Surveys

Scientific moorings established: a. 71-37.87N 157-19.58W, top float 65 meters

Beaufort Sea · HYDROARC 9/22

What this record establishes

Archived notice · 2022-03-25 11:51Z

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 XVII 4/22 191005Z JAN 22.. Issued 2022-01-19 10:13Z. 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
Beaufort Sea. The parsed report position is 71.296, -152.151. 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 Beaufort Sea →

issued
2022-01-19 10:13Z
status
Archived notice
authority
NAVAREA XVII 4/22 191005Z JAN 22.
NAVAREA
NAVAREA XVII · named as the source of this relay
sea
Beaufort Sea
position
71.296, -152.151
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BEAUFORT SEA.
CHUKCHI SEA.
ALASKA.
DNC 27.
SCIENTIFIC MOORINGS ESTABLISHED:
A. 71-37.87N 157-19.58W, TOP FLOAT 65 METERS.
B. 71-25.33N 152-44.10W, TOP FLOAT 77 METERS.
C. 70-50.09N 146-23.56W, TOP FLOAT 58 METERS.

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.
Scientific mooring
Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
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.

All warning terms →

Collected reports in this area · survey operations

53 within 180 nm since 2004 · 0 in the last 12 months · 1 listed in force now

04
05
10
15
20
24

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

56 survey operations listed in force · see all

Record snapshot 2026-10-01 19:43Z; 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.