Surveys

Survey operations in progress until 16 mar by M/V polarcus alima towing 12 8100 meter long cables along…

Western South Atlantic · HYDROLANT 845/17

issued
2017-03-15 20:54Z
status
cancelled 2017-03-17 00:01Z (archive)
cancels
HYDROLANT 824/17
authority
NAVAREA VI 168/17 152053Z MAR 17.
sea
South Atlantic Ocean
position
-35.804, -51.777
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01, DNC 07.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 16 MAR
   BY M/V POLARCUS ALIMA TOWING 12 8100 METER
   LONG CABLES ALONG TRACKLINES BETWEEN:
   A. 36-21.62S 051-30.75W AND 36-01.65S 052-23.77W.
   B. 36-01.65S 052-23.77W AND 35-20.95S 051-26.92W.
   C. 35-20.95S 051-26.92W AND 35-33.25S 051-07.93W.
   D. 35-38.35S 051-12.87W AND 35-26.03S 051-31.85W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 824/17.
3. CANCEL THIS MSG 17 MAR 17.

This area · survey operations

120 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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month of issue, all years in the archive

Timeline

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.