Surveys
Underwater operations in progress until 31 jul 20 by M/V derinsu in area bound by 40-25.78N 027-04.67E,…
Sea of Marmara · HYDROLANT 3341/19
- issued
- 2019-10-31 20:03Z
- status
- cancelled 2019-11-05 12:06Z (archive)
- authority
- NAVAREA III 1261/19 311850Z OCT 19.
- sea
- Sea of Marmara
- position
- 40.490, 27.019
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
SEA OF MARMARA. DNC 09, DNC 10. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 31 JUL 20 BY M/V DERINSU IN AREA BOUND BY 40-25.78N 027-04.67E, 40-31.42N 026-56.87E, 40-32.77N 026-56.47E, 40-33.25N 026-58.20E, 40-32.00N 026-58.73E, 40-26.58N 027-06.42E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 01 AUG 20.
This area · survey operations
127 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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- Survey operations in progress until 14 jun by M/V tcg cesme in areas bound by a. 38-55.93N 025-24.97E,…2022-05-28
- Survey operations in progress until 172059Z may by M/V oceanic vega, M/V mainport pine and M/V aquarius-g in…2021-04-08
- Survey operations 23 mar thru 15 apr by M/V tubitak marmara and M/V tubitak mam in area bound by 40-03.20N…2021-03-22
- Survey operations 18 feb thru 02 mar by M/V tcg cesme in area bound by 40-00.94N 024-52.91E, 39-40.83N…2021-02-16
- Underwater operations in progress until 19 nov by M/V aegaeo a. 15 nov in 39-53.48N 025-15.05E2020-11-15
- Survey operations in progress until 18 nov by M/V aegaeo a. 13 nov in area bound by 40-36.42N 022-54.25E,…2020-11-13
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 3341/19 and this msgcancelled by · 2019-11-05
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
86 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.