Surveys

Survey operations in progress until further notice by M/V W.G

Eastern South Atlantic · Angola · HYDROLANT 1807/11

issued: 2011-11-01 15:47Z
status: cancelled 2011-12-24 10:39Z (archive)
authority: NAVAREA VII 202/11 011510 NOV 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN SOUTH ATLANTIC.
ANGOLA.
SURVEY OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V W.G. TASMAN
IN AREA BETWEEN
06-47S 07-20S AND 011-12E 011-42E.
SIX MILE BERTH REQUESTED.

Timeline

HYDROLANT warnings in force 241000Z dec 11cancelled by · 2011-12-24

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.