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Symbols and abbreviations used on ENCs
International chart 1 for ECDIS
Author: Wil lem Amels
Published by: Datema Nautical Information Services BV
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Overview scale ENC
Coastal Scale ENC
Approach Scale ENC
Approach scale ENC (Zoomed in)
Harbour scale ENC
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1. Information about the
chart display
Cartographic SymbolOne Mile Scalebar For
Display Scales Larger Than1/80.000
Cartographic SymbolOne Mile Scalebar ForDisplay Scales Smaller Than1/80.000
Cartographic SymbolNorth Arrow
Cartographic SymbolDepth Unit At Ships PositionIs Meters
Cartographic Symbol
Depth Unit At Ships PositionIs Fathoms
Cartographic SymbolOrdinary Cursor
Cartographic Symbol
Cursor With Open Centre
Cartographic SymbolReference Point, Ghost
Cursor(User Interface)
Magnetic VariationValues Unknown
Local Magnetic AnomalyValues Unknown
Cartographic SymbolThis Object Has AdditionalInformation, Available ByCursor Query
Cartographic SymbolCaution Area
Cartographic SymbolInformation Note
Cartographic Symbol
Mariners Caution Note
Cartographic SymbolMariners Information Note
Cartographic Symbol
Manufacturers Caution Note
Cartographic SymbolManufacturers InformationNoteCartographic Symbol
Point Feature Or Area OfLow Accuracy
Cartographic SymbolObject Which Is NotSufficiently Described To Be
Symbolized
Cartographic LineChange Of Depth Unit Line,Bounds Metre Depths
Buoy, Safe Water. Spherical
Cartographic LineThis Line Has Been
Manually Updated
Cartographic LineThis Line Has Been Deleted
By A Manual Update
Cartographic SymbolsExample OfUpdating/Deleting ChartItems
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Cartographic LineBoundary Marking End Of HO Data
Un-surveyed Area
Partly Surveyed Area
Cartographic AreaSymbolization Code: Overscale Part Of A Display,
Containing Data From MoreThan One Naviga..
Cartographic Area
Symbolization Code: Pattern Of Symbols For An .Area Which Is Not SufficientlyDescribed To Be..
Cartographic LineSymbolization Code: Object Which Is Not
Sufficiently Described To BeSymbolized. Or For which..
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1. Buoys and Beacons
Buoy, Lateral, ShapeConical, Colour Green
Buoy, Lateral, ShapeConical, Colour Red
Buoy, Lateral, Shape CanCylindrical, Colour Green
Buoy, Lateral, Shape CanCylindrical, Colour Red
Buoy, Cardinal, Pillar,North Cardinal Mark
Buoy, Cardinal, Pillar, EastCardinal Mark
Buoy, Cardinal, Pillar,South Cardinal Mark
Buoy, Cardinal, Pillar,
West Cardinal Mark
Buoy, Pillar, IsolatedDanger
Buoy, Safe Water,
Spherical
Buoy, SpecialPurpose/General,Barrel(Tun)
Buoy, SpecialPurpose/General,
Conical(Nun, Ogival)Category of SpecialPurpose: TSS Mark
Buoy, SpecialPurpose/General,Can(Cylindrical)Category of SpecialPurpose: TSS Mark
Light Float
Light Vessel
Mooring/Warping FacilityCategory ofMooring/Warping: MooringBuoyBuoy, Specialpurpose/GeneralCategory of Buoy: SuperBuoy
Buoy, SpecialPurpose/General
Category of Buoy:
Mooring/Warping Facility.Buoy Shape: SphericalCategory ofMooring/Warping: MooringBuoyMooring/Warping Facility.Buoy Shape: Barrel(Tun)
Category ofMooring/Warping: MooringBuoy
Buoy, InstallationBuoy shape :
Boundary between IALA-Aand IALA-B system oflateral buoys and beacons
Symbol showing directionof buoyage where notobvious
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Symbol showing directionof buoyage, where notobvious, on multicolouredcharts(red and greencircles coloured asappropriate).
