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It is a mirror that has been parted into sixteen equal parts, by drawing lines on it. If you hold it flat so it mirrors the sky, you can see how many of the 16 parts are fully covered in clouds. Then you change what it is into eights and call it an okta.

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What instrument used to measure cloud cover?

There are instruments called Ceilometers which can measure cloud height and cover, but they're not especially accurate for cover (they are quite good for cloud height, especially at night) as a cloud can sit over the instrument and give a false reading. Also, unless cloud passes over them they give a false negative. The best instrument for measuring cloud cover is a trained Mark I eyeball (or two)Read more: What_instrument_is_used_to_measure_clouds


What are the five terms used to describe how cloudy it is on any given day?

The five terms used to describe cloudiness are clear (0-10% cloud cover), partly cloudy (11-50% cloud cover), mostly cloudy (51-90% cloud cover), cloudy (91-100% cloud cover), and overcast (complete cloud cover).


the air in a cool region underneath cloud cover will have ____ a region with no cloud cover?

a higher density than... apex


How do you record cloud cover?

Meteorologists measure the amount of cloud cover in the sky using a unit of measurement called an "okta." Basically, one okta is one eighth of the sky that is covered in cloud. The severity of cloud cover ranges from zero oktas to eight, with zero being a completely clear sky and eight oktas being complete cloud cover. It can be fun to observe how the cloud cover will differ from day to day and even from hour to hour. What do you think is responsible for these changes


What is earths cloud cover?

The average Earth's cloud cover is around 60%. This means that on average, 60% of the Earth is covered by clouds at any given time. Cloud cover can vary depending on location, season, and weather conditions.

Related Questions

What is the real device for cloud cover?

Cloud cover is measured using a mirror, which is divided to 16 equal parts. One can have aside look to the inclined mirror, so that to look at the sky, then he counts the number of portions of the mirror that the blue sky is hidden by clouds. The Oktas reflects an index of cloud cover, Number of oktas equals:Oktas=NC/2where NC:Number of mirror parts covered with clouds.eg: if we see clouds in 5 portions out of 16 then oktas=5/2=2.5 oktasCloud Cover is then be: oktas/8 *100 =2.5/8*100=31.25 %Oktas has values from 0 (no clouds) to 8(full covered sky)corresponding cloud cover from 0% to 100%


What part of speech is cloud cover?

Cloud cover is a noun. "Expect lots of cloud cover today."


What instrument used to measure cloud cover?

There are instruments called Ceilometers which can measure cloud height and cover, but they're not especially accurate for cover (they are quite good for cloud height, especially at night) as a cloud can sit over the instrument and give a false reading. Also, unless cloud passes over them they give a false negative. The best instrument for measuring cloud cover is a trained Mark I eyeball (or two)Read more: What_instrument_is_used_to_measure_clouds


What cool region underneath cloud cover will have a region with no cloud cover?

A higher pressure than


A cool region underneath cloud cover will have a region with no cloud cover.?

A higher pressure than


a cool region underneath cloud cover will have ____ a region with no cloud cover?

A higher pressure than


What cool region underneaths cloud cover Will have a region with no cloud cover?

A higher pressure than


A cloud of fruit flies hovered over the bathroom?

From hairspray residue on the mirror. It is sweet to the fruit flies. Just wash the mirror.


How do you remove the mirror cover on a 2006 f-250?

The mirror cover can be removed by removing the mirror cover retaining bolts. You can access the retaining bolts by removing the inside door panel.


The air in a cool region underneath cloud cover will have blank a region with no cloud cover?

The air in a cool region underneath cloud cover will have higher humidity compared to a region with no cloud cover. Clouds can trap moisture and prevent it from evaporating, leading to higher humidity levels beneath them.


What was the temperature and cloud cover on December in Kansas city?

Cloud cover does not have a temperature. It affects the rate of heating or cooling.


What is the unit of measurement for a cloud cover?

Cloud cover is usually given as a percentage, there is no unit of measure.