Surveys

Oceanographic operations in progress until further notice by M/V professor logachev towing equipment along…

Tyrrhenian Sea · HYDROLANT 1130/04

What this record establishes

Archived notice · 2004-09-01 16:39Z

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) · MARISARDEGNA 120/04 050604Z JUL 04.. Issued 2004-07-05 13:26Z. 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
Tyrrhenian Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Tyrrhenian Sea →

issued
2004-07-05 13:26Z
status
Archived notice
authority
MARISARDEGNA 120/04 050604Z JUL 04.
issued by
MARISARDEGNA
sea
Tyrrhenian Sea
position
39.667, 9.833
vessel
M/V PROFESSOR LOGACHEV · 13 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

OCEANOGRAPHIC OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V PROFESSOR LOGACHEV TOWING EQUIPMENT
ALONG TRACKLINE BETWEEN 40-20N 009-50E AND 39-00N 009-50E.

Reading this warning

Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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

183 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
00
05
10
15
20
24

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

54 survey operations listed in force · see all

Record snapshot 2026-10-02 12:59Z; 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.