Surveys

Survey operations in progress until further notice by M/V geosurveyor XI in vicinity of trackline between…

North Sea · HYDROLANT 2453/17

issued
2017-08-09 12:00Z
status
cancelled 2017-08-14 11:23Z (archive)
authority
WZ 972/17 091140Z AUG 17.
sea
North Sea
position
51.322, 1.996
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
DNC 20.
SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE
BY M/V GEOSURVEYOR XI IN VICINITY OF TRACKLINE BETWEEN
51-19.5N 001-47.8E AND 51-19.1N 002-11.7E.
WIDE BERTH REQUESTED.

This area · survey operations

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

97
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05
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23

Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

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.