Survey operations in the North Atlantic Ocean
Hydrographic and scientific survey vessels, often towing long arrays.
- in force
- 15
- last 12 months
- 16
- vs previous 12 (3)
- +433%
- since 1997
- 1,072
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 · 15
- NAVAREA IV 708/26in force2026-07-21Survey operations by vessel FUGRO DISCOVERY in North Atlantic off Virginia from July 23 to August 26, wide berth requested.North Atlantic · Virginia
- NAVAREA IV 705/26in force2026-07-20Survey operations are underway until 31 December near Guyana by vessel AHT DN87 and tug TELESTO; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 621/26in force2026-06-24Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 616/26in force2026-06-23Survey operations by vessel Moonrise G continue in Guyana waters until November 15; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 615/26in force2026-06-23Survey operations by vessel BGP Prospector continue in the North Atlantic near Guyana until November 15, with wide berth requested.North Atlantic · Guyana
- NAVAREA IV 586/26in force2026-06-15Underwater operations by vessel Normand Navigator continue until 31 Dec near Guyana, wide berth requested.North Atlantic · Guyana
- NAVAREA IV 552/26in force2026-06-09Survey operations are underway until 16 November by vessel SeaQuest in an area near 58°W 07°N, wide berth requested.
- NAVAREA IV 551/26in force2026-06-09Survey operations by vessel Sea Horse II are in progress until 16 November in an area near 07-57N 058-27W to 07-11N 057-33W, wide berth requested.
- NAVAREA IV 538/26in force2026-06-05Underwater operations by vessel Handin Tide continue until 25 August in the North Atlantic off Guyana, near 08-00N 057-00W; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 539/26in force2026-06-05Underwater operations by vessel C-Worker 1 until 31 Dec in area from 07-54.85N 057-06.47W to 08-04.55N 056-50.16W, Guyana. Wide berth requested.North Atlantic · Guyana
- NAVAREA IV 496/26in force2026-05-26Underwater operations by vessel Normand Navigator continue near Suriname from June 1 to August 31, requesting one mile berth.North Atlantic · Suriname
- NAVAREA IV 98/26in force2026-02-03Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 1431/25in force2025-12-31Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 1430/25in force2025-12-31Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.North Atlantic
- NAVAREA IV 12/24in force2024-01-03Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.Western North Atlantic
Longest in force
- NAVAREA IV 12/24in force2024-01-03 · 961 dUnderwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.Western North Atlantic
- NAVAREA IV 1430/25in force2025-12-31 · 234 dUnderwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.North Atlantic
- NAVAREA IV 1431/25in force2025-12-31 · 234 dSurvey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 98/26in force2026-02-03 · 200 dSurvey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 496/26in force2026-05-26 · 88 dUnderwater operations by vessel Normand Navigator continue near Suriname from June 1 to August 31, requesting one mile berth.North Atlantic · Suriname
By month (all years)
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Other hazards in the North Atlantic Ocean
Archive · 1,057 cancelled
- HYDROLANT 1964/192019-06-29 → 2019-07-02Underwater operations in progress until 01 jul by M/V sarmiento de gamboa in area bound by 39-28N 029-42W,…North Atlantic · Azores
- HYDROLANT 1946/192019-06-28 → 2019-06-30Underwater operations 28 and 29 jun by M/V sarmiento de gamboa in area bound by 39-28N 029-42W, 39-28N…North Atlantic · Azores
- HYDROLANT 1943/192019-06-27 → 2019-06-28Underwater operations 28 and 29 jun by M/V sarmiento de gamboa in area bound by 39-28N 029-42W, 39-28N…North Atlantic · Azores
- NAVAREA IV 546/192019-06-26 → 2020-01-01Survey operations in progress until 31 dec by M/V skandi neptune in area bound by 08-08.77N 056-57.84W,…Western North Atlantic · Guyana
