Survey operations 04 aug thru 01 nov by M/V akademik nemchinov towing 9500 meter long cable in areas bound…
Arctic Ocean · HYDROARC 179/22
What this record establishes
Archived notice · 2022-11-02 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 XX 119/22 281832Z JUL 22.. Issued 2022-07-30 03:59Z. 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
- Arctic 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.
- issued
- 2022-07-30 03:59Z
- status
- Archived notice
- self-cancels
- 2022-11-02 00:01Z
- authority
- NAVAREA XX 119/22 281832Z JUL 22.
- NAVAREA
- NAVAREA XX · named as the source of this relay
- sea
- Arctic Ocean
- position
- 79.345, 124.224
- vessel
- M/V AKADEMIK NEMCHINOV · 26 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC.
LAPTEV SEA.
RUSSIA.
DNC 27.
1. SURVEY OPERATIONS 04 AUG THRU 01 NOV
BY M/V AKADEMIK NEMCHINOV
TOWING 9500 METER LONG CABLE
IN AREAS BOUND BY:
A. 75-45.51N 134-33.01E, 75-50.66N 134-17.01E,
77-14.27N 130-54.43E, 77-08.40N 129-42.49E,
76-49.43N 129-54.16E, 74-28.27N 130-24.98E,
74-00.44N 131-19.30E, 74-10.85N 135-00.32E.
B. 81-44.32N 133-39.18E, 81-37.10N 113-45.77E,
81-22.47N 111-02.50E, 78-16.05N 115-18.82E,
77-57.11N 128-53.23E, 78-19.89N 131-22.81E,
78-58.39N 131-44.73E.
SEVEN MILE BERTH REQUESTED.
2. CANCEL THIS MSG 020001Z NOV 22.
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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Collected reports in this area · survey operations
4 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.
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 07:18Z; 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.