Surveys

Underwater operations 05 may thru 01 aug in 73-59.48N 046-42.64E

Barentsz Sea · HYDROARC 70/23

What this record establishes

Archived notice · 2023-08-02 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 57/23 041810Z MAY 23.. Issued 2023-05-04 18:21Z. 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
Barentsz Sea. The parsed report position is 73.991, 46.711. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Barentsz Sea →

issued
2023-05-04 18:21Z
status
Archived notice
self-cancels
2023-08-02 00:01Z
authority
NAVAREA XX 57/23 041810Z MAY 23.
NAVAREA
NAVAREA XX · named as the source of this relay
sea
Barentsz Sea
position
73.991, 46.711
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BARENTS SEA.
DNC 22.
1. UNDERWATER OPERATIONS 05 MAY THRU 01 AUG
   IN 73-59.48N 046-42.64E.
   500 METER BERTH REQUESTED.
2. CANCEL THIS MSG 020001Z AUG 23.

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.
Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.

All warning terms →

Collected reports in this area · survey operations

28 within 180 nm since 2011 · 0 in the last 12 months · 0 listed in force now

11
15
20
23

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

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 02:37Z; 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.