Survey operations in the Gulf of Guinea

Hydrographic and scientific survey vessels, often towing long arrays.

in force
1
last 12 months
1
vs previous 12 (0)
—
since 2002
64

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 · 1

  1. NAVAREA II 299/26in force2026-08-09
    A list of mobile oil rigs and drill ships in the Gulf of Guinea, Pointe Noire, Sierra Leone, is provided as of August 26, 0916 UTC.
    Gulf of Guinea, Pointe Noire, Sierra Leone · Rig List

Longest in force

  1. NAVAREA II 299/26in force2026-08-09 · 13 d
    A list of mobile oil rigs and drill ships in the Gulf of Guinea, Pointe Noire, Sierra Leone, is provided as of August 26, 0916 UTC.
    Gulf of Guinea, Pointe Noire, Sierra Leone · Rig List

By year

02
03
04
05
06
07
08
09
10
13
15
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 Gulf of Guinea

Archive · 63 cancelled

  1. HYDROLANT 792/242024-04-14 → 2024-04-23
    Survey operations in progress until 22 apr by M/V borda in area bound by 03-44.80N 009-21.70E, 03-52.20N…
    Gulf of Guinea · Cameroon
  2. HYDROLANT 694/242024-04-03 → 2024-04-10
    Survey operations in progress until 09 apr by M/V borda in area bound by 03-44.8N 009-21.7E, 03-52.2N…
    Gulf of Guinea · Cameroon
  3. HYDROLANT 616/242024-03-24 → 2024-05-16
    Survey operations 27 mar thru 15 may by M/V rem saltire and M/V bgp dragon in area bound by 03-06.80N…
    Gulf of Guinea · Nigeria
  4. HYDROLANT 280/242024-02-09 → 2024-03-27
    Survey operations 12 feb thru 26 mar by M/V bgp dragon and M/V rem saltire in area bound by 03-17.54N…
    Gulf of Guinea · Nigeria
  5. HYDROLANT 2831/232023-12-07 → 2024-01-11
    Survey operations 10 dec thru 15 jan 24 by M/V apollo, M/V vanguard and M/V thor freyja in areas bound by:…
    Gulf of Guinea · Nigeria
  6. HYDROLANT 2602/232023-11-14 → 2023-12-10
    Survey operations 17 nov thru 09 dec by M/V vanguard and M/V thor freyja in area bound by 03-14.94N…
    Gulf of Guinea · Equatorial Guinea
  7. HYDROLANT 1634/232023-07-20 → 2023-09-03
    Survey operations 210001Z jul to 010100Z oct by M/V prospector towing 12 four mile long cables in area bound…
    Gulf of Guinea · Equatorial Guinea
  8. HYDROLANT 1426/232023-06-25 → 2023-07-01
    Survey operations in progress until 010001Z jul by M/V bgp prospector towing ten six mile long cables in…
    Gulf of Guinea · Sao Tome and Principe
  9. HYDROLANT 1129/232023-05-23 → 2023-07-31
    Survey operations in progress until further notice by M/V sw empress towing 12 cables in area bound by…
    Eastern North Atlantic · Gulf of Guinea · Cote D'ivoire
  10. HYDROLANT 1120/232023-05-22 → 2023-05-23
    Survey operations in progress until further notice by M/V sw empress towing 12 cables in area bound by…
    Eastern North Atlantic · Gulf of Guinea · Cote D'ivoire
  11. HYDROLANT 2778/222022-11-01 → 2023-04-17
    Survey operations in progress until further notice by M/V ramform atlas towing 16 six mile long cables, M/V…
    Gulf of Guinea · Ghana
  12. HYDROLANT 609/222022-03-01 → 2022-04-09
    Survey operations in progress until further notice by M/V ramform atlas towing 14 11100 meter long cables in…
    Gulf of Guinea · Nigeria
  13. HYDROLANT 1764/212021-07-05 → 2021-10-01
