Surveys

Survey operations 14 thru 28 aug by M/V professor vodyanitsky in area bound by 45-09N 033-16E, 44-45N…

Black Sea · HYDROLANT 2094/21

What this record establishes

Archived notice · 2021-08-29 00:01Z

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 634/21 121237Z AUG 21.. Issued 2021-08-12 13:38Z. 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
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
2021-08-12 13:38Z
status
Archived notice
authority
NAVAREA III 634/21 121237Z AUG 21.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Black Sea
position
44.061, 35.624
vessel
M/V PROFESSOR VODYANITSKY · 2 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BLACK SEA.
UKRAINE.
DNC 10.
1. SURVEY OPERATIONS 14 THRU 28 AUG BY
   M/V PROFESSOR VODYANITSKY IN AREA BOUND BY
   45-09N 033-16E, 44-45N 031-33E,
   43-20N 032-18E, 43-23N 034-01E,
   43-30N 036-25E, 42-32N 038-52E,
   43-23N 040-06E, 45-08N 036-38E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 29 AUG 21.

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.

All warning terms →

Collected reports in this area · survey operations

100 within 180 nm since 2002 · 3 in the last 12 months · 0 listed in force now

02
05
10
15
20
25
26

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

J
F
M
A
M
J
J
A
S
O
N
D

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

55 survey operations listed in force · see all

Record snapshot 2026-09-25 22:09Z; 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.