Surveys

Survey operations in progress until 311900Z may by M/V aquadynamic in vicinity of trackline between 51-20N…

North Sea · HYDROLANT 1697/17

issued
2017-05-31 01:20Z
status
cancelled 2017-05-31 20:00Z (archive)
self-cancels
2017-05-31 20:00Z
authority
WZ 632/17 310100Z MAY 17.
sea
North Sea
position
51.333, 1.892
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
DNC 20.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 311900Z
   MAY BY M/V AQUADYNAMIC IN VICINITY OF
   TRACKLINE BETWEEN
   51-20N 001-46E AND 51-20N 002-01E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 312000Z MAY 17.

This area · survey operations

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

97
00
05
10
15
20
23

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

83 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.