{"id":6513,"date":"2016-12-14T09:30:10","date_gmt":"2016-12-14T09:30:10","guid":{"rendered":"https:\/\/blogs.gov.scot\/marine-scotland\/?p=6513"},"modified":"2018-04-11T10:11:25","modified_gmt":"2018-04-11T09:11:25","slug":"mrv-scotia-survey-1816s-programme","status":"publish","type":"post","link":"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/12\/14\/mrv-scotia-survey-1816s-programme\/","title":{"rendered":"MRV Scotia Survey 1816S Programme"},"content":{"rendered":"

Duration<\/strong>: 10-20 December 2016<\/p>\n

Gear:<\/strong><\/p>\n

Sea-Bird CTD\/Carousel, sledge with OPC and CTD, ADCP mooring equipment, water filtering equipment<\/p>\n

Objectives:<\/strong><\/p>\n

    \n
  1. Test the CTD and sledge\/OPC in the Buchan Deep off Peterhead.<\/li>\n
  2. Perform routine hydrographic sampling at stations along the long term monitoring JONSIS section in the northern North Sea.<\/li>\n
  3. Perform routine hydrographic sampling at stations along the long term monitoring Faroe-Shetland Channel sections: Fair Isle-Munken and Nolso-Flugga.<\/li>\n
  4. Conduct combined plankton\/hydrographic observations by deploying the sledge with OPC\/CTD at previous Aries stations in the Faroe-Shetland-Channel.<\/li>\n
  5. Take salinity, nutrient, and oxygen samples along standard lines.<\/li>\n
  6. Deploy ADCP mooring in Pentland Firth (58\u00b0 43.57′ N, 003\u00b0 14.18′ W).<\/li>\n
  7. Train staff (who haven\u2019t been on Scotia before) on oceanographic work.<\/li>\n
  8. The vessel-mounted ADCP will be run during work on the hydrographic monitoring lines.<\/li>\n
  9. If sheltering in a suitable location (around Shetland, Orkney, Pentland Firth) due to bad weather conduct VMADP survey.<\/li>\n<\/ol>\n

    General Procedure:<\/strong><\/p>\n

    After departing Aberdeen and completing appropriate drills, weather permitting the vessel will proceed to the eastern end of the JONSIS line to commence sampling with the CTD and carousel water sampler (Table 1, Figure 1). On route test deployments of the CTD, carousel, and sledge\/OPC will take place around the Buchan Deep.<\/p>\n

    After completing the Jonsis line and if the weather allows, the vessel will deploy the mooring in the Pentland Firth at position 58\u00b0 43.57′ N, 003\u00b0 14.18′ W, (Figure 2, sub surface single string mooring consisting of an anchor, chain, acoustic release and streamlined sub surface buoy containing the ADCP; the total length of the mooring will not exceed 8 m above the seabed).<\/p>\n

    The vessel will then proceed to the Faroe-Shetland Channel. Depending on weather conditions the vessel will commence hydrographic sampling and OPC measurements along the Fair Isle-Munken survey line (Table 2, Figure 1). On completion of the Fair Isle-Munken line the vessel will proceed to conduct hydrographic sampling and OPC measurements on the Nolso Flugga survey line (Table 3, Figure 1). Towed deployments of the OPC sampler will be carried out only at selected stations along the two lines in the Faroe-Shetland-Channel.<\/p>\n

    VMADCP surveys will be conducted if the vessel is sheltering from poor weather in suitable locations around Shetland, Orkney or the Pentland Firth.<\/p>\n

    Scientific Procedures:<\/strong><\/p>\n

    It is expected that deployments of hydrographic equipment will be carried out with the CTD crane whilst the vessel is on station.<\/p>\n

    The sledge (OPC\/CTD) deployments from the trawl deck will use the plankton crane.<\/p>\n

    Four container laboratories will be required: the sonar container, a dry container for electronics work and sampler communications, a wet lab with wide benches and sink, and the chemistry container.<\/p>\n

    The thermosalinograph will be run throughout the survey.<\/p>\n

    (NOTE: The survey will take Scotia<\/em> into the Foinaven Development Area. This is now standard practice, and normal on-site communications will be established with the Foinaven coordinating officer).<\/p>\n

    Health and Safety:<\/strong><\/p>\n

    The procedures described above are covered by the following Oceanography Group<\/u> risk assessments:<\/p>\n