Surveys

Survey operations in progress until 080259Z apr by M/V polar bjorn towing 50 meter long cable in area…

HYDROLANT 533/04

issued: 2004-04-01 07:20Z
status: cancelled 2004-04-08 03:59Z (archive)
self-cancels: 2004-04-08 03:59Z
cancels: HYDROLANT 2354/03
authority: 1. NAVAREA V 282/04 2. NAVAREA V 281/04 010447Z APR 04
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 080259Z APR
   BY M/V POLAR BJORN TOWING 50 METER
   LONG CABLE IN AREA BETWEEN
   24-10S 24-36S AND 043-00W 044-43W.
   TWO MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 2354/03.
3. CANCEL THIS MSG 080359Z APR.

Timeline

Ararangua light 28-56.1S 049-21.7W unreliablecancels · 2003-12-19
Ararangua light 28-56.1S 049-21.7W unreliablereplaced · 2003-12-19

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 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.