Hydrodynamical Normal Mode Estimation on the INTIFANTE'00 data set

O. Rodríguez,
SiPLAB - FCT, University of Algarve
Campus de Gambelas,
PT-8000 Faro, Portugal

Comments: download file (pdf )
Ref.: SiPLAB Report 04/01, University of Algarve, 2001.

Abstract: Dynamic modes are important to describe the motion of a uid and can be easily derived in the hydrostatic and non-hydrostatic linear cases from the general equations of uid dynamics, neglecting the e ects of friction and viscosity. In general the dynamic modes can be used to describe in detail the  elds of pressure, density and currents. However, as will be shown in the following chapter, dynamic modes can be used to introduce a semi- orthogonal representation of the temperature, salinity and sound speed  elds, which are the fundamental objects of interest in acoustic tomography. This internal report describes the theoretical background behind the description of dynamic modes, their relationship to temperature and sound speed, and also describes the numerical methods that allow to calculate a particular set of dynamic modes from a single temperature profile.

ACKNOWLEDGMENT: this work was partially  supported by ATOMS (FCT, Portugal) and TOMPACO projectos (CNR, Italy).