Survey operations in the North Sea
Hydrographic and scientific survey vessels, often towing long arrays.
- in force
- 1
- last 12 months
- 3
- vs previous 12 (0)
- —
- since 1997
- 583
Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.
In force now · 1
Longest in force
By month (all years)
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F
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A
M
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Other hazards in the North Sea
Archive · 582 cancelled
- HYDROLANT 1583/262026-08-15 → 2026-08-19Survey operations by M/V Amazon Conqueror towing eight one-mile-long cables in North Sea off Norway until further notice. Two-mile berth requested.North Sea · Norway
- HYDROLANT 1477/262026-07-31 → 2026-08-15Survey operations are in progress in the North Sea off Norway, with vessel Amazon Conqueror towing eight 1609-meter cables; two-mile berth requested.North Sea · Norway
- HYDROLANT 858/242024-04-22 → 2024-05-26Survey operations in progress until 25 may by M/V ramform tethys towing 12 8000 meter long cables in area…North Sea
- HYDROLANT 2187/232023-09-27 → 2023-10-08Survey operations in progress until further notice by M/V ramform atlas towing 14 6000 meter long cables in…North Sea · Norway
- HYDROLANT 2087/232023-09-17 → 2023-11-08Survey operations in progress until further notice by M/V kommandor towing 1300 meter long cables in area…North Sea
- HYDROLANT 1984/232023-09-04 → 2023-09-27Survey operations in progress until further notice by M/V ramform atlas towing 14 6000 meter long cables in…North Sea · Norway
- HYDROLANT 1841/232023-08-18 → 2023-09-05Survey operations in progress until further notice by M/V amazon conqueror towing 6500 meter long cables in…North Sea · Norway
- HYDROLANT 1820/232023-08-16 → 2023-09-08Survey operations in progress until further notice by M/V pxgeo 2 towing ten 4500 meter long cables in area…North Sea
- HYDROLANT 1616/232023-07-18 → 2023-08-18Survey operations in progress until further notice by M/V amazon conqueror towing 6500 meter long cables in…North Sea · Norway
- HYDROLANT 1615/232023-07-18 → 2023-07-18Survey operations in progress until further notice by M/V amazon conqueror towing 6500 meter long cables in…North Sea · Norway
- HYDROLANT 1277/232023-06-09 → 2023-06-18Survey operations in progress until further notice by M/V ramform victory in area bound by 60-22.10N…North Sea · Norway
- HYDROLANT 1229/232023-06-02 → 2023-07-07Survey operations in progress until further notice by M/V ramform vanguard towing 12 6000 meter long cables…North Sea
- HYDROLANT 716/232023-04-03 → 2023-05-18Survey operations in progress until further notice by M/V amazon conqueror towing eight 4700 meter long…North Sea
- HYDROLANT 2730/222022-10-27 → 2022-11-11Survey operations in progress until further notice by M/V kommandor towing 1200 meter long cable in area…North Sea
- HYDROLANT 2690/222022-10-22 → 2022-10-23Survey operations in progress until further notice by M/V fugro venturer towing 1300 meter long cable in…North Sea
- HYDROLANT 2655/222022-10-19 → 2022-10-21Survey operations in progress until further notice by M/V fugro venturer towing 1300 meter long cable in…North Sea
- HYDROLANT 2210/222022-09-04 → 2022-10-07Survey operations in progress until further notice by M/V sw bly towing 12 5000 meter long cables in area…North Sea · Scotland
- HYDROLANT 2182/222022-09-02 → 2022-09-28Survey operations in progress until further notice by M/V amazon conqueror towing 14 8700 meter long cables…North Sea · Norway
- HYDROLANT 2132/222022-08-29 → 2022-09-02Survey operations in progress until further notice by M/V amazon conqueror towing 14 8700 meter long cables…Eastern North Atlantic · North Sea · Norwegian Sea · Shetland Islands
- HYDROLANT 2125/222022-08-28 → 2022-09-04Survey operations in progress until further notice by M/V sw bly towing 12 5000 meter long cables in area…North Sea · Scotland
- HYDROLANT 2118/222022-08-27 → 2022-08-28Survey operations in progress until further notice by M/V sw bly towing 12 5000 meter long cables in area…North Sea · Scotland
- HYDROLANT 1997/222022-08-12 → 2022-09-04Survey operations 14 aug until further notice by M/V ramform vanguard towing 14 5025 meter long cables in…North Sea · Norway
- HYDROLANT 1996/222022-08-12 → 2022-08-12Survey operations 14 aug until further notice by M/V ramform vanguard towing 14 5025 meter long cables in…North Sea · Norway
- HYDROLANT 1994/222022-08-11 → 2022-09-03Survey operations in progress until further notice by M/V sanco atlantic towing 12 150 meter long cables in…North Sea
