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 1522/062006-08-20 → 2006-08-23
    Oceanographic operations by M/V poseidon: a. in progress until 22 aug in area bound by 43-00N 009-28W,…
  2. HYDROLANT 1509/062006-08-17 → 2006-08-20
    Oceanographic operations 19 thru 22 aug by M/V poseidon in area bound by 43-00N 009-28W, 43-00N 009-25W,…
  3. HYDROLANT 1065/062006-06-03 → 2006-06-05
    Oceanographic operations in progress until further notice by M/V discovery in area abound by 26-11.4N…
  4. HYDROLANT 1031/062006-05-29 → 2006-06-15
    Survey operations 31 may thru 14 jun by M/V hesperides in area bound by 36-25N 009-15W, 35-00N 010-30W,…
  5. HYDROLANT 919/062006-05-14 → 2006-06-03
    Survey operations in progress until further notice by M/V discovery in area bound by 27-19N 015-15W, 27-16N…
  6. HYDROLANT 918/062006-05-13 → 2006-05-14
    Survey operations in progress until further notice by M/V discovery in area bound by 27-51.2N 013-28.2W,…
  7. HYDROLANT 674/062006-04-05 → 2008-02-09
    Scientific moorings established in: a. 23-49.6N 024-05.9W
  8. NAVAREA IV 86/062006-04-04 → 2006-04-22
    Survey operations 03 thru 21 apr by M/V suroit in area bound by 39-26.16N 034-11.76W, 36-01.28N 041-56.85W,…
  9. HYDROLANT 656/062006-04-03 → 2006-04-22
    Survey operations 03 thru 21 apr by M/V suroit in area bound by 39-26.16N 034-11.76W, 36-01.28N 041-56.85W,…
  10. HYDROLANT 540/062006-03-18 → 2006-03-22
    Underwater operations in progress until 21 mar by M/V pourquoi pas in vicinity 47-17N 009-25W
  11. HYDROLANT 530/062006-03-17 → 2006-03-17
    Underwater operations 19 thru 21 mar by M/V pourquoi pas in vicinity 46-38N 010-20W
  12. HYDROLANT 521/062006-03-16 → 2006-03-17
    Underwater operations 172300Z to 212300Z mar by M/V pourquoi pas in area bound by 47-20N 008-40W, 47-40N…
  13. HYDROLANT 181/062006-01-27 → 2006-02-24
    Underwater operations in progress until 23 feb by M/V poseidon towing equipment vicinity 21-35N 028-15W
  14. HYDROLANT 142/062006-01-23 → 2006-01-27
    Survey operations 26 jan thru 21 feb by M/V poseidon along trackline 14-16.0N 017-05.3W and 10-15.0N 025-38.0W
  15. HYDROLANT 80/062006-01-13 → 2006-01-17
    Oceanographic operations 14 to 20 jan by M/V pourquoi pas in area bound by bay of biscay and 45-10N 010-30W
  16. HYDROLANT 23/062006-01-04 → 2006-01-23
    Underwater operations in progress until further notice by M/V ffpv nordnes vicinity 60-50N 001-30W
  17. HYDROLANT 2425/052005-12-30 → 2006-01-02
    Underwater operations in progress until further notice by M/V ffpv nordnes vicinity 60-50N 001-30W
  18. HYDROLANT 2307/052005-12-09 → 2005-12-14
    Underwater operations in progress until further notice by M/V tertnes vicinity 60-45N 001-16W
  19. HYDROLANT 2288/052005-12-06 → 2005-12-09
    Underwater operations 062300Z to 091500Z dec by M/V pourquoi pas in area bound by 48-20N 007-30W, 48-20N…
  20. HYDROLANT 2253/052005-12-02 → 2005-12-06
    Underwater operations 032300Z to 062300Z dec in area bound by 48-20N 007-30W, 48-20N 007-20W, 47-20N 007…
  21. HYDROLANT 2188/052005-11-25 → 2005-12-03
    Underwater operations 262300Z nov to 022300Z dec by M/V pourquoi pas in area bound by 46-40N 007-20W, 46-40N…
  22. HYDROLANT 2147/052005-11-21 → 2005-11-25
    Underwater operations 222300Z to 251100Z nov by M/V pourquois pas in areas bound by: a. 48-40N 005-40W,…
  23. HYDROLANT 2131/052005-11-19 → 2005-12-03
    Survey operations 190600Z nov to 030001Z dec by M/V tenente castelo in area bound by 00-54.2N 049-54.1W,…
  24. HYDROLANT 2053/052005-11-08 → 2005-11-19
    Underwater operations by M/V pourquoi pas: a. 082300Z to 182300Z nov in area bound by 48-00N 010-00W, 47-20N…
  25. HYDROLANT 1721/052005-09-21 → 2005-09-23
    Underwater operations 212200Z to 231000Z sep by M/V pourquoi pas in area bound by 46-20N 007-40W, 46-20N…
  26. HYDROLANT 1716/052005-09-20 → 2005-09-21
