Cruise dates « almost official » :
October 21- December 13
• 54 days
• LEG 1 : 29 jours
• LEG 1 : 25 jours
• 48 hour stop at Easter Island
Possible evolutions regarding initial strategy
20°S
164°W
132°W
100°W
Tahiti
Easter
Island
44°S
68°W
Concepcion
4°N
OPTION 1
222
666
Tahiti
6
Easter
Island
222
666
Concepcion
6
OPTION 2
1
6
2222
6666
Tahiti
6
6
222
666
Concepcion
Easter
Island
OPTION 3
1
6
2222
6666
Tahiti
6
4
2222
6666
Concepcion
Easter
Island
OPTION 4
2222
6666
Tahiti
Easter
Island
4
2222
6666
Concepcion
6
Alternative scenarii for the cruise
OPTION
1
basic
OPTION 2
+ ref HLN
Marq.
OPTION 3
+ gradient
towards UPW
OPTION 4
+ mesotrophic
station in grad.
30
28
26
22
MESO (+ HLNC)
8
10
12
16
EUTRO
6
6
8
8
Transit.
10
10
8
8
54
54
54
54
OLIGO
Three types of stations
• Short stations :7 hours 30
• Long stations : 2 days
• Long stations : 4-6 days
Transit time calculated at 11 knots
Short stations
Three main temporal constraints :
1. Stations no longer than 7.5 hours
2. Sampling for simulated production before sunrise
3. Overpasses of satellites in the 9h00-15h00 time window
calval +/- 1 Hour of the passage
• MERIS :
9h00 –11h00
• MODIS T:
9h00 –11h00
• SeaWiFS :
11h00-13h00
• MODIS A:
13h00-15h00
2 Day-stations
Context / constraints :
1. Locations will be choosen on the basis of high resolution
color scenes (and SST for upwelling?)
2. a priori, distance between stations equals 55-70 miles (5-7
hour transit). Need to be on the following station on time
(3-4 am) for primary production sampling
3. Eventually perfom a deep station
4. CTD-rosette-PVM-IOP every 3 hours
5 Day-stations
Context / constraints :
1. CTD-rosette-PVM-IOP every 3 hours
2. Eventually perfom a deep station
Measurements :
• TCO2, O2, N20,
• Iron
• nutrients
• Other trace elements (?)
• DOM
• diversity
• irradiation MO profonde
Where and how deep?
Deep stations
Detritus and surface microlayer specific sampling?
At convergence, misinterpretation of the signal in terms of [Chla]
because of the presence of floating detritus
Moorings / argo floats / tramps
Mooring
• sediment trap : drifting mooring with 2 PPS5 5?) ; sample (mass) budget ; 150 m and
300 m
• production line : brought by Thierry?
Argo floats / drifters
• 10 drifters with drogue (NOAA) (20 m3 )
• 23 ARGO floats (SCRIPPS) (10 m3, stockage à l’abris)
sent to Tahiti : Claudie will be taught and made in charge of deployment.
• 2 floats + radiometers (Marlon?)
Tramp deployment
• station gyre (5 days)
Continuous underway measurements
• Temperature, Salinity
• fluo Turner
• Hiac
• Transmissometer Cstar 488 nm – 660 nm
• pCO2, N2O
• (flow cytometry, 1 hour)
• other measurements ???
Deck incubation
• Who?
• temperature controled?
• Alternative solution to get Ze « at night » and to chose the accurate sampling depths
(require to calibrate the Seatech fluorometer with “extracted turner Chla” and operate
a small program just after the dowcast. Operational after 2-3 days (sufficient data
points for the calibration of the turner).
Radioisotopes – produits chimiques
• container : (France, Thierry, Peggy, Marcel)
• compteur à scintillation
• demande CIREA – personnes compétentes
• contraintes sur les produits chimiques?
