Surveys
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 · HYDROLANT 983/20
- issued
- 2020-03-15 11:29Z
- status
- cancelled 2020-03-24 11:00Z (archive)
- cancels
- HYDROLANT 3775/19
- authority
- NAVAREA II 85/20 150858Z MAR 20.
- position
- 0.842, 7.125
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
GULF OF GUINEA. SAO TOME AND PRINCIPE. DNC 01. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 01 JUL BY M/V POLARCUS ADIRA TOWING 12 SIX MILE LONG CABLES IN AREA BOUND BY 01-15N 006-22E, 01-15N 007-53E, 00-26N 007-53E, 00-26N 006-22E. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 3775/19. 3. CANCEL THIS MSG 02 JUL 20.
This area · survey operations
24 within 180 nm since 2003 · 0 in the last 12 months · 0 in force now
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- Survey operations 27 mar thru 15 may by M/V rem saltire and M/V bgp dragon in area bound by 03-06.80N…2024-03-24
- Survey operations 12 feb thru 26 mar by M/V bgp dragon and M/V rem saltire in area bound by 03-17.54N…2024-02-09
- Survey operations 10 dec thru 15 jan 24 by M/V apollo, M/V vanguard and M/V thor freyja in areas bound by:…2023-12-07
- Survey operations 17 nov thru 09 dec by M/V vanguard and M/V thor freyja in area bound by 03-14.94N…2023-11-14
- Survey operations 210001Z jul to 010100Z oct by M/V prospector towing 12 four mile long cables in area bound…2023-07-20
- Survey operations in progress until 010001Z jul by M/V bgp prospector towing ten six mile long cables in…2023-06-25
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Cable operations 120001Z dec until further notice by M/V polarcus adira towing 12 six mile long cables in…cancels · 2019-12-09
- Cable operations 120001Z dec until further notice by M/V polarcus adira towing 12 six mile long cables in…replaced · 2019-12-09
- Cancel HYDROLANT 983/20 and this msgcancelled by · 2020-03-24
Nearby now · within 120 nm
Nothing else in force 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.