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Ship

R/V Atlantis

Vehicles

HOV Alvin

Cruise Party

Christopher Reddy: Principal Investigator Woods Hole Oceanographic Institution Fye 107B, MS#04 Woods Hole, Ma. USA 02543 +1 508 289 2316 creddy@whoi.edu Robert Swarthout: Principal Investigator Appalachian State University United States +1 585 727 0799 swarthoutrf@appstate.edu David Valentine: Chief Scientist, Principal Investigator University of California Santa Barbara 1006 Webb Hall, Department of Earth Science Santa Barbara, CA US 93117 +1 805 893 2973 valentine@geol.ucsb.edu

Departure: Nov 25, 2021
Gulfport, MS
Arrival: Dec 9, 2021
St. Pete
Operations Area
Gulf of Mexico
Lat/Lon: 27° 0.0′ N / 92° 0.0′ W
Depth Range: 300 / 3000
Will the vessel be operating within 200 NM of a foreign country?	Mexico, but in US waters
Are visas or special travel documents required?	no
Science Objectives
The primary scientific objectives of the cruise are to track the chemical changes to oil during the transport from sea floor to atmosphere, and to identify microbiological responses to the input of dissolved hydrocarbons to the Ocean's interior. Secondary objectives include sampling of sea surface slicks and photosynthetic communities.
Science Activities
Alvin Operation at Oil Seeps.  This will include:  Oil Sampling; Water Sampling and sediment push Coring.  UAV (Aerial Drones) operation.  This will include flying a drone-based sampling grid at each Alvin Dive site, as well as drone-based aerial reconnaisance flights.  We would like to conduct these operations simultaneous with Alvin operations.  CTD Casts:  We plan CTD casts to collect water samples.  Estimated number of casts for the entire cruise is 12. Small boat (RHIB) sampling of surface slicks.  This will be accomplished using a pole and net approach and is dependent on weather and sea state.  We would like to conduct these operations simultaneous with Alvin operations. Net sampling:  This will be accomplished with hand held nets deployed from the stern at low speed.
Additional Info
Pre-cruise Planning Meeting: Teleconference
Stations:
Supporting documentation:

Funding

Funding Agency: NSF

Grant or contract number: 1756947

Scientific Instrumentation for R/V Atlantis

Shipboard Equipment
ADCP 75 kHz
Bathymetry System 3.5 kHz
Deionized Water System
Fume Hood
Multibeam
Navigation - Heading
Navigation - Position
Transponder Navigation - Sonardyne USBL
Shipboard Communication
Basic Internet access via HiSeasNet
CTD/Water Sampling
911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
SBE43 oxygen sensor
Wet Labs ECO-AFL fluorometer
Wet Labs C*Star transmissometer (660nm wavelength)
Wet Labs FLNTURTD Combination Flourometer and Turbidity Sensor
Critical CTD Sensors
MET Sensors
Air temperature
Barometric Pressure
Relative Humidity
Short Wave Solar Radiation
Wind speed and direction
Sample Storage
Climate Controlled Walk-in
Freezer -70°C 25 cu. ft.
Freezer -70°C 3.2 cu. ft. ea.
Refrigerator 8.6 cu. ft.
Scientific Walk-in Freezer
Storage Notes:
Navigation
Will you be using Long Base Line (LBL) navigation?	no
How many nets?	null
How many tansponders?	null
Will you be using Ultra-short baseline (USBL) navigation?	no
Navigation
USBL
GPS
Navigation Notes:
Winches
CTD Winch with .322" Electro-mechanical wire
Winch Notes:
Wire use and application
Other
Winch Notes: Small hand thrown nets for sea surface sampling.
Standard Oceanographic Cables
Slip ring required? no Non-standard wire required? no Traction winch required? no
Portable Vans
Chemical Storage Van
Specialized Deck Equipment
Mooring Deployment/Recovery Equipment Required: no Type:  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?	no
Special Requirements
Elecrical Power: no Identify  Equipment Handling: no Identify:  Inter/intraship Communications: no Identify:  Science Stowage: no Identify:  Water: no Identify:
Additional Cruise Items/Activities
Explosive Devices:	no
Portable Air Compressors:	no
Flammable Gases:	yes
Small Boat Operations:	yes
SCUBA Diving Operations:	no
Hazardous Material
Will hazardous material be utilized?	yes
Describe deployment method and quantity: We will compile MSDS information in the coming months.
Radioactive Material
Radioiosotopes:	no
Additional Information
Is night time work anticipated on this cruise?	yes
Specialized tech support (Seabeam, coring, other): Due to COVID, we may be understaffed for MBES mapping in support of Alvin dive operations.  Having an SSSG who can assist with mapping would be most useful.
Other required equipment and special needs:

