Surveys

Survey operations by three vessels in the Black Sea off Turkey from January 1 to September 8, 2026, in a bounded area. Five mile berth requested.

Black Sea · HYDROLANT 2243/25

What this record establishes

Cancelled notice · 2026-09-11 16:15Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates: NGA MSI in-force warnings (DailyMem*.txt). Issued 2025-12-30 18:43Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-09-09 18:17Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Black Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Black Sea →

issued: 2025-12-30 18:43Z
status: Cancelled notice
self-cancels: 2026-09-09 00:01Z
sea: Black Sea
position: 42.786, 32.552
vessels: M/V BARBAROS HAYREDDIN PASA · 56 messages M/V KARADENIZ ARASTIRMA · 3 messages M/V TANUX-1 · 25 messages
nearest port: Sevastopol · 118 nm
source: NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z

Original warning text

BLACK SEA.
TURKEY.
DNC 10.
1. SURVEY OPERATIONS 01 JAN THRU 08 SEP 26
   BY M/V KARADENIZ ARASTIRMA,
   M/V BARBAROS HAYREDDIN PASA,
   AND M/V TANUX-1 IN AREA BOUND BY
   42-20.65N 031-59.85E, 42-20.73N 033-14.63E,
   42-42.03N 033-14.72E, 43-16.32N 032-46.77E,
   43-20.30N 031-59.70E.
   FIVE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 090001Z SEP 26.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Survey operations: A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Area bound by: Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Wide berth requested: Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · survey operations

185 within 180 nm since 1999 · 13 in the last 12 months · 6 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

1- drilling operations by abdulhamid han rig (imo 9705093Surveys · 43.5 nm
Drilling operations by the kanuni platform (imo 9541203Surveys · 53 nm
1- drilling operations by yildirim rig (imo 9705469, mmsi 271053959), supported by ertugrul bey, aybuke,…Surveys · 56.1 nm
Pipeline operations 05 jun thru 07 oct by M/V oruc reis, M/V mukavemet, M/V zaganos pasa, M/V denar…Cable ops · 57.1 nm
Pipeline operations in progress until 07 oct 26 by M/V mukavemet, M/V oruc rei̇s, M/V dina polaris, M/V…Cable ops · 57.5 nm
Drilling operations by yavuz rig (imo 9503768, mmsi 271046765) supported by osman bey, aybuke, florya,…Surveys · 60.7 nm
Underwater operations 05 jan 25 thru 31 dec 26 in area bound by 44-04.40N 030-34.13E, 44-02.40N 030-30.50E,…Surveys · 107.7 nm
Drilling operations by fatih platform (imo 9503770Surveys · 110.6 nm
1- neptun alpha production platform has been established at the central coordinate point: 44-02.85N 030-35.25EStructures · 114.3 nm

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-02 16:43Z; source collection times vary.

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.