et

nähtavus

1

Terminological databases

EKI terminibaas Esterm

ID 714069 Last modified 30.12.2004
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Domain opticsroad transport & road vehicles
nähtavus
Usage examples
  • Mälestise ja muinsuskaitseala silueti nähtavuse ja vaadeldavuse tagamiseks tuleb üld- ja detailplaneeringute koostamisel arvestada Muinsuskaitseinspektsiooni poolt kooskõlastatud eritingimusi.
visibility
Usage examples
  • No red light shall be visible towards the front and no white light other than that from the reversing lamp shall be visible towards the rear. This requirement is considered to have been met if: 3.10.1. for the visibility of a red light towards the front: there must be no direct visibility of a red light if viewed by an observer moving within Zone 1 in a transverse plane situated 25 m in front of the vehicle ...

EKI terminibaas Esterm

ID 733445 Last modified 03.05.2024
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Domain air traffic
nähtavus
VIS
visibility
V
VIS
  • lennunduses mõistetakse nähtavuse all suurimat kaugust, kust on nähtav ja äratuntav maapinna lähedal heledal taustal asetsev sobivas suuruses must objekt või suurimat kaugust, kust vaateväljas asuvat valgusallikat tugevusega umbes 1000 kandelat on võimalik valgustamata taustal näha ja identifitseerida, olenevalt sellest kumb kaugus on suurem
    Good to know
    • Neil kahel kaugusel on erinev õhus hajumiskoefitsient ja viimatinimetatud kaugus sõltub tausta valgustusest. Esimesena nimetatud kaugus on väljendatud meteoroloogilise optilise kaugusena (Meteorological Optical Range – MOR).
    • Definitsioon kehtib nähtavuse määratlemisel kohalikes tava- ja spetsiaalteadetes, METAR (Aviation Routine Weather Report) ja SPECI (Aviation Selected Special Weather Report) teadetes toodud üld- ja miinimumnähtavuse määratlemisel ja nähtavuse määramisel maapinnal.
  • visibility for aeronautical purposes is the greater of: a) the greatest distance at which a black object of suitable dimensions, situated near the ground, can be seen and recognized when observed against a bright background; b) the greatest distance at which lights in the vicinity of 1 000 candelas can be seen and identified against an unlit background.
    Good to know
    • The two distances have different values in air of a given extinction coefficient, and the latter b) varies with the background illumination. The former a) is represented by the meteorological optical range (MOR).
    • The definition applies to the observations of visibility in local routine and special reports, to the observations of prevailing and minimum visibility reported in METAR and SPECI and to the observations of ground visibility.
Good to know
  • Valdkond ICAO lisade põhjal loodud klassifikaatori järgi: Lennureeglid
nähtavus
VIS abbreviation
visibility
V abbreviation
VIS abbreviation
видимость

Word forms

Inflection Type 11

nähtavus nähtavused
nähtavuse nähtavuste
nähtavust nähtavusi

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