Surveys

Survey operations in progress until 12 oct by M/V geowave voyager towing six 250 meter long cables in area…

Western South Atlantic · Brazil-southeast Coast · HYDROLANT 3119/18

issued: 2018-10-04 01:18Z
status: cancelled 2018-10-13 00:01Z (archive)
cancels: HYDROLANT 3071/18
authority: NAVAREA V COASTAL E 737/18 040110Z OCT 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTHEAST COAST.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 12 OCT BY
   M/V GEOWAVE VOYAGER TOWING SIX 250 METER
   LONG CABLES IN AREA BETWEEN
   21-22S 21-06S AND 040-13W 039-40W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 3071/18.
3. CANCEL THIS MSG 13 OCT 18.

Timeline

Survey operations in progress until 04 oct by M/V geowave voyager towing six 250 meter long cables in area…cancels · 2018-09-29
Survey operations in progress until 04 oct by M/V geowave voyager towing six 250 meter long cables in area…replaced · 2018-09-29
Survey operations in progress until 19 oct by M/V geowave voyager towing six 250 meter long cables in area…cancelled by · 2018-10-12

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.