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 · 962 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
- NAVAREA IV 733/172017-08-28 → 2017-11-14Survey operations 01 sep 17 to 31 jan 18 by M/V pgs hyperion, M/V thor assister and M/V thor omega in area…Western North Atlantic · Guyana
- NAVAREA IV 730/172017-08-27 → 2017-09-05Survey operations in progress until 20 sep by M/V geco eagle towing 14 9000 meter long cables in area bound…Western North Atlantic · Guyana
- NAVAREA IV 723/172017-08-25 → 2017-08-28Survey operations in progress until 27 aug by M/V geco eagle towing 14 9000 meter long cables in area bound…Western North Atlantic · Guyana
- NAVAREA IV 623/172017-07-26 → 2017-08-25Survey operations in progress until 30 sep by M/V geco eagle towing 14 9000 meter long cables in area bound…Western North Atlantic · Guyana
- HYDROLANT 2276/172017-07-22 → 2017-09-01Underwater operations in progress until further notice by M/V ramon margalef in area bound by 36-11.0N…Eastern North Atlantic · Gulf of Cadiz · Spain
- NAVAREA IV 604/172017-07-19 → 2017-07-26Survey operations in progress until 13 sep by M/V geco eagle, M/V mainport cedar and M/V aquarius g in area…Western North Atlantic · Guyana
- HYDROLANT 2229/172017-07-18 → 2017-11-13Survey operations 21 jul thru 10 dec by M/V dong fang kan tan 1 in area bound by 36-15.6N 006-45.9W,…Eastern North Atlantic · Morocco · Western Sahara
- NAVAREA IV 598/172017-07-17 → 2018-04-02Survey operations in progress until further notice by M/V ramform sterling towing 8100 meter long cables in…Western North Atlantic
- NAVAREA IV 584/172017-07-12 → 2017-07-17Survey operations in progress until further notice by M/V ramform sterling towing 8100 meter long cables in…Western North Atlantic
- NAVAREA IV 572/172017-07-08 → 2017-07-26Survey operations in progress until 25 jul by M/V fugro americas in area bound by 10-28.63N 060-14.11W,…Western North Atlantic · Trinidad
- NAVAREA IV 537/172017-06-25 → 2017-10-01Survey operations in progress until 30 sep by M/V ramform tethys towing 16 9500 meter long cables in are…Western North Atlantic
- NAVAREA IV 536/172017-06-25 → 2017-07-10Survey operations in progress until 11 jul by M/V atlantic explorer towing 10500 meter cable in area bound…Western North Atlantic · Canada
- NAVAREA IV 530/172017-06-23 → 2017-09-02Survey operations 26 jun thru 01 sep during daylight hours by M/V gladys mc call in area bound by 06-15.03N…Western North Atlantic · Suriname
- NAVAREA IV 524/172017-06-22 → 2017-07-16Underwater operations in progress until 15 jul by M/V bourbon pearl in: a. 10-06.08N 060-17.85WWestern North Atlantic · Trinidad
- HYDROLANT 1645/172017-05-26 → 2017-07-07Survey operations in progress until further notice by M/V ramform titan towing 16 3.2 mile long cables in…Eastern North Atlantic · Shetland Islands
- NAVAREA IV 428/172017-05-24 → 2017-06-21Survey operations in progress until 20 jun by M/V sea service in areas bound by: a. 10-00.91N 060-33.11W,…Western North Atlantic · Trinidad
- NAVAREA IV 409/172017-05-18 → 2017-06-13Survey operations 18 may thru 14 jun by M/V atlantic explorer towing 10500 meter long cable in area bound by…Western North Atlantic
- HYDROLANT 1415/172017-05-04 → 2017-07-01Survey operations in progress in until 302359Z jun by M/V society kosmos energie in area bound by 32-16.47N…Eastern North Atlantic · Morocco
- HYDROLANT 1400/172017-05-03 → 2017-05-05Survey operations in progress until further notice by M/V autonaut jura towing 25 meter long cable in area…Eastern North Atlantic · Shetland Islands
- NAVAREA IV 351/172017-04-30 → 2017-07-19Survey operations 03 may thru 31 jul by M/V geco eagle towing 14 9000 meter long cables in area bound by…Western North Atlantic · Guyana
- HYDROLANT 1339/172017-04-28 → 2017-05-03Survey operations in progress until further notice by M/V autonaut jura towing 25 meter long cable along…Eastern North Atlantic · Shetland Islands
- NAVAREA IV 339/172017-04-26 → 2017-05-23Survey operations 01 thru 22 may by M/V fugro americas in area bound by 10-03.43N 060-26.10W, 10-03.70N…Western North Atlantic · Trinidad
- NAVAREA IV 334/172017-04-24 → 2017-04-30Survey operations 30 apr thru 31 aug by M/V geco eagle, M/V mainport cedar and M/V aquarius g in area bound…Western North Atlantic · Guyana
- HYDROLANT 1293/172017-04-23 → 2017-05-19Survey operations in progress until further notice by M/V geo caspian towing 14 8000 meter long cables in…Eastern North Atlantic · Celtic Sea
- HYDROLANT 1275/172017-04-21 → 2017-06-26Survey operations in progress until 012359Z jul by M/V bgp prospector towing 12 8000 meter long cables in…Eastern North Atlantic · Morocco
