Surveys

Survey operations in progress until further notice by M/V ramform valiant towing ten cables in area bound by…

Eastern South Atlantic · Angola · HYDROLANT 638/12

issued
2012-03-22 10:35Z
status
cancelled 2012-05-21 20:23Z (archive)
cancels
HYDROLANT 455/12
authority
NAVAREA VII 84/12 220856Z MAR 12.
position
-11.814, 12.461
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN SOUTH ATLANTIC.
ANGOLA.
1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE
   BY M/V RAMFORM VALIANT TOWING TEN CABLES
   IN AREA BOUND BY
   10-49.8S 012-43.2E, 12-47.6S 012-43.2E,
   12-48.1S 012-12.1E, 10-49.8S 012-12.1E.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 455/12.

This area · survey operations

10 within 180 nm since 2011 · 0 in the last 12 months · 0 in force now

11
15
20
21

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

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

75 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.