Surveys

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 · HYDROLANT 1781/17

issued
2017-06-06 17:24Z
status
cancelled 2017-06-18 00:59Z (archive)
self-cancels
2017-06-18 00:59Z
cancels
HYDROLANT 1127/17
authority
NAVAREA II 219/17 061632Z JUN 17.
sea
Gulf of Guinea
position
3.868, -3.654
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF GUINEA.
COTE D'IVOIRE.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 172359Z JUN
   BY M/V RAMFORM ATLAS TOWING 14 SIX MILE LONG
   CABLES IN AREA BOUND BY
   03-37.6N 004-00.2W, 04-24.4N 003-51.0W,
   04-24.4N 003-28.3W, 04-10.9N 003-18.4W,
   03-16.9N 003-29.1W, 03-16.9N 003-44.9W.
   SEVEN MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 1127/17.
3. CANCEL THIS MSG 180059Z JUN 17.

This area · survey operations

17 within 180 nm since 2002 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

86 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.