SUPREA

Name: SUPREA
Start: 1978-08-02
End: 1978-09-14
Location: Gulf of Guinea

Type	Oceanographic cruise
Ship	Le Suroît
Ship owner	Ifremer
Dates	02/08/1978 - 14/09/1978
Chief scientist(s)	MINAS Hans J.
	INSTITUT MÉDITERRANÉEN D'OCÉANOLOGIE - UMR 7294 UMR IRD 235 - MARSEILLE 163 avenue de Luminy Bâtiment Méditerranée 13288 Marseille Cedex 9 +33(0)4 86 09 05 00 https://www.mio.osupytheas.fr/fr/linstitut-mediterraneen-doceanologie/presentation-2/
DOI	10.17600/78002411
Objective	Circulation and productivity of equatorial waters in the Gulf of Guinea. Study of equatorial upwelling and planktonic production. Conventional hydrology station less than 500 m, CTD, oxygen, phosphate, nitrate, nitrite, silicate, optical measurement, routine systematic measurement, isolated surface temperature, drifting float, primary production, phytoplankton pigments, particulate organic carbon, particulate organic nitrogen, phytoplankton, food chain, physiology, identification, fishing area studies, spatial-temporal distribution, biomass determination, population and environment, population structure, current profiler.

Sea/Ocean

Gulf of Guinea

(ATLANTIQUE EQUATORIAL EST, GOLFE GUINEE)

Ports

Port of departure : Abidjan (Côte d'Ivoire)

Port of return : Abidjan (Côte d'Ivoire)

Scientific Authority

COM / LAB. D'OCEANOG. PHYS. & BIOGEOCHIMIQ. (LOPB) - LUMINY

UMR 6535

Campus de Luminy

13288 MARSEILLE CEDEX 9

+33(0)4 91 82 91 15

queguiner@com.univ-mrs.fr

Participating bodie(s)

RCP MEDIPROD 247

Discipline(s)

METEOROLOGY
BIOLOGICAL OCEANOGRAPHY
PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B01	Primary productivity	15 stations	MINAS Hans J.
B02	Phytoplankton pigments (eg chloroph	59 stations	MINAS Hans J.
B08	Phytoplankton	15	MINAS Hans J.
B71	Particulate organic matter (inc POC carbone et azote	10	MINAS Hans J.
D05	Surface drifters/drifting buoys	6 deployments	MINAS Hans J.
D90	Other physical oceanographic meas. Profileur de courant	28 stations	MINAS Hans J.
H09	Water bottle stations	59 stations	MINAS Hans J.
H10	CTD stations	136 stations	MINAS Hans J.
H17	Optics (eg underwater light levels)	34 stations	MINAS Hans J.
H21	Oxygen	59 stations	MINAS Hans J.
H22	Phosphate	59 stations	MINAS Hans J.
H24	Nitrate	58 stations	MINAS Hans J.
H25	Nitrite	59 stations	MINAS Hans J.
H26	Silicate	59 stations	MINAS Hans J.
H31	Radioactivity	58 stations	MINAS Hans J.
H76	Ammonia	59 stations	MINAS Hans J.
H90	Other chemical oceanographic meas. Chlorinite	59 stations	MINAS Hans J.
M06	Routine standard measurements	-	MINAS Hans J.

Summary of measurements

-Routine weather measurements: 2 readings per day.
-137 Bisset CTD stations with rosette of 12 Niskin bottles.
-15 biological stations with Niskin bottles.
-Measurements of temperature, salinity, O2, nutritive salts, chlorophyll a, silicates.
-34 optical measurement profiles.
-Currentmeters: 23 Aanderaa vertical profiles.

Positionning system

Geodetic system : VALEUR INDEFINIE

Data managed by SISMER

Bibliography

References of Articles published in other Periodicals or Scientific Works acclaimed in the Field

Kouame Kanga Désiré, Kouassi Aka Marcel, Trokourey Albert, Toualy Elisée, N’guessan Benjamin K., Brehmer Patrice, Ostrowski Marek (2021). Spatial and Seasonal Variability of Mixed Layer Depth in the Tropical Atlantic at 10 °W using 40 Years of Observation Data. European Journal of Scientific Research / Revue Européenne de la recherche Scientifique, 158(3), 207-217. Open Access version : https://archimer.ifremer.fr/doc/00684/79619/