Survey operations in progress until 04 oct by M/V atlantic explorer towing 10800 meter long cable in area…
North Atlantic Ocean · NAVAREA IV 873/17
What this record establishes
Archived notice · 2017-10-03 00:02Z
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) · ATLANTIC EXPLORER 281458Z SEP 17.. Issued 2017-09-29 11:59Z. 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
- North 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
- Survey operations in progress until 04 oct by M/V atlantic explorer towing 10800 meter long cable in area…cancelled by this notice
- Cancel NAVAREA IV 873/17 and this msglater cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2017-09-29 11:59Z
- status
- Archived notice
- authority
- ATLANTIC EXPLORER 281458Z SEP 17.
- NAVAREA
- NAVAREA IV
- issued by
- ATLANTIC EXPLORER
- sea
- North Atlantic Ocean
- position
- 44.993, -51.882
- vessel
- M/V ATLANTIC EXPLORER · 64 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH ATLANTIC. CANADA. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 04 OCT BY M/V ATLANTIC EXPLORER TOWING 10800 METER LONG CABLE IN AREA BOUND BY 45-01.6N 053-45.0W, 46-13.1N 052-21.6W, 45-04.2N 050-04.7W, 43-42.8N 051-20.6W. WIDE BERTH REQUESTED. 2. CANCEL NAVAREA IV 816/17. 3. CANCEL THIS MSG 05 OCT 17.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- NAVAREA
- One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
- 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
10 within 180 nm since 2017 · 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.
- Survey operations in progress until 18 july by M/V amazon conqueror towing 12 6000 meter long cables in area…2024-05-18
- Survey operations 30 jul until further notice by M/V ramform atlas towing 14 9260 meter long cables in area…2021-07-29
- Survey operations in progress until further notice by M/V ramform atlas towing 14 9000 meter long cables in…2019-05-31
- Survey operations 31 may until further notice by M/V sanco atlantic towing 10050 meter long cable in area…2019-05-30
- Survey operations in progress until 01 nov by M/V atlantic explorer towing 10800 meter long cable in area…2017-10-05
- Survey operations in progress until 04 oct by M/V atlantic explorer towing 10800 meter long cable in area…2017-09-17
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
55 survey operations listed in force · see all
Record snapshot 2026-10-02 10:53Z; 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.