Woods Hole Oceanographic Institution

Cruise Planning Synopsis


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SVC V - Evans

Ship

RV Neil Armstrong

Cruise Party

Rob. Evans: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution Clark 263, MS#22 Woods Hole, Ma. USA 02543
+1 508 289 2673
revans@whoi.edu

Departure: Jun 9, 2016

WHOI

Arrival: Jun 13, 2016

WHOI

Operations Area

Across the shelf southeast of Martha's Vineyard
Lat/Lon: 40° 0.0′ N / 70° 0.0′ W
Depth Range: 50 / 2800
Will the vessel be operating within 200 NM of a foreign country? no

Science Objectives

To carry out geophysical surveying (seismic and tow-camera imagery) across the shelf-break southeast of Martha's Vineyard over areas of potential fluid seepage and seafloor failure.

recovery of  5 seafloor instruments.

Deploy a wave-glider and collect a profile of towed magnetics data.

deployment and recovery of a shielded ocean bottom seismometer

Science Activities

-deploy LDEO seismometer
-collect an across-shelf magnetics profile
-recover 5 WHOI seafloor MT instruments
-deploy waveglider while MT instruments are being recovered
-tow a series of seismic lines with sparker source and streamer
-carry out a series of deep-tow camera profiles

Additional Info

Pre-cruise Planning Meeting: Visit WHOI

Stations:

Supporting documentation:

»WHOI_MT_Instruments.xlsx
»Proposed_Test_of_LDEO_Horizontal_Pressure_Gradient_Instrument.pdf
»WayPoints.xlsx

Funding

Funding Agency: WHOI
Grant or contract number: 27500075

Scientific Instrumentation for R/V Armstrong

Shipboard Equipment

Bathymetry System 12 kHz
A-Frame
Transponder Navigation - Sonardyne USBL
Navigation - Heading
Multibeam
Knudsen SBP
EM122 (12 kHz) Multibeam Echosounder
EK80 Sonar
Dynamic Positioning System
XBT
USBL Nav
Computer Network
Towed Magnetometer

Shipboard Communication

Basic Internet access via HiSeasNet

Critical CTD Sensors

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: USBL navigation for use during tow-cam operations

Winches

CTD Winch with .322" Electro-mechanical wire
Winch Notes: The Tow Cam will be used from the CTD winch and wire.
Winch Notes: A MASH2K heave compensating winch with line will be mounted on the aft deck to be used for deployment of the LDEO seismometer.

Standard Oceanographic Cables

Slip ring required? no
Non-standard wire required? no
Traction winch required? no

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? yes
Details: A seismic streamer and sparker source will be deployed over the stern. The streamer has a winch which will be mounted on aft deck.

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?no
Describe deployment method and quantity:

Radioactive Material

Radioiosotopes:no

Additional Information

Is night time work anticipated on this cruise?yes
Specialized tech support (Seabeam, coring, other):
EK80 and multibeam.
Other required equipment and special needs:
Recovery of seafloor MT instruments will require crane use over the side.

deployment of waveglider will require crane work over the side.

Recovery of LDEO seismometer will most likely be through A-frame.

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: