Surveys

Oceanographic operations by M/V thalassa: a. 09 sep in area between 25-00N 27-00N and 035-00W 037-00W

North Atlantic · NAVAREA IV 518/12

issued: 2012-09-08 18:14Z
status: cancelled 2012-09-11 00:01Z (archive)
authority: THALASSA 081446Z SEP 12.
sea: North Atlantic Ocean
position: 29.000, -33.000
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
1. OCEANOGRAPHIC OPERATIONS BY M/V THALASSA:
   A. 09 SEP IN AREA BETWEEN
      25-00N 27-00N AND 035-00W 037-00W.
   B. 10 SEP IN 29-00N 033-00W.
2. CANCEL THIS MSG 11 SEP 12.

This area · survey operations

3 within 180 nm since 2006 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

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.