Survey operations in progress until 03 apr by M/V maria s. merian: a. in area bound by 34-16.0N 030-00.0E,…
Mediterranean Sea - Eastern Basin · HYDROLANT 788/18
What this record establishes
Archived notice · 2018-03-08 09:53Z
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) · NAVAREA III 218/18 051802Z MAR 18.. Issued 2018-03-05 18:07Z. 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
- Mediterranean Sea - Eastern Basin. 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 Mediterranean Sea - Eastern Basin →
- issued
- 2018-03-05 18:07Z
- status
- Archived notice
- authority
- NAVAREA III 218/18 051802Z MAR 18.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Mediterranean Sea - Eastern Basin
- position
- 34.029, 33.188
- vessel
- M/V MARIA S MERIAN · 25 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN MEDITERRANEAN SEA.
CYPRUS.
CRETE.
DNC 09, DNC 10.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 03 APR BY
M/V MARIA S. MERIAN:
A. IN AREA BOUND BY
34-16.0N 030-00.0E, 34-10.0N 034-00.0E,
33-54.0N 034-00.0E, 34-00.0N 030-00.0E.
B. IN AREA BOUND BY
34-31.4N 026-04.5E, 34-07.1N 032-22.6E,
33-53.3N 032-22.4E, 34-17.5N 026-04.3E.
C. IN VICINITY OF TRACKLINE JOINING
34-58.1N 026-16.5E, 34-48.2N 026-10.0E,
32-22.0N 025-57.5E, 34-16.0N 025-37.5E,
34-14.5N 025-18.0E.
WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 744/18.
3. CANCEL THIS MSG 04 APR 18.
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.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
- 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
207 within 180 nm since 2000 · 5 in the last 12 months · 2 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.
- Underwater operations in progress until 25 oct by M/V denar echo, M/V oruc reis, M/V kirici and M/V denar…2026-10-02
- Underwater operations in progress until 25 oct by M/V denar echo, M/V denar pathfinder and M/V harvest chief…2026-10-01
- Scientific research and underwater operations by vessels r/v harvest chief, denar pathfinder, denar echo and…2026-10-01
- Scientific research and underwater operations by vessels r/v oruc reis, denar pathfinder, denar echo and…2026-10-01
- Underwater operations 01 thru 25 oct by M/V oruc reis, M/V denar echo, M/V kirici and M/V denar pathfinder…2026-09-30
- Survey operations 270001Z dec until further notice by M/V ramform titan in area bound by 33-38.90N…2023-12-25
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
- Odas buoy 33-33.41N 031-55.09E reported missingNav aids · 69.4 nm
- Scientific research and underwater operations by vessels r/v oruc reis, denar pathfinder, denar echo and…Surveys · 105.5 nm
- Underwater operations in progress until 25 oct by M/V denar echo, M/V oruc reis, M/V kirici and M/V denar…Surveys · 105.5 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 03:51Z; 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.