Cruise dates « almost official » : October 21- December 13

1. Cruise dates « almost official » : October 21- December 13 • 54 days • LEG 1 : 29 jours • LEG 1 : 25 jours • 48 hour stop at Easter Island

2. 164°W 132°W 100°W 68°W 4°N 20°S 44°S Possible evolutions regarding initial strategy Tahiti Easter Island Concepcion

4. 2 2 2 2 2 2 6 6 6 6 6 6 6 6 OPTION 1 Tahiti Easter Island Concepcion

5. 2 2 2 2 2 2 2 6 6 6 6 6 6 6 1 6 Tahiti Easter Island 6 Concepcion 6 OPTION 2

6. 2 2 2 2 2 2 2 2 6 6 6 6 6 6 6 6 1 6 Tahiti Easter Island 4 Concepcion 6 OPTION 3

7. 2 2 2 2 2 2 2 2 6 6 6 6 6 6 6 6 Tahiti Easter Island 4 Concepcion 6 OPTION 4

8. Alternative scenarii for the cruise OPTION 1 basic OPTION 2 + ref HLN Marq. OPTION 3 + gradient towards UPW OPTION 4 + mesotrophic station in grad. 28 10 6 10 30 8 6 10 26 12 8 8 22 16 8 8 OLIGO MESO (+ HLNC) EUTRO Transit. 54 54 54 54

9. Three types of stations • Short stations :7 hours 30 • Long stations : 2 days • Long stations : 4-6 days Transit time calculated at 11 knots

10. Short stations Three main temporal constraints : • Stations no longer than 7.5 hours • Sampling for simulated production before sunrise • 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

11. 2 Day-stations Context / constraints : • Locations will be choosen on the basis of high resolution color scenes (and SST for upwelling?) • 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 • Eventually perfom a deep station • CTD-rosette-PVM-IOP every 3 hours

12. 5 Day-stations Context / constraints : • CTD-rosette-PVM-IOP every 3 hours • Eventually perfom a deep station

13. Deep stations Measurements : • TCO2, O2, N20, • Iron • nutrients • Other trace elements (?) • DOM • diversity • irradiation MO profonde Where and how deep?

14. Detritus and surface microlayer specific sampling? At convergence, misinterpretation of the signal in terms of [Chla] because of the presence of floating detritus

15. 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) Moorings / argo floats / tramps

17. Continuous underway measurements • Temperature, Salinity • fluo Turner • Hiac • Transmissometer Cstar 488 nm – 660 nm • pCO2, N2O • (flow cytometry, 1 hour) • other measurements ???

18. 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).

19. Radioisotopes – produits chimiques • container : (France, Thierry, Peggy, Marcel) • compteur à scintillation • demande CIREA – personnes compétentes • contraintes sur les produits chimiques? • Fiches produits

20. 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

21. Data - base

22. Role of the PROOF data base • To list, collect, organize and archive data originated from PROOF operations • To permit the exchange of data between national and international institutions • Transfer the validated data to international data bases (PANGAEA) • To diffuse scientific information within the PROOF program (Announcements, Colloquium, Proposals …) • http://www.obs-vlfr.fr/proof/index_vt.htm

23. PROOF Data Base M.P. Labaied Chief of mission orcruise data person in charge Parameter manager Researchers which make the data acquisition

24. Step 1 - Before the cruise (June) Chief of mission Listing of all the planned parameters

25. Step 1 - Before the cruise (June) Responsibles of parameters Precise description of the parameters

26. 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

27. Step 3 - After the cruise Manager of Parameters Complete the Parameter form

28. 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)

29. Embarquants : qui échantillonne pour les non-embarquants? Collaborations? • phyto (Gomez) Antoine/ Hervé • coccolithophoridés (Beaufort / de Varga) Frédéric • ciliés (Dolan) Frédéric • pigments photoheterotrophes (Bidigare) Joséphine • flow cytometry : bacteria chla (Bidigare) Frédéric • virus (Markus) ? • Nif gene (Zehr) Frédéric • Oxygène ? • P pools (Karl) Thierry? • FRRF IR (Kolber Falkowski?) ? • Molecular CDOM (Repeta) Hervé / Davy • ?? • ??