Surveys
Survey operations 09 may thru 30 sep by M/V ramform tethys towing 16 8100 meter long cables in area bound by…
Western South Atlantic · Brazil-east Coast · HYDROLANT 1437/18
- issued
- 2018-05-08 07:13Z
- status
- cancelled 2018-10-01 00:01Z (archive)
- authority
- NAVAREA V COASTAL E 352/18 080254Z MAY 18.
- position
- -11.151, -35.767
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-EAST COAST. DNC 01. 1. SURVEY OPERATIONS 09 MAY THRU 30 SEP BY M/V RAMFORM TETHYS TOWING 16 8100 METER LONG CABLES IN AREA BOUND BY 10-52.05S 035-08.36W, 11-10.44S 035-03.60W, 11-53.92S 035-41.84W, 11-30.75S 036-24.94W, 11-16.14S 036-10.35W, 10-52.06S 036-24.99W, 10-51.19S 036-23.93W, 10-49.33S 036-21.66W, 10-45.92S 036-20.23W, 10-44.81S 036-19.11W, 10-43.82S 036-16.61W, 10-41.19S 036-13.31W, 10-38.03S 036-09.29W, 10-36.54S 036-07.32W, 10-32.81S 036-03.71W, 10-29.61S 036-01.53W, 10-28.10S 036-00.46W, 10-26.47S 035-56.29W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 01 OCT 18.
This area · survey operations
36 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now
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- Survey operations 270500Z feb to 252100Z mar by M/V sable in area bound by 10-44.76S 036-33.13W, 10-44.53S…2020-02-27
- Underwater operations 160700Z to 161500Z sep by tug mar de espanha, M/V macau, M/V grauna and M/V nb…2019-09-15
- Underwater operations in progress until 150359Z feb 15 in area bound by 11-15.51S 036-59.70W, 11-14.58S…2014-08-21
- Hydrographic survey 09 thru 12 may by M/V sirius in area bound by 10-42S 036-27W, 10-31S 036-07W, 10-51S…2011-05-06
- Survey operations 131100Z to 151000Z oct by M/V albardao and M/V aracatuba in area bound by 08-09.1S…2010-10-11
- Survey operations 250600Z oct to 092100Z nov by M/V gyre in area bound by 10-07.07S 036-06.22W, 10-19.15S…2008-10-24
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Maceio light 09-41.03S 035-43.38W unlit until 31 octNav aids · 88.1 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.