- HYDROLANT 1987/222022-08-10 → 2022-08-25Survey operations in progress until further notice by M/V amazon warrior towing 8 3100 meter long cables in…North Sea · Shetland Islands
- HYDROLANT 1956/222022-08-06 → 2022-10-05Survey operations in progress until further notice by M/V ramform atlas towing 15 5000 meter long cables in…North Sea
- HYDROLANT 1797/222022-07-18 → 2022-07-28Underwater operations in progress until further notice by M/V uilenspiegel and c/s responder in vicinity of…North Sea · England
- HYDROLANT 1778/222022-07-16 → 2022-07-20Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 51-22.80N…English Channel
- HYDROLANT 1734/222022-07-09 → 2022-07-18Underwater operations in progress until further notice by M/V uilenspiegel in vicinity of trackline joining…North Sea · England
- HYDROLANT 1622/222022-06-25 → 2022-08-06Survey operations in progress until further notice by M/V sanco star and M/V olympic taurus in area bound by…North Sea
- HYDROLANT 1610/222022-06-24 → 2022-06-25Survey operations 25 jun thru 05 aug by M/V sanco star and M/V olympic taurus in area bound by 57-20.65N…North Sea
- HYDROLANT 1558/222022-06-18 → 2022-06-19Underwater operations in progress until further notice by M/V ile de molene in vicinity 56-43.00N 005-59.00ENorth Sea · Norway
- HYDROLANT 1533/222022-06-15 → 2022-07-03Survey operations in progress until further notice by M/V ramform hyperion towing 12 4000 meter long cables…North Sea · Norway
- HYDROLANT 1474/222022-06-07 → 2022-09-20Survey operations in progress until further notice by M/V sw vespucci, M/V sw cook and M/V sw tasman in area…North Sea · Norway
- HYDROLANT 1272/222022-05-12 → 2022-05-20Survey operations in progress until further notice by M/V amazon conqueror towing 7400 meter long cables in…North Sea · Shetland Islands
- HYDROLANT 1264/222022-05-11 → 2022-06-10Underwater operations in progress until further notice by M/V havila phoenix in vicinity of trackline…North Sea · England
- HYDROLANT 1235/222022-05-07 → 2022-08-10Survey operations in progress until further notice by M/V amazon warrior towing 14 8400 meter long cables in…North Sea · Norwegian Sea · Norway
- HYDROLANT 1233/222022-05-07 → 2022-05-07Survey operations in progress until further notice by M/V amazon warrior and M/V amazon conqueror towing 14…North Sea · Norwegian Sea · Norway
- HYDROLANT 1213/222022-05-04 → 2022-05-17Underwater operations in progress until 162359Z may by M/V artabro in vicinity of trackline joining 51-22.7N…North Sea · Belgium · England
- HYDROLANT 1192/222022-05-01 → 2022-05-02Underwater operations in progress until further notice by M/V havila phoenix in vicinity of trackline…North Sea · England To Netherlands
- HYDROLANT 1141/222022-04-26 → 2022-05-29Survey operations 01 may until further notice by M/V ramform vanguard towing 12 9000 meter long cables in…North Sea · Norway
- HYDROLANT 1071/222022-04-15 → 2022-06-13Survey operations in progress until further notice by M/V ramform hyperion towing nine 3700 meter long…North Sea · England
- HYDROLANT 950/222022-04-03 → 2022-04-12Survey operations in progress until further notice by M/V amazon warrior towing two 8047 meter long cables…North Sea · Norway
- HYDROLANT 822/222022-03-22 → 2022-04-14Survey operations in progress until further notice by M/V stril explorer in vicinity of trackline joining…North Sea · England
- HYDROLANT 659/222022-03-05 → 2022-03-09Survey operations in progress until further notice by M/V northern franklin in vicinity of trackline joining…North Sea · England
- HYDROLANT 635/222022-03-03 → 2022-03-04Survey operations in progress until further notice by M/V egs ventus in area bound by 51-38.6N 001-47.4E,…North Sea · England
- HYDROLANT 601/222022-02-28 → 2022-02-28Survey operations in progress until further notice by M/V northern franklin in vicinity of trackline joining…North Sea · England
- HYDROLANT 539/222022-02-23 → 2022-02-23Survey operations in progress until further notice by M/V northern franklin in vicinity of trackline joining…North Sea · England
- HYDROLANT 269/222022-01-28 → 2022-02-23Survey operations in progress until further notice by M/V northern franklin in vicinity of trackline joining…North Sea · England
- HYDROLANT 137/222022-01-15 → 2022-01-23Survey operations in progress until further notice by M/V northern franklin in vicinity of trackline joining…North Sea · England
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.