Surveys

Underwater operations in progress until further notice by M/V englishman vicinity trackline joining 52-08N…

HYDROLANT 811/00

issued
2000-03-04 09:20Z
status
cancelled 2000-03-05 10:45Z (archive)
cancels
HYDROLANT 798/00
authority
WZ 403/00 040841Z MAR 00
sea
Celtic Sea
position
51.902, -5.922
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY
   M/V ENGLISHMAN VICINITY TRACKLINE JOINING 52-08N 006-03W,
   51-51N 005-51W, 51-39N 005-54W. WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 798/00.

This area · survey operations

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

99
00
05
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24

Season · when survey operations happen here

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M
J
J
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month of issue, all years in the archive

Timeline

Nearby now · 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.