Surveys
Survey operations in progress until further notice by M/V sw empress towing 7000 meter long cables in area…
Eastern South Atlantic · Congo (brazzaville) · HYDROLANT 1787/23
- issued
- 2023-08-12 14:33Z
- status
- cancelled 2023-09-21 15:34Z (archive)
- authority
- NAVAREA II 213/23 121409Z AUG 23.
- position
- -4.982, 11.679
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. CONGO (BRAZZAVILLE). DNC 01. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V SW EMPRESS TOWING 7000 METER LONG CABLES IN AREA BOUND BY 04-47.59S 011-25.92E, 04-40.87S 011-42.65E, 05-07.54S 011-54.83E, 05-19.19S 011-40.40E. SIX MILE BERTH REQUESTED.
This area · survey operations
71 within 180 nm since 2003 · 1 in the last 12 months · 1 in force now
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- Survey operations in progress until further notice by M/V ramform victory towing 12 three mile long cables…2026-07-03
- Survey operations 30 mar until further notice by M/V ramform vanguard towing ten 8000 meter long cables in…2023-03-28
- Survey operations in progress until further notice by M/V ramform vanguard towing 14 4500 meter long cables…2023-02-27
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 6500 meter long cables…2023-01-05
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 4050 meter long cables…2022-11-07
- Survey operations in progress until further notice by M/V amazon conqueror towing 14 four mile long cables…2022-01-27
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 1787/23 and this msg, operations completedcancelled by · 2023-09-21
Nearby now · within 120 nm
Worldwide now
73 survey operations in force · see all
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.