Documenting N2 FIxation

Ship

R/V Atlantis

Vehicles

Cruise Party

Douglas Capone: Chief Scientist, Principal Investigator
University of Southern California / Wrigley Institute for Environmental Studies & Department of Biological Sciences 3616 Trousdale Parkway P.O. BOX AHF 108 Los Angles, Ca USA 90089-0371
+1 213 740 2772
capone@usc.edu

Departure: Iquique, Chile

Arrival: Iquique, Chile

Supporting documentation:

Operations Area: Eastern Tropical South Pacific / Grid 20 S, 80 W to 20 S, 110 W to 10 S 110 W, to 10 S 80 @W

Lat/Lon: 20° 0.0′ S / 80° 0.0′ W

Depth Range: 3000 / max (m)

Will the vessel be operating within 200 NM of a foreign country? NO
Are visas or special travel documents required? no

Science objectives

Documenting N2 fixation in N deficient waters of the Eastern Tropical South Pacific

Science Activities

Upper water column biogeochemistry, shallow and deep sediment trap deployment @ six major (>24h) stations.

No Station positions have been given.  The operating box is this:

Lattitude 10 South, from 80W to 110W
then along
Lattitude 20 South, from 80W to 110W.

Pre-cruise planning meeting: Teleconference

Dec 4, 2009 @ 1300 EDT teleconference w/ Doug Capone, Will Berelson and Jim Moffett

Stations:

Funding Agency: NSF #0850801/0850905

- added NSF #0850801/0850905 on Dec 18, 2009 10:41 AM by
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R/V Atlantis

Shipboard Equipment

Bathymetry System 12 kHz
Bathymetry System 3.5 kHz
ADCP 150 kHz
ADCP 75 kHz
Deionized Water System
Science Underway Seawater System
Fume Hood
Navigation - Position

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
SBE43 oxygen sensor
Wet Labs C*Star transmissometer (660nm wavelength)
Biospherical underwater PAR (1000m depth limit) with reference Surface PAR

Critical CTD Sensors:  CHL sensor

Hydrographic Analysis Equipment

Salinometer

MET Sensors

Barometric Pressure
Air temperature
Relative Humidity
Wind speed and direction

Sample Storage

Freezer -70°C 25 cu. ft.
Climate Controlled Walk-in
Freezer -70°C 3.2 cu. ft. ea.

Navigation

Will you be using Long Base Line (LBL) navigation? no

Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations? no

Winches

CTD Winch with .322" Electro-mechanical wire

Standard Oceanographic Cables

	Instrument(s)	Instrument Weight(s)	Maximum Depth
Conducting Hydro:	ship CTD rosette	null	3000 m
Hydro:	TMC Rosette (JMoffett)	1000 lbs	1000 m

Slip ring required? no	Number of conductors:
Non-standard wire required? yes	Type: KEVLAR for smaller rosette
Traction winch required? yes	Describe: TSE for sediment trap moorings

Portable Vans

Chemical Storage Van

Other Science Vans:

Other Science Vans:

Science Van 1
Type/size: Moffett Lab Van		Location: 01 deck
Water: yes		Power:yes
Science Van 2
Type/size: Science Storage Van		Location: 01 Deck
Water: no		Power:no

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: yes	Type: TSE IV - provided by sssg/RT
Cruise Specific Science Winch Required: no	Type:
Nets Required: no	Type:

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? yes

Details: 1) Jim Moffett will have a smaller TMC rosette (10x5l bottles) deployed with the 1000m 1/4" Kevlar line from the 01 deck hydro winch. 
   a) He will bring his Harken (clean?) block (SWL15,000#)
   b) The proposed plan is to wrap the hydro wire over with a tarp, then spool the 1000m kevlar on top of the wire.
2) Use AFT Hydro winch - Forward will be used for ships CTD rosette ?

All sedtrap/net deployment equip will need to be supplied by WHOI.

Special Requirements

Elecrical Power: yes	Identify: for Moffett lab van on 01 deck
Equipment Handling: yes	Identify: A Frame will be needed for trap deployments (pending USN apvl.)
Inter/intraship Communications: no	Identify:
Science Stowage: yes	Identify: space for sci storage van 01 deck
Water: no	Identify:

Additional Cruise Items/Activities

Explosive Devices: no Portable Air Compressors: yes Flammable Gases: yes

Small Boat Operations: no SCUBA Diving Operations: no

Hazardous Material

Will hazardous material be utilized? no

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other): 

Other required equipment and special needs: 
Date Submitted: Dec 1, 2009 1:30 PM