Surveys

Hydrographic survey 01 and 02 mar by M/V taurus in area bound by 23-04.3S 043-01.1W, 23-04.3S 042-57.9W,…

South Atlantic Ocean · HYDROLANT 381/05

What this record establishes

Archived notice · 2005-03-03 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 V 189/05 250403Z FEB 05.. Issued 2005-02-25 06:06Z. 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
South Atlantic Ocean. 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 South Atlantic Ocean →

issued
2005-02-25 06:06Z
status
Archived notice
authority
NAVAREA V 189/05 250403Z FEB 05.
NAVAREA
NAVAREA V · named as the source of this relay
sea
South Atlantic Ocean
position
-23.096, -42.992
vessel
M/V TAURUS · 18 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROGRAPHIC SURVEY 01 AND 02 MAR BY M/V TAURUS IN AREA
   BOUND BY 23-04.3S 043-01.1W, 23-04.3S 042-57.9W,
   23-07.2S 042-57.9W, 23-07.2S 043-01.1W.
2. CANCEL THIS MSG 03 MAR.

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

525 within 180 nm since 2000 · 20 in the last 12 months · 3 listed in force now

00
05
10
15
20
25
26

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 2026-10-03 03:57Z; 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.