Surveys

Survey operations in progress until 17 apr by M/V hai yang shi you 720 towing ten 12000 meter long cables in…

Western South Atlantic · HYDROLANT 1111/19

issued: 2019-04-09 09:19Z
status: cancelled 2019-04-16 07:13Z (archive)
cancels: HYDROLANT 1087/19
authority: NAVAREA V COASTAL S 317/19 090315Z APR 19.
sea: South Atlantic Ocean
position: -27.118, -43.288
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 17 APR
   BY M/V HAI YANG SHI YOU 720 TOWING TEN
   12000 METER LONG CABLES IN AREA BOUND BY
   26-41.00S 042-24.00W, 26-38.00S 042-18.00W,
   26-39.00S 042-27.00W, 26-41.00S 042-32.00W,
   27-32.00S 044-10.00W, 27-32.01S 044-09.00W,
   27-33.00S 044-04.00W, 27-32.00S 043-59.00W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1087/19.
3. CANCEL THIS MSG 18 APR 19.

This area · survey operations

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

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations in progress until 10 apr by M/V hai yang shi you 720 towing ten 12000 meter long cables in…cancels · 2019-04-06
Survey operations in progress until 10 apr by M/V hai yang shi you 720 towing ten 12000 meter long cables in…replaced · 2019-04-06
Survey operations in progress until 02 may by M/V hai yang shi you 720 towing ten 12000 meter long cables in…cancelled by · 2019-04-16

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.