HR: 08:00h
AN: OS41A-01 INVITED     [Abstracts]
TI: Ocean Models and Proper Orthogonal Decomposition
AU: * Salas-de-Leon, D A
EM: salas@mar.icmyl.unam.mx
AF: Instituto de Ciencias del Mar y Limnologia de la UNAM, Circuito Exterior S/N Cd. Universitaria, Mexico, DF 04510, Mexico
AB: The increasing computational developments and the better understanding of mathematical and physical systems resulted in an increasing number of ocean models. Long time ago, modelers were like a secret organization and recognize each other by using secret codes and languages that only a select group of people was able to recognize and understand. The access to computational systems was reduced, on one hand equipment and the using time of computers were expensive and restricted, and on the other hand, they required an advance computational languages that not everybody wanted to learn. Now a days most college freshman own a personal computer (PC or laptop), and/or have access to more sophisticated computational systems than those available for research in the early 80's. The resource availability resulted in a mayor access to all kind models. Today computer speed and time and the algorithms does not seem to be a problem, even though some models take days to run in small computational systems. Almost every oceanographic institution has their own model, what is more, in the same institution from one office to the next there are different models for the same phenomena, developed by different research member, the results does not differ substantially since the equations are the same, and the solving algorithms are similar. The algorithms and the grids, constructed with algorithms, can be found in text books and/or over the internet. Every year more sophisticated models are constructed. The Proper Orthogonal Decomposition is a technique that allows the reduction of the number of variables to solve keeping the model properties, for which it can be a very useful tool in diminishing the processes that have to be solved using "small" computational systems, making sophisticated models available for a greater community.
DE: 0545 Modeling (4255)
DE: 0560 Numerical solutions (4255)
DE: 4255 Numerical modeling (0545, 0560)
SC: Ocean Sciences [OS]
MN: 2007 Joint Assembly