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 2299/032003-12-10 → 2003-12-16
    Underwater operations in progress until further notice by M/V sonne vicinity 35-42N 007-10W
  2. HYDROLANT 2282/032003-12-07 → 2003-12-10
    Underwater operations in progress until further notice by M/V sonne vicinity 35-30N 009-30W
  3. HYDROLANT 2262/032003-12-04 → 2003-12-08
    Underwater operations in progress until 07 dec by M/V sonne along trackline between 36-04N 007-22W and…
  4. HYDROLANT 2244/032003-12-01 → 2003-12-04
    Underwater operations in progress until 03 dec by M/V sonne along trackline between 36-36N 007-46W and…
  5. HYDROLANT 2229/032003-11-28 → 2003-12-01
    Underwater operations in progress until further notice by M/V sonne vicinity 36-53N 010-05W
  6. HYDROLANT 1935/032003-10-15 → 2003-11-04
    Survey operations in progress until 03 nov by M/V hesperides in area bound by 44-05N 008-50W, 44-05N…
  7. NAVAREA IV 404/032003-10-01 → 2003-10-16
    Underwater operations 03 thru 15 oct by M/V hermano gines in area bound by 04-45N 050-56W, 06-48N 050-56W,…
  8. HYDROLANT 1527/032003-08-11 → 2003-08-13
    Hydrographic survey in progress until 12 aug by M/V l'atalante in area bound by 43-20N 009-30W, 43-20N…
  9. NAVAREA IV 316/032003-08-01 → 2003-08-19
    Underwater operations 031600Z to 190400Z aug within three miles of 29-00N 078-00W
  10. HYDROLANT 1344/032003-07-12 → 2003-07-15
    Oceanographic operations 130230Z to 152100Z jul by M/V le suroit towing 200 meter long cable along trackline…
  11. HYDROLANT 1237/032003-06-26 → 2003-06-29
    Underwater operations by M/V marion dufresne: a. 27 jun vicinity of trackline between 46-50N 009-31W and…
  12. HYDROLANT 1225/032003-06-24 → 2003-06-26
    Underwater operations by M/V marion dufresne: a. 25 jun vicinity of trackline between 46-48N 007-01W and…
  13. HYDROLANT 1133/032003-06-10 → 2003-06-17
    Underwater operations by M/V meteor with submersible: a. 11 jun in 29-15.0N 015-30.0W
  14. HYDROLANT 1011/032003-05-23 → 2003-06-09
    Oceanographic operations 25 may thru 08 jun by M/V meteor with submersible in areas: a. bound by 25-00N…
  15. HYDROLANT 1008/032003-05-23 → 2003-06-09
    Oceanographic operations 24 may thru 08 jun by M/V hesperides along trackline joining 26-00N 016-54W, 26-00N…
  16. HYDROLANT 1007/032003-05-23 → 2003-06-09
    Underwater operations 25 may thru 08 jun by M/V nadir with submersible in 42-15N 012-08W
  17. HYDROLANT 885/032003-05-02 → 2003-05-13
    Survey operations in progress until 12 may by M/V meteor in area bound by 31-00N 012-00W, 28-00N 013-30W,…
  18. NAVAREA IV 167/032003-04-24 → 2003-06-04
    Oceanographic operations 27 apr thru 03 jun by M/V l'atalante towing 600 meter long cable in areas bound by:…
  19. HYDROLANT 408/032003-02-21 → 2003-03-08
    Underwater operations in progress until further notice by M/V polar prince with submersible vicinity…
  20. NAVAREA IV 19/032003-01-17 → 2003-01-22
    Survey operations in progress until 21 jan by M/V coastal.com in area between 10-02.3N 060-37.1W and…
  21. HYDROLANT 2629/022002-11-28 → 2002-12-09
    Underwater operations 01 thru 08 dec by M/V l'atalante with submersible vicinity 42-15N 012-08W
  22. HYDROLANT 2395/022002-10-29 → 2002-10-31
    Oceanographic operations 300400Z to 310400Z oct by M/V polarstern within three miles of 43-10N 011-20W
  23. HYDROLANT 2100/022002-09-19 → 2002-10-01
    Oceanographic operations 200001Z sep to 011600Z oct by M/V hesperides along trackline joining 26-00N…
  24. HYDROLANT 2071/022002-09-15 → 2002-09-22
    Underwater operations in progress until further notice by M/V seaspan in 42-06.8N 009-29.2W
  25. HYDROLANT 2047/022002-09-13 → 2002-09-15
    Underwater operations in progress until further notice by M/V seaspan in 36-10.2N 006-49.8W
  26. HYDROLANT 2026/022002-09-11 → 2002-09-21
