Seismic survey in progress until further notice by M/V polar duchess towing 12 7050 meter long cables in: a.…
Norwegian Sea · HYDROLANT 944/15
What this record establishes
Archived notice · 2015-05-31 15:20Z
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 XIX 33/15 191830Z APR 15 - NAVAREA XIX 35/15 191830Z APR 15.. Issued 2015-04-20 13:30Z. 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
- Norwegian Sea. The parsed report position is 71.246, 19.721. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the Norwegian Sea →
- issued
- 2015-04-20 13:30Z
- status
- Archived notice
- authority
- NAVAREA XIX 33/15 191830Z APR 15 - NAVAREA XIX 35/15 191830Z APR 15.
- NAVAREA
- NAVAREA XIX · named as the source of this relay
- sea
- Norwegian Sea
- position
- 71.246, 19.721
- vessel
- M/V POLAR DUCHESS · 41 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORWEGIAN SEA. DNC 20, DNC 21, DNC 22. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V POLAR DUCHESS TOWING 12 7050 METER LONG CABLES IN: A. 70-48.4N 020-12.2E. B. 70-35.2N 018-27.8E. C. 70-41.4N 018-07.8E. D. 72-07.3N 020-00.2E. E. 72-01.5N 021-48.3E. WIDE BERTH REQUESTED.
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.
- 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.
- 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 · cable & pipeline work
40 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.
- Cable operations in progress until 05 nov by cableship ile de batz along tracklines joining: a. 72-22.4N…2021-10-16
- Cable operations in progress until 05 nov by cableship ile de batz along tracklines joining: a: 72-22.4N…2021-09-03
- Cable operations 080600Z may thru 282359Z jun by cableship ile de batz in vicinity of trackline joining…2021-05-06
- Seismic survey in progress until 20 nov by M/V bgp prospector towing ten 8000 meter long cables in area…2016-11-05
- Seismic survey in progress until 20 nov by M/V bgp prospector towing ten 8000 meter long cables in area…2016-11-04
- Seismic survey 20 sep thru 02 nov by M/V bgp prospector towing ten 8000 meter long cables in area bound by…2016-09-18
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 08:59Z; 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.