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
Longest in force
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
- HYDROLANT 1701/042004-10-21 → 2004-12-07Oceanographic operations in progress until further notice by M/V saipem 10000 in 03-14.9N 005-26.5E
- HYDROLANT 126/042004-01-22 → 2004-01-30Underwater operations in progress until further notice by M/V saipem 10000 in 03-59N 006-29E
- HYDROLANT 1676/032003-09-03 → 2003-11-14Underwater operations in progress until further notice by M/V saipem 10000 in 05-44.4N 004-26.3E
- HYDROLANT 1508/032003-08-09 → 2003-09-03Underwater operations in progress until further notice by M/V saipem 10000 in 05-44.9N 004-28.1E
- HYDROLANT 1507/032003-08-09 → 2003-08-09Underwater operations in progress until further notice by M/V saipem 10000 in 05-44.9N 004-05.4E
- HYDROLANT 1088/032003-06-04 → 2003-08-02Underwater operations in progress until 01 aug by M/V seaway polaris vicinity of trackline between 04-42.6N…
- HYDROLANT 1048/032003-05-29 → 2003-09-02Underwater operations in progress until further notice by M/V normand progress vicinity 03-48.0N 008-04.5E
- HYDROLANT 483/032003-03-03 → 2003-04-16Survey operations in progress until 15 apr by M/V gulf supplier in area bound by 06-00N 001-40E, 05-25N…
- HYDROLANT 478/032003-03-02 → 2003-03-02Survey operations in progress until 15 apr by M/V gulf supplier in area bound by 06-00N 001-40E, 05-25N…
- HYDROLANT 25/032003-01-04 → 2003-01-28Oceanographic operations 06 thru 27 jan by M/V le suroit in area bound by 03-16.3N 006-14.8E, 03-16.5N…
- HYDROLANT 2755/022002-12-15 → 2002-12-26Underwater operations in progress until further notice by M/V saipem 10000 vicinity 05-45N 004-28E
- HYDROLANT 2566/022002-11-20 → 2002-12-15Underwater operations in progress until further notice by M/V saipem 10000 vicinity 04-46.1N 004-43.5E
- HYDROLANT 1972/022002-09-04 → 2002-10-01Underwater operations in progress until further notice by M/V rio supporter vicinity 05-00N 004-32W
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.