Oceanographic operations 04 thru 18 apr by M/V le suroit along trackline joining 01-30N 010-00W, 00-00N…
South Atlantic Ocean · HYDROLANT 729/12
What this record establishes
Archived notice · 2012-04-19 00:01Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA II 106/12 020004Z APR 12.. Issued 2012-04-02 00:34Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- South Atlantic Ocean. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2012-04-02 00:34Z
- status
- Archived notice
- authority
- NAVAREA II 106/12 020004Z APR 12.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -3.384, -8.237
- vessel
- M/V LE SUROIT · 66 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN ATLANTIC. GULF OF GUINEA. 1. OCEANOGRAPHIC OPERATIONS 04 THRU 18 APR BY M/V LE SUROIT ALONG TRACKLINE JOINING 01-30N 010-00W, 00-00N 010-00W, 06-00S 010-00W, 03-00S 003-00W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 19 APR.
Reading this warning
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
6 within 180 nm since 2006 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Underwater operations 25 feb thru 07 apr by M/V thalassa in area bound by 00-00S 010-00W, 06-00S 010-00W,…2022-02-21
- Underwater operations 09 thru 31 mar by M/V thalassa in: a. 00-00S 010-00W2021-03-05
- Underwater operations 16 feb thru 23 mar by M/V thalassa in area bound by 00-00S 010-00W, 00-00S 000-00W,…2020-02-12
- Survey operations 01 may thru 15 jun by M/V le suroit along trackline joining 00-00N 010-00W, 06-00S…2011-04-27
- Underwater operations 24 may to 16 jun by M/V atalante in area bound by 00-00 000-00, 10-00S 010-00W, 06-00S…2006-05-23
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 00:05Z; source collection times vary.
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.