Xavier Casamitjana Physics Professor Departament de Física i Institut de Medi Ambient Campus de Montilivi Universitat de Girona 17071 Girona Catalonia- Spain tel: 972419761 fax: 972418098 e-mail: xavier.casamitjana(@)udg.edu

Contents:

1- Background	4- Selected publications
2- Research interests	5- The music of Lakes
3- Lakes and reservoirs	6- Personal web page

1- Background:

Born in 1958
Degree in Theoretical Physics in 1982 at the Autonomous University of Barcelona
PHD in 1989 in Hydrodynamics of Lake Banyoles
Visiting Prof. in 1990 at the Centre for Water Research (Prof. Jorg Imberger)
Visiting Prof. in 1994 and 1999  at the University of California- Davis (Prof. Geoffrey Schladow)
Visiting Prof. in 1997  at the University of Arizona (Prof. Joe Fernando)
Visiting Prof. in 2005 at the M.I.T. (Prof. Heidi Nepf)

2- Research interests:

Hydrodynamics of Lakes and reservoirs
Water Quality
Internal waves

3-Lakes and reservoirs

Lake Banyoles	Sau reservoir	Boadella reservoir

4- Selected Publications

Casamitjana, X., Roget, E, Jou, D. and Llebot, J.E. Effect of the suspended sediment in the heating of Lake Banyoles. Journal of Geophysical Research, 93, C8 9332-36, 1988.

Casamitjana, X. and Roget, E. Resuspension of sediments by focussed groundwater Limnology and Oceanography  38(3), 643-656, 1993.

Casamitjana, X. and Schladow, G. Vertical distribution of particles in a stratified lake. Journal of Environmental Engineering .119 (3), 443-462, 1993.

Casamitjana, X., Roget, E. and Schladow, G. The seasonal cycle of a groundwater dominated lake. Journal of Hydraulic Research. 31(3), 293-306, 1993.

Roget, E., Colomer, J. and Casamitjana, X. Bottom currents induced by baroclinic forcing in Lake Banyoles (Spain). Aquatic Sciences, 55 (3), 1993

Colomer, J., Roget, E. and  Casamitjana, X. A daytime heat balance for estimating non radiative fluxes of lake Banyoles, Spain. Hydrological Processes, 10, 721-726, 1996

Garcia-Gil, L.J., Casamitjana, X. and Abella, C.A. Comparative study of two meromictic basins of lake Banyoles (Spain) with sulphur phototropic bacteria. Hydrobiologia , 319, 203-211, 1996

Casamitjana, X.,Colomer, J., Roget, and Serra,T. On the presence of aggregates in the basins of Lake Banyoles Geophysical Research Letters, 23,  20, 2737-2740, 1996.

Serra, T., Colomer, J.and Casamitjana, X. Aggregation and break up of particles in a shear flow. Journal of Colloid and Interfase science,187,  466-473, 1997.

Serra, T. and Casamitjana, X.  The effect of the shear and the volume fraction on the aggregation and break-up of aggregates. American  Internatl. chemical Eng. Journal. AIChE,  44, 8, 1724-1730, 1998

Serra, T. and Casamitjana, X. Structure of fractal agreggates during the process of aggregation and break-up under a shear flow.  Journal of Colloid and Interfase science, 206, 505-511, 1998.

Colomer, J. Ross, J.A. and Casamitjana, X. Sediment entrainment in karts basins.  Aquatic Sciences, 60, 4, 338-358, 1998

Casamitjana, X., Colomer, J. and Fernando, H.J.S. Fluidization of sediments in a conical basin by subterranean springs: relevance to lake Banyoles. Aquatic Sciences, 62, 79-90, 2000

Colomer, J, Serra, T., Piera, J., Roget, E. and Casamitjana, X. Observations of an hydrothermal plume in a karstic lake. Limnology and Oceanography. 46, 1, 197-203, 2001.

Granata, T.C., Duarte, C.M. Gacia, E., Serra, T. Colomer, J. and Casamitjana, X.  Flow  and particle distribution in a nearshore seagrass meadow before and after a storm. Marine Ecology Progress Series, 298, 95-106,  2001.

