Ngày tải lên :
17/03/2014, 14:20
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TheseAidsareused to markfairways,mid-channels,andoffshore
approachpointsTheyhaveunobstructedwateronallsides A buoy,
lightedorunlighted,mayshow a redtopmarkAnappropriatenautical
chartmustbeconsulted to determineexactposition
Oneof the mostimportanttoolsforsafelynavigatingwaterwaysis a
NauticalChartToday,manyrecreationalboatersuseGPSreceivers
andperformelectronicwaypointnavigationAlthough a GPScantellyou
whereyouareintermsoflatitudeandlongitude,itcannotshowwhatis
aroundorbeneath the boat,orwhatobstaclesmaybein the way
Nauticalchartsshow the natureandshapeof the coast,includingwater
depths,marinehazards,generalconfigurationandcharacterof the
bottom,andAids to Navigation,aswellasprominentlandmarks,port
facilities,andotherrelevantinformationChangesbroughtaboutby
peopleandnaturerequirethatnauticalchartsbeconstantlymaintained
andupdated to aidsafenavigation
To meet the needsof the boatingpublic, the NationalOceanicand
AtmosphericAdministration’sNationalOceanService(NOS)produces a
varietyofnauticalchartsandrelatedproductsNauticalchartscanvaryin
scaleandformatChartscalerefers to a measurementofanarea,not the
distance A chartcovering a relativelylargeareaiscalled a “smallscale”
chart; a “largescale”chartwillcover a relativelysmallareaandshow
muchgreaterdetailHaving the mostcurrentchartisimportantThatis
why the publicationdateiscriticalStormsandwaveactioncanalter the
coastline,soonlyup -to- datechartsshouldbeusedfornavigationFor
allnavigation,boatoperatorsshouldalsouse the chartthatprovides the
levelofdetailneeded
NOSnauticalchartsmaybepurchaseddirectlybymailfrom the NOS
DistributionBranchorthroughanauthorizedagentTherearemore
than1,700nauticalchartagentsthatsellNOSchartsUse the address
andcontactnumbersbelow to obtain a listofagentsnearyouor to
request a freecatalog:
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Neverloadyourboatwithpassengersandcargobeyonditssafe
carryingcapacityToomanypeopleand/ortoomuchgearcancause
the boat to becomeunstableAlwaysbalance the loadsothat the boat
maintainspropertrimWhenloadingyourboat:
• ... 45
TheseAidsareused to markfairways,mid-channels,andoffshore
approachpointsTheyhaveunobstructedwateronallsides A buoy,
lightedorunlighted,mayshow a redtopmarkAnappropriatenautical
chartmustbeconsulted to determineexactposition
Oneof the mostimportanttoolsforsafelynavigatingwaterwaysis a
NauticalChartToday,manyrecreationalboatersuseGPSreceivers
andperformelectronicwaypointnavigationAlthough a GPScantellyou
whereyouareintermsoflatitudeandlongitude,itcannotshowwhatis
aroundorbeneath the boat,orwhatobstaclesmaybein the way
Nauticalchartsshow the natureandshapeof the coast,includingwater
depths,marinehazards,generalconfigurationandcharacterof the
bottom,andAids to Navigation,aswellasprominentlandmarks,port
facilities,andotherrelevantinformationChangesbroughtaboutby
peopleandnaturerequirethatnauticalchartsbeconstantlymaintained
andupdated to aidsafenavigation
To meet the needsof the boatingpublic, the NationalOceanicand
AtmosphericAdministration’sNationalOceanService(NOS)produces a
varietyofnauticalchartsandrelatedproductsNauticalchartscanvaryin
scaleandformatChartscalerefers to a measurementofanarea,not the
distance A chartcovering a relativelylargeareaiscalled a “smallscale”
chart; a “largescale”chartwillcover a relativelysmallareaandshow
muchgreaterdetailHaving the mostcurrentchartisimportantThatis
why the publicationdateiscriticalStormsandwaveactioncanalter the
coastline,soonlyup -to- datechartsshouldbeusedfornavigationFor
allnavigation,boatoperatorsshouldalsouse the chartthatprovides the
levelofdetailneeded
NOSnauticalchartsmaybepurchaseddirectlybymailfrom the NOS
DistributionBranchorthroughanauthorizedagentTherearemore
than1,700nauticalchartagentsthatsellNOSchartsUse the address
andcontactnumbersbelow to obtain a listofagentsnearyouor to
request a freecatalog:
...