Surveys

Survey operations in progress until 11 jan by M/V geo caribbean towing ten 12000 meter long cables in area…

Western South Atlantic · Brazil-southeast Coast · HYDROLANT 36/20

issued: 2020-01-04 14:21Z
status: cancelled 2020-01-12 00:01Z (archive)
cancels: HYDROLANT 3986/19
authority: NAVAREA V 6/20 041406Z JAN 20.
sea: South Atlantic Ocean
position: -25.011, -39.716
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 11 JAN
   BY M/V GEO CARIBBEAN TOWING TEN 12000 METER
   LONG CABLES IN AREA BOUND BY
   22-43.80S 038-26.43W, 22-43.18S 037-09.05W,
   26-25.95S 037-35.27W, 26-27.40S 040-18.30W,
   26-40.50S 043-14.20W, 25-47.93S 042-37.12W,
   25-19.13S 042-08.30W, 24-49.78S 042-07.50W,
   24-21.62S 042-21.32W, 24-22.07S 042-03.72W,
   24-06.77S 042-03.45W, 23-46.95S 041-21.52W,
   23-59.93S 040-57.95W, 24-00.42S 039-14.72W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 3986/19.
3. CANCEL THIS MSG 12 JAN 20.

This area · survey operations

576 within 180 nm since 2000 · 7 in the last 12 months · 5 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations in progress until 04 jan 20 by M/V geo caribbean towing ten 13000 meter long cables in…cancels · 2019-12-28
Survey operations in progress until 04 jan 20 by M/V geo caribbean towing ten 13000 meter long cables in…replaced · 2019-12-28

Nearby now · within 120 nm

Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00WExercises · 81.8 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.