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

  1. NAVAREA IV 708/26in force2026-07-21
    Survey operations by vessel FUGRO DISCOVERY in North Atlantic off Virginia from July 23 to August 26, wide berth requested.
    North Atlantic · Virginia
  2. NAVAREA IV 705/26in force2026-07-20
    Survey operations are underway until 31 December near Guyana by vessel AHT DN87 and tug TELESTO; wide berth requested.
    North Atlantic · Guyana
  3. NAVAREA IV 621/26in force2026-06-24
    Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.
    North Atlantic · Guyana
  4. NAVAREA IV 616/26in force2026-06-23
    Survey operations by vessel Moonrise G continue in Guyana waters until November 15; wide berth requested.
    North Atlantic · Guyana
  5. NAVAREA IV 615/26in force2026-06-23
    Survey operations by vessel BGP Prospector continue in the North Atlantic near Guyana until November 15, with wide berth requested.
    North Atlantic · Guyana
  6. NAVAREA IV 586/26in force2026-06-15
    Underwater operations by vessel Normand Navigator continue until 31 Dec near Guyana, wide berth requested.
    North Atlantic · Guyana
  7. NAVAREA IV 552/26in force2026-06-09
    Survey operations are underway until 16 November by vessel SeaQuest in an area near 58°W 07°N, wide berth requested.
  8. NAVAREA IV 551/26in force2026-06-09
    Survey 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.
  9. NAVAREA IV 538/26in force2026-06-05
    Underwater 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
  10. NAVAREA IV 539/26in force2026-06-05
    Underwater 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
  11. NAVAREA IV 496/26in force2026-05-26
    Underwater operations by vessel Normand Navigator continue near Suriname from June 1 to August 31, requesting one mile berth.
    North Atlantic · Suriname
  12. NAVAREA IV 98/26in force2026-02-03
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  13. NAVAREA IV 1431/25in force2025-12-31
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  14. NAVAREA IV 1430/25in force2025-12-31
    Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.
    North Atlantic
  15. NAVAREA IV 12/24in force2024-01-03
    Underwater 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

  1. NAVAREA IV 12/24in force2024-01-03 · 962 d
    Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.
    Western North Atlantic
  2. NAVAREA IV 1430/25in force2025-12-31 · 234 d
    Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.
    North Atlantic
  3. NAVAREA IV 1431/25in force2025-12-31 · 234 d
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  4. NAVAREA IV 98/26in force2026-02-03 · 200 d
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  5. NAVAREA IV 496/26in force2026-05-26 · 88 d
    Underwater operations by vessel Normand Navigator continue near Suriname from June 1 to August 31, requesting one mile berth.
    North Atlantic · Suriname

