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 1767/082008-10-22 → 2008-10-27
    Underwater operations 23 oct until further notice by M/V poseidon: a. along trackline joining 48-00N…
  2. HYDROLANT 1452/082008-09-08 → 2008-09-11
    Underwater operations 082000Z to 102300Z sep by M/V cornide de saaveda along trackline between 44-50.0N…
  3. HYDROLANT 1223/082008-07-24 → 2008-07-26
    Oceanographic operations until 260330Z jul by M/V d. carlos I along trackline joining 44-05N 036-54W, 44-27N…
  4. NAVAREA IV 288/082008-07-24 → 2008-07-26
    Oceanographic operations until 260330Z jul by M/V d. carlos I along trackline joining 44-05N 036-54W, 44-27N…
  5. HYDROLANT 1212/082008-07-22 → 2008-07-24
    Oceanographic operations 221200Z to 251200Z jul by M/V d. carlos I along trackline joining 40-43N 034-08W,…
  6. NAVAREA IV 285/082008-07-22 → 2008-07-24
    Oceanographic operations 221200Z to 251200Z jul by M/V d. carlos I along trackline joining 40-43N 034-08W,…
  7. NAVAREA IV 280/082008-07-19 → 2008-07-20
    Underwater operations in progress until further notice by submersible vicinity of trackline between 38-54.2N…
  8. HYDROLANT 1188/082008-07-17 → 2008-07-27
    Oceanographic operations in progress until 26 jul by M/V roger revelle within three miles of 36-13.9N…
  9. NAVAREA IV 256/082008-07-02 → 2008-08-01
    Survey operations in progress until 31 jul by M/V moana wave: a. in area bound by 10-26.96N 060-27.55W,…
  10. HYDROLANT 852/082008-05-19 → 2008-05-29
    Underwater operations 22 thru 30 may by M/V poseidon along trackline joining 29-15N 015-40W, 31-00N 013-00W,…
  11. NAVAREA IV 175/082008-05-11 → 2008-06-07
    Survey operations in progress until 06 jun by M/V moana wave: a. in area bound by 10-26.96N 060-27.55W,…
  12. HYDROLANT 648/082008-04-16 → 2008-04-30
    Underwater operations 18 to 29 apr by M/V poseidon area bound by 20-00N 017-30W
  13. HYDROLANT 618/082008-04-13 → 2008-04-16
    Underwater operations by M/V poseidon: a. 13 apr in 29-11.7N 015-55.8W
  14. HYDROLANT 595/082008-04-09 → 2008-04-18
    Oceanographic operations 10 thru 17 apr by M/V antea in area bound by 03-30N 050-50W, 04-20N 050-00W, 01-00N…
  15. HYDROLANT 591/082008-04-09 → 2008-04-09
    Oceanographic operations in progress until 10 apr by M/V antea in area bound by 03-30N 050-50W, 04-20N…
  16. HYDROLANT 343/082008-02-22 → 2008-05-13
    Scientific operations in progress until further notice by M/V atalante along trackline between 15-00N…
  17. HYDROLANT 247/082008-02-05 → 2008-02-19
    Scientific operations 05 thru 18 feb by M/V atalante along trackline bewteen 16-10N 020-00W and 20-00N 020-00W
  18. HYDROLANT 218/082008-01-31 → 2008-03-08
    Underwater operations in progress until further notice in area bound by 16-04N 016-32W, 16-04N 017-10W,…
  19. NAVAREA IV 43/082008-01-27 → 2008-02-03
    Survey operations in progress until 030400Z feb by M/V akadamik shatskiy towing six mile long cable in area…
  20. NAVAREA IV 3/082008-01-03 → 2008-01-11
    Survey operations in progress until 10 jan by M/V count turk and M/V expert surveyor towing equipment: a.…
  21. NAVAREA IV 386/072007-12-19 → 2008-01-09
    Oceanographic operations in progress until 10 jan 08 by M/V siem mollie within 29 miles of 07-41.02N…
  22. NAVAREA IV 366/072007-12-04 → 2007-12-06
    Underwater operations in progress until further notice by M/V l'atalante vicinity 14-00N 044-00W
  23. HYDROLANT 2012/072007-12-04 → 2007-12-06
    Underwater operations in progress until further notice by M/V l'atalante vicinity 14-00N 044-00W
  24. HYDROLANT 1907/072007-11-16 → 2007-11-22
    Underwater operations in progress until further notice by M/V discovery within ten miles of 17-45N 022-40W
  25. HYDROLANT 1556/072007-09-07 → 2007-09-14
    Underwater operations in progress until 21 sep by M/V siem danis in 42-11N 012-04W
