Surveys

Survey operations in progress until 21 mar by M/V hai yang shi you 720 towing ten 11112 meter long cables in…

Western South Atlantic · HYDROLANT 829/19

issued: 2019-03-15 02:57Z
status: cancelled 2019-03-18 00:44Z (archive)
authority: NAVAREA V COASTAL S 233/19 150122Z MAR 19.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 21 MAR BY
   M/V HAI YANG SHI YOU 720 TOWING TEN 11112 METER
   LONG CABLES IN AREA BOUND BY
   26-43S 42-33W, 27-31S 44-05W,
   27-31S 43-56W, 26-43S 42-24W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 22 MAR 19.

Timeline

Survey operations in progress until 21 mar by M/V hai yang shi you 720 towing 11 11112 meter long cables in…cancelled by · 2019-03-18

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.