    Survey operations 09 jul thru 30 sep by M/V bourbon evolution 802 and M/V veritas viking in area bound by…
    Gulf of Guinea · Sao Tome and Principe
  14. HYDROLANT 1503/212021-06-05 → 2021-09-24
    Survey operations 06 jun thru 30 sep by M/V bgp prospector towing ten 8000 meter long cables in area bound…
    Gulf of Guinea · Sao Tome and Principe
  15. HYDROLANT 2948/202020-09-28 → 2020-10-09
    Underwater operations in progress until 08 oct by M/V proteus in area bound by 05-04.9N 005-32.5W, 05-07.3N…
    Gulf of Guinea · Cote D'ivoire
  16. HYDROLANT 983/202020-03-15 → 2020-03-24
    Survey operations in progress until 01 jul by M/V polarcus adira towing 12 six mile long cables in area…
    Gulf of Guinea · Sao Tome and Principe
  17. HYDROLANT 226/202020-01-23 → 2020-03-06
    Survey operations by M/V polarcus naila towing ten 5000 meter long cables in areas bound by: a. in progress…
    Gulf of Guinea · Equatorial Guinea
  18. HYDROLANT 3212/192019-10-20 → 2019-12-13
    Survey operations in progress until further notice by M/V ramform atlas towing 16 8000 meter long cables in…
    Gulf of Guinea · Ghana
  19. HYDROLANT 1381/192019-05-03 → 2019-07-15
    Survey operations in progress until 15 jul by M/V bgp prospector towing 12 7000 meter long cables in area…
    Gulf of Guinea · Ghana
  20. HYDROLANT 121/192019-01-14 → 2019-05-16
    Survey operations in progress until 30 jul by M/V dong fang kan tan NO1, M/V dong fang kan tan NO2, M/V dong…
    Gulf of Guinea · Nigeria
  21. HYDROLANT 2670/182018-08-21 → 2018-10-16
    Survey operations in progress until 160001Z oct by M/V ramform titan towing 12 five mile long cables, in…
    Gulf of Guinea · Equatorial Guinea
  22. HYDROLANT 1561/182018-05-18 → 2018-10-19
    Survey operations in progress until 18 oct by M/V polar marquis towing 12 8100 meter long cables in area…
    Gulf of Guinea · Equatorial Guinea
  23. HYDROLANT 566/182018-02-16 → 2018-06-18
    Survey operations in progress until further notice by M/V ramform titan towing 14 five mile long cables in…
    Gulf of Guinea · Cote D'ivoire
  24. HYDROLANT 382/182018-02-02 → 2018-04-03
    Survey operations in progress until 30 apr by M/V ramform atlas towing 12 seven mile long cables in area…
    Gulf of Guinea · Cote D'ivoire
  25. HYDROLANT 3839/172017-11-27 → 2018-01-15
    Survey operations in progress until 012359Z feb 18 by M/V ramform atlas towing 12 three mile long cables in…
    Gulf of Guinea · Nigeria
  26. HYDROLANT 3155/172017-10-04 → 2018-04-18
    Underwater operations in progress until further notice in 03-03.09N 006-41.87E
    Gulf of Guinea · Nigeria
  27. HYDROLANT 1880/172017-06-16 → 2017-06-26
    Survey operations in progress until 252359Z jun by M/V ramform atlas towing 14 six mile long cables in area…
    Gulf of Guinea · Cote D'ivoire
  28. HYDROLANT 1781/172017-06-06 → 2017-06-18
    Survey operations in progress until 172359Z jun by M/V ramform atlas towing 14 six mile long cables in area…
    Gulf of Guinea · Cote D'ivoire
  29. HYDROLANT 1127/172017-04-07 → 2017-06-06
    Survey operations in progress until 072359Z jun by M/V ramform atlas towing 14 six mile long cables in area…
    Gulf of Guinea · Cote D'ivoire
  30. HYDROLANT 1208/152015-05-17 → 2015-05-29
