/11/2011)  
Author: Zongo, S. B.
Volume: Vol. 18, Issue 6
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Zongo, S. B., & Schmitt, F. G. (2011). Scaling Properties of Ph Fluctuations in Coastal Waters of the English Channel: Ph as a Turbulent Active Scalar : Volume 18, Issue 6 (16/11/2011). Retrieved from

Description: Univ. Lille Nord de France, 59000 Lille, France. We consider here pH and temperature fluctuations in marine waters, recorded at fixed points using high resolution automatic devices. We analyze time series coming from 4 monitoring stations located along French coast: one station is situated in the coastal area off Boulogne-sur-mer (Eastern English Channel) and 3 stations in the Bay of Seine. All these pH time series reveal large fluctuations at all scales similar to turbulent temperature fluctuations. We compare the pH and temperature time series through Fourier spectral analysis methods: spectra, compensated spectra, cospectra. We find good scaling properties of pH fluctuations, with power spectral slopes close to 1.5 for marine stations and 1.2 for the estuarine station. These analyses show that pH fluctuations in marine waters are strongly influenced by turbulent hydrodynamical transport, and may be considered as a turbulent active scalar.

Scaling properties of pH fluctuations in coastal waters of the English Channel: pH as a turbulent active scalar

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