Surveys

Underwater survey in progress until 220400Z dec by M/V argonaut with equipment along trackline between…

HYDROLANT 4192/00

issued
2000-12-22 00:41Z
status
cancelled 2000-12-22 05:00Z (archive)
self-cancels
2000-12-22 05:00Z
authority
MARDIPART LA SPEZIA 411/00 200830Z DEC 00
sea
Tyrrhenian Sea
position
41.460, 12.169
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER SURVEY IN PROGRESS UNTIL 220400Z DEC BY M/V ARGONAUT
   WITH EQUIPMENT ALONG TRACKLINE BETWEEN 41-18.4N 012-04.7E AND
   41-36.8N 012-15.6E. WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 220500Z DEC.

This area · survey operations

107 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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J
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month of issue, all years in the archive

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

86 survey operations in force · see all

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.