Surveys

Survey operations 17 thru 21 mar by M/V walther herwig III in area between 14-30N 13-44N and 018-12W 017-10W

Eastern North Atlantic · Senegal · HYDROLANT 637/15

issued: 2015-03-16 06:34Z
status: cancelled 2015-03-22 00:01Z (archive)
authority: AVURNAV DAKAR 7/15 160413Z MAR 15.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
SENEGAL.
DNC 01.
1. SURVEY OPERATIONS 17 THRU 21 MAR BY
   M/V WALTHER HERWIG III IN AREA BETWEEN
   14-30N 13-44N AND 018-12W 017-10W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 22 MAR 15.

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Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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