Surveys

Underwater operations in progress until further notice by M/V sonne along trackline joining 36-06N 010-40W,…

HYDROLANT 2351/03

issued
2003-12-18 17:30Z
status
cancelled 2003-12-26 11:40Z (archive)
cancels
HYDROLANT 2292/03HYDROLANT 2338/03
authority
NAVAREA II 412/03 181530Z DEC 03; NAVAREA VI 483/03 181400Z DEC 03
position
36.853, -10.510
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER
   NOTICE BY M/V SONNE ALONG TRACKLINE JOINING
   36-06N 010-40W, 36-50N 010-09W, 37-30N 011-02W.
2. CANCEL HYDROLANT 2292/03(24).
3. CANCEL HYDROLANT 2338/03.

This area · survey operations

66 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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A
M
J
J
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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

73 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.