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 · 961 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 · 233 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 · 233 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 · 199 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. NAVAREA IV 12/222022-01-06 → 2022-08-01
    Underwater operations in progress until 31 jul by tug koole 42 in and barge H-283 in: a. 06-50.0N 058-10.1W
    Western North Atlantic · Guyana
  2. NAVAREA IV 1186/212021-12-31 → 2022-02-06
    Western north atlantic 1. underwater operations in progress until 05 feb by M/V pacific duchess in area…
  3. NAVAREA IV 1185/212021-12-31 → 2022-02-06
    Western north atlantic 1. underwater operations 01 jan thru 05 feb by M/V maersk discoverer in area bound by…
  4. NAVAREA IV 1184/212021-12-31 → 2022-02-06
    Western north atlantic 1. underwater operations 01 jan thru 05 feb by M/V breaux tide and M/V polaris in…
  5. NAVAREA IV 1178/212021-12-30 → 2022-02-01
    Survey operation 01 thru 31 jan 22 by M/V thor freyja, M/V thor alpha, and M/V ramform tethys in area bound…
    Western North Atlantic
  6. NAVAREA IV 1177/212021-12-30 → 2022-05-06
    Underwater operations 01 jan thru 31 dec 22 by M/V saipem FDS2 in area bound by 08-15.96N 057-02.23W,…
    Western North Atlantic
  7. NAVAREA IV 1176/212021-12-30 → 2023-01-01
    Underwater operations 01 jan thru 31 dec 22 by M/V o'rourke tide in area bound by 08-16.60N 057-02.99W,…
    Western North Atlantic
  8. NAVAREA IV 1173/212021-12-30 → 2023-01-01
    Underwater operations 01 jan thru 31 dec 22 by M/V seacor mixteca in area bound by 08-05.94N 056-56.98W,…
    Western North Atlantic
  9. NAVAREA IV 1172/212021-12-30 → 2022-07-01
    Underwater operations in progress until 30 jun by M/V seacor tarahumara in area bound by 08-05.94N…
    Western North Atlantic
  10. NAVAREA IV 1171/212021-12-29 → 2023-01-01
    Underwater operations 01 jan thru 31 dec 22 by M/V bourbon liberty 243 in area bound by 08-11.04N…
    Western North Atlantic · Guyana
  11. NAVAREA IV 1170/212021-12-29 → 2023-01-01
    Underwater operations 01 jan thru 31 dec 22 by M/V bourbon diamond and M/V bourbon sapphire in area bound by…
    Western North Atlantic · Guyana
  12. NAVAREA IV 1167/212021-12-29 → 2022-01-11
    Survey operations in progress until 10 jan 22 by M/V dawn eb in area bound by 10-08.07N 060-59.62W,…
    Western North Atlantic · Trinidad
  13. NAVAREA IV 1164/212021-12-28 → 2023-01-01
    Underwater operations 01 jan thru 31 dec by M/V emily day mccall in area bound by 08-05.94N 056-56.98W,…
    Western North Atlantic
  14. NAVAREA IV 1162/212021-12-28 → 2022-07-01
    Survey operations 01 jan thru 30 jun by M/V mia in area bound by 07-29.46N 056-57.52W, 07-28.31N 056-55.24W,…
    Western North Atlantic · Guyana
  15. NAVAREA IV 1161/212021-12-28 → 2023-01-01
    Underwater operations 01 jan thru 31 dec 22 by M/V seacor demerara in area bound by 08-05.9N 056-57.0W,…
    Western North Atlantic
  16. NAVAREA IV 1160/212021-12-28 → 2023-01-01
    Underwater operations 01 jan thru 31 dec 22 by M/V seacor congo in area bound by 08-05.9N 056-57.0W,…
    Western North Atlantic
  17. NAVAREA IV 1159/212021-12-28 → 2023-01-01
