Surveys

Survey operations 26 mar thru 02 apr by M/V hai yang shi you 720 towing ten 11112 meter long cables in area…

Western South Atlantic · HYDROLANT 936/19

issued
2019-03-25 03:43Z
status
cancelled 2019-03-30 01:18Z (archive)
authority
NAVAREA V COASTAL S 271/19 250055Z MAR 19.
sea
South Atlantic Ocean
position
-27.122, -43.280
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS 26 MAR THRU 02 APR
   BY M/V HAI YANG SHI YOU 720 TOWING TEN
   11112 METER LONG CABLES IN AREA BOUND BY
   26-43S 042-25W, 26-43S 042-34W,
   26-43S 042-35W, 27-30S 044-06W,
   27-31S 044-05W, 27-31S 043-56W,
   27-31S 043-57W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 03 APR 19.

This area · survey operations

451 within 180 nm since 2000 · 2 in the last 12 months · 0 in force now

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05
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25
26

Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

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.