Surveys

Survey operations 03 thru 06 mar by M/V hai yang shi you 720 towing ten 11112 meter long cables in area…

Western South Atlantic · HYDROLANT 679/19

issued
2019-03-02 00:21Z
status
cancelled 2019-03-07 00:01Z (archive)
cancels
HYDROLANT 648/19
authority
NAVAREA V COASTAL S 192/19 020002Z MAR 19.
sea
South Atlantic Ocean
position
-27.386, -43.312
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS 03 THRU 06 MAR BY
   M/V HAI YANG SHI YOU 720 TOWING TEN 11112 METER
   LONG CABLES IN AREA BOUND BY
   26-42S 042-17W, 27-32S 043-52W,
   27-57S 043-50W, 26-42S 042-16W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 648/19.
3. CANCEL THIS MSG 07 MAR 19.

This area · survey operations

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

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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.