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Preface
[chapter]
2018
New Frontiers in Operational Oceanography
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Terms and Conditions: Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or in part, without prior written permission from GODAE OceanView. v P REFACE he implementation of operational oceanography in the past 15 years has provided
doi:10.17125/gov2018.ch00
fatcat:mnsvszpg5zgfzhjxfotoaybrfe
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... societal benefits and has led to many countries adopting a formal roadmap for providing ocean forecasts. Continuing the tradition of two very successful international summer schools held in France in 2004 (Chassignet and Verron, 2006) and in Australia in 2010 (Schiller and Brassington, 2011), a third international school that focused on frontier research in operational oceanography was held in Majorca in 2017. In the coming years, graduate students and young scientists will be challenged by many new observations (SWOT, Sentinel, AUVs, floats, etc.), complex high-resolution numerical models and data assimilation (high resolution, predictability, uncertainty, changing computing platforms, etc.), and the need to work on many scales (open oceanshelf interactions, coupled ocean-ice-atmosphere, biogeochemistry, etc.). The latter school brought together senior experts and young researchers (pre-and post-doctorate) from across the world and exposed them to the latest research in oceanography, specifically how it will impact operational oceanography. This book is a compilation of the lectures presented at the school and presents a summary of the current state-of-the-art in operational oceanography research.
Learning Runge-Kutta Integration Schemes for ODE Simulation and Identification
[article]
2021
arXiv
pre-print
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Deriving analytical solutions of ordinary differential equations is usually restricted to a small subset of problems and numerical techniques are considered. Inevitably, a numerical simulation of a differential equation will then always be distinct from a true analytical solution. An efficient integration scheme shall further not only provide a trajectory throughout a given state, but also be derived to ensure the generated simulation to be close to the analytical one. Consequently, several
arXiv:2105.04999v1
fatcat:mf3jjliwxbe7ni5xj27snlbrxy
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... gration schemes were developed for different classes of differential equations. Unfortunately, when considering the integration of complex non-linear systems, as well as the identification of non-linear equations from data, this choice of the integration scheme is often far from being trivial. In this paper, we propose a novel framework to learn integration schemes that minimize an integration-related cost function. We demonstrate the relevance of the proposed learning-based approach for non-linear equations and include a quantitative analysis w.r.t. classical state-of-the-art integration techniques, especially where the latter may not apply.
Multiscale variability in the Balearic Sea: An altimetric perspective
2013
Journal of Geophysical Research - Oceans
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Merged data from satellite altimetry play an invaluable role Pascual et al., 2002 Pascual et al., , 2007 Amitai et al., 2010; Renault et al., 2012] . ...
MASON AND PASCUAL: BALEARIC SEA VARIABILITY
appears to coincide with April peak river discharges at Cap
de 5.3. ...
doi:10.1002/jgrc.20234
fatcat:u6przgufoff7nfqkappmusbjaa
Errors in dynamical fields inferred from oceanographic cruise data
2005
Journal of Marine Systems
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Ananda Pascual acknowledges a Marie Curie Host Industry Fellowship funded by the European Commission (Fellowship Contract: HPMI-CT-2001-00100). We are very grateful to Prof. Robert L. ...
A second method has been suggested by Pascual et al. (2004) , who also proposed to relocate the stations in order to mitigate the impact of the lack of synopticity. ...
doi:10.1016/j.jmarsys.2005.02.003
fatcat:vcpkjcv3pvg53a7mqtbc5lm6mq
A case of an intense anticyclonic eddy in the Balearic Sea (western Mediterranean)
2002
Journal of Geophysical Research
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Ananda Pascual holds a doctoral fellowship from the Universitat de les Illes Balears. ...
PASCUAL ET AL.: INTENSE EDDY IN THE BALEARIC SEA
Figure 9 . 9 Station distribution of the Hivern-99 cruise, with selected transects T1 and T2 (dashed lines). ...
PASCUAL ET AL.: INTENSE EDDY IN THE BALEARIC SEA
Figure 4 . 4 Sequence of AVHRR images of the western Mediterranean. Longitude labels correspond to the ticks on the left. ...
doi:10.1029/2001jc000913
fatcat:x7onf3n275dwxa56ozdnqamzzm
The 48th Liege colloquium: submesoscale processes: mechanisms, implications, and new frontiers
2018
Ocean Dynamics
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Vertical motion in the upper ocean from glider and altimetry data
2009
Geophysical Research Letters
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Pascual, B. Garau, I. Pujol, and J. Tintoré (2009), Vertical motion in the upper ocean from glider and altimetry data, Geophys. Res. Lett., 36, L14607, doi:10.1029/2009GL038569. ...
