Q.
How you explain visibilty
Tags:
visibilty
Asked by pinder sandhu,
01 Jun '07 09:23 pm
Earn 10 points for answering
Answers (3)
1.
Report abuse
Useful
(0)
Not Useful
(0)
Your vote on this answer has already been received
2.
Report abuse
Useful
(0)
Not Useful
(0)
Your vote on this answer has already been received
3.
In meteorology, visibility is a measure of the distance at which an object or light can be clearly discerned.
It is important to all forms of traffic: roads, sailing and aviation. Meteorological visibility refers to transparency of air: in dark, meteorological visibility is still the same as in daylight for the same air.
Aviation. In aviation, visibility is defined as 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 of 1,000 candelas can be seen and identified against an unlit background.
Another term, Runway Visual Range (RVR) is also defined. This is related to visibility specifically measured near a runway in the direction of an approaching aircraft.
on clear days, Tel Aviv's skyline is visible from the Carmel mountains, 80km northIn extremely clean air in Arctic or mountainous areas, the vi ...more
Answered by Farheen Irene Khan, 01 Jun '07 09:29 pm
It is important to all forms of traffic: roads, sailing and aviation. Meteorological visibility refers to transparency of air: in dark, meteorological visibility is still the same as in daylight for the same air.
Aviation. In aviation, visibility is defined as 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 of 1,000 candelas can be seen and identified against an unlit background.
Another term, Runway Visual Range (RVR) is also defined. This is related to visibility specifically measured near a runway in the direction of an approaching aircraft.
on clear days, Tel Aviv's skyline is visible from the Carmel mountains, 80km northIn extremely clean air in Arctic or mountainous areas, the vi ...more
Report abuse
Useful
(0)
Not Useful
(0)
Your vote on this answer has already been received