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This page will help you reading and understanding Croatian nautical maps.

Geodetic Datum

The Croatian Hydrographical Institute uses Hermanskogel datum (Bessel's Ellipsoid). It can be altered to WGS - 84 via the SATELLITE DERIVED POSITIONS which are clearly marked on its maps.

Lighthouses

As all sailors know, characteristics of lighthouses and light beacons are marked on the nautical maps as follows:

  A B (C) Ds Em FM

A describes the colour, B indicates the rhythm. C, when applicable, gives you the number of groups in a cycle. D is the cycle time in seconds, E indicates the height of the light above sea-level in meters (m). F, finally, indicates the visibility of the light in nautical miles (M). For colours and rhythms, the following codes are used on Croatian nautical maps.

A - Colour

Abbreviation English   Abbreviation Croatian
W White = B Bijelo
R Red = C Crveno
G Green = Z Zeleno
Y Yellow = Ž Žuto

B - Rhythm

Abbreviation English   Abbreviation Croatian
F Fixed = S Stalno 
Fl Flash = Bl  Bljeskovi 
Q Fl Quick Flash = B Bl  Brzi Bljeskovi 
S Fl Short Flash = K Bl  Kratki Bljeskovi 
L Fl Long Flash = D Bl  Dugi Bljeskovi 
Iso Isophase = Izo Izofase 
Occ Occulting = Pk Prekide 

If a lighthouse shows the abbreviation POT in a marked area, it means POTAMJENO. It is the Croatian word for ‘not visible’.

What do they mean: expressions on Croatian nautical maps

Below you find the full list from the Croatian Hydrographical Institute. Although I gave maximum effort to be complete and accurate, I cannot accept any responsibility for the accuracy and completeness of this list.

    Croatian English
  A    
AN    Avvissi ai Naviganti 'Notice to Mariners' in Italian (see also OZP)
  B    
B   Bijeli  White 
Bl    Bljesak Flash
  C    
C, c   Crveno, crvena  Red 
cb   crveno-bijelo  Red - White 
cr   crno  Black 
cr ž   crno-žuto Black - Yellow
cr ž cr    crno-žuto-crno Black - Yellow - Black
  D    
Dop    Dopuna Addition 
  E    
E   Istok  East 
EF   Elenco dei Fari 'List of Lights' in Italian
  H    
HHI    Hrvatski Hidrografski Institut Croatian Hydrografical Institute 
HR, hr   hrid Rock, Cliff
HRM   Hrvatska Ratna Mornarica Croatian Navy
  J    
J   Jezero Lake
  K    
k   kamen Stone / Rock (seabed)
K   Kratki Short
kab   kabel Cable
kor   Koralj Coral (seabed)
KAN   Kanal Channel, Strait
  L    
L   Luka  Harbour 
L. pl.   Lučki plan Harbour Plan
  M    
M, m   mulj Mud (seabed)
MK   Male Karte Small Map
  N    
N   Sjever, Sjeverni North
Nar   Narančasto Orange
NE   Sjeveroistok Northeast
NG   Nautički Godišnjak Nautical Almanac
NW   Sjeverozapad Northwest
  O    
O, Oi   Otok, Otoci Island, Islands
ORP   Obalna Radiopostaja Coastal Radio Station
OZP   Oglas Za Pomorc 'Notice to Mariners' - the well-known monthly corrections and additions to the nautical maps
  P    
p   pijesak Sand (seabed)
(P)   prethodni ispravak Preliminary correction
Pl   plutača Buoy
Pk   prekid, prekidno Pause
Plič   pličina, plićak Sandbank / shoal
Pm   Promjenljivo Changing / variable
Pol   Poluotok Peninsula
POT   Potamnjeno Not visible
prib   približna pozicija Estimated position
Pv   Plavo Blue
  R    
RC    Kružni Radiofar  
RG   Radiogoniometrijska Postaja Direction Finder
RNS   Radionavigacijska Služba  Radio Navigation Service
RO   Radio Oglas Radio Message
RS   Radioslužba Radio Service
  S    
S   jug, južni South
s   sekunda Second
sekt   sektor Sector
SE   jugoistok Southeast
sj   sjaj Clarity
SV, sv   sveti Holy / Saint
Svj pl   svjetleća plutača Light Beacon / Light Buoy
str   stranica Page / Side
SW   jugozapad Southwest
  Š    
š   šljunak Pebbles (seabed)
šk   školjke Mussels / Shells
  T    
(T)   privremeni ispravak Tijdelijke correctie
t   trava (on map) Sea Grass (seabed)
t   tona (in text) Tonne (weight)
toč   točka Point
  U    
U, u   Uvala Bay / Bight
  V    
V   Veliki, Veli  Large 
Vert    Vertikalan  Vertical 
Vid    Vidljivost Visibility 
VK    Vrlo Kratki Very Short
  W     
W   Zapad, Zapadni  West 
Wk   Podrtina (on map) Wreck
  Z    
Z   Zeleno Green
  Ž    
Ž   žuto Yellow
ž cr   žuto-crno Yellow - Black
ž cr ž   žuto-crno-žuto Yellow - Black - Yellow