Survey operations 21 aug thru 31 aug by M/V sarmiento de gamboa in area bound by 39-34.4N 002-18.2E,…
Mediterranean Sea - Western Basin · HYDROLANT 2574/20
What this record establishes
Archived notice · 2020-08-20 12:04Z
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 1137/20 200001Z AUG 20.. Issued 2020-08-20 00:59Z. 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 - Western 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
- Cancel HYDROLANT 2574/20 and this msglater cancellation notice
Current notices and reporting history in the Mediterranean Sea - Western Basin →
- issued
- 2020-08-20 00:59Z
- status
- Archived notice
- authority
- NAVAREA III 1137/20 200001Z AUG 20.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Mediterranean Sea - Western Basin
- position
- 38.891, 5.071
- vessel
- M/V SARMIENTO DE GAMBOA · 67 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN MEDITERRANEAN SEA. BALEARIC ISLANDS. DNC 08. 1. SURVEY OPERATIONS 21 AUG THRU 31 AUG BY M/V SARMIENTO DE GAMBOA IN AREA BOUND BY 39-34.4N 002-18.2E, 39-07.7N 002-55.2E, 39-02.0N 001-39.0E, 38-28.3N 002-35.6E, 38-39.8N 010-35.1E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 01 SEP 20.
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
69 within 180 nm since 1999 · 0 in the last 12 months · 0 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.
- Survey operations in progress until 30 oct by vessel anteos in 39-19.79N 007-50.60E2024-09-03
- Survey operations in progress until 30 jun by M/V ng driller along trackline joining 39-13.99N 007-49.47E,…2024-04-24
- Survey operations in progress until 30 aug by M/V durable along trackline joining 41-22.68N 006-04.83E,…2024-04-24
- Survey operations in progress until 15 apr by M/V ng driller in: a. 39-13.99N 007-49.48E2024-02-01
- Survey operations in progress until 111700Z apr by M/V tethys II in vicinity of trackline joining 41-22.0N…2023-04-09
- Survey operations in progress until 111800Z apr by M/V tethys II in vicinity of trackline joining 40-07.0N…2023-04-09
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
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 03:57Z; 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.