- NAVAREA IV 320/172017-04-19 → 2017-05-19Underwater operations 20 apr thru 18 may by M/V atlantic spirit in area bound by: 10-48.60N 058-51.71W,…Western North Atlantic
- NAVAREA IV 312/172017-04-15 → 2017-05-19Underwater operations 20 apr thru 18 may by M/V atlantic spirit in areas bound by: a. 10-33.00N 059-17.52W,…Western North Atlantic · Eastern Caribbean Sea · Tobago
- HYDROLANT 1149/172017-04-09 → 2017-06-30Survey operations 100001Z apr to 092359Z jul by M/V dong fang kan tan in area bound by 12-12N 020-03W,…Eastern North Atlantic · Senegal · Guinea
- HYDROLANT 1072/172017-04-02 → 2017-04-11Survey operations in progress until 10 apr by M/V ramon margalef with submersible in vicinity 27-37.1N…Eastern North Atlantic · Canary Islands
- NAVAREA IV 254/172017-03-27 → 2017-10-01Survey operations 29 mar thru 30 sep by M/V fugro explorer in area bound by 07-39.81N 057-10.09W, 08-16.32N…Western North Atlantic · Guyana
- HYDROLANT 838/172017-03-15 → 2017-03-26Survey operations 160001Z to 252359Z mar by M/V ramform atlas towing 14 10000 meter long cables in area…Eastern North Atlantic · Mauritania
- NAVAREA IV 178/172017-03-03 → 2017-03-11Survey operations 06 thru 10 mar by M/V international contender in area bound by 09-57.19N 060-34.37W,…Western North Atlantic
- HYDROLANT 690/172017-03-02 → 2017-04-02Survey operations in progress until further notice by M/V polarcus asima towing ten five mile long cables in…Eastern North Atlantic · Morocco
- NAVAREA IV 173/172017-03-01 → 2017-03-03Survey operations 06 thru 10 mar by M/V coastal dot com in area bound by 09-57.19N 060-34.37W, 09-57.19N…Western North Atlantic
- HYDROLANT 629/172017-02-24 → 2017-04-12Survey operations 250001Z feb thru 112359Z apr by M/V bgp prospector in area bound by 25-58.67N 016-54.74W,…Eastern North Atlantic · Western Sahara
- HYDROLANT 577/172017-02-20 → 2017-02-22Underwater operations in progess until 212359Z feb by M/V james cook in 38-32N 015-50WEastern North Atlantic
- NAVAREA IV 129/172017-02-17 → 2017-03-17Survey operations in progress until 16 mar by M/V artemis angler, M/V eland, M/V national explorer and M/V…Western North Atlantic · Trinidad
- HYDROLANT 494/172017-02-13 → 2017-03-02Survey operations in progress until further notice by M/V polarcus asima towing five mile long cable in area…Eastern North Atlantic · Morocco
- NAVAREA IV 107/172017-02-10 → 2017-04-01Underwater operations in progress until 31 mar by M/V north sea giant and M/V wellservicer a. along…Western North Atlantic · Trinidad
- HYDROLANT 308/172017-01-29 → 2017-02-23Survey operations 300001Z jan to 012359Z mar by M/V bgp prospector towing 12 6500 meter long cables in area…Eastern North Atlantic · Western Sahara
- HYDROLANT 3122/162016-11-22 → 2017-01-03Underwater operations in progress until further notice by M/V west saturn in 05-32.52N 010-46.32WEastern North Atlantic · Liberia
- NAVAREA IV 975/162016-11-15 → 2016-11-26Oceanographic operations 18 thru 25 nov by M/V fugro explorer in 09-56.94N 060-34.11WWestern North Atlantic · Trinidad
- HYDROLANT 3008/162016-11-13 → 2016-11-16Oceanographic operations in progress until 152359Z nov by M/V corwith cramer vicinity of trackline between…Eastern North Atlantic · Canary Islands
- NAVAREA IV 952/162016-11-05 → 2016-11-15Survey operations 09 nov thru 07 dec by M/V fugro explorer in area bound by 10-00.12N 060-18.31W, 10-00.02N…Western North Atlantic · Trinidad
- HYDROLANT 2922/162016-11-04 → 2016-11-08Underwater operations 060001Z to 080001Z nov by M/V pourquoi pas in 35-04.1N 012-49.2WEastern North Atlantic
- NAVAREA IV 947/162016-11-03 → 2016-12-03Survey operations 04 nov thru 02 dec by M/V delta skipper: a. in area bound by 10-04.21N 060-25.15W,…Western North Atlantic · Trinidad
- NAVAREA IV 935/162016-10-28 → 2016-11-24Oceanographic operations 02 thru 23 nov by M/V max chouest along tracklines between: a. 09-59.53N 060-29.13W…Western North Atlantic · Trinidad
- HYDROLANT 2744/162016-10-19 → 2016-11-04Oceanographic operations in progress until 032359Z nov by M/V ramon margalef along trackline between…Eastern North Atlantic · Gulf of Cadiz
- NAVAREA IV 908/162016-10-18 → 2016-10-27Oceanographic operations 21 thru 26 oct by M/V atlantic spirit in areas bound by: a. 10-49.99N 060-44.08W,…Western North Atlantic · Trinidad
- HYDROLANT 2639/162016-10-09 → 2016-10-13Oceanographic operations 100001Z to 122359Z oct by M/V angeles alvarino vicinity 29-12N 015-36WEastern North Atlantic · Canary Islands
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.