Buoy Lateral Shape:Conical (nun, ogival)Colour: green red green
Buoy Lateral, Shape:cylindrical
Colour: red green red
Buoy Cardinal, Shape:
Pillar, North Cardinal Mark
Buoy Cardinal, Shape:Pillar, South Cardinal Mark
Buoy Cardinal, Shape:Spar(Spindle), EastCardinal Mark
Buoy Cardinal, Shape:Spar(Spindle), WestCardinal Mark
Buoy Isolated Danger,Shape: Pillar
Buoy Safe Water, Shape:Spherical
Buoy SpecialPurpose/general,Shape: Spar(spindle)
Buoy Lateral, Shape:Spar(spindle)
Beacon Lateral, Shape:
Beacon TowerColour: Red Green Red
Beacon Lateral, Shape:Beacon Tower
Colour: Green Red Green
Beacon Lateral, Shape:Stake, Pool, Perch, Post,Colour: Red
Beacon Lateral, Shape:
Stake, Pool, Perch, PostColour: Green
Beacon Lateral, Shape :With y
Category:Port-hand Lateral Mark
Colour :
Red
Beacon Lateral, Shape :Withy
Category:Starb-hand Lat. Mark
Colour :Green
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Beacon, Cardinal, Shape: Lattice Beacon
Category: North CardinalMark
Beacon, Cardinal, Shape: Beacon Tower
Category: East CardinalMark
Beacon, Cardinal, Shape: Pile Beacon
Category: South CardinalMark
Beacon, Cardinal, Shape
: Pile Beacon
Category : West CardinalMark
Beacon, Isolated Danger,Shape : Pile Beacon
Beacon, Safe Water,Shape : Pile Beacon
Beacon, Safe Water,
Shape : Beacon Tower
Beacon, SpecialPurpose/General
Shape : Pile Beacon
Beacon, SpecialPurpose/GeneralShape : Stake, Pool,Perch, Post
Beacon Lateral
Beacon, SpecialPurpose/GeneralShape : Pile Beacon
Beacon, SpecialPurpose/GeneralShape : Pile Beacon
Beacon, SpecialPurpose/General
Shape : Pile Beacon
Beacon, SpecialPurpose/General
Shape: ..Category of specialpurpose :Notice MarkBeacon, Special
Purpose/GeneralShape :Cairn
Beacon, SpecialPurpose/GeneralShape : CairnVisually conspicuous
Daymark
DaymarkMagenta, Triangle, Pointup
DaymarkMagenta, Triangle, Pointdown
NOTE: -The Centre Of TheSymbol Marks ThePosition OfSimplified Buoys And
Beacons- When Only One ExampleOf A Coloured Mark Is
Given, It Is That For IALA
Region A(Red ToPort).The Colour Would Be
Reversed For IALARegion B.
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Shore Features and Ports
Offshore Platform
Land Area
Built up Area
Airport/Airfield
Production/Storage Area
Quarry
Cartography Symbol
General Symbol for a Tree
Cartography Symbol -Mangrove
Landmark Spire/Minaret
Building/Single-LightSupport
Control Point- ScaleMinimum 75000
Landmark,
Category: Tower, Not
Visually Conspicuous
Silo/Tank
Category: Water Tower
Silo/Tank
Category: Water Tower,visually conspicuous
Landmark
Category: Tower, Visually
Conspicuous
Landmark
Category: Mast, Not
Visually Conspicuous
Landmark
Category: Mast, VisuallyConspicuous
Landmark
Category: Monument, NotVisually Conspicuous
Landmark
Category: Monument,Visually Conspicuous
Landmark
Category: Flare Stack, NotVisually Conspicuous
Landmark
Category: Flare Stack,Visually Conspicuous
Landmark
Category: Chimney, NotVisually Conspicuous
Landmark
Category: Chimney,Visually Conspicuous
Landmark
Category; Windmotor, NotVisually Conspicuous
Landmark
Category: Windmotor,Visually Conspicuous
Landmark
Category: Windmill,Visually Conspicuous
Landmark
Category: Windmill, NotVisually Conspicuous
Landmark
Category:Flagstaff(Flagpole),Visually Conspicuous
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Landmark
Category: Dome, Not
Visually Conspicuous
Landmark
Category: VisuallyConspicuous
Fortified Structure
Fortified Structure, Visuallyconspicuous
Building, Single
Building, Single, VisuallyConspicuous
Building, Single
Function: Church
Building, Single
Function: Church, VisuallyConspicuous
Building, Single
Function: Temple
Building, Single
Function: Temple, VisuallyConspicuous
Building, Single
Function: Mosque
Building, Single
Function: Mosque, VisuallyConspicuous
Building, SingleFunction: Cooling
Building, Single
Function: Cooling, Visually
Conspicuous
Silo/Tank
Silo in General
Silo/Tank
Silo in General, Visually
Conspicuous
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Cartographic Symbol
Quarry
Cartographic Symbol
Refinery
Cartographic Symbol
Conspicuous Refinery
Cartographic Symbol
Tank Farm
Cartographic Symbol
Conspicuous Tank Farm
Cartographic Symbol
Wind Generator Farm
Cartographic Symbol
Conspicuous WindGenerator Farm
Landmark
Category: Radar Scanner,
Not Visually conspicuous
Landmark
Category: Radar Scanner,Visually Conspicuous
Hulk
Gate
Category: Lock Gate,Value Unknown
Gate
Category: Caisson, ValueUnknown
Cartographic Symbol
Symbol For OpeningBridges
Mooring/Warping Facility
Category: Dolphin
Mooring/Warping Facility
Category: DeviationDolphin
Cartographic Symbol
Obstruction In The Water,
Which Is Always AboveWater Level
Mooring/Warping Facility
Category: Bollard
Berth
Crane
Cartographic Symbol
Timber Yard
Distance Mark
Distance Mark, NotPhysically Installed
Harbour Facility
Category: Fishing Harbour
Harbour Facility
Category: Yacht
Harbour/Marina
Radar Reflector
Bridge
Vertical Clearance: UnknownVertical Clearance open
: UnknownVertical Clearance closed: Unknown
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Cable, Overhead, Value
Unknown
Pipeline Overhead, Value
Unknown
Bridge, Large. CategoryUnknown, Values Unknown
Bridge, Small. CategoryOpening, Values UnknownConveyor, Large. ValuesUnknownConveyor, Small. ValuesUnknownPipeline Overhead. Values
UnknownCable Overhead. Category:Power line, RadarConspicuous, ValueUnknownCable Overhead Pylon.
