https://doi.org/10.4081/aiol.2014.5356

Diurnal variation of turbulence-related quantities in Lake Garda

Vol. 5 No. 2 (2014)
Submitted: 8 June 2015
Accepted: 8 June 2015
Published: 4 December 2014
turbulence, stratification, microstructure profiler, plankton, chlorophyll-a, remote sensing, Lake Garda
Abstract Views: 3488
HTML: 315
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Authors

W.K. Lenstra
Institute for Marine and Atmospheric Research Utrecht, Center for Extreme Matter and Emergent Phenomena, Utrecht University, Netherlands.
L. Hahn-Woernle
l.hahn-woernle@uu.nl
Institute for Marine and Atmospheric Research Utrecht, Center for Extreme Matter and Emergent Phenomena, Utrecht University, Netherlands.
E. Matta
Italian National Research Council – Institute for the Electromagnetic Sensing of the Environment, Milano, Italy.
M. Bresciani
Italian National Research Council – Institute for the Electromagnetic Sensing of the Environment, Milano, Italy.
C. Giardino
Italian National Research Council – Institute for the Electromagnetic Sensing of the Environment, Milano, Italy.
N. Salmaso
Sustainable Agro-ecosystems and Bioresources Department, IASMA Research and Innovation Centre, Istituto Agrario de S. Michele all’Adige – Fondazione E. Mach, Trento, Italy.
M. Musanti
Italian National Research Council – Institute for the Electromagnetic Sensing of the Environment, Milano, Italy.
G. Fila
Italian National Research Council – Institute for the Electromagnetic Sensing of the Environment, Milano, Italy.
R. Uittenbogaard
Deltares, Delft, Netherlands.
M. Genseberger
Deltares, Delft, Netherlands.
H.J. van der Woerd
Institute for Environmental Studies (IVM), Amsterdam, Netherlands.
H.A. Dijkstra
Institute for Marine and Atmospheric Research Utrecht, Center for Extreme Matter and Emergent Phenomena, Utrecht University, Netherlands.
To determine diurnal variations in the physical and biological state of Lake Garda in early spring, high-resolution measurements were made of the vertical distribution of temperature and fluorescence in the upper 100 meters during 5–7 March 2014. In this paper, the results of these measurements are presented and a preliminary analysis that focuses on the connection between the vertical mixing coefficient KT and the chlorophyll-a (chl-a) concentration is given. From these first direct measurements of turbulence-related quantities in Lake Garda, it is found that mixed-layer values of KT decrease, while surface chl-a concentrations increase, over the day. Variations in KT can be connected to the changes in the surface wind stress, while variations in chl-a are negatively correlated with the amplitude of KT. In addition, satellite observations of the surface chl-a concentration are analysed to test their use for the calibration of the fluorescence measurements and also for their potential utility in remotely determining vertical mixing in the upper layers of the lake.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.

Citations

Crossref
Scopus
Google Scholar
Europe PMC

How to Cite

Lenstra, W., Hahn-Woernle, L., Matta, E., Bresciani, M., Giardino, C., Salmaso, N., Musanti, M., Fila, G., Uittenbogaard, R., Genseberger, M., van der Woerd, H., & Dijkstra, H. (2014). Diurnal variation of turbulence-related quantities in Lake Garda. Advances in Oceanography and Limnology, 5(2), 184–203. https://doi.org/10.4081/aiol.2014.5356

PAGEPress has chosen to apply the Creative Commons Attribution NonCommercial 4.0 International License (CC BY-NC 4.0) to all manuscripts to be published.