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 2462/012001-09-14 → 2001-09-16
    Survey operations 140800Z to 161400Z sep by M/V hesperides towing 6000 meter long cable along trackline…
  2. HYDROLANT 2444/012001-09-10 → 2001-09-14
    Survey operations in progress until 13 sep by M/V hesperides towing 6000 meter long cable along trackline…
  3. HYDROLANT 2272/012001-08-18 → 2001-09-02
    Oceanographic operations 20 aug thru 01 sep by M/V antares in area bound by 01-55N 049-28W, 04-28N 047-15W,…
  4. HYDROLANT 2190/012001-08-07 → 2001-08-09
    Underwater operations 082200Z to 092200Z aug by M/V ailette vicinity 46-55N 008-11W
  5. HYDROLANT 2159/012001-08-03 → 2001-08-18
    Oceanographic operations 06 thru 17 aug by M/V antares in area bound by 00-00 048-00W, 03-40N 046-00W,…
  6. HYDROLANT 2069/012001-07-24 → 2001-08-03
    Oceanographic operations in progress until 02 aug by M/V antares in area bound by 00-50S 046-10W, 00-50N…
  7. HYDROLANT 1953/012001-07-11 → 2001-08-11
    Underwater operations in progress until 18 aug by M/V glomar C.R
  8. HYDROLANT 1883/012001-07-03 → 2001-07-11
    Underwater operations in progress until 18 jul by M/V investigates glomar C.R
  9. HYDROLANT 1770/012001-06-19 → 2001-06-21
    Underwater operations in progress until 23 jun by M/V geolog dmitriy nalivkin towing cable in area bound by…
  10. HYDROLANT 1479/012001-05-22 → 2001-05-26
    Oceanographic operations in progress until 25 may by M/V hesperides along trackline joining 36-13N 008-26W,…
  11. HYDROLANT 1434/012001-05-17 → 2001-05-22
    Oceanographic operations in progress until 23 may by M/V hesperides along trackline joining 36-13N 006-16W,…
  12. HYDROLANT 1424/012001-05-16 → 2001-05-17
    Oceanographic operations in progress until 23 may by M/V hesperides along trackline joining 36-13N 006-16W,…
  13. HYDROLANT 1208/012001-04-20 → 2001-06-19
    Underwater operations in progress until 18 jun by M/V geolog dmitriy nalivkin towing long cable in area…
  14. HYDROLANT 1190/012001-04-18 → 2001-05-09
    Oceanographic operations 19 april thru 08 may by M/V poseidon vicinity of trackline joining 29-00N 015-30W,…
  15. HYDROLANT 1158/012001-04-14 → 2001-04-27
    Underwater operations in progress until 26 apr by M/V nautical tide along trackline between 36-15N 008-05W…
  16. HYDROLANT 1033/012001-03-31 → 2001-04-14
    Oceanographic operations by M/V poseidon: a. 03 thru 06 apr within ten miles of 21-00N 020-40W
  17. HYDROLANT 942/012001-03-23 → 2001-05-04
    Underwater operations in progress until 18 may by M/V probe glomar C.R
  18. HYDROLANT 564/012001-02-15 → 2001-02-19
    Oceanographic operations in progress until 20 feb by M/V nautical tide along trackline between 38-13N…
  19. HYDROLANT 533/012001-02-13 → 2001-02-14
    Oceanographic operations in progress until 16 feb by M/V corystes vicinity of trackline between 42-15N…
  20. HYDROLANT 3984/002000-11-30 → 2000-12-27
    Survey operations in progress until 26 dec by M/V sonne along trackline joining 05-04S 034-37W, 07-00N…
  21. NAVAREA IV 489/002000-11-30 → 2000-12-27
    Survey operations in progress until 26 dec by M/V sonne along trackline joining 05-04S 034-37W, 07-00N…
  22. HYDROLANT 3724/002000-11-06 → 2000-11-17
    Oceanographic survey in progress until 16 nov by M/V antares in area bound by 01-10S 039-25W, 02-05S…
  23. HYDROLANT 2715/002000-08-03 → 2000-08-07
    Hazardous underwater operations 071400Z to 072000Z aug within 50 miles of 10-30N 017-50W
  24. HYDROLANT 2370/002000-07-04 → 2000-07-10
    Underwater operations in progress until further notice by M/V toisa crest between 59-57N 004-00W and 60-00N…
  25. HYDROLANT 2358/002000-07-04 → 2000-07-05
    Survey operations 040600Z to 050001Z jul by M/V le suroit within five miles of 46-40N 006-00W
  26. HYDROLANT 1998/002000-06-02 → 2000-06-04
