Lagrangian descriptors and the assessment of the predictive capacity of oceanic data sets
We use a recently developed Lagrangian transport tool, <i>Lagrangian descriptors</i>, to compare the transport properties of data distributed by AVISO and numerical simulations obtained from the HYCOM model in the Yucatán–Florida current system. Our data correspond to the months from Jun...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-06-01
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| Series: | Nonlinear Processes in Geophysics |
| Online Access: | http://www.nonlin-processes-geophys.net/21/677/2014/npg-21-677-2014.pdf |
| Summary: | We use a recently developed Lagrangian transport tool, <i>Lagrangian
descriptors</i>, to compare the transport properties of data distributed by
AVISO and numerical simulations obtained from the HYCOM model in the
Yucatán–Florida current system. Our data correspond to the months from June
through August 2010. Structures obtained from HYCOM are noisier than those
from AVISO; however, both AVISO and HYCOM succeed in identifying Lagrangian
structures that influence the paths of drifters, such as eddies, currents,
lobes, etc. We find evidence in which AVISO gives the positions of important
hyperbolic trajectories in a manner that is inconsistent with the
trajectories of the drifters, while for the same examples HYCOM succeeds to
this end. |
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| ISSN: | 1023-5809 1607-7946 |