SURTROPAC 04

Name: SURTROPAC 04
Start: 1985-06-27
End: 1985-07-19
Location: Pacific Ocean

Type	Oceanographic cruise
Set	This cruise is part of the set SURTROPAC
Ship	Coriolis
Ship owner	Ifremer
Dates	27/06/1985 - 19/07/1985
Chief scientist(s)	ELDIN Gérard
	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	10.17600/85002011
Objective	Hydrological and current metric study of the zonal circulation system in the western tropical Pacific Ocean during the southern winter period. Study of Ocean -Atmosphere transfers. Study of the variability of the structure near the equator. SURTROPAC 8502 is the fourth in a series of semi-annual cruises.

Sea/Ocean

Pacific Ocean

(PACIFIQUE EQUATORIAL OUEST)

Ports

Port of departure : Noumea (New Caledonia)

Port of return : Noumea (New Caledonia)

Project

SURTROPAC

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)

ORSTOM (Noumea), PMEL (Seattle, USA)

Discipline(s)

METEOROLOGY
PHYSICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B09	Zooplankton	29	ELDIN Gérard
D71	Current profiler (eg ADCP) profils de courants 0-600 m	31 profiles	ELDIN Gérard
H09	Water bottle stations	31 stations	ELDIN Gérard
H10	CTD stations	31 stations	ELDIN Gérard
H22	Phosphate	31 stations	ELDIN Gérard
H24	Nitrate	31 stations	ELDIN Gérard
H25	Nitrite	31 stations	ELDIN Gérard

Summary of measurements

-HYDROLOGY: 31 CTDs 0-1000 m probe with 12 samples for analysis of salinity, chlorophyll, nitrates, nitrites and phosphates; on the way back, surface samples every 3 hours for temperature, salinity and chlorophyll analysis.
-DYNAMIC: 31 current profiles 0-600 m; mooring of 2 chains of thermistors from PMEL to 2S and 2N.
-BIOLOGY: 29 vertical lines 0-500 m for estimating mesozooplankton biomass; 26 lines 0-200 m for microzooplankton.
-METEOROLOGY: Routine measurements every 3 hours.

Positionning system

Geodetic system : VALEUR INDEFINIE

Data managed by SISMER

Bibliography

Publications

Eldin Gerard, Delcroix Thierry, Rodier Martine (2004). The frontal area at the eastern edge of the western equatorial Pacific warm pool in April 2001. Journal Of Geophysical Research-oceans, 109(C07006), 1-10. https://doi.org/10.1029/2003JC002088

Ioualalen Mansour, Lukas Roger, Eldin Gerard, Gouriou Yves (2003). Some aspects of the southern Pacific subtropical overturning cell (STC) during WESPALIS-1 cruise in Oct./Nov 1999. Geophysical Research Letters, 30(7), 53.1-53.4. https://doi.org/10.1029/2002GL016683

Le Borgne Robert, Barber Rt, Delcroix Thierry, Inoue Hy, Mackey Dj, Rodier M (2002). Pacific warm pool and divergence: temporal and zonal variations on the equator and their effects on the biological pump. Deep-sea Research Part Ii-topical Studies In Oceanography, 49(13-14), 2471-2512. https://doi.org/10.1016/S0967-0645(02)00045-0

Gouriou Yves, Toole J (1993). Mean circulation of the upper layers of the western equatorial Pacific Ocean. Journal Of Geophysical Research-oceans, 98(C12), 22495-22520. Publisher's official version : https://doi.org/10.1029/93JC02513 , Open Access version : https://archimer.ifremer.fr/doc/00192/30346/