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Clouds
A cloud is a visible body of very fine water droplets or ice particles suspended in the atmosphere at altitudes up to several miles above sea level. They are generally produced by the condensation of water vapor. Other clouds, less commonly seen, are composed of smokes or dusts.
10,186 Questions
At what temperature does water become a solid?
The temperature that it takes for water to freeze into solid ice is 0 degrees Celsius. Other units of measurement for temperature include Fahrenheit (32 degrees) or Kelvin (273).
Where do high pressure areas occur?
High pressure areas typically occur in regions where air descends towards the surface, leading to more air molecules being compressed in a given space. This results in greater atmospheric pressure at the surface, creating a high pressure system. High pressure systems are commonly associated with calm, clear weather conditions.
cooler air as it drops down. lol sorry
What happens to the dew point temperature of a descending air mass?
Air temperature rises because the air compresses and warms adiabatically (simply because pressure increases). But no moisture is being added or removed from the air, so the dew point and absolute/specific humidity do not change. What changes is relative humidity, which lowers, due to the warmer air being able to hold more moisture.
A nimbostratus cloud is a type of cloud that appears usually in groups and are large, dark rounded masses. These clouds move slowly and produce precipitation.. These clouds form low in the sky and the rain they produce could go on for days.
The shadow of a cloud on the ground is the same size and shape as the cloud itself because the sun's rays are parallel and the cloud is acting as a screen, blocking the light from reaching the ground below and creating a shadow that mirrors its shape.
Why don't the clouds float out to space?
The earth does not float - it free falls in orbit. It is a popular misconception that there is no gravity in space.
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Imagine you are in an elevator and the cables snap, and the elevator starts free falling. Disregarding air friction, you and everyone in the elevator will all fall at the same speed as the elevator. You will be able to "float" weightlessly inside the elevator, just as astronauts do inside the ISS.
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In the case of the elevator, we know eventually you will meet an untimely end when the elevator strikes the ground floor. But unlike the elevator, the earth moves around the sun at a very high speed, so as it falls downward, it also travels sideways, and so the earth follows the path of a circle. The shape and size of this circle is such that the earth never gets much closer to the sun, even though it is "falling". In this way, the Earth is free falling around the sun in an orbit. Similarly, the moon is free falling around Earth in an orbital path.
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To understand how the earth is free falling, follow this mental experiment. Disregard air friction, and assume you have unlimited strength. Imagine throwing a baseball level to the ground - that is, you don't throw it up or down, but it is travelling parallel to the ground when it leaves your hand. We all know from experience the ball will travel a ways before falling to the ground. Now, throw it twice as hard. It will travel twice as far before hitting the ground. Now imagine being able to throw the baseball so hard that it lands 6000 miles (10,000 Km) away. But 6000 miles away is a quarter of the way around the spherical planet. So your ball did not go in a straight line - it was falling all the time it was in flight, but because the earth was curving away, the ball also travelled in a curved line while in free fell. Finally, imagine throwing the ball so hard that, as it fell downwards, the earth curved away at the same rate, and so the ball wizzed around the earth and hit you on the back of the head.
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We know that a ball cannot hit you on the back of the head, even if you could throw it that hard, because of air friction and obstacles in the way, like mountains. But at 250 miles up, there is (almost) no air friction, and no obstacles to prevent the ball from circling the earth. That is exactly what happens to the International Space Station (the ISS) - the rockets push (throw) the ISS so hard and so fast in a sideways direction that, as the ISS falls, the earth curves away from it at exactly the same rate, and so the ISS really does fall without actually getting closer to the earth. The same principle applies to the Earth orbiting around the Sun - it free falls in a sideway motion at the exact rate that allows the Earth to stay in perfect orbit around the Sun.
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We know from Newton's first law of motion that a body in motion moves at the same speed and in the same direction unless a force acts upon it. So we know that the Earth would go in a straight line, NOT in orbit, if no forces were acting upon it. But it does follow a circular orbit, and so we know for certain that that full force of gravity is still acting upon the Earth and all of its inhabitants.
