Survey operations 27 jul thru 31 oct by M/V academic lazarev towing 8500 meter cable in area bound by…
Arctic Ocean · HYDROARC 125/20
What this record establishes
Archived notice · 2020-09-10 14:03Z
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 84/20 231730Z JUL 20.. Issued 2020-07-23 18:51Z. 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.
Related notices and cancellation links
- Cancel HYDROARC 125/20 and this msglater cancellation notice
- issued
- 2020-07-23 18:51Z
- status
- Archived notice
- authority
- NAVAREA XX 84/20 231730Z JUL 20.
- NAVAREA
- NAVAREA XX · named as the source of this relay
- sea
- Arctic Ocean
- position
- 80.720, 39.599
- vessel
- M/V ACADEMIC LAZAREV · 7 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC. BARENTS SEA. RUSSIA. DNC 22. 1. SURVEY OPERATIONS 27 JUL THRU 31 OCT BY M/V ACADEMIC LAZAREV TOWING 8500 METER CABLE IN AREA BOUND BY 81-37-50N 035-00-07E, 80-59-48N 046-21-12E, 80-46-10N 044-15-16E, 80-14-15N 044-51-48E, 80-08-49N 044-17-32E, 79-55-32N 039-41-14E, 80-12-27N 035-00-03E. SEVEN MILE BERTH REQUESTED. 2. CANCEL THIS MSG 01 NOV 20.
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.
Collected reports in this area · survey operations
2 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
56 survey operations listed in force · see all
Record snapshot 2026-10-02 22:54Z; 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.