• Fiches produits
Rosette – bottles - sensors
• CTD INSU modifiée + O2 + CSTAR (660) + Fluo CDOM +AC9 + bb3
• batterie + capteur NO3 (Marlon)
• batterie + AC9 (dissous) + CSTAR (488) + SAM + ECO VSF
• PVM monotube
• place pour 19 ou 21 bouteilles sur la rosette
• 42 bouteilles INSU (21 classiques, 21 extérieures): quel choix?
• tests et assemblage de la rosette et des capteurs en Mars-Avril à Villefranche
Data - base
Role of the PROOF data base
1.
To list, collect, organize and archive data originated from PROOF operations
2.
To permit the exchange of data between national and international institutions
3.
Transfer the validated data to international data bases (PANGAEA)
4.
To diffuse scientific information within the PROOF program (Announcements,
Colloquium, Proposals …)
http://www.obs-vlfr.fr/proof/index_vt.htm
PROOF Data Base
M.P. Labaied
Chief of mission or
cruise data person in charge
Parameter manager
Researchers which make the data acquisition
Step 1 - Before the cruise (June)
Chief of mission
Listing of all the planned parameters
N° Responsible Planned Measured In bank Validated F
PARAMETER
1
x Meteo
2
x CTD
3
Salinité BTL
4
Oxygène
5
Oxygène BTL
6
Fluorescence Chla vertical
7
Fluorescence CDOM
8
Nephelometry
9
Attenuation Cstar
10
x PAR
11
x L ADCP
12
x ADCP 300khZ
13
x ADCP 75khZ
14
x Thermosalinograph
15
Fluorescence Chla horizontal
16
x Particules PVM
17
x Particules OPC lab
18
x Particules OPC fish
GROUPS
Meteo
Hydrology
Hydrology
Dissolved gas
Dissolved gas
Inherent optical properties
Inherent optical properties
Inherent optical properties
Inherent optical properties
Apparent optical properties
Current
Current
Current
Hydrology
Inherent optical properties
Particle size distribution
Particle size distribution
Particle size distribution
METHODS
Seabird
Salinometer
Seabird
Winkler
SeaTech/Chelsea/Wetlabs
Wetlabs
Cheslea
C star
Biospherical
RDI
RDI
RDI
Seabird
Turner / Wetlabs
PVM
OPC lab
OPC fish
STOCK or FLUXES
Stock
Stock
Stock
Stock
Stock
Stock
Stock
Stock
Stock
Stock
SAMPLING
Vertical profiler
Rosette
Vertical profiler
Rosette
Vertical profiler
Vertical profiler
Vertical profiler
Vertical profiler
Vertical profiler
Vertical profiler
Continuous horizontal
Continuous horizontal
Continuous horizontal
Continuous horizontal
Vertical profiler
Plankton net
Continuous horizontal
Step 1 - Before the cruise (June)
Responsibles of parameters
Precise description of the parameters
Step 2 - Before the end of each leg
Managers of Parameters
Give a first indication on what has been measured
during the leg?
•number of stations
•number of samples
•continuous
•etc
Step 3 - After the cruise
Manager of Parameters
Complete the Parameter form
Step 4 – Before your retirement !
Chief of Mission
Managers of parameters
Transmit your data files to the Proof
Data Base
Marie-Paule Labaied
•Indicate the data validation level
•Indicate the confidentiality (2 years)
Embarquants : qui échantillonne pour les non-embarquants?
Collaborations?
• phyto (Gomez)
• coccolithophoridés (Beaufort / de Varga)
• ciliés (Dolan)
• pigments photoheterotrophes (Bidigare)
• flow cytometry : bacteria chla (Bidigare)
• virus (Markus)
• Nif gene (Zehr)
• Oxygène
• P pools (Karl)
• FRRF IR (Kolber Falkowski?)
• Molecular CDOM (Repeta)
•??
•??
Antoine/ Hervé
Frédéric
Frédéric
Joséphine
Frédéric
?
Frédéric
?
Thierry?
?
Hervé / Davy