    Underwater operations 212200Z to 231000Z sep by M/V pourquoi pas in area bound by 46-20N 007-40W, 46-20N…
  27. HYDROLANT 1633/052005-09-08 → 2006-01-25
    Underwater operations in progress until further notice by M/V wave sentinel with submersible within five…
  28. HYDROLANT 1540/052005-08-23 → 2005-08-26
    Underwater operations by M/V pourquoi pas: a. in progress until 250001Z aug in area bound by 47-00N 006-00W,…
  29. HYDROLANT 1408/052005-08-03 → 2005-08-16
    Survey operations in progress until 15 aug by M/V thalassa along trackline between 42-06N 044-38W and 46-11N…
  30. NAVAREA IV 221/052005-08-03 → 2005-08-16
    Survey operations in progress until 15 aug by M/V thalassa along trackline between 42-06N 044-38W and 46-11N…
  31. NAVAREA IV 209/052005-07-26 → 2005-07-29
    Survey operations in progress until 15 aug by M/V thalassa: a. vicinity 52-06.0N 050-10.0W
  32. HYDROLANT 1188/052005-06-24 → 2005-06-28
    Underwater operations in progress until 27 jun by M/V charles darwin within two miles of 41-44.0N 009-19.6W
  33. HYDROLANT 1150/052005-06-19 → 2005-06-21
    Oceanographic operations in progress until 210001Z jun by M/V cornide de saavedra in area bound by 37-00.0N…
  34. HYDROLANT 1143/052005-06-17 → 2005-06-20
    Oceanographic operations 18 and 19 jun by M/V cornide de saavedra in area bound by 37-01.1N 008-05.9W,…
  35. HYDROLANT 1050/052005-06-04 → 2005-06-04
    Underwater operations 040900Z to 041600Z jun by M/V cable innovator with submersible vicinity 32-28N 064-27W
  36. HYDROLANT 1030/052005-05-31 → 2005-06-03
    Survey operations 01 to 02 jun by M/V pelagia in vicinity of 35-17.0N 006-47.7W
  37. HYDROLANT 921/052005-05-16 → 2005-10-05
    Oceanographic operations in progress until further notice by M/V poseidon in area bound by 33-15N 013-50W,…
  38. HYDROLANT 810/052005-04-29 → 2005-05-05
    Oceanographic operations 021500Z to 050900Z may by M/V poseidon along trackline between 29-10N 015-30W and…
  39. NAVAREA IV 42/052005-02-21 → 2005-07-13
    Salvage operations in progress until further notice by USS grapple vicinity 36-36N 075-20W
  40. HYDROLANT 219/052005-01-30 → 2005-02-05
    Oceanographic operations 31 jan thru 04 feb by M/V cornide de saavedra along trackline joining 43-00N…
  41. HYDROLANT 1835/042004-11-13 → 2004-11-25
    Survey operations 160900Z to 252100Z nov by M/V surveyor tenente castelo in area bound by 00-54.2N…
  42. HYDROLANT 1780/042004-11-03 → 2004-11-05
    Oceanographic survey by M/V charles darwin as follows: a. in progress until 041800Z nov in area bound by…
  43. HYDROLANT 1748/042004-10-29 → 2004-11-01
    Oceanographic operations 301100Z oct thru 010300Z nov by M/V charles darwin within five miles of 35-45.4N…
  44. HYDROLANT 1235/042004-07-23 → 2004-11-15
    Underwater operations in progress until further notice by M/V polar prince vicinity 42-11N 012-04W
  45. HYDROLANT 992/042004-06-08 → 2004-06-09
    Underwater operations 081700Z to 090300Z jun by M/V marion dufresne in 42-30N 010-00W
  46. HYDROLANT 913/042004-05-26 → 2004-07-23
    Underwater operations in progress until further notice by M/V polar prince vicinity 42-10.8N 012-03.6W
  47. HYDROLANT 317/042004-02-24 → 2004-03-17
    Oceanographic operations in progress until 16 mar by M/V l'atalante in area bound by 05-00N 047-40W, 05-00N…
  48. NAVAREA IV 59/042004-02-24 → 2004-03-17
    Oceanographic operations in progress until 16 mar by M/V l'atalante in area bound by 05-00N 047-40W, 05-00N…
  49. HYDROLANT 2351/032003-12-18 → 2003-12-26
    Underwater operations in progress until further notice by M/V sonne along trackline joining 36-06N 010-40W,…
  50. HYDROLANT 2338/032003-12-16 → 2003-12-18
    Underwater operations in progress until further notice by M/V sonne along trackline between 35-26N 007-15W…

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 19 · seahazards