By year

97
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the North Atlantic Ocean

Archive · 1,057 cancelled

  1. HYDROLANT 2007/182018-06-21 → 2018-06-22
    Survey operations in progress until further notice by M/V thalassa along trackline between 42-53N 015-51W…
    Eastern North Atlantic
  2. HYDROLANT 1986/182018-06-20 → 2018-06-21
    Survey operations in progress until further notice by M/V thalassa along trackline between 41-59N 014-41W…
    Eastern North Atlantic
  3. HYDROLANT 1979/182018-06-19 → 2018-06-20
    Survey operations until further notice by M/V thalassa along trackline between 40-41N 012-54W and 43-08N…
    Eastern North Atlantic
  4. HYDROLANT 1972/182018-06-19 → 2018-06-19
    Survey operations in progress until further notice by M/V thalassa along trackline between 40-20N 009-30W…
    Eastern North Atlantic · Portugal
  5. HYDROLANT 1940/182018-06-16 → 2018-06-19
    Survey operations in progress until 190001Z jun by M/V thalassa along trackline between 40-20N 009-30W and…
    Eastern North Atlantic · Portugal
  6. HYDROLANT 1803/182018-06-07 → 2018-06-30
    Survey operations in progress until 300600Z jun by M/V oceanic vega in area bound by 14-45N 018-30W, 14-45N…
    Eastern North Atlantic · Senegal
  7. HYDROLANT 1655/182018-05-25 → 2018-06-24
    Survey operations from 26 may thru 23 jun by sarmiento de gamboa in area bound by 20-02N 021-02W, 25-00N…
    Eastern North Atlantic
  8. NAVAREA IV 416/182018-05-24 → 2018-06-02
    Survey operations 28 may thru 01 jun by M/V marwina in areas bound by: a. 06-15.64N 054-52.96W, 06-15.65N…
    Western North Atlantic · Suriname
  9. NAVAREA IV 377/182018-05-11 → 2018-05-24
    Survey operations in progress until 23 may by M/V hos deepwater in areas: a. 11-29.79N 060-44.64W
    Eastern Caribbean Sea · Western North Atlantic · Tobago · Trinidad
  10. NAVAREA IV 347/182018-04-30 → 2018-05-26
    Survey operations in progress until 25 may by M/V endeavor in area bound by 08-32.8N 060-00.1W, 08-55.5N…
    Western North Atlantic · Guyana
  11. NAVAREA IV 327/182018-04-20 → 2018-04-26
    Survey operations in progress until 25 apr by M/V delta cardinal in: a. 10-42.89N 060-35.07W
    Western North Atlantic · Trinidad
  12. NAVAREA IV 307/182018-04-16 → 2018-06-17
    Survey operations in progress until 17 jun by S/V sanco star, M/V geowave commander, M/V ocean pearl and M/V…
    Western North Atlantic · Trinidad
  13. NAVAREA IV 294/182018-04-11 → 2018-05-10
    Survey operations in progress until 09 may by M/V sea strength in areas bound by: a. 10-05.87N 060-07.89W,…
    Western North Atlantic · Trinidad
  14. NAVAREA IV 284/182018-04-06 → 2018-04-15
    Survey operations in progress until 14 apr by M/V hos deepwater in 10-13.5N 060-37.0W
    Western North Atlantic · Trnidad
  15. NAVAREA IV 247/182018-03-23 → 2019-03-08
    Underwater operations 30 mar until further notice by M/V noble bob douglas in areas: a. bound by 08-37.80N…
    Western North Atlantic · Guyana
  16. NAVAREA IV 246/182018-03-23 → 2018-09-07
    Underwater operations 30 mar until further notice by M/V liam j mcall in area bound by 08-37.80N 057-45.97W,…
    Western North Atlantic · Guyana
  17. NAVAREA IV 234/182018-03-20 → 2018-04-12
    Underwater operations 21 mar thru 11 apr by M/V island pride in 10-17.1N 060-18.2W
    Western North Atlantic · Trinidad
  18. NAVAREA IV 169/182018-02-27 → 2018-06-01
    Survey operations in progress until 31 may by M/V subsea viking, M/V sanco spirit, M/V vantage, M/V delta…
    Western North Atlantic · Trinidad
  19. HYDROLANT 554/182018-02-15 → 2018-04-01
    Survey operations 16 feb thru 31 mar by M/V akademik primakov towing 12 four mile long cables in area bound…
    Eastern North Atlantic · Western Sahara
  20. HYDROLANT 380/182018-02-02 → 2018-07-07
    Survey operations in progress until 31 jul by M/V bgp prospector towing 12 four mile long cables in area…
    Eastern North Atlantic · Western Sahara
  21. HYDROLANT 370/182018-02-01 → 2018-06-03
    Survey operations 030600Z feb to 300600Z jun by M/V oceanic vega in area bound by 14-45N 018-30W, 14-45N…
    Eastern North Atlantic · Senegal
  22. NAVAREA IV 97/182018-01-29 → 2018-03-01
    Survey operations 31 jan thru 28 feb by M/V delta monarch in: a. 10-38.62N 060-38.90W
    Western North Atlantic · Trinidad
  23. NAVAREA IV 84/182018-01-25 → 2018-01-28
    Survey operations in progress until 27 jan by M/V fugro brasilis in area bound by 10-13.34N 060-37.74W,…
    Western North Atlantic · Trinidad
  24. NAVAREA IV 78/182018-01-24 → 2018-02-08
    Survey operations in progress until 07 feb by M/V ocean vantage in: a. 10-14.26N 060-09.18W
    Western North Atlantic · Eastern Caribbean Sea · Tobago · Trinidad
  25. HYDROLANT 254/182018-01-23 → 2018-01-31
    Underwater operations 27 thru 30 jan by M/V pourquoi pas along trackline between 28-09N 015-25W and 25-14N…