Category: PowerTransmission Pylon/Pole.
Vegetation: Mangroves
Coastline : Mangroves
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Depth and Currents
Depth Area. Depth RangeValue 1 -1.000
Depth Range
Value 2 0.000
Depth Area. Depth RangeValue 1 5.000
Value 2 10.000
Depth Area. Depth Range
Value 1 30.000
Value 2 100.000
Obstruction, Value ofSounding 8.000
Water Level
Effect Always Under
Water/Submerged
Depth Area. Depth RangeValue 1 -1.000
Value 2 0.000
Depth Area. Depth RangeValue 1 0.000
Value 2 5.000
Depth Area. Depth RangeValue 1 5.000
Value 2 10.000
Depth Area. Depth RangeValue 1 10.000
Value 2 30.000
Depth Area. Depth RangeValue 1 30.000
Value 2 100.000
Swept Area
Depth Range Value 1Unknown
Quality of Data
Zone of Confidence A 1
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Quality of Data
Zone of Confidence E
Dredged AreaDepth Range Value 1
50.000Value 2
100.000
Quality of Data
Zone of Confidence B
Quality of Data
Zone of Confidence C
Quality of Data
Zone of Confidence U(DataNot Assessed)
Cartographic Area
Symbolization Code :
Diamond 1
Depth Less Than DepthSetting
Depth Larger Than DepthSetting
Drying Height Above Chartdatum
Depth, at Chart Datum,Swept by Wire Drag
Exposition of Sounding,Within the Range Of DepthOf The Surrounding Depth
Area
Water Turbulence
Tide- Harmonic Prediction
Method of Tidal Prediction-
Simplified harmonic
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Tidal Stream Panel Data
Tidal Stream Panel Value
Tidal Stream, Flood/Ebb
Current Velocity - ValueunknownCategory of Stream - EbbStream
Tidal Stream, Flood/Ebb
Current Velocity - Value
UnknownCategory of Stream -Flood Stream
Current-Non-GravitationalCurrent Velocity Value
Unknown
1. Seabed, obstructions and pipelines
CartographicSymbol
Symbolization Code
Isolated DangerOf Depth
Less Than TheSafety
Contour
CartographicSymbol
Symbolization Code UnderwaterHazard With A
Defined Depth
CartographicSymbol
Symbolization Code UnderwaterHazard with
Depth Greater Than20 mtrs
Cartographic
Symbol
Symbolization Code Underwater
Hazard, Which
Covers and
Uncovers
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Cartographic
Symbol
Symbolization Code Obstruction,Depth Not
Stated
CartographicSymbol
Symbolization Code Obstruction in theIntertidal
Area
Cartographic
Symbol
Symbolization Code Obstruction WhichCovers
And Uncovers
Obstruction
Category OfObstruction Foul
Ground
CartographicSymbol
Symbolization Code DangerousUnderwater Rock
Of Uncertain Depth
CartographicSymbol
Symbolization Code Rock WhichCovers And
Uncovers, Or IsAwash At
Low Water
CartographicSymbol
Symbolization Code Wreck ShowingAny Portion
Of Hull OrSuperstructure
At Level Of Chartdata
CartographicSymbol
Symbolization Code Non DangerousWreck,
Depth Unknown
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Cartographic
Symbol
Symbolization Code Dangerous Wreck,Depth Unknown
Anchorage Area
Offshore Platform
Fishing Facility
Category FishingStake
Fishing Facility
Category FishingTrap
MarineFarm/Culture
Sand Waves
Spring
Weed/Kelp
Pipeline,
Submarine/On Land
Pipeline,Submarine/On Land
Product - Water
Cable, submarine
Cartographic Line
Symbol Code -Obstruction
Cartographic Line
Symbol Code -Danger
Cartographic Line
Symbol Code -Danger Line of Low
Accuracy,
Surrounding a FoulArea
Obstruction
Category ofObstruction Foul
Area
Value of Sounding- Value UnknownWater Level Effect- Always
Underwater/
/Submerged
Obstruction
Value Unknown
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Sand Waves
Seabed Area
Nature of Surface- RockWater Level Effect- Covers andUncovers
Fishing Facility
Category of FishingFacility Tunny Net
Cable Area
Pipeline Area
Information
Danger
Pipeline Area
Category ofPipeline/Pipe Outfall Pipe
Information- Danger
2. Routes
Precaution Area
Info - Precaution Area
Radio Calling-In Point
Traffic Flow: One-way
Radio Calling-In Point
Traff ic Flow: Two-way
Radio Calling-In PointTraffic Flow: ..
