Surveys

Survey operations in progress until 13 sep by M/V hesperides towing 6000 meter long cable along trackline…

HYDROLANT 2444/01

issued
2001-09-10 21:33Z
status
cancelled 2001-09-14 00:00Z (archive)
cancels
HYDROLANT 2422/01
authority
NAVAREA II 340/01 101939Z SEP 01
sea
North Atlantic Ocean
position
36.946, -10.050
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 13 SEP BY M/V HESPERIDES
   TOWING 6000 METER LONG CABLE ALONG TRACKLINE JOINING
   36-36N 010-18W, 37-08N 010-03W, 37-19N 009-44W, 37-17N 009-42W,
   37-07N 010-00W, 36-34N 010-15W, 36-33N 010-12W, 37-05N 009-57W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2422/01.
3. CANCEL THIS MSG 14 SEP.

This area · survey operations

74 within 180 nm since 1999 · 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.