    Underwater operations in progress until 20 sep by M/V hesperides along trackline joining 27-29N 014-18W,…
  27. HYDROLANT 1658/022002-07-27 → 2002-08-15
    Underwater operations 29 jul thru 14 aug by M/V atalante vicinity of trackline joining 37-50.0N 031-30.0W,…
  28. HYDROLANT 1348/022002-06-17 → 2002-06-21
    Survey operations 21 jun thru 20 jul by M/V wave sentinel towing equipment in area bound by 59-00N 007-00W,…
  29. NAVAREA IV 215/022002-06-11 → 2002-09-01
    Survey operations in progress until 31 aug by M/V polo pony towing equipment in area bound by 31-50N…
  30. HYDROLANT 1159/022002-05-24 → 2002-12-21
    Underwater operations in progress until further notice by M/V northern access in area bound by 23-40N…
  31. HYDROLANT 1118/022002-05-16 → 2002-06-17
    Underwater survey operations 18 may thru 16 jun by M/V wave sentinel with submersible in area bound by…
  32. HYDROLANT 886/022002-04-16 → 2002-04-18
    Survey operations in progress until further notice by M/V kommandor subsea 2000 vicinity 35-49.8N 005-58.5W
  33. HYDROLANT 875/022002-04-15 → 2002-04-16
    Survey operations in progress until further notice by M/V kommandor subsea 2000 vicinity 35-51.0N 005-57.8W
  34. HYDROLANT 868/022002-04-14 → 2002-04-15
    Survey operations in progress until further notice by M/V kommandor subsea 2000 vicinity 35-48.8N 005-58.7W
  35. HYDROLANT 838/022002-04-11 → 2002-04-12
    Survey operations in progress until further notice by M/V kommander subsea 2000 vicinity 35-49.4N 005-57.9W
  36. HYDROLANT 798/022002-04-08 → 2002-04-10
    Survey operations in progress until further notice by M/V kommander subsea 2000 vicinity 35-50N 005-58W
  37. HYDROLANT 796/022002-04-08 → 2002-04-08
    Survey operations in progress until further notice by M/V kommander subsea 2000 vicinity 35-50N 005-58W
  38. HYDROLANT 782/022002-04-05 → 2002-04-06
    Survey operations in progress until further notice by M/V kommander subsea vicinity 35-52.0N 005-56.5W
  39. HYDROLANT 769/022002-04-04 → 2002-04-05
    Survey operations in progress until further notice by M/V kommander subsea vicinity 35-52.4N 005-56.4W
  40. HYDROLANT 743/022002-04-01 → 2002-04-02
    Survey operations in progress until further notice by M/V kommandor subsea vicinity 35-48.1N 005-58.4W
  41. HYDROLANT 729/022002-03-29 → 2002-04-01
    Survey operations in progress until further notice by M/V kommandor subsea vicinity 35-48.5N 005-58.5W
  42. HYDROLANT 717/022002-03-28 → 2002-03-29
    Survey operations in progress until further notice by M/V kommandor subsea vicinity 35-48.1N 005-58.4W
  43. HYDROLANT 644/022002-03-20 → 2002-03-21
    Underwater operations in progress until further notice by M/V dock express 20 vicinity of trackline between…
  44. HYDROLANT 536/022002-03-08 → 2002-03-27
    Oceanographic operations in progress until 26 mar by M/V poseidon vicinity trackline joining 27-36N 025-00W,…
  45. HYDROLANT 462/022002-02-26 → 2002-03-06
    Oceanographic operations 01 thru 05 mar by M/V poseidon along trackline joining 29-10N 022-00W, 29-10N…
  46. HYDROLANT 338/022002-02-09 → 2002-02-26
    Oceanographic operations 11 thru 26 feb by M/V poseidon: a. in area between 37-00N 31-00N and 035-00W 022-00W
  47. NAVAREA IV 46/022002-02-05 → 2002-02-25
    Survey operations in progress by vessel towing equipment: a. 05 thru 14 feb in area between 23-30N 24-30N…
  48. NAVAREA IV 8/022002-01-07 → 2002-01-26
    Survey operations in progress until 262100Z jan by M/V l'atalante in: a. 13-00N 056-50W
  49. HYDROLANT 2522/012001-09-21 → 2001-09-22
    Underwater operations 220200Z to 221400Z sep by M/V marion dufresne within five miles of 46-05N 007-00W
  50. HYDROLANT 2483/012001-09-17 → 2001-09-20
    Survey operations 171800Z to 201200Z sep by M/V hesperides towing 6000 meter long cable vicinity of…

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 20 · seahazards