Meteorology and Weather
Meteorology is the science which deals with the phenomena of the atmosphere, especially weather and weather conditions. It involves the study of the character of the atmosphere and the events and processes within it, together with the interaction between the atmosphere and the face of the earth. Weather, of course, is what occurs on the surface of the earth from day to day, whether that be rain, sunshine, heat or cold, or whatever the outside conditions are.
Asked in Meteorology and Weather, Seasons
What season does the sun cast the shortest shadow?
Why is ice hard?
As the temperature lowers the molecules slow down and form into a crystal. The total volume of actual h2o is smaller. The reason the ice cube is larger than its relative size in liquid form is due to gaps the crystal structure creates. The higher density and crystal structure makes solids of any molecule much harder relative to its liquid counterpart. This goes for every liquid vs. solid.
How do cyclones form?
Simple explanation: As warm, moist air over the ocean rises up from the ocean surface, there is less air left near the surface, and this causes an area of lower air pressure below. The air around this region has higher air pressure, and so it rushes in to fill the low pressure area. This air also becomes warm and moist and so it rises, too. The cycle keeps going. Warm air rises, the surrounding air swirls in to take its place, and so on. When the warm moist air rises, it cools off, and the water in the air forms clouds. The whole system of clouds and wind spins and grows, because it is being constantly fed by the ocean's heat and water evaporating from the surface. More detailed explanation: Cyclones (including typhoons and hurricanes) are caused by warm tropical moisture bearing clouds developing in open oceans or seas. Cyclones can only form over warm waters in the tropical regions of the oceans where the sea temperatures are 26.5 degrees Celsius or higher (around 80 degrees Fahrenheit). They occur in areas of very low pressure when air that is heated by the sun rises rapidly, and becomes saturated with moisture which then condenses into high thunderclouds. As the atmosphere becomes favorable for development (no wind shearing in the higher parts of the atmosphere), normal thunder storms clump together. When the hot air rises, cooler air rushes in to fill the area left vacant by the hot air. The Coriolis effect of the Earth spinning on its axis causes the air to spiral upwards with considerable force. This in turn causes the winds to rotate faster, causing the tropical low to deepen in intensity into a tropical depression, and eventually a cyclone which is anywhere between hundreds of kilometres to thousands of kilometres wide. Cyclones are also characterised by strong winds, yet in their centre is a clear, calm region called the 'eye.' When the cyclone continues its course, and the winds return from the other direction, they may seem to be more violent. The winds are not just rotating; there is also the effect of the warmer air continually rising and cold air rushing in. That is why the winds are so strong, and seem to move in all directions. Winds gusts in a category 5 cyclone can exceed 280 kph, and a fully developed cyclone pumps out about two million tonnes of air per second.
Asked in Science, Meteorology and Weather, Physics
Water vapor acts like a prism and can break up white light into different colors to cause a rainbow to appear?
Yes, water vapor can act like a prism. A rainbow is caused by raindrops, not by vapor. When light enters a raindrop at an angle to its surface, different colors refract at different angles as in a prism. A reflection occurs at the far side of the drop, and more refraction occurs as the light exits the drop, to be seen by your eye. Multiple reflections inside the drop are the cause of multiple ("double", even "triple") rainbows.
Asked in Meteorology and Weather, Physics, Chemistry
What is the pressure in atmospheres for a gas that has a pressure of 655 Torr?
1 atmosphere pressure = 760 torr 655 torr / ( 760 torr / ATM) = 0.86184 ATM If you're not sure whether to multiply or divide when doing conversions, do this: 655 torr . 1 ATM ------------ * --------- 1. . 760 torr The formatting did not display exactly as I wanted it to appear This is read like a fraction. Since 1 ATM = 760 torr, the numerator and denominator are equal, so it's like just multiplying by 1 and won't change the value. The torr units in numerator/denominator cancel out, and the only unit remaining is atmospheres.
Asked in Meteorology and Weather, Meteorologists
Why do meteorologists use symbols to indicate weather conditions?
Is red sky in the morning sailors take warning red sky at night sailors delight is based on a myth or a fact?
Both, but more on fact. Since the sun comes up in the east, a red sky in the morning often means there is adverse weather developing, whereas if there's red sky at dusk, then the inclement weather has passed and there will be a nice day the following day. _______________________________ It's a simplification based on the fact that most weather systems move from west to east. It's not a "fact", but it is based on probable events in the next 12 to 24 hours.
What are the advantages of cycle of sedimentation?
the study of cycle of sedimentation and sedimentary rock has great practical value as well. Oil and gas, our most valuable sources of energy are found in these rocks. These precious resources are becoming increasingly difficult to find, and so it's more important than ever to understand how sedimentary rocks which is known as sedimentation cycle. As oil and gas decline in abundance, coal which is a distinct type of sedimentary rock will be use increasingly to generate energy. Another important energy source that may accumulate in sedimentary rock is uranium, which is for nuclear power. Phosphate rock used for fertilizer is sedimentary, as is much of the world's iron ore. Knowing how these kinds of sediment form or sedimentation cycle can help us to find and use these limited resources. May my answer can help you.
What is the difference between partly cloudy and mostly sunny?
Believe it or not, there is a difference. It relates to the average amount of cloud cover expected. Would you believe partly sunny means more cloud cover than partly cloudy? Can be confusing to the public...mostly sunny means more sun than partly cloudy does, while partly sunny means more clouds than partly cloudy does. Anyway, from least cloud cover to most, the scale is: sunny, mostly sunny, partly cloudy, partly sunny, mostly cloudy, cloudy. Mostly sunny means more sun than clouds, partly sunny means more clouds than sun, and partly cloudy generally means an equal amount of clouds and sun.