    Underwater operations in progress until 31 dec 22 by M/V seacor amazon in area bound by 08-05.9N 056-57.0W,…
    Western North Atlantic
  18. NAVAREA IV 1158/212021-12-28 → 2022-02-01
    Survey operations in progress until 31 jan 22 by M/V bgp prospector, M/V geo service 1 and M/V national…
    Western North Atlantic · Guyana
  19. HYDROLANT 3129/212021-12-22 → 2022-03-01
    Survey operations in progress until 28 feb 22 by M/V urbano monti in area bound by 07-47.41N 052-57.88W,…
    Western North Atlantic · French Guiana
  20. NAVAREA IV 1138/212021-12-20 → 2022-03-28
    Survey operations in progress until 31 jul 22 by M/V bgp prospector in area bound by 07-00.00N 055-42.55W,…
    Western North Atlantic · Suriname
  21. HYDROLANT 3090/212021-12-17 → 2022-01-11
    Underwater operations 20 dec thru 23 jan 22 by M/V atalante in areas within one mile of: a. 46-07N 007-14W
    Eastern North Atlantic · Celtic Sea
  22. NAVAREA IV 1126/212021-12-16 → 2021-12-20
    Survey operations 20 dec thru 31 mar 22 by M/V bgp prospector in area bound by 06-45N 056-15W, 06-45N…
    Western North Atlantic · Suriname
  23. HYDROLANT 3066/212021-12-15 → 2021-12-17
    Underwater operations 17 thru 21 dec by M/V atalante in areas within one mile of: a. 46-07N 007-14W
    Eastern North Atlantic
  24. NAVAREA IV 1114/212021-12-10 → 2022-01-04
    Survey operations 12 dec thru 03 jan 22 by M/V urbano monti along trackline joining 08-00.05N 056-01.74W,…
    Western North Atlantic
  25. NAVAREA IV 1083/212021-12-02 → 2021-12-13
    Survey operations 05 thru 31 dec by M/V urbano monti in area bound by 07-47.41N 052-57.88W, 07-21.06N…
    Western North Atlantic · French Guiana
  26. NAVAREA IV 1020/212021-11-09 → 2021-11-18
    Survey operations 110400Z to 180500Z nov by M/V atlantis with submersible alvin in area within 110 miles of…
    Western North Atlantic · Puerto Rico
  27. NAVAREA IV 990/212021-10-30 → 2021-11-09
    Survey operations 050400Z thru 170500Z nov by M/V atlantis with submersible alvin in areas within: a. 60…
    Western North Atlantic · Puerto Rico
  28. NAVAREA IV 987/212021-10-30 → 2021-12-28
    Survey operations in progress until 31 dec by M/V bgp prospector in area bound by 07-00.01N 056-40.30W,…
    Western North Atlantic · Guyana
  29. HYDROLANT 2678/212021-10-29 → 2021-12-01
    Survey operations 01 thru 30 nov by M/V angeles alvarino in area bound by 31-00N 018-00W, 24-00N 018-00W,…
    Eastern North Atlantic · Canary Islands
  30. NAVAREA IV 959/212021-10-22 → 2021-10-30
    Survey operations 25 oct thru 31 dec by M/V bgp prospector in area bound by 06-45.00N 056-15.00W, 06-25.00N…
    Western North Atlantic · Suriname
  31. HYDROLANT 2601/212021-10-21 → 2021-11-04
    Survey operations 25 oct thru 03 nov by M/V sarmiento de gamboa in area bound by 42-32N 009-56W, 42-32N…
    Eastern North Atlantic · Spain
  32. NAVAREA IV 955/212021-10-21 → 2021-11-23
    Survey operations in progress until further notice by M/V ramform titan towing 12 9260 meter long cables in…
    Western North Atlantic · Barbados
  33. NAVAREA IV 947/212021-10-19 → 2021-11-01
    Survey operations in progress until 31 oct by vessels H-283 and koole 42 in area bound by 06-56.05N…
    Western North Atlantic · Guyana
  34. NAVAREA IV 933/212021-10-15 → 2021-10-26
