Surveys

Survey operations 13 thru 20 jul by M/V hai yang shi you 720 in area bound by 26-26S 044-16W, 26-44S…

Western South Atlantic · HYDROLANT 1844/21

issued
2021-07-13 00:55Z
status
cancelled 2021-07-21 00:01Z (archive)
authority
NAVAREA V COASTAL S 506/21 130032Z JUL 21.
sea
South Atlantic Ocean
position
-26.885, -44.761
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS 13 THRU 20 JUL BY M/V HAI
   YANG SHI YOU 720 IN AREA BOUND BY
   26-26S 044-16W, 26-44S 044-06W,
   27-20S 045-21W, 27-06S 045-27W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 21 JUL 21.

This area · survey operations

409 within 180 nm since 1999 · 3 in the last 12 months · 2 in force now

99
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

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.