Category Symbol
Symbol Code:Recommended Two-Way Track In
AnArea, Not Based OnFixed
Marks
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Category Symbol
Symbol Code:
Recommended Two-Way Track In
An
Area, Based On FixedMarks
Category Symbol
Symbol Code:
Recommended One-Way Track In
AnArea, Not Based OnFixed
Marks
Category Symbol
Symbol Code:Recommended One-
Way Track InAn
Area, Based on FixedMarks
Category Symbol
Symbol Code:Recommended TrackIn An Area
Direction Not DefinedIn Data
Ferry Route
Category of Ferry:Free-Moving Ferry
Ferry Route
Category of Ferry:Cable Ferry
Deepwater RouteCentreline
Category: Not BasedOn A System Of FixedMarksTraffic Flow: Two-way
Deepwater RouteCentreline
Category: Based On ASystem Of FixedMarksTraffic Flow: Two-Way
Deepwater RouteCentreline
Category: Not BasedOn A System Of FixedMarks
Traffic Flow: One-way
Deepwater Route
Centreline
Category: Based On ASystem Of FixedMarks
Deepwater RouteCentreline
Value Unknown
Recommended RouteCentreline
Category: Not BasedOn A System Of FixedMarks
Two-way
Recommended RouteCentreline
Category: Based On ASystem Of FixedMarks
Two-way
Recommended RouteCentreline
Category: Not BasedOn A System of FixedMarks
One-way
Recommended Route
CentrelineCategory: Based On ASystem Of FixedMarks
One-way
Recommended RouteCentreline
Category:
Recommended Track
Category: Not BasedOn A System Of FixedMarks
Two-way
Recommended Track
Category: Based On ASystem Of FixedMarks
Two-way
Recommended Track
Category: Not BasedOn A System Of FixedMarks
One-way
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Recommended Track
Category: Based on A
System Of FixedMarks
One-way
Recommended Track
Category: .
Traffic Separationndary
Fishing ProhibitedAnchoring Prohibited
Deepwater Route
Entry Prohibited
Traffic Separation
Scheme Roundabout
Traffic SeparationScheme Crossing
Precautionary Area
Recommended TrackPart
Deepwater Route Part,Entry Prohibited
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Inshore Traffic Zone
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Special Areas
TextualDescription:
Caution Area
TextualDescription
Restricted AreaCategory:Offshore SafetyZone
Textual
DescriptionPrecautionary
Area
Restricted AreaEntryProhibited
Restricted AreaAnchorageArea
Restricted AreaAnchorageProhibited
Restricted AreaFishingProhibited
CargoTranshipment
Area
Ferry Route
Anchor Berth
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Other CautionsApply InAddition ToThat Shown
OtherInformation
Applies InAddition ToThat Shown
3. Light, Fog Signals and Radar
Lighted Pile
Value Of LightUnknown
Strip Light
Signal Period:Unknown
??????????
Sirened Pile
Value Unknown
Beacon, Safe Water,Pile Beacon
Cartographic Symbol
Symbol IndicatingThis Object Is Radar
Conspicuous
Radar Reflector
Radar TransponderBeacon
Radio Station
Textual Description
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Pilot Boarding Station
Rescue Station
Coastguard Station
Signal Station, Traffic
Radio Station
Harbour Facility
Category: YachtHarbour/Marina
4. Mariners SymbolsCartographic
SymbolSymbolization Code
: AIS Target, WhoseHeading
And Course Are
Both
Unknown
Cartographic
Symbol
Symbolization Code
: Sleeping AISTarget
Cartographic
Symbol
Symbolization Code
:- Active AIS Target,Showing
Vector And/Or
Heading
-MinuteMarks(Totally Six
- AIS Head
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Cartographic
Symbol : ARPA
TargetCartographic Line: One Minute Mark
On ARPA
Vector(Totally SixMin.)
