IquiqueGeodesy2017

Ship

R/V Atlantis

Vehicles

ROV Jason

Cruise Party

Jeff McGuire: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution Clark South 272A, MS#24 Woods Hole, Ma. USA 02543
+1 508 289 3290
jmcguire@whoi.edu

Departure: Arica Chile on Feb 26, 2017

Arrival: arica chile on Mar 9, 2017

Mobilization Date: Feb 24, 2017

Demobilization Date: Mar 11, 2017

Supporting documentation:

Operations Area: Offshore Iquique Chile

Lat/Lon: 21° 0.0′ S / 70° 40.0′ W

Depth Range: 1000 / 2100

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

Science objectives

The goal is to use seafloor geodetic equipment to record the strain associated with the Northern Chile subduction zone.   We will install instruments that are expected to remain on the seafloor for 2-3 years and will be recovered on a later cruise.   Our collaobrators from Germany will use a waveglider to visit their already installed instruments on the seafloor.

Science Activities

We will install 9 systems on the seafloor.  All of these systems will be pre-deployed on a wire in an array that is about 15 km long.   Then, assuming all goes well, we will conduct one very long Jason dive to vistit all of them and complete their installations,  verify the seafloor conditions and benchmark quality, and collect initial measurements.

Additionally some of our colleagues from GEOMAR in Germany will conduct waveglider based communications with their equipment that is already on the seafloor in this vicinity.

Pre-cruise planning meeting: Visit WHOI

We've already had a few meeting with DSL. can do one in the village in either december or january.

Stations:

Funding Agency: NSF #1459095

- added NSF #1459095 on Nov 28, 2016 4:59 PM by
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R/V Atlantis

Shipboard Equipment

Bathymetry System 12 kHz
Bathymetry System 3.5 kHz
ADCP 75 kHz
Relay Transponder for Wire Use
12 kHz Pinger for Wire Use
Transponder Navigation - Sonardyne USBL
Navigation - Heading
Multibeam
Navigation - Position

Shipboard Communication

Basic Internet access via HiSeasNet
Is there an expectation to use Skype or any other real-time video conference program?

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors

Critical CTD Sensors: 

CTD-Related Equipment

Lowered Acoustic Doppler Current Profiler (LADCP)


Storage Notes:

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

Navigation

USBL
GPS

Navigation Notes: We will need real-time naviation of USBL beacon on the end of the trawl wire to know the release location of our packages when they are deployed to the seafloor.

Winches

CTD Winch with .322" Electro-mechanical wire
Mooring / TSE winch
Trawl Winch with .681 fiber optic

Winch Notes: We will be deploying approximately 12 significant packages (4m high tripods, 25 m mooring, sets of anchors) to the seafloor with the trawl winch.   we will do all of this work upon arriving on station and then my understanding is that we will have to switch the main winch over to Jason for the remaineder of the cruise?



Wire Notes:

Slip ring required? no	Number of conductors:
Non-standard wire required? no	Type:
Traction winch required? no	Describe:

Other Science Vans:

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: no

Small Boat Operations: no SCUBA Diving Operations: no

Hazardous Material

Will hazardous material be utilized? yes

Describe deployment method and quantity:
9 of our instruments will have lithium battery packs.

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: 

ROV Jason

Site Survey

Will you provide detailed charts of the work area(s)?  no
Current Chart(s):


If no, willl you need Jason 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

Will you be using Ultra-short baseline (USBL) navigation? no

Will you be using Doppler/GPS navigation? no

Sensors & Samplers

CTD
Digital still camera: down-looking
Digital still camera: forward-looking
Search Sonar
What type of samples do you expect to collect?
no physical samples will be collected

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 Jason?
yes

Has this equipment been used on Jason 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.
A linkquest acoustic modem.

Does this equipment use an external pressure housing?  yes

If yes, what is the pressure rating? 
and test pressure? 

Or has the pressure case been tested per Alvin Pressure Test requirements?  no

Housing schematic with dimensions and include air and water weights.

Does the equipment have an associated computer or control panel for remote operation from the personnel sphere?  no

Air weight of this equipment?  7.6 kg

Water weight of this equipment?  4.1 kg

Does the equipment require data or a power interface from the vehicle?  yes

Does this equipment require hydraulic inputs from the vehicle?  no
Hydraulic schematic of the equipment requirements.

Does this equipment require manipulation?  no

If yes, please describe how the equipment is to be manipulated.

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

If recovering equipment deployed with another vehicle, provide pressure rating: 
and test pressure: 

Does this equipment use any glass spheres for either buoyancy or as pressure housings?  no

Hazardous Material

Will hazardous material be utilized? no

Additional Information

Brief operations description or comments:

Date Submitted: Nov 28, 2016 4:59 PM