Surveys

Survey operations in progress until 28 nov by M/V oceanic sirius towing 12 12000 meter long cables in area…

Western South Atlantic · Brazil-southeast Coast · HYDROLANT 3602/20

issued
2020-11-20 04:10Z
status
cancelled 2020-11-29 00:01Z (archive)
cancels
HYDROLANT 3521/20
authority
NAVAREA V 371/20 200314Z NOV 20.
position
-24.900, -39.827
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTHEAST COAST.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 28 NOV
   BY M/V OCEANIC SIRIUS TOWING 12 12000 METER LONG
   CABLES IN AREA BOUND BY
   26-47.47S 042-25.97W, 24-22.02S 042-21.33W,
   24-22.40S 042-03.72W, 24-06.85S 042-03.35W,
   23-33.80S 040-58.57W, 22-50.33S 039-56.13W,
   22-35.07S 037-41.03W, 26-34.27S 037-35.22W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 3521/20.
3. CANCEL THIS MSG 29 NOV 20.

This area · survey operations

616 within 180 nm since 2000 · 5 in the last 12 months · 5 in force now

00
05
10
15
20
25
26

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

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.