LOSS

Name: LOSS
Start: 2013-10-28
End: 2013-11-04
Location: Coral Sea

Type	Oceanographic cruise
Ship	Alis
Ship owner	IRD
Dates	28/10/2013 - 04/11/2013
Chief scientist(s)	MARIN Frédéric
	LABORATOIRE D'ETUDES EN GÉOPHYSIQUE ET OCÉANOGRAPHIE SPATIALES - UMR 5566 14 avenue Edouard Belin 31400 Toulouse +33 (0)5 61 33 47 13 https://www.legos.omp.eu/
DOI	10.17600/13100090
Objective	Description of the currentometric and hydrological structure between the surface and depth of 2,000 metres of two major currents in regional ocean circulation in the South West Pacific (South Caledonian Jet and East Caledonian Current). Recovery of the SPRAY glider belonging to the IRD centre in Noumea, in the framework of repeated glider missions within the East Caledonian Current for the AltiGlidEx project. This falls under the OSTST/CNES AltiKa/AltiGlidEx project.

Sea/Ocean

Coral Sea

(Zones Sud/Ouest de la ZEE de Nouvelle-Calédonie)

Ports

Port of departure : Noumea (New Caledonia)

Port of return : Noumea (New Caledonia)

Limits

North	South	West	East
-19.5	-26.0	166.0	167.5

Scientific Authority

LABORATOIRE D'ETUDES EN GÉOPHYSIQUE ET OCÉANOGRAPHIE SPATIALES - UMR 5566

14 avenue Edouard Belin

31400 Toulouse

+33 (0)5 61 33 47 13

https://www.legos.omp.eu/

Participating bodie(s)

IRD

Discipline(s)

PHYSICAL OCEANOGRAPHY
CHEMICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B02	Phytoplankton pigments (eg chloroph	26 stations	MARIN Frédéric
D71	Current profiler (eg ADCP) ADCP (OS75) de coque en continu + Profils L-ADCP en station	25 stations	MARIN Frédéric
H09	Water bottle stations Rosette avec 11 bouteilles de prélèvement	25 stations	MARIN Frédéric
H10	CTD stations Stations CTD-O2	26 stations	MARIN Frédéric
H16	Transparency (eg transmissometer) Profil fluorimétrie en station	26 profiles	VARILLON David
H17	Optics (eg underwater light levels) Profil hydroscat	1 profiles	DUPOUY Cécile
H21	Oxygen Prélèvements bouteille pendant 25 stations CTD	275 samples	MARIN Frédéric
H71	Surface measurements underway (T,S) En continu	-	VARILLON David
M90	Other meteorological measurements Station de mesure météo du bateau en continu	-	VARILLON David

Summary of measurements

-Performing 26 CTD-O2 + L-ADCP stations, with water samples taken in bottles to analyze salinity and oxygen in the laboratory.
Continuous underway absolute current measured at 0-700m with hull-mounted ADCP (OS75).
-Continuous surface temperature and salinity measurements with TSG.
-Continuous logging of weather parameters from Batos station.
-Retrieval of the SPRAY glider from the IRD centre in Nouméa.
-1 Hydroscat profile taken at opportunity (in the framework of SPOT project).

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS naturel

Data managed by SISMER

Bibliography

Publications

Keppler Lydia, Cravatte Sophie, Chaigneau Alexis, Pegliasco Cori, Gourdeau Lionel, Singh Awnesh (2018). Observed Characteristics and Vertical Structure of Mesoscale Eddies in the Southwest Tropical Pacific. Journal Of Geophysical Research-oceans, 123(4), 2731-2756. Publisher's official version : https://doi.org/10.1002/2017JC013712 , Open Access version : https://archimer.ifremer.fr/doc/00489/60039/

Durand Fabien, Marin Frederic, Fuda Jean-Luc, Terre Terrillon Thierry (2017). The East Caledonian Current: A Case Example for the Intercomparison between AltiKa and In Situ Measurements in a Boundary Current. Marine Geodesy, 40(1), 1-22. https://doi.org/10.1080/01490419.2016.1258375

Cravatte Sophie, Kestenare Elodie, Eldin Gerard, Ganachaud Alexandre, Lefevre Jerome, Marin Frederic, Menkes Christophe, Aucan Jerome (2015). Regional circulation around New Caledonia from two decades of observations. Journal Of Marine Systems, 148, 249-271. https://doi.org/10.1016/j.jmarsys.2015.03.004