CartographicSymbol : Arrowhead
For ARPA Or
AIS For Course AndSpeed
Through The Water
Cartographic
Symbol : Own ShipSymbol, Constant
SizeCartographic Line
: SOG
Cartographic
Symbol : MinuteMark For Own Ship
Vector(Totally Six
Min.)
Cartographic Line
:Heading
Cartographic
Symbol : Own Ship
Drawn To Scale
With ConningPosition
MarkedCartographic Line
: SOG
CartographicSymbol : Minute
Mark For Own Ship
Vector(Totally Six
Min.)
Cartographic Line: Heading
Cartographic Line
: EBL, Dash
Cartographic Line
: EBL, Dash and
Range MarkCartographic
Symbol : Waypoint
On Planned RouteCartographic Line
: Planned Route ForOwn
Ship
CartographicSymbol : Next
Waypoint OnPlanned
Route
Cartographic Line: Planned Route For
Own ShipCartographic Line
: Alternate Planned
RouteCartographic
Symbol : Waypoint
On Alternate
Planned Route
Cartographic
Symbol : Dangerous
Underwater
Rock Of Uncertain
Depth
Cartographic
Symbol : ActualTidal Stream Or
Current Direction
????????????
??????????
CartographicSymbol : Predicted
Tidal Stream Or
Current Direction
Cartographic
Symbol : Own Ship
Position Fix
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Cartographic
Symbol : Mariners
Event Mark
Cartographic Line :Past Track
???????????????????
??????????
Cartographic Line :SYTRK
Silo/Tank
Category : WaterTower, Visually
Conspicuous
Clearing Line, NLT=
Not LessThan(Bearing)
NMT=Not MoreThan(Bearing)
Cartographic
Symbol : RockWhich Covers/
/Uncovers, Or Is
Awash at
Low Water
Cartographic
Symbol : Point Of
Origin For Offset
EBL Or VRM
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5. Examples
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11. Abbreviations of Principal English Terms
CurrentForm
ObsolescentForm
Term ReferenceToChart5011
Abt abt About IO a
Aero Aeronautical IP60,61
Al Algae IJ t
Al. Alt Alternating light IP10,11
ALC Articulated LoadingColumn
IL12
ALL Admiralty List of Lights
and Fog Signals
-
ALRS Admiralty List of RadioSignals
-
Am Amber IP11,8
Anch. Anche Anchorage IO 21Anct, Anc t Ancient IO 84
ANM Annual Summary ofAdmiralty Notices to
Mariners
-
Annly Annly Annually -Appr. Apprs, Apprs Approaches IO 22
approx Approx Approximate IO 89
Arch. Archo, Archo Archipelago IG 5ASD Admiralty Sailing
Directions-
Astr, Astrl,Astrl
Astronomical -
ATT Admiralty Tide tables -Aus Australia -
Ave Ave Avenue IG111
B. Bay IO 4
B bl,blk Black IJ af,IQ 2
Ba Basalt IJ IBatt, Baty,Baty
Battery IE34.3
Bk Bk Bank IO 23bk brk Broken IJ 33
Bldg Bldg Building ID 5BM, B.M. Bench Mark IB 23
Bn, Bns Beacon(s) IM 1-
2, IP4-5,IQ 80-81
Bn Tr Bn Tower Beacon Tower IP3,
IQ110
Bo Boulders IJ e
Bol Boll. Bollard IF a,IG181
Br Breakers IK 17br Br own IJ ak
Bu Bl, Bl., b Blue IJ ag,IP
11.4,IQ a
C. Cape IG 7
c Coarse IJ 32
ca cal Calcareous IJ 38CALM Catenary Anchor Leg
MooringIL 16
Cas Cas. Castle IE34.2IG 64
Cath, Cath. Cathedral IE
10.1,IG 75
Cb Cobbles IJ 8
cd Candela IB 54CD Chart Datum IH 1
Cemy, Cemy Cemetery IE 19CG. C.G. Coastguard Station IT 10-
11
Ch Ch. Church, chapel IE10.1,IE 11
ch, choc Chocolate IJ al
Chan. Channel IO 14
Chem Chemical IL 40chk, CK Chalk IJ f
Chy Chy Chimney IE 22cin, Cn Cinders IJ n
cm cm. Centimetre(s) IB 43
Co cr l Coral IJ 10,IK 16