    Hydrographic survey 20 thru 28 may by M/V laplace towing 500 meter long cable in area bound by 06-11.62N…
    Gulf of Guinea · Togo
  31. HYDROLANT 1187/152015-05-14 → 2015-05-28
    Scientific moorings temporarily established in: a. 06-06.341N 001-31.762E
    Gulf of Guinea · Togo
  32. HYDROLANT 1161/152015-05-13 → 2015-05-14
    Scientific moorings temporarily established in: a. 06-06.341N 001-31.762E
    Gulf of Guinea · Togo
  33. HYDROLANT 873/152015-04-13 → 2015-05-12
    Scientific mooring established in 06-09.69N 002-35.47E
    Gulf of Guinea
  34. HYDROLANT 2582/132013-10-17 → 2013-12-07
    Underwater operations in progress until further notice by M/V saipem in 03-05.3N 006-05.5E
    Gulf of Guinea
  35. HYDROLANT 2209/132013-09-09 → 2013-12-05
    Underwater operations 100001Z sep until further notice by M/V scoot spirit within 500 meters of 03-29.59N…
    Gulf of Guinea · Cameroon
  36. HYDROLANT 278/102010-02-13 → 2010-03-29
    Underwater operations in progress until further notice by M/V aban abraham in 03-06.59N 009-09.95E
    Gulf of Guinea
  37. HYDROLANT 6/102010-01-02 → 2010-06-26
    Underwater operations in progress until further notice within five miles of 04-32.1N 002-54.6W
    Gulf of Guinea
  38. HYDROLANT 1894/092009-10-01 → 2009-12-01
    Underwater operations in progress until 30 nov by M/V aban abraham in 04-30.8N 002-53.9W
  39. HYDROLANT 1181/092009-06-25 → 2009-08-14
    Underwater operations in progress until further notice by M/V eirik raude in 04-32.9N 002-55.7W
  40. HYDROLANT 300/092009-02-12 → 2009-07-24
    Underwater operations in progress until further notice by M/V bourbon peridot in area bound by 04-59.00N…
  41. HYDROLANT 1468/082008-09-11 → 2008-12-01
    Underwater operations in progress until 30 nov by M/V bourbon peridot in area bound by 05-11.1N 004-33.3W,…
  42. HYDROLANT 1382/082008-08-28 → 2008-09-21
    Underwater operations 30 aug thru 20 sept by barge donaux with divers in 03-51.5N 006-58.5E 1.5 mile berth…
  43. HYDROLANT 660/082008-04-18 → 2008-06-17
    Scientific operations 21 apr thru 16 jun by M/V pourquoi pas in area bound by 03-50N 007-15E, 03-15N…
  44. HYDROLANT 85/082008-01-10 → 2008-12-13
    Underwater operations in progress until further notice along trackline between 04-25N 008-17E and 04-19N…
  45. HYDROLANT 1901/072007-11-15 → 2007-12-16
    Dredging operations in progress until 15 dec by M/V argonaut in area bound by 04-21.61N 008-33.96E,…
  46. HYDROLANT 1385/072007-08-08 → 2007-08-25
    Underwater operations 10 aug until further notice within 1000 meters of 03-52N 006-57E
  47. HYDROLANT 445/062006-03-04 → 2006-04-06
    Underwater operations 06 mar thru 05 apr along trackline between 04-13.33N 008-20.16E and 04-12.14N 008-20.29E
  48. HYDROLANT 2214/052005-11-29 → 2005-12-22
    Hydrographic survey 01 thru 21 dec by M/V tornado vicinity 04-13.3N 008-20.1E
  49. HYDROLANT 1791/052005-09-30 → 2005-10-14
    Oceanographic operations 02 thru 13 oct by M/V le suroit in vicinity of trackline between 03-14N 006-41E and…
  50. HYDROLANT 71/052005-01-11 → 2005-02-15
    Underwater operations in progress until further notice by M/V saipem 10000 in 03-13.04N 006-43.95E

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 Gulf of Guinea · seahazards