Surveys

Survey operations in progress until 30 apr by M/V ramform sovereign towing 14 9500 meter long cables in area…

South China Sea · HYDROPAC 213/22

issued: 2022-01-25 18:47Z
status: cancelled 2022-04-26 12:25Z (archive)
cancels: HYDROPAC 43/22
authority: NAVAREA XI 35/22 251821Z JAN 22.
position: 3.657, 111.253
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
DNC 11.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 30 APR
   BY M/V RAMFORM SOVEREIGN TOWING 14 9500 METER
   LONG CABLES IN AREA BOUND BY
   04-52.3N 111-24.3E, 04-06.6N 111-20.6E,
   03-37.8N 111-53.3E, 02-57.6N 111-28.6E,
   03-09.3N 111-09.8E, 02-44.2N 110-53.7E,
   02-56.2N 110-35.2E, 03-41.6N 111-03.9E,
   04-52.4N 111-06.3E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 43/22.
3. CANCEL THIS MSG 01 MAY 22.

This area · survey operations

11 within 180 nm since 2006 · 0 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 further notice by M/V ramform sovereign towing 14 9500 meter long cables…cancels · 2022-01-06
Survey operations in progress until further notice by M/V ramform sovereign towing 14 9500 meter long cables…replaced · 2022-01-06
Cancel HYDROPAC 213/22 and this msg, operations completedcancelled by · 2022-04-26

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.