Col Column, pillar, obelisk IE 24,IG 66
conspic Conspicuous IE 2
const constn, constrn Construction IF 32cov cov. Covers IK b
Cr. Creek IO 7Cup Cup. Cupola IE
10.4
Cy cl Clay IJ 3
(D) Doubtful -
d Dark IJ ao
decrg decrg Decreasing IB 64dest destd, Destd Destroyed IO 93
Det (see Fog Det Lt) -DG, DG
Range
D. G. Range Degaussing Range IN 25,
IQ 54
Di, di Diatoms IJ wDia Diaphone IR 11Dir Dirn Direction _Dir Dir Lt Directional Light IP 30-
31
Discol Discold Discoloured Water IK ddiscont discontd,
discontdDiscontinued IO b
dist Dist Distant IO 85
Dk Dk Dock IG b
dm dm. Decimetre(s) IB 42
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Dn, Dns Dn Dolphin(s) IF 20dr dr., Dr. Dries IK a
DW Deep-water, Deep-draught
IM 27,IN
12.4
DZ Danger Zone IQ 50
E E. East IB 10
ED (ED), (E.D.) Existence Doubtful Il 1
EEZ Exclusive EconomicZone
IN 47
E.F. Horn Electric fog horn IR 13Ent. Entce, Entce Entrance IO 16
Equinl Equinoctial -
Est Esty Estuary IO 17Estabt Establishment -
ev. Every -exper experl, Experl Experimental IO 92
explos explos. Explosive IR 10
(exting) (exting) ) Extinguished IP 55
f Fine IJ 30
F Fixed Light IP10.1
FAD Fish AggregatingDevice
_
F Racon Fixed frequency radartransponder beacon
IS 3.4
FFL Fixed and flashing light IP
10.10Fj. Fd, Fd Fjord IO 5
(fishg ) Fishing light IP 50
Fl fl. Flashing light IP10.4
Fl., fl Flood -Fla Flare stack (at sea) IL 11
Fm, Fm Farm IG 53
fm, fms fm , fms Fathom, fathoms IB 48Fog Det Lt Fog detector light IP 62
Fog.Sig. Fog signal station IR 1Fog W/T Radio fog signal -
Fr, for Foraminifera IJ u
FS F.S. Flagstaff, Flagpole IE 27Ft, Ft Fort IE
34.2ft ft Foot, feet IB 47,
IP 13
G g Gravel IJ 6G gn Green IJ ah,
IP
11.3IQ 2
G. Gulf IO 3ga, glac Glacial IJ ac
Gc Glauconite IJ p
Gd, grd Ground IJ aGl, gl Globigerina IJ vGovt Ho, Gov t
HoGovernment House -
Gp. Group(of islands) _
Gpfl, Gp.Fl. Group-flashing light IP
10.4GpOcc,
Gp.Occ.
Group-occulting light IP
10.2grt Gross Registered Tons -
Gt, Grt, Gt , Grt Great -
G.T.S. Great TrigonometricalSurvey Station (India)
-
Gy, gy Grey IJ an,IQ a
h Hard IJ 39
H.H. Headway ID 20,ID 26-27
H Helicoptertransfer(Pilots)
IT 1.4
h h., H. Hour IB 49HAT Highest Astronomical
TideIH 3
Hd. Hd Headland IG 8Hn. Hn Haven IG
139Ho House IG 61
(hor) (horl ) Horizontally disposed IP 15
Hosp Hospl, Hospl Hospital IF62.2
Hr. Hr Harbour IG138
Hr, Hr Higher -
Hr Mr Harbour Master IF 60Ht, Ht Height -
HW H.W. High Water IH aH.W.F. & C. High Water Full and
Change
-
H.W.O.S. High Water OrdinarySprings
-
I. It Island, Islet IG 1-2
IALA InternationalAssociation ofLighthouse Authorities
IQ130
IHO InternationalHydrographic
Organisation -(illum) Illum., (lit) Illuminated IP 63IMO International Maritime
Organization
-
in., ins. Inch, inches -
incrg incrg Increasing IB 65INT International IA 3,
IT 21Intens (intens) Intensified IP 46IQ IntQkFl,
Int.Qk.FlInterrupted quick-flashing light
IP10.6
(irreg.) Irregular -
ISLW, I.S.L.W. Indian Spring LowWater
-
Iso Isophase light IP10.3
It Islet IG 2
ITZ Inshore Traffic Zone -
IUQ Interrupted ultra quick-flashing light
IP10.8
IVQ IntVQkFl, Interrupted very quick- IP
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Symbols and Abreviations used on ENCs
