Woods Hole Oceanographic Institution
Cruise Planning Synopsis
| view revisions | |
AT 17 | |
Ship | |
| R/V Atlantis | |
Cruise Party | |
| Ruth Curry: Principal Investigator Woods Hole Oceanographic Institution Clark 354, MS#21 Woods Hole, Ma. USA 02543 +1 508 289 2799 rcurry@whoi.edu John Toole: Chief Scientist Organization Name USA +1 508 289 2531 jtoole@whoi.edu |
Departure: Oct 9, 2010 | |
| Woods Hole | |
Arrival: Oct 24, 2010 | |
| Woods Hole | |
Operations Area | |
| North West Atlantic | |
| Lat/Lon: 40° 30.0′ N / 70° 12.0′ W | |
| Depth Range: 0 / 5300 | |
| Will the vessel be operating within 200 NM of a foreign country? | Bermuda |
| Are visas or special travel documents required? | no |
Science Objectives | |
| Line W is one component of a long-term climate observing system that is positioned to quantify variability in the deep limb of the Atlantic meridional overturning circulation (MOC). The field program has been operating since 2004 and includes a 6-element array of instruments situated down the continental slope south of Woods Hole and is augmented by yearly occupations of a hydrographic section along this line extending toward Bermuda. The moored array, which utilizes McLane profilers, current meters plus T/C sensors, is designed to quantify changes in DWBC / Gulf Stream water properties, stratification (potential vorticity) and transport. Shipboard observations using CTD, LADCP and discrete sampling for salinity, oxygen, CFCs, SF6 and I129 measure the water column properties at high spatial resolution to help verify that the array resolves interannual signals. These measurements are key to clarifying the deep ocean response to variability in high-latitude air-sea exchanges and, ultimately, the ocean's role in global climate variability through changes in its transport of heat and freshwater. | |
Science Activities | |
| Recover and deploy 6 subsurface moorings. Conduct 26 CTD/rosette casts. Test the High Resolution Profiler (HRP2) which includes deployment/recovery of this untethered free-falling instrument package. | |
Additional Info | |
| Pre-cruise Planning Meeting: Visit WHOI | |
| Meeting Notes: 9/18 Some combination of John, Ruth, and Scott Worrilow will attend the pre-cruise planning meeting | |
| Media personnel on board: Video | |
| To be determined (at this time). We were asked to save room for 1 or 2 media/outreach people, if possible. | |
Stations: | |
Supporting documentation: | |
| »WM6_2008_Model_(1).pdf | |
| »WM4P_2008_Model_(1).pdf | |
| »HRP_operation_summary_montgomery.pdf | |
| »LineW_stamap.jpg | |
| »W_station_pos.txt | |
| »HRP2_atsea.pdf | |
Funding |
| Funding Agency: NSF | |
| Grant or contract number: OCE-0726720 |
Scientific Instrumentation for R/V Atlantis |
Shipboard Equipment | |||||||||||
| Bathymetry System 12 kHz | |||||||||||
| ADCP 75 kHz | |||||||||||
| Deionized Water System | |||||||||||
| Navigation - Heading | |||||||||||
CTD/Water Sampling | |||||||||||
| 911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors | |||||||||||
| SBE43 oxygen sensor | |||||||||||
Critical CTD Sensors | |||||||||||
CTD-Related Equipment | |||||||||||
Lowered Acoustic Doppler Current Profiler (LADCP)  | |||||||||||
Hydrographic Analysis Equipment | |||||||||||
| Salinometer | |||||||||||
| Salt Bottles (2 cases of 125 ml provided) | |||||||||||
| Oxygen Sample Bottles (available in 150 ml sizes) | |||||||||||
MET Sensors | |||||||||||
| Barometric Pressure | |||||||||||
| Air temperature | |||||||||||
| Relative Humidity | |||||||||||
| Wind speed and direction | |||||||||||
Sample Storage | |||||||||||
| Freezer -70°C 3.2 cu. ft. ea. | |||||||||||
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? | no | ||||||||||
Winches | |||||||||||
| Mooring / TSE winch | |||||||||||
| CTD Winch with .322" Electro-mechanical wire | |||||||||||
Standard Oceanographic Cables | |||||||||||
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Specialized Deck Equipment | |||||||||||
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Over the Side Equipment | |||||||||||
| Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? | yes | ||||||||||
Details:
The system for deploying/recovering HRP-II includes: a rolling cart on which the HRP-II is secured while on deck, track that is bolted to the deck, and a hydraulic lifting rig that pivots to move the lift point beyond the ship’s stern, so the HRP-II can be deployed and recovered without damage due to collisions with the ship (see supporting document HRP2_atsea.pdf). | |||||||||||
Special Requirements | |||||||||||
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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: | |||||||||||
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: | |||||||||||
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: | |