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RRS Discovery D333
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Discovery (74E3) |
Cruise identifier | D333 |
Cruise period | 2008-10-09 — 2008-10-24 |
Status | Completed |
Port of departure | Santa Cruz de Tenerife, Spain |
Port of return | Santa Cruz de Tenerife, Spain |
Purpose | Research |
Objectives | This equipment trials cruise has provided opportunities for test and verification of technology under development at the Proudman Oceanographic Laboratory (POL), the Scottish Association for Marine Science (SAMS) and the National Oceanography Centre, Southampton (NOC,S). This includes equipment developed during the first year of funding under OCEANS 2025 (theme 8). Testing technology in the ocean environment is invaluable in assessing fitness for purpose.
Specifically, the cruise tested: A Spar wave buoy (NOC,S) biogeochemical sensors (NOC,S); an UAV system (NOC,S); a video grab system "HyBis" (NOC,S), A benthic Multicore (NOC,S), A benthic lander and associated torroidal Telemetry buoy (POL), and a shallow tow towfish (POL). Testing in Spanish waters (near Tenerife, Gran Canaria and Fuerteventura) has been invaluable. The time on passage has been minimised (the transition from deep to shallow water is less than a days steaming) and the calm conditions to the southwest of the islands in the consistent prevailing north easterly winds have enabled deployment and recovery techniques to be tried and optimised in safety. |
Chief scientist | Matthew Mowlem (National Oceanography Centre, Southampton) |
Project | Multidisciplinary Equipment Trials Cruise (METriC) |
Coordinating body | National Oceanography Centre, Southampton |
Cruise report | (5.13 MB) |
Ocean/sea areas | |
General | North Atlantic Ocean |
Specific | Canary Islands |
Measurements | |
Physical oceanography | |
CTD stations | Description: Equipment trials of Lab on a chip nitrate sensor with CTD as reference. CTD data retained. Station 16466#H 15:12- 17:12 (GMT), 21/10/2008 |
CTD stations | Description: Equipment trials of Lab on a chip nitrite sensor with CTD as reference. CTD data retained. Sensor failed at depth. Station 16466#H 15:12- 17:12 (GMT), 21/10/2008 |
CTD stations | Description: Equipment trials of idronaut CTD with pH sensors. data retained. 9:06- 12:30 (GMT), 21/10/2008 |
Surface drifters/drifting buoys | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station 16449#B, 12:45 (GMT), 15/10/2008 - 7:27 (GMT) 18/10/08 at 27 51.6 N, 14 48.5 W |
Surface drifters/drifting buoys | Description: wave height measurements (15Hz) using spar buoy with video and stills images for breaker identification. Station 16447#B, 07:30-9:14 (GMT), 15/10/2008 |
Surface drifters/drifting buoys | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station16463#B, 14:15 - 17:50 (GMT), 21/10/2008 recovered at 27 59.6N, 14 03.9 W |
Surface drifters/drifting buoys | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station16469#B, 13:10 - 18:39 (GMT), 22/10/2008 recovered at 27 55.5N, 14 07.6 W |
Surface drifters/drifting buoys | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station 16457#B, 08:50-18:10 (GMT), 19/10/2008 recovered at 27 55.5N, 14 05.3 W |
Instrumented wave measurements | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station 16449#B, 12:45 (GMT), 15/10/2008 - 7:27 (GMT) 18/10/08 at 27 51.6 N, 14 48.5 W |
Instrumented wave measurements | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station16469#B, 13:10 - 18:39 (GMT), 22/10/2008 recovered at 27 55.5N, 14 07.6 W |
Instrumented wave measurements | Description: wave height measurements (15Hz) using spar buoy with video and stills images for breaker identification. Station 16447#B, 07:30-9:14 (GMT), 15/10/2008 |
Instrumented wave measurements | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station 16457#B, 08:50-18:10 (GMT), 19/10/2008 recovered at 27 55.5N, 14 05.3 W |
Instrumented wave measurements | Description: Equipment trials of wave height measuring (15Hz) spar buoy with video and stills images for breaker identification. Station16463#B, 14:15 - 17:50 (GMT), 21/10/2008 recovered at 27 59.6N, 14 03.9 W |
Chemical oceanography | |
Nitrate | Description: Equipment trials of Lab on a chip nitrate sensor with CTD as reference. CTD data retained. Station 16466#H 15:12- 17:12 (GMT), 21/10/2008 |
Nitrite | Description: Equipment trials of idronaut CTD with pH sensors. data retained. 9:06- 12:30 (GMT), 21/10/2008 |
Nitrite | Description: Equipment trials of Lab on a chip nitrite sensor with CTD as reference. CTD data retained. Sensor failed at depth. Station 16466#H 15:12- 17:12 (GMT), 21/10/2008 |
Geology and geophysics | |
Grab | Description: Equipment trials of the HyBIS video grab system. Station 16460#A, 07:55-11:35 (GMT), 20/10/2008 |
Grab | Description: Equipment trials of the HyBIS video grab system. Station 16455#A, 12:00-19:51 (GMT), 18/10/2008 |
Grab | Quantity: number of samples = 1 Description: Sampled with HyBIS at Station 16446#A, 10:33-14:55 (GMT), 14/10/2008 |
Bottom photography | Description: Equipment trials of the HyBIS video grab system. Station 16460#A, 07:55-11:35 (GMT), 20/10/2008 |
Bottom photography | Description: Equipment trials of the HyBIS video grab system. Station 16455#A, 12:00-19:51 (GMT), 18/10/2008 |