Surveys

Underwater survey operations in progress until 121100Z nov by M/V geo surveyor along trackline joining…

HYDROLANT 3799/00

issued
2000-11-10 18:56Z
status
cancelled 2000-11-12 12:00Z (archive)
self-cancels
2000-11-12 12:00Z
authority
MARDIPART LA SPEZIA 351/00 101220Z NOV 00
sea
Tyrrhenian Sea
position
41.762, 11.671
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER SURVEY OPERATIONS IN PROGRESS UNTIL 121100Z NOV
   BY M/V GEO SURVEYOR ALONG TRACKLINE JOINING 41-51.7N 011-01.7E,
   41-40.5N 012-12.6E, 41-40.5N 012-13.6E, 41-40.7N 012-14.5E,
   41-41.0N 012-15.4E, 41-41.3N 012-15.9E, 41-43.1N 012-18.2E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 121200Z NOV.

This area · survey operations

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

97
00
05
10
15
20
24

Season · when survey operations happen here

J
F
M
A
M
J
J
A
S
O
N
D

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.