Surveys

Survey operations 08 aug thru 31 oct by M/V akademik nametkin towing 6000 meter long cable in area bound by…

Arctic Ocean · HYDROARC 175/18

What this record establishes

Archived notice · 2018-11-01 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 116/18 071730Z AUG 18.. Issued 2018-08-07 18:12Z. 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.

Current notices and reporting history in the Arctic Ocean →

issued
2018-08-07 18:12Z
status
Archived notice
authority
NAVAREA XX 116/18 071730Z AUG 18.
NAVAREA
NAVAREA XX · named as the source of this relay
sea
Arctic Ocean
position
78.201, 122.646
vessel
M/V AKADEMIK NAMETKIN · 2 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARCTIC OCEAN.
LAPTEV SEA.
RUSSIA.
DNC 27.
1. SURVEY OPERATIONS 08 AUG THRU 31 OCT BY
   M/V AKADEMIK NAMETKIN TOWING 6000 METER
   LONG CABLE IN AREA BOUND BY
   79-30.4N 116-20.5E, 79-02.2N 121-10.1E,
   78-50.6N 127-48.5E, 78-13.5N 130-48.7E,
   77-55.9N 129-13.1E, 77-34.6N 130-13.7E,
   77-07.0N 131-24.4E, 76-49.5N 129-54.2E,
   76-49.4N 129-36.8E, 77-24.3N 127-04.9E,
   76-51.8N 124-37.8E, 77-24.2N 121-46.6E,
   77-24.7N 121-12.6E, 78-37.8N 112-37.8E
   SEVEN MILE BERTH REQUESTED.
2. CANCEL THIS MSG 01 NOV 18.

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.

All warning terms →

Collected reports in this area · survey operations

8 within 180 nm since 2006 · 0 in the last 12 months · 0 listed in force now

06
10
15
20
22

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-02 07:16Z; 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.