Surveys
Hydrographic survey by M/V thalassa: a. 29 jun along trackline between 58-32N 031-25W and 56-51N 033-29W
North Atlantic · NAVAREA IV 521/15
- issued
- 2015-06-29 17:14Z
- status
- cancelled 2015-06-30 14:06Z (archive)
- cancels
- NAVAREA IV 518/15
- authority
- THALASSA 291135Z JUN 15.
- position
- 56.736, -33.408
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
NORTH ATLANTIC.
1. HYDROGRAPHIC SURVEY BY M/V THALASSA:
A. 29 JUN ALONG TRACKLINE BETWEEN
58-32N 031-25W AND 56-51N 033-29W.
B. 30 JUN ALONG TRACKLINE BETWEEN
56-51N 033-29W AND 56-24N 034-01W.
C. 01 JUL ALONG TRACKLINE BETWEEN
56-24N 034-01W AND 54-39N 035-04W.
WIDE BERTH REQUESTED.
2. CANCEL NAVAREA IV 518/15.
3. CANCEL THIS MSG 02 JUL 15.
This area · survey operations
11 within 180 nm since 2015 · 0 in the last 12 months · 0 in force now
15
20
21
- Survey operations 030001Z to 050001Z jul by M/V sarmiento de gamboa in area bound by 57-18.3N 035-22.1W,…2021-07-01
- Hydrographic survey by M/V thalassa: a. 01 jul along trackline between 56-24N 034-01W and 55-48N 034-49W2015-07-01
- Hydrographic survey by M/V thalassa: a. 30 jun along trackline between 56-51N 033-29W and 56-24N 034-01W2015-06-30
- Hydrographic survey by M/V thalassa: a. 28 jun along trackline between 58-59N 032-10W and 58-46N 030-38W2015-06-28
- Hydrographic survey by M/V thalassa: a. 17 jun vicinity of 58-50N 031-14W2015-06-17
- Hydrographic survey by M/V thalassa: a. 16 jun along trackline between 59-20N 036-25W and 58-50N 031-14W2015-06-16
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Hydrographic survey by M/V thalassa: a. 28 jun along trackline between 58-59N 032-10W and 58-46N 030-38Wcancels · 2015-06-28
- Hydrographic survey by M/V thalassa: a. 28 jun along trackline between 58-59N 032-10W and 58-46N 030-38Wreplaced · 2015-06-28
- Hydrographic survey by M/V thalassa: a. 30 jun along trackline between 56-51N 033-29W and 56-24N 034-01Wcancelled by · 2015-06-30
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
73 survey operations in force · see all
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.