Serra, T., Colomer, J., Cristina, X.P., Vila, X., Arellano, J.B. and Casamitjana, X. Evaluation of a laser 'in situ' scattering instrument for measuring the concentration of phytoplankton, purple sulfur bacteria and suspended inorganic sediments in lakes. Journal of Environmental Engineering . November, 1023-1030, 2001.

Serra, T., Casamitjana, X , Colomer, J.. and Granata, T. A laser analyzer for in situ determining the bottom and vertical particle size distribution and concentration in a coastal system. Marine Technology Society Journal (MST), 36, 1, 59-69, 2002.

Serra, T., Colomer, J. Zamora, L., Moreno Amich, R. and Casamitjana, X. Seasonal development of a turbid hydrothermal plume in a lake. Water Research,  36, 11,  2753-2760, 2002.

Casamitjana, X., Serra, T., Soler, M., Colomer, J. A study of the evolution of a particle boundary layer in a reservoir, using laser particle sizing. Water Research, 36, 17, 4293-4300. 2002. The article.

Colomer, J., Serra, T., Soler, M. and Casamitjana, X. Sediment fluidization in a lake caused by monthly rainfalls. Geophysical Research Letters, 29, 8, 101, 2002. The article.

Serra, T., Colomer, J., Gacia, E., Soler, M. And Casamitjana, X. Effects of a turbid hydrothermal plume on the sedimentation rates in a karstic lake. Geophysical Research Letters, 29, 21, 25, 2002. The article.

Colomer, J., Serra, T., Baserba, C., Soler, M. and Casamitjana, X. Quantified distribution of diatoms during the stratified period in Boadella reservoir. Hydrobiologia, 489, 235-244, 2002. The article.

Serra, T., Colomer, J., Stips, A. Mohlenberg, F. and Casamitjana, X. The role of advection and turbulent mixing in the vertical distribution of phytoplankton Estuarine, Coastal and Shelf Science, 56, 53-62, 2003. The article.

Perez-Losada, J., Roget, E. and Casamitjana, X.  Evidence of High Vertical wave-number behaviour in a continuously stratified reservoir. Journal of Hydraulic Engineering, 129, 9,734-737, 2003. The article.

Serra, T, Colomer, J., Soler, M. and Casamitjana, X. and. Hydrothermal plumes trapped by thermal stratification Geophysical Research Letters , 30, 21, 2092, 2003. The article.

Casamitjana, X, Serra, T., Baserba, C. Perez-Losada, J. Effects of the water withdrawal on the stratification patterns of a reservoir. Hydrobiologia, 504, 21-28, 2003. The article.

Vidal, J., Casamitjana, X. Colomer, J, and Serra, T. The internal wave field in Sau reservoir. Observation and modelling of a third vertical mode.  Limnology and Oceanography, 50, 4, 1326-1333, 2005. The article.

Serra, T., Colomer, J., Soler, M., Julià, R. and Casamitjana, X. Behaviour and dynamics of a hydrothermal plume in Lake Banyoles, Catalonia, NE Spain. Sedimentology, 52, 4, 795-808, 2005. The article.

Serra T. J. Vidal, X. Casamitjana, M. Soler and J. Colomer. The role of surface vertical mixing on the phytoplankton distribution in a stratified reservoir. Limnology and Oceanography, 52, 2, 620-634,  2007. The article.

Vidal, J, Rueda, F. and X.Casamitjana.  The seasonal evolution of high vertical- mode internl waves  in a deep reservoir. Limnology and Oceanography, 52, 6, 2656-2667,  2007. The article.

Vidal, J. and X. Casamitjana. Forced resonant oscillations as a response to periodic winds in a stratified reservoir. Journal of Hydraulic Engineering, 134 , 4, 416-425,, 2008. The article.

Soler, M,  Serra, T.,  Casamitjana, X., Colomer, J.. High sedimentation rates in a karstic lake associated with hydrothermal turbid plumes (Lake Banyoles, Catalonia, NE Spain). Sedimentari Geology,  5-15, 2009. The article.

5- The music of Lakes

Are the lakes like guitars or musical instruments? Our recent research (*) make us think that the answer is Yes. Click on the image to hear The music of Lakes *- Vidal, J., Casamitjana, X. Colomer, J, and Serra, T. The internal wave field in Sau reservoir. Observation and modelling of a third vertical mode.  Limnology and Oceanography, 50, 4, 1326-1333, 2005.