Surveys

Survey operations in progress until 20 dec by M/V belkacem grine in area bound by 36-19-44N 001-28-49W,…

Mediterranean Sea - Western Basin · HYDROLANT 3672/20

What this record establishes

Archived notice · 2020-12-21 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 III 1601/20 260000Z NOV 20.. Issued 2020-11-26 00:02Z. 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: Mediterranean Sea - Western Basin. 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 Mediterranean Sea - Western Basin →

issued: 2020-11-26 00:02Z
status: Archived notice
authority: NAVAREA III 1601/20 260000Z NOV 20.
NAVAREA: NAVAREA III · named as the source of this relay
sea: Mediterranean Sea - Western Basin
position: 37.249, 2.551
vessel: M/V BELKACEM GRINE
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
ALBORAN SEA.
ALGERIA.
DNC 08.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 20 DEC
   BY M/V BELKACEM GRINE IN AREA BOUND BY
   36-19-44N 001-28-49W, 36-41-20N 000-51-59W,
   37-00-00N 000-00-00E, 37-36-30N 000-46-23E,
   37-38-04N 001-52-07E, 37-58-09N 002-45-56E,
   38-01-34N 004-26-57E, 38-14-14N 004-28-33E,
   38-13-41N 006-01-12E, 37-05-35N 006-01-16E,
   37-06-41N 002-59-16E, 36-45-22N 001-22-55E
   35-43-31N 001-26-58W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 21 DEC 20.

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.
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

35 within 180 nm since 2001 · 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

Hazardous operations 290001Z to 302359Z oct in area bound by 38-30.60N 000-30.80E, 38-35.50N 000-46.40E,…Exercises · 84.1 nm
Drifting target shooting exercise from 290001 to 292359 UTC oct 26 or 300001 to 302359 UTC oct 26Other · 84.1 nm

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-03 02:23Z; 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.