    Eastern North Atlantic · Canary Islands
  26. NAVAREA IV 57/182018-01-18 → 2018-03-21
    Survey operations in progress until 20 mar by M/V polarcus adira in area bound by 08-47.51N 054-57.48W,…
    Western North Atlantic
  27. NAVAREA IV 1170/172017-12-15 → 2018-02-21
    Survey operations 20 dec thru 20 feb 18 by M/V geowave voyager in area bound by 08-30N 054-10W, 07-43N…
    Western North Atlantic
  28. HYDROLANT 3909/172017-12-04 → 2018-07-01
    Survey operations in progress until 302359Z jun 18 by M/V oceanic sirius towing five mile long cables in…
    Eastern North Atlantic · Mauritania
  29. NAVAREA IV 1113/172017-11-28 → 2017-12-20
    Survey operations 30 nov thru 19 dec by M/V sea service: a. in area bound by 10-05.87N 060-07.89W, 10-06.29N…
    Western North Atlantic · Trinidad
  30. NAVAREA IV 1100/172017-11-24 → 2017-12-26
    Survey operations 27 nov thru 25 dec M/V hos warland in vicinity of trackline joining 10-42.97N 060-33.94W,…
    Western North Atlantic · Trinidad
  31. NAVAREA IV 1096/172017-11-21 → 2017-12-25
    Survey operations 24 nov thru 24 dec by M/V sea strength in: a. 10-29.25N 059-02.97W
    Western North Atlantic
  32. NAVAREA IV 1094/172017-11-21 → 2017-12-16
    Survey operations 23 nov thru 15 dec by M/V sea strength in: a. 10-23.35N 058-54.64W
    Western North Atlantic
  33. NAVAREA IV 1083/172017-11-16 → 2020-10-01
    Scientific mooring, at depth 1587 meters established until 30 sep 20 in 08-09.30N 057-07.84W
    Western North Atlantic · Guyana
  34. NAVAREA IV 1082/172017-11-16 → 2018-03-02
    Survey operations in progress until 01 mar 18 by M/V dora and M/V old fort tours in area bound by 06-42.83N…
    Western North Atlantic · Guyana
  35. NAVAREA IV 1081/172017-11-16 → 2018-01-18
    Survey operations 20 nov thru 20 jan 18 by M/V polarcus adira in area bound by 08-47.51N 054-57.48W,…
    Western North Atlantic
  36. NAVAREA IV 1035/172017-11-02 → 2017-12-06
    Survey operations 06 nov thru 05 dec by M/V fugro brasilis in area boundy by: a. 10-05.21N 060-22.02W,…
    Western North Atlantic · Trinidad-southeast Coast
  37. NAVAREA IV 1033/172017-11-01 → 2018-02-21
    Survey operations in progress until 20 feb 18 by M/V geowave commander, M/V ocean pearl, M/V atlantic spirit…
    Western North Atlantic · Trinidad
  38. NAVAREA IV 1032/172017-11-01 → 2017-12-07
    Survey operations until 06 dec by M/V delta skipper: a. in area bound by 10-05.87N 060-07.89W, 10-06.29N…
    Western North Atlantic · Trinidad
  39. NAVAREA IV 1027/172017-10-31 → 2017-11-21
    Straits of florida
    Western North Atlantic · Caribbean Sea
  40. HYDROLANT 3249/172017-10-11 → 2017-11-07
    Survey operations in progress until 062359Z nov by M/V polarcus alima towing 12 6000 meter long cables in…
    Eastern North Atlantic · Mauritania
  41. HYDROLANT 3201/172017-10-08 → 2017-10-09
    Survey operations in progress until 172300Z oct by unmanned five meter M/V autonaut jura towing 25 meter…
    Eastern North Atlantic · Shetland Islands
  42. HYDROLANT 3180/172017-10-06 → 2017-10-08
    Survey operations in progress until 072300Z oct by unmanned five meter vessel towing 25 meter long cable in…
    Eastern North Atlantic · Shetland Islands
  43. NAVAREA IV 919/172017-10-05 → 2017-10-31
    Survey operations in progress until 01 nov by M/V atlantic explorer towing 10800 meter long cable in area…
    North Atlantic · Canada
  44. NAVAREA IV 873/172017-09-29 → 2017-10-03
    Survey operations in progress until 04 oct by M/V atlantic explorer towing 10800 meter long cable in area…
    Western North Atlantic · Canada
  45. NAVAREA IV 853/172017-09-25 → 2017-11-23
    Survey operations in progress until 22 nov by M/V gondola in area bound by 06-15.03N 057-04.38W, 06-15.25N…
    Western North Atlantic · Suriname
  46. NAVAREA IV 846/172017-09-23 → 2017-11-23
    Underwater operations 27 sep thru 22 nov by M/V nor da vinci in: a. 09-55.98N 060-26.51W
    Western North Atlantic · Trinidad
  47. NAVAREA IV 840/172017-09-22 → 2017-09-22
    Survey operations 26 sep thru 31 oct by M/V sea service: a. in area bound by 10-05.87N 060-07.89W, 10-06.29N…
    Western North Atlantic · Trinidad
  48. NAVAREA IV 816/172017-09-17 → 2017-09-29
    Survey operations in progress until 04 oct by M/V atlantic explorer towing 10800 meter long cable in area…
    Western North Atlantic · Canada
  49. NAVAREA IV 766/172017-09-06 → 2017-09-15
    Survey operations 07 sep thru 04 oct by M/V atlantic explorer towing 10500 meter long cable in area bound by…
    Western North Atlantic
  50. NAVAREA IV 758/172017-09-05 → 2017-09-15
    Survey operations in progress until 14 sep by M/V geco eagle towing 14 9000 meter long cables in area bound…
    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.

Survey operations in the North Atlantic Ocean — page 12 · seahazards