Scientific Instrumentation for HOV Alvin

Current Chart(s):

What type of samples do you expect to collect?Oil, sediment, water, asphalt, carbonate. null

Site Survey
Will you provide detailed charts of the work area(s)?	no
If no, willl you need R/V Atlantis to generate maps of the work area(s)?	no
Will you need post-dive maps of the work area generated?	no
Navigation
Will you be using Long Base Line (LBL) navigation?	no
How many nets?	0
How many tansponders?	0
Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations?	yes
Vehicle Equipment
Push corers (12-pack rack)
Search sonar
CTD
Small capacity slurp samplers
Large capacity slurp samplers: multi-chamber
Bio collection boxes: 12 x 12 x 12
Niskin bottles (2L bottle)
Special micro-bio box 12" x 18" x 12"
Tube cores: 12 core array (12" x 18" milk crate base)
Tube cores: 24" tube cores
Elevators
Will you be using elevators to transport samples to the surface?	no
If yes, how many would you anticipate?
Science Supplied Equipment
Are you supplying equipment to be used on HOV Alvin	yes
Has this equipment been used on Alvin before?	no
Please give a brief description of the equipment, its intended purpose, the cruise # it was last used on if any and its deployment method. We will bring sampling devices to collect seeping oil.  These samplers are simply modified push cores.  I think they are 20-inch barrels, similar in weight to traditional cores.
Does this equipment use an external pressure housing?	no
Has the pressure housing been tested per Alvin Pressure Test requirements?	no
Pressure housing schematic with dimensions and include air and water weights.
Air weight of this equipment?	TBD
Water weight of this equipment?
Does the equipment require a power interface from Alvin?	no
Voltage required
Power required
Data Interface
Does the equipment meet the electrical requirements of the Alvin User Manual?	no
Please provide power and comms specifics, wiring diagram, pinout, and wiring harness in advance of the cruise.
Does this equipment require hydraulic inputs from the vehicle?	no
Hydraulic schematic of the equipment requirements.
Does this equipment require manipulation?	yes
If yes, please describe how the equipment is to be manipulated: The Oil and samplers will be mounted to the front basket and deployed/retreived with handles, using the manipulator.  They will rack up with the core tubes.
Will this equipment be deployed off the vehicle?	no
If yes, please describe how the equipment is intended for deployment:
If yes, will the equipment be disconnected from the vehicle and left in situ?	no
How long will the deployment be?
Will the equipment be recovered by the same vehicle?	no
Do you intend to recover any other previously deployed equipment?	no
If yes, please describe this equipment:
Does this equipment use any glass spheres for either buoyancy or as pressure housings?	no
Does the equipment have an associated computer or control panel for remote operation from the personnel sphere?	no
Has the computer or control panel been gas tested for use in the personnel sphere?	no
Hazardous Material
Will hazardous material be utilized?	no
Describe deployment method and quantity:
Additional Information
Brief operations description or comments: We will visit several oil seeps at different depths with the primary goal of collecting oil samples at each location.
Navy Clearance:

Checklist & Notes

Checklist
U.S. Customs Form:	no
Diplomatic Clearance:	no
Date Submitted:
Date Approved:
Agent Information:
Countries:
Notes:
Isotope Use Approval:	no
Isotope Notes:
SCUBA Diving:	no
Checklist
SSSG Tech: