Surveys

Survey operations in progress until 31 mar by M/V meragi in area bound by 07-10.0N 116-47.0E, 07-10.0N…

Sulu Sea · HYDROPAC 1785/00

What this record establishes

Archived notice · 2001-04-01 00:00Z

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 XI 757/00 170805Z DEC 00. Issued 2000-12-17 08:23Z. 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
Sulu Sea. 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 Sulu Sea →

issued
2000-12-17 08:23Z
status
Archived notice
authority
NAVAREA XI 757/00 170805Z DEC 00
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Sulu Sea
position
7.480, 116.860
vessel
M/V MERAGI
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 31 MAR BY M/V MERAGI
   IN AREA BOUND BY 07-10.0N 116-47.0E, 07-10.0N 116-40.5E,
   07-40.0N 116-40.5E, 07-40.0N 117-00.0E,
   07-32.0N 117-13.4E, 07-21.0N 116-50.0E.
2. CANCEL THIS MSG 01 APR 2001.

Reading this warning

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.
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

11 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
19

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 2026-10-01 07:15Z; 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.