Ganachaud A., Cravatte S., Melet A., Schiller A., Holbrook N. J., Sloyan B. M., Widlansky M. J., Bowen M., Verron J., Wiles P., Ridgway K., Sutton P., Sprintall J., Steinberg C., Brassington G., Cai W., Davis R., Gasparin F., Gourdeau L., Hasegawa T., Kessler W., Maes C., Takahashi K., Richards K. J., Send U. (2014). The Southwest Pacific Ocean circulation and climate experiment (SPICE). Journal Of Geophysical Research-oceans, 119(11), 7660-7686. Publisher's official version : https://doi.org/10.1002/2013JC009678 , Open Access version : https://archimer.ifremer.fr/doc/00244/35504/

References of International Seminar Communications

Marin F., G. Sérazin, L. Gourdeau, M.-L. Dabat, S. Cravatte and A. Ganachaud (2018). Plans for in situ experiments in New Cal during the SWOT fast-sampling phase. SWOT Science Meeting, Montréal, Canada, 26-29 juin 2018.

Sérazin G., F. Marin, S. Cravatte, L. Gourdeau and R. Morrow (2017). SWOT in the tropics: High-frequency dynamics of sea surface height around New Caledonia from model and observations. SWOT Science Team Meeting, Toulouse, 26-28 juin 2017.

Gourdeau L., F. Marin, A. Ganachaud, M. Tchilibou and S. Calmant. SWOT in the tropics : a case study in the South West Pacific. Poster présenté à SWOT Science Team Meeting, Pasadena (USA), 13-16 juin 2016.

Keppler L., S. Cravatte, A. Chaigneau, A. Singh, F. Marin and F. Durand. Characteristics of mesoscale eddies in the Southwest Pacific based on observations from satellite altimetry, Argo floats and moorigs. Poster présenté au 2016 Ocean Surface Topography Science Team Meeting, La Rochelle (France), 1-4 novembre 2016.

Cravatte S., E. Kestenare, L. Keppler, A. Chaigneau, F. Marin and C. Menkès. Influence of mesoscale eddies on oceanic circulation around Islands: the case study of New Caledonia. Poster présenté au 11th ICSHMO meeting, Santiago (Chili), 5-9 octobre 2015.

Durand F., F. Marin and J.-L. Fuda. The AltiGlidEx project: monitoring the ocean circulation around New Caledonia from a combination of Saral/AltiKa measurements and dedicated in situ observing systems. Poster présenté à 2014 SARAL/AltiKa workshop, Lake Constance (Allemagne), 27 octobre 2014.

Marin F., F. Durand and J.-L. Fuda. AltiGlidEx project: towards a synergy of AltiKa and in situ observations for the monitoring of boundary currents in the South-West Pacific. Présentation orale à 2014 Saral Science and Applications Meeting, Ahmedabad (Inde), 22-24 avril 2014.

Marin F., J.-L. Fuda and F. Durand. Time variability of ocean circulation around New Caledonia from altimetry, gliders and other in situ observations. Présentation orale à 6th EGO meeting and final symposium of the COST action ES0904, Kiel (Allemagne), 16-17 juin 2014.

Marin F., J.-L. Fuda and F. Durand. Time variability of the East Caledonian Current. Présentation orale à Ocean Sciences Meeting, Hawaii (USA), 23-27 février 2014.

Marin F., J.-L. Fuda, F. Durand, T. Terre, J.-Y. Panché, K. Mahiouz and L. Béguery. Monitoring the ocean circulation around New Caledonia from a combination of repeated glider measurements and other in situ observing systems. Poster présenté à EGU Meeting, Vienne (Autriche), 7-12 avril 2013.

References of National Seminar Communications

Marin F., G. Sérazin, L. Gourdeau, M.-L. Dabat, S. Cravatte and A. Ganachaud (2018). Plans for in situ experiments in New Caledonia during the SWOT fast-sampling phase. Journée cal/val SWOT, Paris, 11 septembre 2018.

Marin F., G. Sérazin, L. Gourdeau, M.-L. Dabat, S. Cravatte and A. Ganachaud (2018). Plans for in situ experiments in New Caledonia during the SWOT fast-sampling phase. Journées Nationales SWOT, Toulouse, 20-21 novembre 2018.

Sérazin G., F. Marin, S. Cravatte, L. Gourdeau and M.-L. Dabat. SWOT in- the tropics: designing a joint in situ experiment during the fast-sampling SWOT orbit to sample small-scale dynamics around New Caledonia (2018). Journées Nationales SWOT 2018, Toulouse, 20-21 novembre 2018.