Geophysical operations in progress until further notice by M/V reflect aries towing 8100 meter long cable in…
South Atlantic Ocean · HYDROLANT 432/11
What this record establishes
Archived notice · 2011-03-18 01:18Z
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 VI 59/11 161356Z MAR 11.. Issued 2011-03-16 15:14Z. 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 an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2011-03-16 15:14Z
- status
- Archived notice
- authority
- NAVAREA VI 59/11 161356Z MAR 11.
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -36.247, -54.808
- vessel
- M/V REFLECT ARIES · 11 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARGENTINA-NORTHEAST COAST. URUGUAY-SOUTH COAST. GEOPHYSICAL OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V REFLECT ARIES TOWING 8100 METER LONG CABLE IN AREA BOUND BY 36-05S 055-22W, 35-54S 055-12W, 36-00S 054-22W, 36-49S 054-35W. FIVE MILE BERTH REQUESTED.
Reading this warning
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
Collected reports in this area · tows
5 within 180 nm since 2007 · 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.
- Geophysical survey until 050259Z oct by M/V reflect aries towing 8500 meter long cable along trackline…2011-05-10
- Geophysical operations ongoing by M/V bergen surveyor towing 6000 meter long cable in area bound by 35-46S…2007-11-16
- Operations in progress until further notice by M/V bergen surveyor towing 6000 meter long cable in area…2007-08-16
- Geophysical operations 18 jun until further notice by M/V bergen surveyor towing 6000 meter long cable…2007-06-17
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
0 tows listed in force · see all
Record snapshot 2026-09-28 14:38Z; source collection times vary.
Towing
Vessels under tow with long or unlit tow lines. All current tows →
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.