Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 22 and 23 nov along trackline…
South Atlantic Ocean · HYDROLANT 2836/14
What this record establishes
Archived notice · 2014-11-24 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 VI 341/14 22 NOV 14.. Issued 2014-11-22 19:55Z. 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.
Related notices and cancellation links
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2014-11-22 19:55Z
- status
- Archived notice
- authority
- NAVAREA VI 341/14 22 NOV 14.
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -36.796, -51.592
- vessel
- M/V BGP CHALLENGER · 82 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC.
URUGUAY.
DNC 01, DNC 07.
1. SEISMIC SURVEY BY M/V BGP CHALLENGER TOWING
12000 METER LONG CABLES:
A. 22 AND 23 NOV ALONG TRACKLINE BETWEEN
37-01.08S 051-02.40W 36-26.62S 052-05.10W.
B. 23 NOV ALONG TRACKLINE BETWEEN
36-34.75S 052-08.20W 37-08.65S 051-06.52W.
TEN MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 2815/14.
3. CANCEL THIS MSG 24 NOV 14.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- 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.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · cable & pipeline work
491 within 180 nm since 2000 · 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.
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 36-35.59S…2020-09-23
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 36-35.59S…2020-09-18
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 35-54.40S…2020-09-02
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 36-19.61S…2020-08-23
- Cable operations in progress until 302300Z sep by cableship ile de brehat in area bound by 34-58.0S…2017-08-28
- Cable operations in progress until 302300Z sep by cableship ile de brehat in area bound by 34-58.0S…2017-08-16
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
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 03:48Z; source collection times vary.
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
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.