Datema Nautical Information Services BV 33
Int.V.Qk.Fl. flashing light 10.7
km km. Kilometre(s) IB 40,IF 40
kn kn. Knot(s) IB 52,IH 40-41
L. Lake, Loch, Lough IO 6l Large IJ ab
Lag. Lagn, Lagn Lagoon IG 13,IO 8
LANBY Large AutomaticNavigational Buoy
IP 8
LASH Lighter Aboard Ship IG184
LAT Lowest AstronomicalTide
IH 2
Lat Lat. Lattitude IB 1LB, L.B. Lifeboat station IT 12
Ldg Ldg Leading IP20.3
Le Le Ledge IO 28
LFl Long-flashing light IP10.5
Lit, Lit. Little -(lit) Floodlit IP 63
LL L.L. List of Lights -
Lndg Ldg Landing place IF 17LNG Liquefied Natural Gas IG
185Long Long. Longitude IB 2
LPG Liquefied Petroleum
Gas
IG
186Lr, Lr Lower IP 23L.S.S. Lifesaving station -
Lt lt, Lt Light IJ an,
IP 1
Lts Lights IP20.1,61.2
Lt Ho LtHo Lighthouse IP 1
Lt V LtV Light-vessel IP 6
Lv, lv Lava IJ jLW L.W. Low Water IH b
L.W.F.& C. Low Water Full andChange
-
L.W.O.S. Low Water OrdinarySprings
-
M m Mud IJ 2
M M. Sea Mile(s) IB 45,IP 14
M Medium IJ 31
M m. Metre(s) IB 41,IP 13
mad, Md Madrepore IJ h
Mag Mag. Magnetic IB 61Magz, Magz Magazine -
man, Mn Manganese IJ oMHHW M.H.H.W. Mean Higher High
WaterIH 13
MHLW M.H.L.W. Mean Higher Low IH 14
MHW Mean High Water IH 5
MHWN M.H.W.N. Mean High WaterNeaps
IH 11
MHWS M.H.W.S. Mean High Water
Springs
IH 9
Mid, Mid. Middle -
min min., m. Minute(s) of time IB 50Mk Mark IQ
101
Ml, ml Marl IJ cMLHW M.L.H.W. Mean Lower High
WaterIH 15
MLLW M.L.L.W. Mean Lower LowWater
IH 12
MLW Mean Low Water IH 4MLWN M.L.W.N. Mean Low Water
NeapsIH 10
MLWS M.L.W.S. Mean Low WaterSprings
IH 8
mm mm. Millimetre(s) IB 44Mo Morse IP
10.9,IR 20
Mon Mont, Mont Monument IE 24
Mony, Mony Monastery IG 76Ms, mus Mussels IJ r
MSL M.S.L. Mean Sea Level IH 6Mt. Mt Mountain, mount IG 23
Mth Mth Mouth IO 19
MTL M.T.L. Mean Tide Level IH c
N N. North IB 9
Nauto Nautophone IR 13
NB N.B. Notice Board IQ126
NE N.E. Northeast IB 13NM N.M. Notice to Mariners -
n.mile International NauticalMile
IB 45
No No Number IN12.2
Np Np. Neap Tides IH 17
NW N.W. Northwest IB 15
NZ New Zealand -
Obs.SpotObsn Spot,
Obsn Spot
Observation Spot IB 21
Obscd Obscd Obscured IP 43
Obstn Obstn Obstruction, Diffuser IK 40-43,IL43
Obsy, Obsy Observatory IG 73Oc Occ , Occ. Occulting light IP
10.2(occas) (occas l ) Occasional; IP 50
OD O.D. Ordnance Datum IH d
ODAS Ocean Data-Acquisition System
IQ 58
Off, Off. Office IG 72Or Or. Orange IP
11.7,
IQ 3
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Symbols and Abreviations used on ENCs
Datema Nautical Information Services BV 34
ord. Ordinary -Oy, oys Oysters IJ q
Oz, oz Ooze IJ b
P peb Pebbles IJ 7P. Port IG
137(P) Preliminary(NM) -
PA (PA), (P.A.) Position approximate IB 7
Pag Pag. Pagoda IE 14Pass. Passage IO 13
PD (PD), (P.D.) Position Doubtful IB 8Pen. Penla, Penla Peninsula IG 4
Pk. Pk Peak IG 25
Pm, pum Pumice IJ kPO P.O. Post Off ice IF 63
Po, pol Polyzoa IJ zpos posn, pos n Position -
(priv) Priv., (Priv.) Private IP 50,IP 65,IQ 70
Prod.Well Production Well IL 20prohib Prohibd Prohibited IO c
proj projd, Projd Projected IO 80
prom promt, Promt Prominent IO dProm. Promy, Promy Promontory IG 20
(prov), (prov l) Provisional -Pt. Pt Point IG 9
Pt, pt Pteropods IJ y
