Surveys

Scientific mooring, top float 509 meters below surface, established in 60-29.07N 061-15.71W

Davis Strait · NAVAREA IV 637/21

What this record establishes

Archived notice · 2021-08-06 13:28Z

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) · MCTS 261630Z JUL 21.. Issued 2021-07-26 21:24Z. 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: Davis Strait. The parsed report position is 60.484, -61.262. 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 Davis Strait →

issued: 2021-07-26 21:24Z
status: Archived notice
authority: MCTS 261630Z JUL 21.
NAVAREA: NAVAREA IV
issued by: MCTS
sea: Davis Strait
position: 60.484, -61.262
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

DAVIS STRAIT.
SCIENTIFIC MOORING, TOP FLOAT 509 METERS BELOW
SURFACE, ESTABLISHED IN 60-29.07N 061-15.71W.

Reading this warning

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

5 within 180 nm since 2015 · 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

Worldwide in the collected sources

54 survey operations listed in force · see all

Record snapshot 2026-09-29 16:52Z; 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.