Woods Hole Oceanographic Institution
Cruise Planning Synopsis
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AR46-04: Alford "NISKIN 2" | |
Ship | |
| RV Neil Armstrong | |
Cruise Party | |
| Matthew Alford: Chief Scientist Organization Name US +1 858 246 1646 malford@ucsd.edu Leif Thomas: Principal Investigator Stanford University +1 650 721 1140 leift@stanford.edu Caitln Whalen: Principal Investigator Applied Physics Laboratory, University of Washington +1 206 685 1505 cwhalen@apl.uw.edu |
Departure: Aug 16, 2020 | |
| Reykjavik, Iceland | |
Arrival: Sep 20, 2020 | |
| Woods Hole | |
Operations Area | |
| Lat/Lon: 59° 30.0′ N / 26° 0.0′ W | |
| Depth Range: 0 / 3000 | |
| Will the vessel be operating within 200 NM of a foreign country? | no |
Science Objectives | |
| Obtain oceanic measurements from the North Atlantic storm track. The experiment aims at better understanding the generation, propagation and dissipation of internal waves in the near-inertial frequency spectrum and their interaction with meso- and submesoscale features in order to refine forecasting of upper-ocean shear. | |
Science Activities | |
We will be recovering three full-depth subsurface moorings comprised of syntactic foam floatation, current meters, temperature, salinity and conductivity sensors, and acoustic releases. These moorings are all in approximately 2900m water (locations listed in station information below). We will also deploy a variety of lagrangian drifters, floats (EM-APEX), autonomous vehicles (Slocum and micorstructure gliders, Seagliders), and wave buoys. Finally, we will use shipboard sampling sytems (FastCTD and Lowered ADCP on CTD rosette) to sample velocity shear and turbulence in the upper ocean. | |
Additional Info | |
| Pre-cruise Planning Meeting: Teleconference | |
Stations: | |
| Mooring 1 (M1) Distance: null Days: 1 Latitude: 59° 6.087’ N Longitude: 21° 11.93’ W Mooring 2 (M2) Distance: null Days: 1 Latitude: 58° 57.959’ N Longitude: 21° 11.799’ W Mooring 3 (M3) Distance: null Days: 1 Latitude: 59° 1.813’ N Longitude: 21° 25.043’ W | |
Supporting documentation: | |
| »Iceland_ops_area.png | |
Funding |
| Funding Agency: ONR/NAVY | |
| Grant or contract number: #N00014-18-1-2423 |
Scientific Instrumentation for R/V Armstrong |
Shipboard Equipment | |||||||||||
| ADCP 300 kHz | |||||||||||
| ADCP 150 kHz | |||||||||||
| A-Frame | |||||||||||
| Science Underway Seawater System | |||||||||||
| EM122 (12 kHz) Multibeam Echosounder | |||||||||||
| EK80 Sonar | |||||||||||
| Dynamic Positioning System | |||||||||||
| WAMOS | |||||||||||
| ADCP 38 kHz | |||||||||||
| Crane | |||||||||||
| EM710 MkII (40 to 100 kHz) Multibeam Echosounder | |||||||||||
| Shipboard Equipment Notes:
We have also requested the TSE Spooler from the winch pool and prefer no divider on the drum if possible. We are requesting to use the shipboard system to ping our releases once the moorings are deployed if possible. Otherwise, we have our own deckset which we can also use. We are also requesting the use of the full LADCP equipment set offered by WHOI (batteries, downlooking 150, uplooking 300, a spare, clamps, etc.). | |||||||||||
Shipboard Communication | |||||||||||
| Basic Internet access via HiSeasNet | |||||||||||
| Is there a need to receive data from shore on a regular basis? | |||||||||||
| Is there a need to transfer data to shore on a regular basis? | |||||||||||
| Shipboard Communication Notes: Our group uses a task management tool called Hive that is somewhat crucial to our operations in the case of instrument failure. We are not sure how this new platform will perform on low bandwidth. If at all possible, increased bandwidth wouild be ideal. We can discuss this in more detail during the pre-cruise meeting. | |||||||||||
CTD/Water Sampling | |||||||||||
| Wet Labs ECO-AFL fluorometer | |||||||||||
| Wet Labs C*Star transmissometer (660nm wavelength) | |||||||||||
| SBE43 oxygen sensor | |||||||||||
| 911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors | |||||||||||
| Biospherical underwater PAR (1000m depth limit) with reference Surface PAR | |||||||||||
| Wet Labs FLNTURTD Combination Flourometer and Turbidity Sensor | |||||||||||
Critical CTD Sensors | |||||||||||
| We do not need bottles on the CTD, but do need the CTD sensors and usual suite plus LADCP. | |||||||||||
CTD-Related Equipment | |||||||||||
Lowered Acoustic Doppler Current Profiler (LADCP)  | |||||||||||
MET Sensors | |||||||||||
| Barometric Pressure | |||||||||||
| Air temperature | |||||||||||
| Precipitation | |||||||||||
| Relative Humidity | |||||||||||
| Wind speed and direction | |||||||||||
| Short Wave Solar Radiation | |||||||||||
| Long Wave Solar Radiation | |||||||||||
| 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 | |||||||||||
| GPS | |||||||||||
| Navigation Notes: | |||||||||||
Winches | |||||||||||
| Trawl Winch with 9/16th trawl wire | |||||||||||
| UNOLS Winch Pool | |||||||||||
| Winch Notes:
We have requested the TSE Spooler for mooring operations. We will also be bringing our own FastCTD winch system for survey ops. | |||||||||||
Wire use and application | |||||||||||
| CTD Winch with .322" Electro-mechanical wire | |||||||||||
| Trawl Winch with 9/16th trawl wire | |||||||||||
| 3/8" Hydro Wire | |||||||||||
| Winch Notes:
We will bring dragging gear for use with trawl winch in case acoustic releases on moorings fail. Will bring winch for fastCTD wire, appendix A compliant. Will mount LADCP on CTD rosette. | |||||||||||
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: FastCTD winch | |||||||||||
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: We will have a small amount of isopropyl alcohol and aerosol cans. We will also be recovering instruments with spent lithium ion batteries. We are not currently planning to bring any additional lithium batteries on board between the previous cruise (BLT1) and NISKINE2. | |||||||||||
Radioactive Material | |||||||||||
| Radioiosotopes: | no | ||||||||||
Additional Information | |||||||||||
| Is night time work anticipated on this cruise? | yes | ||||||||||
| Specialized tech support (Seabeam, coring, other): In case of FastCTD failure, we plan to profile with the shipboard CTD. This would be done as a 24-hr operation. | |||||||||||
| 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: | |