Surveys

Scientific mooring TU-1 76-00.00N 160-10.00W removed

Arctic Ocean · HYDROARC 205/16

What this record establishes

Archived notice · 2019-04-05 11:14Z

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) · NOTSHIP A 90/16 041303Z SEP 16.. Issued 2016-09-04 13:47Z. 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 parsed report position is 75.749, -150.037. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Arctic Ocean →

issued
2016-09-04 13:47Z
status
Archived notice
authority
NOTSHIP A 90/16 041303Z SEP 16.
issued by
NOTSHIP A
sea
Arctic Ocean
position
75.749, -150.037
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARCTIC.
BEAUFORT SEA.
CHUKCHI SEA.
CHART 803.
DNC 27.
1. SCIENTIFIC MOORING TU-1 76-00.00N 160-10.00W REMOVED.
2. SCIENTIFIC MOORINGS, TOP FLOAT 30 METERS, REMAIN:
   A. BGOS-A 75-00.01N 150-00.00W, AT DEPTH 3826 METERS.
   B. BGOS-D 73-59.64N 139-58.95W, AT DEPTH 3504 METERS.
   C. BGOS-B 77-59.99N 150-00.00W, AT DEPTH 3824 METERS.
3. CANCEL HYDROARC 160/12.

Reading this warning

Chart reference
The number of the nautical chart on which the reported position lies.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROARC
The U.S. long-range warning series for the Arctic Ocean.

All warning terms →

Collected reports in this area · survey operations

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

06
10
15
20

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

56 survey operations listed in force · see all

Record snapshot 2026-10-02 19:01Z; 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.