    Survey operations 18 thru 25 oct by M/V sea strength in area bound by 10-08.07N 060-59.62W, 10-08.06N…
    Western North Atlantic · Trinidad
  35. NAVAREA IV 932/212021-10-15 → 2021-11-15
    Survey operations 15 oct thru 14 nov by M/V trinity VIII jessica and M/V dawn eb in area bound by 10-08.07N…
    Western North Atlantic · Trinidad
  36. NAVAREA IV 927/212021-10-13 → 2022-01-01
    Survey operations 15 oct until 31 dec by M/V cape davis in area bound by 08-00.70N 057-02.85W, 08-03.47N…
    Western North Atlantic · Guyana
  37. NAVAREA IV 922/212021-10-11 → 2022-01-31
    Survey operation 08 oct thru 30 jan 22 by M/V ramform tethys towing 12 12000 meter long cables in area bound…
    Western North Atlantic
  38. NAVAREA IV 898/212021-10-04 → 2021-11-23
    Survey operations in progress until 22 nov by M/V springbok in 09-55.69N 060-08.78W
    Western North Atlantic · Trinidad
  39. HYDROLANT 2448/212021-10-01 → 2021-10-10
    Survey operations 04 thru 09 oct by M/V emlo in area bound by 05-16.6N 052-37.3W, 05-13.1N 052-32.7W,…
    Western North Atlantic · French Guiana
  40. NAVAREA IV 889/212021-10-01 → 2021-10-09
    Survey operations in progress until 12 oct by M/V ramform tethys towing 12 11900 meter long cables in area…
    Western North Atlantic
  41. NAVAREA IV 879/212021-09-29 → 2021-10-11
    Survey operation 30 sep thru 30 jan 22 by M/V ramform tethys in area bound by 09-28.67N 056-00.42W,…
    Western North Atlantic
  42. NAVAREA IV 875/212021-09-28 → 2021-11-08
    Survey operations 29 sep thru 07 nov by M/V gyre in area bound by 11-01.19N 060-01.30W, 10-50.17N…
    Western North Atlantic · Eastern Caribbean Sea · Tobago
  43. NAVAREA IV 870/212021-09-26 → 2021-10-02
    Survey operations 270001Z sep until further notice by M/V ramform titan towing 12 9260 meter long cables,…
    Western North Atlantic · Barbados
  44. HYDROLANT 2312/212021-09-12 → 2021-10-18
    Survey operations 14 sep thru 17 oct by M/V sarmiento de gamboa towing 6000 meter long cable in area bound…
    Eastern North Atlantic · Bay of Biscay · Spain
  45. HYDROLANT 2296/212021-09-10 → 2021-11-06
    Survey operations in progress until 30 nov by M/V bgp pioneer towing seven mile long cable in area bound by…
    Eastern North Atlantic · Mauritania
  46. NAVAREA IV 755/212021-08-25 → 2021-10-15
    Underwater operations 26 aug thru 14 oct by M/V stril explorer in area bound by 10-05.77N 060-08.17W,…
    Western North Atlantic · Trinidad
  47. HYDROLANT 2160/212021-08-21 → 2021-08-23
    Survey operations in progress until 230005Z aug by M/V ramon margalef in area bound by 43-00.00N 015-23.80W,…
    Eastern North Atlantic · Spain
  48. NAVAREA IV 723/212021-08-19 → 2021-09-28
    Survey operations 20 aug thru 10 oct by M/V gyre in area bound by 11-35.25N 059-19.29W, 11-09.16N…
    Western North Atlantic · Tobago
  49. HYDROLANT 2114/212021-08-16 → 2021-08-21
    Survey operations in progress until 230005Z aug by M/V ramon margalef along trackline joining 43-00.00N…
    Eastern North Atlantic · Spain
  50. HYDROLANT 2038/212021-08-05 → 2021-08-28
    Survey operations 06 thru 27 aug by M/V sarmiento de gamboa with submersible in areas bound by: a. 14-47.8N…
    North Atlantic · Cape Verde

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 5 · seahazards