Woods Hole Oceanographic Institution
Cruise Planning Synopsis
SDOTS-Kirincich NE mid shelf | |
Ship | |
| R/V Tioga | |
Cruise Party | |
| Anthony Kirincich: Chief Scientist, Principal Investigator Woods Hole Oceanographic Institution Clark 343c, MS#21 Woods Hole, Ma. USA 02543 +1 508 289 2629 akirincich@whoi.edu | |
| - added Anthony Kirincich as Chief Scientist on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| - added Anthony Kirincich as Principal Investigator on Apr 9, 2018 9:41 AM by Ian G. Hanley |
Departure: May 21, 2018 | |
| WHOI dock | |
Arrival: May 23, 2018 | |
| WHOI dock | |
Operations Area | |
| South of Martha's Vineyard, over the mid-shelf | |
| - South of Martha's Vineyard, over the mid-shelf on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| Lat/Lon: 41° 0.0′ N / 71° 0.0′ W | |
| - set lat to 41° 0.0′ N, set lon to 71° 0.0′ W on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| Depth Range: 40 / 50 | |
| - set min to 40, set max to 50 on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| Will the vessel be operating within 200 NM of a foreign country? | no |
Science Objectives | |
To observe and diagnose the coastal mesoscale and submesoscale dynamics over the middle part of the New England Shelf (NES), identifying their role in driving exchange across the shelf. | |
| - To observe and diagnose the coastal mesoscale and submesoscale dynamics over the middle part of the New England Shelf (NES), identifying their role in driving exchange across the shelf. | |
Science Activities | |
Our approach pairs remote and in situ observations of the NES to characterize SMC variability and quantify across-shelf ex- changes with process modeling studies to explore the mecha- nisms of the SMCs. The field program will utilize a novel land- based HF radar system geared towards high spatial resolution in complex flow conditions. Deployments of autonomous surface vehicles around a centralized mooring array will provide obser- vations of critical vertical and horizontal gradients of density and velocity over a seasonal cycle. (1) A trio of simple hydrographic surface moorings and one subsurface mooring will be deployed in the center of the HF radar coverage area (i.e. Fig. 8) for two 6- month periods starting in spring 2018 to collect detailed timeseries of horizontal and vertical temperature and salinity gradients, local meteorological forcing, and velocity profiles over a full annual cycle of NES stratification, surface forcing, and flow conditions. The central surface mooring will sample meteorological observations using a Vaisala WXT520 weather station and water column hydrography using 11 temperature/conductivity (CT) sensors (SBE37 Microcats). A nearby subsurface mooring will support upward- and downward-looking T-RDI ADCPs to collect high resolution velocity profiles of the top 10 m and coarser resolution velocity profiles of the lower 40 m of the water column, as well as a Seagauge to observe bottom pressure. The two additional surface moorings, each with 6-8 CT sensors, will be located 6 km away from the central mooring in both the across- and along-shelf directions to allow estimates of the depth-dependent lateral hydrographic gradients and fluxes. (2) Two WHOI-owned, Liquid Robotics Wave Glider autonomous surface vehicles (ASVs) will be deployed for 4-months during each of the two mooring periods. Outfitted with AirMar 2-axis sonic anemometers, SeaBird CT sensors at water depths of 0.3 and 6.5-m, and speed sensors, the ASVs will follow pre-determined regular survey patterns, focused on resolving horizontal gradients of temperature and salinity within the surface layer at multiple scales around the mooring locations
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| - Our approach pairs remote and in situ observations of the NES to characterize SMC variability and quantify across-shelf ex- changes with process modeling studies to explore the mecha- nisms of the SMCs. The field program will utilize a novel land- based HF radar system geared towards high spatial resolution in complex flow conditions. Deployments of autonomous surface vehicles around a centralized mooring array will provide obser- vations of critical vertical and horizontal gradients of density and velocity over a seasonal cycle. (1) A trio of simple hydrographic surface moorings and one subsurface mooring will be deployed in the center of the HF radar coverage area (i.e. Fig. 8) for two 6- month periods starting in spring 2018 to collect detailed timeseries of horizontal and vertical temperature and salinity gradients, local meteorological forcing, and velocity profiles over a full annual cycle of NES stratification, surface forcing, and flow conditions. The central surface mooring will sample meteorological observations using a Vaisala WXT520 weather station and water column hydrography using 11 temperature/conductivity (CT) sensors (SBE37 Microcats). A nearby subsurface mooring will support upward- and downward-looking T-RDI ADCPs to collect high resolution velocity profiles of the top 10 m and coarser resolution velocity profiles of the lower 40 m of the water column, as well as a Seagauge to observe bottom pressure. The two additional surface moorings, each with 6-8 CT sensors, will be located 6 km away from the central mooring in both the across- and along-shelf directions to allow estimates of the depth-dependent lateral hydrographic gradients and fluxes. (2) Two WHOI-owned, Liquid Robotics Wave Glider autonomous surface vehicles (ASVs) will be deployed for 4-months during each of the two mooring periods. Outfitted with AirMar 2-axis sonic anemometers, SeaBird CT sensors at water depths of 0.3 and 6.5-m, and speed sensors, the ASVs will follow pre-determined regular survey patterns, focused on resolving horizontal gradients of temperature and salinity within the surface layer at multiple scales around the mooring locations
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Additional Info | |
| Pre-cruise Planning Meeting: Visit WHOI | |
| - Visit WHOI on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| - on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
Stations: | |
Supporting documentation: | |
Funding |
| Funding Agency: NSF | |
| Grant or contract number: 1736930 |
Scientific Instrumentation for R/V Tioga |
Shipboard Equipment | |
| ADCP 300 kHz, | |
| Flow Through System (14.5 gpm) | |
| -added ADCP 300 kHz on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| -added Flow Through System (14.5 gpm) on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
MET Sensors | |
| Air temperature | |
| -added Air temperature on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
Equipment Deployment | |
| What type of equipment will you deploy? Moorings and Wave gliders | |
| What are the dimensions? medium sized.3 | |
| - added medium sized. on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| What is the weight in air? 500-1000 lbs | |
| - added 500-1000 lbs on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
Hazardous Material | |
| Will hazardous material be utilized? | no |
| - added no on Apr 9, 2018 9:41 AM by Ian G. Hanley | |
| Describe deployment method and quantity: | |
Additional Information | |
| Brief operations description or comments: | |
| 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: | |