Chart 1 : Symbols, Abbreviations and Terms

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International Abbreviations - Section W

Abbreviations

A Top of page
Accom Accommodation (or Support) vessel
Aero Aeronautical light P60P61.1
Aero RC Aeronautical
Radiobeacon
Sk
AIS Automatic Identification
System
S17
Al Alternating P10.11
ALC Articulated Loading Column L12
Am Amber P11.8
ASL Archipelagic Sea Lane M17
B Top of page
B Black Q2, Q81
bk Broken J33
Bn Beacon P4, P5,
Q80
BnTr Beacon tower P3, Q110
Bo Boulder(s) J9.2
Br Breakers K17
Bu Blue P11.4
C Top of page
c Coarse J32
ca Calcareous J38
CALM Catenary Anchor Leg
Mooring
L16
Cb Cobbles J8
cd Candela B54
CG Coastguard T10, T11
Ch Church E10.1
Chy Chimney E22
cm Centimetre(s) B43
Co Coral, Coralline algae J10, K16
Cy Clay J3
D Top of page
DG/DM Degaussing N25
DGPS Differential Global
Positioning System
S51
Dia Diaphone R11
Dir Direction P30, P31
dm Decimetre(s) B42
Dn, Dns Dolphin(s) F20
DW Deep Water M5.1,
M5.2,
M27.1,
N12.4
DWT Deadweight Tonnage
DZ Danger Zone Q50
E Top of page
E East B10
ED Existence doubtful I1
Explos Explosive R10
exting Extinguished P55
ESSA Environmentally
Sensitive Sea Area
N22
F Top of page
f Fine J30
F Fixed P10.1
FAD Fish Aggregating
Devices
FFl Fixed and Flashing P10.10
Fl Flashing P10.4
Fla Flare stack L11
Fog Det
Lt
Fog detector light P62
FPSO Floating Production, Storage and Offloading
FS Flagstaff, Flagpole E27
FSO Floating Storage and Offloading
FSU Floating Storage Unit
ft Foot/Feet B47
G Top of page
G Gravel J6
G Green P11.3, Q2
GPS Global Positioning
System
GRT Gross Register
Tonnage
GT Gross Tonnage
H Top of page
h Hard J39
h Hour B49
H Helicopter T1.4
Heliports (Helipads, if
charted, use same
symbol)
D18
hor Horizontally disposed P15
I Top of page
INT International A5, T21
Intens Intensified P46
IQ Interrupted quick P10.6
Iso Isophase P10.3
IUQ Interrupted ultra quick P10.8
IVQ Interrupted very quick P10.7
K Top of page
km Kilometre(s) B40
kn Knot(s) B52, N27
L Top of page
LANBY Large Automated
Navigational Buoy
P6
LASH Lighter Aboard Ship
Lat Latitude B1
Ldg Leading P20.3
LFl Long Flashing P10.5
Lndg Landing F17
LNG Liquefied Natural Gas
Long Longitude B2
LPG Liquefied Petroleum
Gas
Lt(s) Light(s) P1
M Top of page
m Medium J31
m Metre(s) B41
m Minute(s) of time B50
M Mud J2
M International Nautical
Mile(s) (1852 m) or sea
mile(s)
B45
min Minute(s) of time B50
Mk Mark Q101
mm Millimetre(s) B44
Mo Morse Code P10.9,
R20
Mon Monument E24
MR Marine Reserve N22
N Top of page
N North B9
NE Northeast B13
No Number N12.2
NT Net tonnage
NW Northwest B15
O Top of page
Obscd Obscured P43
Obstn Obstruction K40-K43,
L43
Oc Occulting P10.2
occas Occasional P50
ODAS Ocean Data Acquisition
System
Q58
Or Orange P11.7, Q3
P Top of page
P Pebbles J7
PA Position approximate B7
PD Position doubtful B8
priv Private P65, Q70
Prod Well Submerged production well L20
PSSA Particularly Sensitive Sea Area N22
Pyl Pylon D26
Q Top of page
Q Quick P10.6
R Top of page
R Coast radio station
providing QTG service
Sj
R Red P11.2, Q3
R Rock, rocky J9.1, K15
Ra Radar M31, M32, S1
Racon Radar transponder
beacon
S3.1-S3.6
RC Circular marine
radiobeacon
Si
Ref Refuge Q124, T14
Rep Reported, but not
confirmed
I3.1, I3.2
RoRo Roll-on, Roll-off Ferry
(RoRo Terminal)
F50
R Lts Air obstruction light P61.2
Ru Ruin D8, E25.2,
F33
S Top of page
S Sand J1
s Second(s) of time B51, P12
S South B11
SADO Ocean Data
Acquisition System
Q58
SALM Single Anchor Leg
Mooring
L12
SBM Single Buoy Mooring L16
SD Sounding doubtful I2
SE Southeast B14
sec Second(s) of time B51
sf Stiff J36
Sh Shells J11
Si Silt J4
Sig Signal T25.2
SMt Seamount O33(Number
taken from
German INT
1)
so Soft J35
Sp (Church) spire E10.3
SPM Single Point Mooring L12
SS Signal station T20-T31, T33-
T36
St Stones J5
SW Southwest B16
sy Sticky J34
T Top of page
t Tonne(s), Ton(s),
Tonnage (weight)
B53, F53
temp Temporary P54
Tr Tower E10.2,
E20
U Top of page
ULCC Ultra Large Crude
Carrier
UQ Ultra Quick P10.8
UTC Universal Time
Coordinated
UTM Universal Transverse
Mercator
V Top of page
v Volcanic J37
vert Vertically disposed P15
Vi Violet P11.5
VLCC Very Large Crude
Carrier
VQ Very quick P10.7
VTS Vessel Traffic Service
W Top of page
W West B12
W White P11.1,
Q130.5
Wd Weed J13.1
Well Wellhead L21
WGS World Geodetic System S50
Whis Whistle R15
Wk(s) Wreck(s) K20-K30
Y Top of page
Y Amber P11.8
Y Orange P11.7
Y Yellow P11.6, Q3
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