+--------------------------------------------------------------------------+ | OCEANUS CRUISE SYNOPSIS | +--------------------------------------------------------------------------+ Voyage - Leg: OC 419 Voyage Dates: 09-27 Nov 2005 Chief Sci(s): Dave Fratantoni, Bob Weller (Toole) Address: WHOI Clark 303A Phone: 508-289-2908 Email: dfratantoni@whoi.edu Cruise Objective: This is the first of 5 cruises in the CLIMODE program. 9/27 - This is the first cruise of CLIMODE. The CLIvar Mode Water Dynamic Experiment is a project to study the dynamics of the formation of the substropical mode water of the North Atlantic. This water mass, with a temperature of close to 18DEGC, is formed just south and east of the Gulf Stream where there is energetic air-sea interaction and mixing as well as stirring. Different components of CLIMODE seek to quantify the magnitude of different processes at work in forming 18DEGC water. 9/27 - In this cruise the objectives are to deploy two Moored Velocity Profiler (MVP) moorings (Moorings C and D) that will for one year collect vertical temperature, salinity, and velocity profiles in the 18DEGC water formation region, to deploy a surface mooring (Mooring F) in the region of largest winter heat losses to better quantify air-sea interaction in the region, to deploy two sound source moorings (Moorings A and B) to establish an array of sound sources for tracking RAFOS floats to observe the velocity field of the region, and to obtain CTD profiles. Science Activities: 1) install 5 moorings: 1 surface flux mooring, 4 subsurface moorings. (2) deploy 17 floats, 5 drifters (3) ~20 CTD stations More details later. Operations Area: western subtropical Atlantic SSSG Tech: sssg @oceanus.whoi.edu Departure Port: Woods Hole, MA Agent: Master R/V Oceanus Attn: Scientist's Name c/o WHOI 266 Woods Hole Rd. Woods Hole, MA 02543 Contact: John Dyke tel. (508) 289-3770 fax: (508) 457-2185 email: jdyke@whoi.edu Arrival Port: Woods Hole, MA Agent: Same as above Installed Scientific 12 kHz Transducer Equipment: ADCP CTD/Rosette System -dual T, S. oxygen. fluorometer if available. ISUS nitrate if available. Salinometer Oxygen Titration Apparatus -70 Deg Freezer IMET - all sensors Seanet WHOI-Provided Science Tools: Program-Provided Science Tools: Shipboard Equipment/Nav: Other Requirements: Night Work Anticipated power for mooring winch (contact: j kemp) ; moorings require crane/a-frame, capstan, tuggers (1) need to be able to reliably send O(100 kb) data files to/from WHOI daily. (2) loading of oceanus is an issue for this cruise. contact jeff lord and john kemp directly for status. (3) george tupper will be CTD contact. please contact him directly with all CTD / salinometer / oxygen rig questions. (4) we'd like to be able to use ship's hydrophone for 9-12 kHz acoustic release transponding. possible? (5) both 75 kHz and 150 kHz shipboard ADCP if possible. (6) no lowered ADCP needed. (7) depth sounds (12 kHz) needed for pre deployment surveys of mooring sites. Notes: 9/27 - Mooring Stations Mooring F - 38.5N, 65W Mooring A - 31N, 60W Mooring B - 34N, 54W Mooring C - 38.36N, 55.86W Mooring D. 36.2N, 60.1W 9/27 - The surface mooring (F) will be deployed in the Gulf Stream, and there is concern that in some weather conditions that this will not be possible. Thus, the weather conditions and forecasts will be monitored in early November and based on those forecasts the decision will be made to either proceed counterclockwise around the cruise track, deploying the surface mooring, Mooring F, first or to move clockwise around, deploying Mooring F last. If, for example, the weather at Mooring F on November 10 and 11 is predicted to be calm, that mooring would be deployed first. On the other hand, if there is no clear weather window, the cruise would work clockwise around the track, banking as much time as possible to have in hand for the deployment of Mooring F and CTD stations to be done on the final leg(s) into Woods Hole. Additional variants could be developed if weather at the MVP moorings offers an opportunity or poses a challenge compared to that at the sound source moorings. 9/27 - Our first choice is to do moorings F-D-C-B-A in that order, but if weather is a significant issue we will go south first and do A-B-C-D-F. we probably won't be able to make that call until we are reasonably confident in the short-term weather forecast -- might be as late as the evening before sailing. We hope to load the ship to allow for either possibility. 9/27 - Cruise Plan (Clockwise Option - planned speed 10 kts) Nov 7, 8 Load Nov 9 1000 (local) Depart WHOI Nov 11 2216 Arrive Mooring D Nov 12 0616 Depart Mooring D Nov 13 0428 Arrive Mooring C 1228 Depart Mooring C Nov 14 1426 Arrive Mooring B 2226 Depart Mooring B Nov 16 1010 Arrive Mooring A 1810 Depart Mooring A for Mooring F Nov 17 CTDs along track Nov 18 CTDs along track Nov 19 0800 Arrive Mooring F Survey and trial run for Gulf Stream deployment - day CTDs - night Nov 20 0800 Deploy Mooring F; survey anchor Depart Mooring F for Woods Hole Nov 21-26 In transit/weather days/CTDs (312 nm transit) Nov 27 0800 Arrive Woods Hole (Counter-clockwise option - 10 kts) Nov 7, 8 Load Nov 9 1000 (local) Depart WHOI for Mooring F Nov 10 CTDs, transit Nov 11 CTDs, transit Nov 12 0800 Arrive Mooring F, survey and trial deployment Nov 13 0800 Deploy F, anchor survey Nov 14 0000 Depart for Mooring A Nov 15 CTDs, transit Nov 16 CTDs, transit Nov 17 0600 Arrive Mooring A 1800 Depart Mooring A Nov 19 0600 Arrive Mooring B 1800 Depart Mooring B Nov 20 2000 Arrive Mooring C Nov 21 0800 Depart Mooring C Nov 22 0600 Arrive Mooring D 1800 Depart Mooring D Nov 22-26 In transit/weather days/CTDs (603 nm transit) Nov 27 0800 Arrive Woods Hole lithium batteries used aboard are installed in instruments that are either expendable (floats) or will be recovered on a subsequent cruise. all used materials will be disposed of according to whoi policy. Navy Clearance Status: Last Modified: 12/13/2006 Check List: Required? Comments US Customs Form No Explosives Clearance No Isotope Use Approval No Diplomatic Clearance Yes Bermuda SCUBA Diving No