ISEO 27 July 2010 MODAL ANALYSIS APPLIED TO THE STUDY OF THE
INTERNAL WAVE STRUCTURE OF ISEO LAKE GIULIA VALERIO Universit degli
Studi di Brescia
Slide 2
Csanady (1972) - Buerle (1994) - Wang et al. (2000) - Fricker
and Nepf (2000) - Lemmin and Mortimer (2005) - Antenucci and
Imberger (2001) - Gomez-Giraldo et al. (2006) - Rueda et. al (2003)
- Shimizu et al. (2007) Okely et al. (2010) QUESTION - How does a
so complex bathymetry affect the internal wave structure in lake
Iseo?
Slide 3
NUMERICAL APPROACH - Modal model Mortimer (1974) - Lemmin and
Mortimer (2005) - Shimizu et al. (2007) Shumizu and Imberger (2008)
De la Fuente et al. (2008) Linear Linear Separation in time and
space Separation in time and space Eigenvalue problem
Slide 4
MODEL EXPERIMENTAL APPROACH - Field activity Becker and Miles
(1991) Strub and Powell (1986) - Rueda et al. (2005) - Strub
(1986)- Laval et al. (2003), Pan et al. (2002) - Shimizu et al.
(2007) - Buerle (1994) - Okely et al. (2010) Forced waves -
dominant mode 1 Forced waves - dominant mode 1 Influence of spatial
variability of wind field on modes excitation Influence of spatial
variability of wind field on modes excitation Poincar waves trapped
Poincar waves trapped around the island Locations of the monitoring
stations Locations of the monitoring stations Sampling strategy for
temperature mapping Sampling strategy for temperature mapping
www.rmso.com.au www.rmso.com.auwww.rmso.com.au
Slide 5
FIELD ACTIVITY MODEL General agreement of the main basin scale
motion (Cfr 17/7 T3; 18/7 T17) General agreement of the main basin
scale motion (Cfr 17/7 T3; 18/7 T17) Problems in phase capturing in
the south (Cfr olaris) non-uniform wind distribution? Problems in
phase capturing in the south (Cfr olaris) non-uniform wind
distribution? Excitation of vertical modes > 1 (Cfr 20/7 T22)
necessity number of layers > 2 when the upper layer is shallow
Excitation of vertical modes > 1 (Cfr 20/7 T22) necessity number
of layers > 2 when the upper layer is shallow Non-linearity of
the singnal limitations of the linear model Non-linearity of the
singnal limitations of the linear model Thanks for your
attention!