Survey operations 07 apr thru 15 jul by M/V oruc reis, M/V ataman and M/V cengiz han in area bound by…
Sea of Marmara · HYDROLANT 1086/19
What this record establishes
Archived notice · 2019-04-11 13:37Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · TURKEY 60/19 052212Z APR 19.. Issued 2019-04-05 22:37Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Sea of Marmara. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the Sea of Marmara →
- issued
- 2019-04-05 22:37Z
- status
- Archived notice
- authority
- TURKEY 60/19 052212Z APR 19.
- issued by
- TURKEY
- sea
- Sea of Marmara
- position
- 40.667, 28.152
- vessels
- M/V ATAMAN · 27 messagesM/V CENGIZ HAN · 5 messagesM/V ORUC REIS · 22 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF MARMARA. TURKEY. DNC 10. 1. SURVEY OPERATIONS 07 APR THRU 15 JUL BY M/V ORUC REIS, M/V ATAMAN AND M/V CENGIZ HAN IN AREA BOUND BY 40-31.12N 028-26.97E, 40-36.94N 028-26.97E, 40-36.93N 028-29.05E, 40-47.83N 028-29.32E, 40-46.25N 027-44.48E, 40-38.93N 027-44.40E, 40-34.92N 028-00.10E, 40-31.42N 028-00.03E. SIX MILE BERTH REQUESTED. 2. CANCEL THIS MSG 16 JUL 19.
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.
Collected reports in this area · survey operations
116 within 180 nm since 1999 · 1 in the last 12 months · 1 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.
- Drilling operations by fatih platform (imo 95037702026-09-03
- 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 29 apr by M/V tcg cubuklu in area bound by 41-29.55N 030-19.39E,…2021-04-13
- 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
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-09-28 16:39Z; 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.