  26. NAVAREA IV 225/072007-08-07 → 2008-06-21
    Salvage operations 14 aug until further notice by tug esv agt connector in area bound by 07-02N 045-24W,…
  27. HYDROLANT 1377/072007-08-07 → 2008-06-21
    Salvage operations 14 aug until further notice by tug esv agt connector in area bound by 07-02N 045-24W,…
  28. HYDROLANT 1187/072007-07-07 → 2007-07-29
    Underwater operations 09 thru 28 jul by M/V pourquoi pas vicinity: a. 35-59N 029-03W
  29. HYDROLANT 1116/072007-06-27 → 2007-07-15
    Scientific operations in progress until 14 jul by M/V discovery within ten miles of 43-18N 017-48W
  30. HYDROLANT 1089/072007-06-23 → 2007-06-27
    Scientific operations in progress until 14 jul by M/V discovery within six miles of 43-36N 018-00W
  31. HYDROLANT 1003/072007-06-11 → 2007-06-28
    Oceanographic operations in progress until further notice by M/V kommandor jack in vicinity 37-13N 018-37W
  32. HYDROLANT 966/072007-06-06 → 2007-06-11
    Oceanographic operations in progress until further notice by M/V kommandor jack in vicinity 33-09N 028-49W
  33. HYDROLANT 943/072007-06-03 → 2007-06-06
    Survey operations in progress until further notice by M/V kommandor jack vicinity 32-00N 027-49W
  34. HYDROLANT 936/072007-06-01 → 2007-06-03
    Survey operations in progress until further notice by M/V kommandor jack vicinity 30-56N 028-31W
  35. HYDROLANT 783/072007-05-10 → 2007-05-13
    Underwater operations in progress until further notice by M/V discovery towing one mile long equipment…
  36. HYDROLANT 760/072007-05-06 → 2007-05-16
    Underwater operations in progress until further notice by M/V poseidon and M/V discovery towing 1.3 mile…
  37. HYDROLANT 727/072007-05-01 → 2007-05-06
    Underwater operations in progress until further notice by M/V poseidon and M/V discovery towing 1.3 mile…
  38. HYDROLANT 695/072007-04-26 → 2007-05-11
    Underwater operations in progress until 10 may by M/V poseidon in vicinity of 36-30N 009-00W
  39. HYDROLANT 568/072007-04-07 → 2007-04-24
    Underwater operations in progress until 23 apr by M/V poseidon in area bound by 28-00N 020-00W, 30-00N…
  40. HYDROLANT 541/072007-04-04 → 2007-04-06
    Underwater operations 05 thru 23 apr by M/V poseidon in area bound by 28-00N 020-00W, 30-00N 022-00W, 40-00N…
  41. HYDROLANT 271/072007-02-20 → 2007-04-07
    Survey operations 25 feb thru 06 apr by M/V pourquoi pasin: a. 12-58.35N 044-51.75W
  42. NAVAREA IV 46/072007-02-12 → 2007-02-23
    Survey operations in progress until 22 feb by M/V akademik nemchinov in area bound by 11-06-22N 057-56-25W,…
  43. HYDROLANT 208/072007-02-07 → 2007-02-23
    Oceanographic operations 08 thru 26 feb by M/V poseidon along trackline joining 18-00N 023-00W, 18-00N…
  44. HYDROLANT 204/072007-02-06 → 2007-02-07
    Oceanographic operations 08 thru 26 feb by M/V poseidon: a. along trackline between 18-00N 023-00W and…
  45. NAVAREA IV 42/072007-02-05 → 2007-02-12
    Survey operations 08 thru 15 feb by M/V akademik nemchinov along trackline between 11-39-24.4N 058-27-09.0W…
  46. NAVAREA IV 37/072007-01-31 → 2007-02-03
    Survey operations in progress until 031330Z feb by M/V akademik nemchinov in area bound by 13-49-47N…
  47. NAVAREA IV 31/072007-01-22 → 2007-01-27
    Survey operations by M/V akademik nemchinov a. in progress until 230700Z jan in area between 13-24-09N…
  48. HYDROLANT 2168/062006-12-04 → 2006-12-11
    Underwater operations in progress until 082100Z jan 07 within ten miles of trackline joining 33-34N 027-00W,…
  49. NAVAREA IV 240/062006-09-21 → 2007-03-16
    Survey operations in progress until further notice by M/V rem angler/lmml in area bound by 49-00.6N…
  50. HYDROLANT 1614/062006-09-04 → 2006-09-27
    Survey operations in progress until further notice by M/V rem angler/lmml in area bound by 49-00.6N…

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 18 · seahazards