Pyl Pylon ID 26
Q QkFl, Qk.Fl. Quick-flashing light IP10.6
Q
r
Quarter -Qz, qrtz Quartz IJ g
R rd Red IJ aj,IP11.2,IQ 3
R. River -
R r Rock IJ 9,IK 15
R Ro Coast Radio Stationproviding QTG service
IS 15
Ra Radar Range,Radar Reference Line,
Coast Radar Station
IM 31-32, IS
1Ra(conspic)
Ra.(conspic)Radar conspicuousobject
IS 5
Ra.Refl. Radar Reflector IQ 10-11,IS4
Racon Radar TransponderBeacon
IS 13
rad, Rd Radiolaria IJ x
Radome Radar Dome IE
30.4Ramark Radar Beacon IS 2RC Non-directional Radio-
beaconIS 10
RD Dir.Ro.Bn DirectionalRadiobeacon
IS 11
Rds Rds Roads, Roadstead IO 20Ref Refuge IQ
124,IT 14
Ref l Refl. Retroreflecting material IQ 6
Remble Remarkable -Rep Repd, Repd Reported Il 3
Rf. Rf Reef IO 26RG Ro D.F. Radio Direction-
Finding Station
IS 14
Rk. Rk Rock IG 11(R Lts) (Red Lts) Air Obstruction Lights
(low intensity)IP61.2
Rly, Ry, Ry Railway ID 13
Ro Bn Radiobeacon ingeneral
IS 10
RoRo Ro-Ro Roll-on Roll-off ferryterminal
IF 50
R.S. Rocket station -
Ru, (ru) Ru. Ruins ID 8,IE25.2,IF 33
RW Rotating PatternRadiobeacon
IS 12
S. St, St Saint IG 54S s Sand IJ 1
S S. South IB 11
s sec, sec. Second(s) of time IB 51,IP 12
SALM Single Anchor LegMooring
IL 12
SBM Single Buoy Mooring IL 16
SC S.C. Sailing Club IU 4
Sc, sc Scoriae IJ mSc Sc. Scanner IE
30.3
Sch Sch. School IG a
SD S.D. Sailing Directions -SD Sounding of doubtful
depthIl 2
Sd. Sd Sound IO 12
SE S.E. Southeast IB 14
Sem, Sem. Semaphore -sf stf Stiff IJ 36
Sh sh Shells IJ 11Sh. Shoal IO 25
Si Silt IJ 4
Sig Sig. Signal IR 1,IT
25.2sk, spk Speckled IJ ad
sm Small IJ aa
SMt SMt Seamount IO 33Sn, shin Shingle IJ d
so sft Soft IJ 35Sp Sp. Spire IE
10.3
Sp, sp Sponge IJ sSp Sp, Spr. Spring Tides IH 16
SPM Single Point Mooring IL 12SS Sig Sta, Sig
StnSignal Station IT 20-
36
St st Stones IJ 5
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Symbols and Abreviations used on ENCs
St St. Street IG110
Sta Sta., Stn, Stn Station ID 13Stm.Sig.Stn. Storm Signal Station IT 28
Str. Strait IO 11
subm Submd,Submd
Submerged IO 90
SW S.W. Southwest IB 16SWOPS Single Well Oil
ProductionSystem
IL e
sy stk Stickly IJ 34
T, t Tufa IJ 1
(T) Temporary(NM) -t Ton, tonne IB 53,
IF 53t Elevation of top of
treesIC 14
Tel Tel. Telephone, Telegraph IG 95(temp) (tempy),
(tempy)Temporary IN b,
IP54Tr Tr Tower IE
10.2,
IE 20TSS Traffic Separation
Scheme-
TV Tr T.V. Tr Television Tower IE 28-29
(U) Unwatched, unmanned(light)
IP 53
ULCC Ultra Large CrudeCarrier -
uncov uncov. Uncovers IK cunexam unexamd.
unexamdUnexamined Il a
Unintens Unintensified IP a
Upr Upper IP 22UQ Ultra quick-flashing
lightIP10.8
v vol Volcanic IJ 37Va, Va Villa -
Var Varn Variation IB 60var Varying -
Vel Vel. Velocity -
(vert) (vertl) Vertically disposed IP 15Vi Violet IP
11.5vis. Visible -
VLCC Very Large CrudeCarrier
IG187
Vol. Volcano IG 26
VQ VQkFl.V.Qk.Fl
Very quick-flashinglight
IP10.7
W W. West IB 12
W w White IJ ae,IP11.1IQ a
Water Tr Water Tr Water Tower IE 21Wd wd Weed IJ
13.1WGS World Geodetic
System
IS 50
Whf Whf Wharf IF 13,IG c
Whis Whis. Whistle IR 15Wk Wk Wreck IK 20-
30
W/T Radio(Wireless/Telegraphy)
-
Y y Yellow, amber, orange IJ ai,IP 11,IQ 3
YC Y.C. Yacht Club IU 4yd, yds Yard(s) -