    Oceanographic operations 031800Z to 040230Z jun by M/V pelagia in 42-44.6N 011-46.0W
  27. HYDROLANT 1949/002000-05-30 → 2000-05-31
    Underwater operations in progress until further notice by M/V pasvik vicinity of trackline between 49-55N…
  28. HYDROLANT 1680/002000-05-11 → 2000-05-17
    Survey operations in progress until 16 may by M/V hesperides towing 2500 meter long cable along trackline…
  29. HYDROLANT 1679/002000-05-11 → 2000-05-11
    Survey operations in progress until further notice by M/V hesperides towing 2500 meter long cable along…
  30. HYDROLANT 1618/002000-05-07 → 2000-05-09
    Oceanographic survey 072100Z to 092200Z may by M/V hesperides along trackline joining 35-59N 006-01W, 35-47N…
  31. HYDROLANT 1563/002000-05-03 → 2000-05-08
    Oceanographic operations in progress until 07 may by M/V peter kottsov along trackline joining 28-07.7N…
  32. HYDROLANT 1242/002000-04-08 → 2000-04-21
    Oceanographic operations 10 thru 20 apr by M/V poseidon along trackline joining 30-00N 024-00W, 33-00N…
  33. HYDROLANT 1223/002000-04-07 → 2000-04-08
    Oceanographic operations 10 thru 20 apr by M/V poseidon along trackline joining 30-00N 024-00W, 33-00N…
  34. HYDROLANT 591/002000-02-17 → 2000-02-20
    Oceanographic operations 19 feb thru 04 mar by M/V antares along trackline between 02-00S 038-00W and 15-00N…
  35. HYDROLANT 89/002000-01-09 → 2000-01-10
    Survey operations 100100Z to 101200Z jan by M/V pelagia vicinity 42-44.5N 011-46.0W
  36. HYDROLANT 2737/991999-12-16 → 1999-12-22
    Survey operations 19 thru 23 dec by M/V suroit in area bound by 48-20N 010-20W, 48-20N 008-00W, 47-00N…
  37. HYDROLANT 2544/991999-11-26 → 1999-12-23
    Oceanographic operations 27 nov thru 22 dec by M/V discovery in area between 35-00N, 010-00W, 38-00N…
  38. HYDROLANT 2157/991999-10-08 → 1999-10-15
    Survey operations in progress until 14 oct by M/V poseidon in area bound by 45-20N 011-00W, 45-20N 008-00W,…
  39. HYDROLANT 1745/991999-08-20 → 1999-08-22
    Underwater operations in progress until further notice by M/V mirfak along trackline joining 55-18N 009-50W,…
  40. HYDROLANT 1727/991999-08-18 → 1999-08-19
    Underwater operations in progress until further notice by M/V jean charcot along trackline between 49-30N…
  41. HYDROLANT 1712/991999-08-16 → 1999-08-18
    Underwater operations in progress until further notice by M/V jean charcot along trackline between 49-28N…
  42. HYDROLANT 1701/991999-08-14 → 1999-08-16
    Underwater operations in progress until further notice by M/V jean charcot along trackline between 49-55N…
  43. HYDROLANT 1683/991999-08-12 → 1999-08-12
    Underwater operations in progress until further notice by M/V geo searcher along trackline joining 55-17N…
  44. HYDROLANT 1677/991999-08-11 → 1999-08-12
    Underwater operations in progress until further notice by M/V geo searcher between 55-17N 009-52W and 55-34N…
  45. HYDROLANT 1668/991999-08-10 → 1999-08-11
    Underwater operations in progress until further notice by M/V geo searcher between 55-17N 009-52W and 55-16N…
  46. HYDROLANT 1654/991999-08-08 → 1999-08-10
    Underwater operations in progress until further notice by M/V geo searcher between 55-34N 007-42W and 55-17N…
  47. HYDROLANT 1632/991999-08-06 → 1999-08-08
    Underwater operations in progress until further notice by M/V jean charcot along trackline between 49-56N…
  48. NAVAREA IV 253/991999-07-26 → 1999-09-10
    Underwater operations in progress until further notice by M/V ferrell in 31-23N 080-53W
  49. HYDROLANT 1401/991999-07-07 → 1999-07-15
    Survey operations in progress until 15 jul by M/V certamen along trackline joining 29-23.6N 017-15.7W,…
  50. HYDROLANT 1010/991999-05-18 → 1999-05-26
    Survey operations in progress until further notice by M/V sea explorer towing two mile long cable vicinity…

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 21 · seahazards