- NAVAREA IV 545/192019-06-26 → 2019-07-09Survey operation in progress until 31 dec by M/V ramform tethys, M/V delta monarch, M/V thor magni M/V miss…Western North Atlantic
- NAVAREA IV 541/192019-06-25 → 2019-09-28Survey operations in progress until 27 sep 19 by M/V cvs normand installer in area bound by 08-00.64N…Western North Atlantic · Guyana
- HYDROLANT 1895/192019-06-25 → 2019-06-26Underwater operations in progress until further notice by M/V sarmiento de gamboa in 43-48N 028-30WNorth Atlantic
- HYDROLANT 1884/192019-06-24 → 2019-06-25Underwater operations in progress until 252359Z jun by M/V sarmiento de gamboa in area bound by 45-46N…North Atlantic
- HYDROLANT 1875/192019-06-22 → 2019-06-24Underwater operations 230001Z to 240001 jun by M/V sarmeinto de gamboa in area bound by 44-00N 028-00W,…North Atlantic
- NAVAREA IV 531/192019-06-21 → 2020-01-01Survey operations in progress until 31 dec 19 by M/V pacific legend in area bound by 08-08.077N 056-57.841W,…Western North Atlantic · Guyana
- HYDROLANT 1856/192019-06-20 → 2019-06-23Underwater operations 210001Z to 230001Z jun by sarmiento de gamboa in area bound by 46-20N 027-36W, 46-20N…North Atlantic
- HYDROLANT 1828/192019-06-18 → 2019-06-20Underwater operations in progress until 201200Z jun notice by M/V polarstern along trackline joining…Eastern North Atlantic · Canary Islands
- NAVAREA IV 500/192019-06-14 → 2019-09-22Survey operation in progress until 21 sep by M/V harvey eagle in area bound by 08-14.81N 057-25.09W,…Western North Atlantic
- NAVAREA IV 499/192019-06-14 → 2019-07-04Survey operations in progress until 03 jul by M/V delta monarch in area bound by 07-40.10N 057-16.70W,…Western North Atlantic
- NAVAREA IV 498/192019-06-14 → 2019-06-26Survey operation in progress until 31 dec by M/V ramform tethys, M/V delta monarch, M/V miss megan and M/V…Western North Atlantic
- NAVAREA IV 494/192019-06-13 → 2019-07-02Survey operations 14 jun thru 30 jul by M/V harrier explorer and M/V shannon in area bound by 08-30.00N…Western North Atlantic
- HYDROLANT 1764/192019-06-11 → 2019-06-14Underwater operations 12 and 13 jun by M/V sarmeinto de gamboa with submersible in vicinity 42-32N 011-59WEastern North Atlantic
- HYDROLANT 1745/192019-06-08 → 2019-06-11Underwater operations 12 and 13 jun by M/V sarmeinto de gamboa with submersible in vicinity of 42-00N 011-00WEastern North Atlantic · Spain
- NAVAREA IV 484/192019-06-07 → 2019-06-25Underwater operations in progress until 27 sep by M/V cvs normand installer in area bound by 08-00.64N…Western North Atlantic · Guyana
- NAVAREA IV 483/192019-06-07 → 2019-06-27Underwater operations in progress until 31 dec by M/V pacific legend in area bound by 08-08.08N 056-57.84W,…Western North Atlantic · Guyana
- NAVAREA IV 482/192019-06-07 → 2019-06-23Underwater operations 08 thru 22 jun by M/V investigator in: a. 10-14.74N 060-30.83WWestern North Atlantic · Trinidad
- NAVAREA IV 468/192019-06-02 → 2019-06-27Survey operation 07 jun thru 12 aug by M/V harrier explorer in area bound by 09-20.00N 054-20.00W, 09-20.00N…Western North Atlantic
- NAVAREA IV 463/192019-05-31 → 2019-08-04Survey operations in progress until further notice by M/V ramform atlas towing 14 9000 meter long cables in…Western North Atlantic
- HYDROLANT 1669/192019-05-31 → 2019-11-08Survey operations in progress until further notice by M/V fugro scout, M/V oceaneering OI2 and M/V monte da…Eastern North Atlantic · Senegal
- NAVAREA IV 459/192019-05-30 → 2020-10-23Survey operations 31 may until further notice by M/V sanco atlantic towing 10050 meter long cable in area…Western North Atlantic · Canada
- NAVAREA IV 441/192019-05-21 → 2019-06-17Survey operations in progress until 17 jun by M/V delta monarch in area bound by 07-40.10N 057-16.70W,…Western North Atlantic · Guyana
- NAVAREA IV 439/192019-05-21 → 2019-06-11Underwater operations 22 may to 10 jun by M/V havila harmony with submersible in: a. 10-04.69N 060-11.69WWestern North Atlantic · Trinidad
- NAVAREA IV 428/192019-05-17 → 2019-06-17Underwater operations by M/V rebecca: a. 220800Z to 311200Z may along trackline joining 44-13.0N 044-49.3W,…North Atlantic