By increasing the number of altimeters merged in the analysis [see for instance Pascual et al., 2006] , the mesoscale activity is better described, smaller features can be resolved and more accurate values ...
doi:10.1029/2009gl038569
fatcat:dkkw6si77needf53rf77hmtcya
Improved description of the ocean mesoscale variability by combining four satellite altimeters
2006
Geophysical Research Letters
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The AVISO maps on that date (Pascual et al., 2006) are frequently cited as an example of improved mapping afforded by 4-versus 2satellite sampling. ...
Pascual, A., Y. Faugère, G. Larnicol, P.-Y. Le Traon (2006), Improved description of the ocean mesoscale variability by combining four satellite altimeters, Geophys. Res. ...
doi:10.1029/2005gl024633
fatcat:xzi5j45pp5dgzduofgxcgql3m4
On the mesoscale monitoring capability of Argo floats in the Mediterranean Sea
2016
Ocean Science Discussions
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This approach is similar to the one followed by Pascual et al. (2009) . ...
doi:10.5194/os-2016-77
fatcat:65w674yth5hfpf54ntmeonfer4
On the mesoscale monitoring capability of Argo floats in the Mediterranean Sea
2017
Ocean Science (OS)
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This approach is similar to the one followed by Pascual et al. (2009) . ...
doi:10.5194/os-13-223-2017
fatcat:qke3h6lluzdqxn7fmrarq7z4zy
Impact of vertical and horizontal advection on nutrient distribution in the southeast Pacific
2016
Ocean Science (OS)
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., 2012; Pascual et al., 2015) . ...
The EKE in the South Pacific Gyre has lower values in comparison with more active regions such as the Gulf Stream or Agulhas Current (Pascual et al., 2006; Imawaki et al., 2013) . ...
doi:10.5194/os-12-1003-2016
fatcat:2xw23kogmngxxn5if5kqokgncm
Subregional characterization of mesoscale eddies across the Brazil-Malvinas Confluence
2017
Journal of Geophysical Research - Oceans
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U, V, and N are diagnosed from the weekly ARMOR3D data (section 2.2) [e.g., Pascual et al., 2015; Barcel o-Llull et al., 2016] . ...
., 2003; Pascual et al., 2006] . The DT14 reprocessing eliminates the unknown geoid by removal of the 20 year mean SSH (1993 ( ) [Pujol et al., 2016 . ...
doi:10.1002/2016jc012611
fatcat:ztkttlruzzfyzaxk76csrhlwdi
A New Sea Surface Height–Based Code for Oceanic Mesoscale Eddy Tracking
2014
Journal of Atmospheric and Oceanic Technology
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altimeters are presently available from Archiving, Validation, and Interpretation of Satellite Oceanographic (AVISO) data, providing improved resolution of mesoscale features and their variability (Pascual ...
doi:10.1175/jtech-d-14-00019.1
fatcat:lnqspgbmvnce7izgpuzhdeppby
Thermal Lag Correction on Slocum CTD Glider Data
2011
Journal of Atmospheric and Oceanic Technology
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In this work a new methodology is proposed to correct the thermal lag error in data from unpumped CTD sensors installed on Slocum gliders. The advantage of the new approach is twofold: first, it takes into account the variable speed of the glider; and second, it can be applied to CTD profiles from an autonomous platform either with or without a reference cast. The proposed methodology finds values for four correction parameters that minimize the area between two temperature-salinity curves
doi:10.1175/jtech-d-10-05030.1
fatcat:ytlfczgoy5e5pmamkxpua3ftmu
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... by two CTD profiles. A field experiment with a Slocum glider and a standard CTD was conducted to test the method. Thermal laginduced salinity error of about 0.3 psu was found and successfully corrected. [PUBLICATION ABSTRACT] _______________________________________________________________ Texto completo Headnote ABSTRACT In this work a new methodology is proposed to correct the thermal lag error in data from unpumped CTD sensors installed on Slocum gliders. The advantage of the new approach is twofold: first, it takes into account the variable speed of the glider; and second, it can be applied to CTD profiles from an autonomous platform either with or without a reference cast. The proposed methodology finds values for four correction parameters that minimize the area between two temperature-salinity curves given by two CTD profiles. A field experiment with a Slocum glider and a standard CTD was conducted to test the method. Thermal laginduced salinity error of about 0.3 psu was found and successfully corrected. (ProQuest: ... denotes formulae omitted.)
Net primary production in the Gulf Stream sustained by quasi-geostrophic vertical exchanges
2015
Geophysical Research Letters
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Consequently, in situ observations PASCUAL ET AL. ...
., 2001; Pascual et al., 2004; Pidcock et al., 2013] . ...
PASCUAL ET AL.©2014. American Geophysical Union. All Rights Reserved.
.1002/2014GL062569 PASCUAL ET AL. ©2014. American Geophysical Union. ...
doi:10.1002/2014gl062569
fatcat:dq65crt5yvclja3n23tfle4aem
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