Convective mixing is the entrainment and deepening of the mixed layer in a lake due to heat loss generally in combination with wind forcing. Convective mixing is the entrainment and deepening of the mixed layer in a lake due to heat loss generally in combination with wind forcing.
Any cartel is a set of people, companies, countries, which have such a strong control over some commodity that others wish to buy, that they agree not to compete with each other for sales, but all offer to sell at the same price. The customer is thus held to ransom because there is not a free competing market. A famous example is oil, but others exist in food, minerals etc.
Do clouds form from water produced by condensation or from water vapour in the air?
Clouds form from water vapor in the air that condenses into water droplets or ice crystals. This condensation occurs when the air reaches its dew point, causing the water vapor to change into visible cloud particles.
Does adiabatic cooling relate to cloud formation?
Adiabatic cooling relates to cloud formation in such, when it pushes air out of the way when rising, energy is released into the surroundings and the air cools "adiabatically." When the air that is cooling meets up with other air that is in the same situation, a cloud starts to forms, and when that cloud forms, it cools enough when it reaches a certain altitude and rains.
What makes weather move around the world?
Weather moves around the world due to the rotation of the Earth, the heating and cooling of the atmosphere, and the distribution of heat energy from the sun. This creates differences in air pressure that drive the movement of air masses, causing weather systems to form and move across the globe.
What is the vapor blanket around the sun called?
The vapor blanket around the sun is called the solar corona. It is the outermost layer of the sun's atmosphere and is composed of highly ionized gas that is visible during a total solar eclipse.
A warm air mass that is cut off from the ground is said to be what?
A warm air mass that is cut off from the ground is said to be an aloft air mass.
Explain what the difference between warm and cold air with regards to movement Why does this happen?
Warm air tends to rise due to its lower density compared to cold air, which causes it to be displaced by cooler, denser air. As warm air rises, cold air takes its place, creating a circular motion known as convection currents. This movement happens because warmer air expands and becomes less dense, leading it to ascend while colder air contracts and sinks.
Does pollution affect cloud formation?
Yes, pollution can affect cloud formation by altering the composition of aerosols in the atmosphere. Increased levels of pollution can lead to more aerosols, which can impact cloud droplet formation and properties, potentially influencing cloud cover, precipitation patterns, and overall cloud behavior.
Does rain fall from the sky or clouds?
The rain comes from the clouds which has water in the form of water vapour .These water vapour condenses due to low temperature in the atmosphere and come to earth as rain or in any other way of precipitation
What three processes occurs to form clouds?
Cloud formation involves three main processes: 1) evaporation of water from the Earth's surface, 2) condensation of water vapor into tiny droplets or ice crystals in the atmosphere, and 3) the aggregation of these droplets or crystals to form visible clouds.
As warm moist air moves into a region barometric pressure readings in the region will generally?
Decrease. Warm air is less dense than cool air, causing it to rise and create lower pressure at the surface. This can lead to the formation of clouds and potential for precipitation in the region.
Condensation nuclei are involved in the formation?
Condensation nuclei are tiny particles in the atmosphere on which water vapor condenses to form clouds or fog. These nuclei can be dust, salt particles, or pollutants. They are crucial for cloud formation as they provide a surface for water vapor to condense onto, initiating the cloud formation process.
A cloudy day refers to a day when a significant portion of the sky is covered by clouds, resulting in limited visibility of the sun or sky. Cloudy days can vary in terms of the thickness and types of clouds present, impacting the amount of sunlight that reaches the ground.
When a fast moving polar continental air mass overtakes a slow moving Atlantic maritime tropical air mass, a cold front forms. The cold front occurs at the boundary where the denser, colder air replaces the warmer air, lifting the warm air and leading to the potential for thunderstorms and heavy precipitation.
Why does got air rise and cold air sink?
Hot air rises because it is less dense than cold air. As hot air heats up, its molecules move more quickly and spread out, making it lighter and causing it to rise. Conversely, cold air is denser and sinks because its molecules move slower and are more closely packed together.
