Surveys

Hydrographic surveys by M/V geo surveyor: a. 132259Z to 141100Z nov in area bound by 41-51.727N 001-01.705E,…

HYDROLANT 3829/00

issued
2000-11-13 21:57Z
status
cancelled 2000-11-14 03:15Z (archive)
self-cancels
2000-11-16 12:00Z
cancels
HYDROLANT 3827/00
authority
MARDIPART LA SPEZIA #356/00 131632Z NOV 00
sea
Mediterranean Sea - Western Basin
position
41.752, 8.525
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROGRAPHIC SURVEYS BY M/V GEO SURVEYOR:
   A. 132259Z TO 141100Z NOV IN AREA BOUND BY
      41-51.727N 001-01.705E, 41-40.516N 012-12.632E,
      41-40.531N 012-13.556E, 41-40.694N 012-14.543E,
      41-41.014N 012-15.387E, 41-41.339N 012-15.908E,
      41-43.143N 012-18.182E.
   B. 141101Z TO 161100Z NOV ALONG TRACKLINE JOINING
      41-16.940N 012-04.800E, 41-21.719N 012-05.762E,
      41-30.000N 012-12.000E, 41-38.100N 012-16.240E,
      41-42.215N 012-20.390E.
2. CANCEL HYDROLANT 3827/00.
3. CANCEL THIS MSG 161200Z NOV.

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
2000-11-13 22:59Z2000-11-14 11:00Z12 h 01
2000-11-14 11:01Z2000-11-16 11:00Z47 h 59

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · survey operations

235 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

98
00
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24

Season · when survey operations happen here

J
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A
M
J
J
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

86 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.