SPRAYALIS 3

Name: SPRAYALIS 3
Start: 2012-10-01
End: 2012-10-03
Location: Southwest Pacific Ocean (140W)

Type	Oceanographic cruise
Set	This cruise is part of the set SPRAYALIS
Ship	Alis
Ship owner	IRD
Dates	01/10/2012 - 03/10/2012
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	10.17600/12100110
Objective	The SPRAYALIS 3 cruise's aim is to contribute to in situ observation efforts in 2013 of the East Caledonian Current, a major current in regional oceanic circulation around New Caledonia, by deploying a sub-surface current-meter mooring to the north-east of Lifou (167°15'E, 20°26'S). This mooring follows that of a similar mooring deployed in the same place from November 2010 to October 2011 (SPRAYALIS and SPRAYALIS 2 cruises), and will be an integral part of an observation system which will enable the validation of coastal altimetry data from the AltiKa satellite in the year following its launch into orbit (scheduled for December 2012). Thus, in 2013 this observation system will include this mooring as well as a hydrology (CTD) and current meter (S-ADCP and L-ADCP) leg between New Caledonia and the Vanuatu islands (LOSS cruise planned for the second semester of 2013) and repeated hydrology legs in 2013 and 2014 using a glider, under track #745 of the AltiKa satellite.

Sea/Ocean

Southwest Pacific Ocean (140W)

Ports

Port of departure : Noumea (New Caledonia)

Port of return : Noumea (New Caledonia)

Project

South Pacific ocean circulation and Climate Experiment

Scientific Authority

IRD CENTRE DE NOUMEA

101 promenade Roger Laroque

BP A5

98848 NOUMEA CEDEX

(+687) 26 10 00

nouvelle-caledonie@ird.fr

https://nouvelle-caledonie.ird.fr/

Participating bodie(s)

IRD

Discipline(s)

PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
D01	Current meters Mouillages (JL. Fuda) 1,5 ans	-	MARIN Frédéric
D06	Neutrally buoyant floats Flotteur ARVOR	-	MAES Christophe
D71	Current profiler (eg ADCP) S-ADCP en route, L-ADCP en station	-	MARIN Frédéric
H10	CTD stations Données CTD	6 stations	MARIN Frédéric
H71	Surface measurements underway (T,S) Données TSG en route	-	VARILLON David

Summary of measurements

-Deployment of a sub-surface current-meter mooring.
-6 CTD-LADCP stations on leg.
-Deployment of an ARVOR float.
-S-ADCP data acquisition underway.
-TSG data acquisition while underway.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS naturel

Data managed by SISMER

Bibliography

Publications

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/