Templex-detected patterns and their connection to elephant seal behaviour

The topological approach called templex (Char´o et al., 2022) introduces the use of a cell complex endowed with a directed graph to characterize the structure of a flow in phase space. Templexproperties are shared by fluid particles exhibiting a certain qualitative behavior, and therefore can be use...

Full description

Bibliographic Details
Main Authors: Bonel, Juan Cruz, Bodnariuk, Nicolas, Charó, Gisela, Guinet, Christophe, Saraceno, Martín, Sciamarella, Denisse
Other Authors: Instituto Franco-Argentino sobre Estudios de Clima y sus Impactos Buenos Aires (IFAECI), Centro de Investigaciones del Mar y la Atmósfera (CIMA), Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN), Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)-Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN), Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)-Centre National de la Recherche Scientifique (CNRS), UCAR COOPERATIVE PROGRAMS FOR THE ADVANCEMENT OF EARTH SYSTEM SCIENCE
Format: Conference Object
Language:English
Published: HAL CCSD 2023
Subjects:
elephant seals
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
San Juan
Elephant Seal
Elephant Seals
Online Access:https://hal.science/hal-04276347
https://hal.science/hal-04276347/document
https://hal.science/hal-04276347/file/Poster_OSTST__2023_.pdf
Description
Summary:The topological approach called templex (Char´o et al., 2022) introduces the use of a cell complex endowed with a directed graph to characterize the structure of a flow in phase space. Templexproperties are shared by fluid particles exhibiting a certain qualitative behavior, and therefore can be used to detect Lagrangian patterns. When applied to single particles, the approach requires long timewindows to reconstruct the flow in phase space. In order to compensate for the low-term stability of ocean particle behavior, we develop a strategy that uses a bundle of several particles in the neighborhood of a point. The topological classes found with this strategy applied to surface geostrophic velocities maps derived from satellite altimetry enable identifying eddies and other patterns, which have been studied in connection with elephant seal behaviour.

Similar Items