- HYDROLANT 1505/192019-05-17 → 2019-05-22Survey operations in progress until further notice by M/V kronprins haakon along trackline joining 36-30N…Eastern North Atlantic
- NAVAREA IV 425/192019-05-16 → 2019-06-27Survey operations in progress until 31 dec by M/V ramform tethys, M/V thor magni, M/V delta monarch, M/V…Western North Atlantic · Guyana
- NAVAREA IV 418/192019-05-14 → 2019-08-02Underwater operations in progress until 15 aug by M/V sable in area bound by 08-16.36N 057-02.54W, 08-16.36N…Western North Atlantic · Guyana
- NAVAREA IV 416/192019-05-14 → 2019-06-03Survey operations 15 may thru 02 jun by M/V harrier explorer in area bound by 07-49.33N 052-57.71W,…Western North Atlantic · Suriname
- NAVAREA IV 414/192019-05-13 → 2019-05-26Underwater operations 14 thru 25 may by M/V norabel and M/V intrnational contender in: a. 10-08.42N 060-47.36WWestern North Atlantic · Trinidad
- HYDROLANT 1446/192019-05-11 → 2019-05-17Survey operations in progress until further notice by M/V kronprins haakon along trackline joining 31-37N…Eastern North Atlantic · Morocco
- NAVAREA IV 401/192019-05-09 → 2019-05-10Underwater operations in progress until 10 jun by M/V captain grady in area bound by 08-15.33N 057-02.52W,…Western North Atlantic · Guyana
- NAVAREA IV 400/192019-05-09 → 2019-05-25Survey operations 10 thru 24 may by M/V eland and M/V c-installer in area bound by: 08-16.57N 057-02.98W,…Western North Atlantic · Guyana
- HYDROLANT 1413/192019-05-08 → 2019-05-11Survey operations in progress until further notice by M/V kronprins haakon along trackline joining 29-06N…Eastern North Atlantic · Canary Islands To Morocco
- NAVAREA IV 393/192019-05-07 → 2019-06-07Underwater operations in progress until 27 sep by M/V cvs normand installer in area bound by 08-00.641N…Western North Atlantic · Guyana
- NAVAREA IV 385/192019-05-03 → 2019-06-27Survey operations in progress until further notice by M/V sable in areas bound by: a. 07-52.28N 057-08.91W,…Western North Atlantic · Guyana
- NAVAREA IV 381/192019-05-02 → 2019-06-01Survey operations in progress until 31 may by M/V investigator in area bound by 07-07.60N 056-33.90W,…Western North Atlantic · Guyana
- NAVAREA IV 367/192019-04-29 → 2019-06-02Survey operations in progress until 01 jun by M/V mt sovereign and M/V db JMC3330 in area bound by 08-08.08N…Western North Atlantic
- HYDROLANT 1302/192019-04-27 → 2019-05-08Survey operations 01 may until further notice by M/V kronprins haakon along trackline joining 17-00N…Eastern North Atlantic · Canary Islands
- NAVAREA IV 355/192019-04-26 → 2019-05-06Survey operations 27 apr thru 05 may by M/V sea service in area bound by 07-53.50N 056-58.60W, 07-51.56N…Western North Atlantic
- NAVAREA IV 354/192019-04-26 → 2019-05-16Survey operations in progress until 30 jun by M/V ramform tethys, M/V thor magni, M/V delta monarch and M/V…Western North Atlantic · Guyana
- NAVAREA IV 328/192019-04-18 → 2019-06-15Survey operations in progress until 14 jun by M/V proteus in area bound by: 09-01.67N 057-54.75W, 09-04.47N…Western North Atlantic · Guyana
- HYDROLANT 1221/192019-04-18 → 2019-04-26Underwater operations 22 thru 25 apr by M/V thalassa in: a. 47-27.0N 008-32.0WEastern North Atlantic · Celtic Sea
- NAVAREA IV 322/192019-04-16 → 2019-04-18Survey operations in progress until 14 jun by M/V proteus in area bound by: 09-01.67N 057-54.75W, 09-04.47N…Western North Atlantic · Guyana
- HYDROLANT 1174/192019-04-15 → 2019-05-18Survey operations 16 apr thru 17 may by M/V tenente castelo in area bound by 01-07.00N 049-32.00W, 00-54.00N…Western North Atlantic · Brazil-north Coast
- NAVAREA IV 296/192019-04-09 → 2019-04-21Survey operations 13 thru 20 apr by M/V miss megan in area bound by 07-16.22N 055-50.00W, 07-25.24N…Western North Atlantic · Suriname
- NAVAREA IV 288/192019-04-08 → 2019-04-26Survey operations in progress until 30 jun by M/V ramform tethys, M/V thor magni and M/V delta monarch in…Western North Atlantic · Guyana
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.