Despite the fact that the Earth has just one atmosphere, the weather is not the same all across the planet. Weather varies by location and changes over the course of minutes, hours, days, and weeks. The troposphere is the region of the Earth's atmosphere closest to the ground where the majority of weather occurs. It extends from about 7 miles up in the air right down to the surface of the earth.
The stratosphere is the second layer of the atmosphere. It begins at about 12 miles up and stretches all the way to the edge of space. Weather phenomena that occur in this upper part of the atmosphere include clouds, precipitation (rain or snow), storms, and winds.
The troposphere is divided into two main layers: the tropopause and the stratopause. The tropopause is the boundary between the troposphere and the atmosphere beyond. It acts as a barrier that prevents moisture in the lower parts of the troposphere from entering the stratosphere. Clouds form when water vapor in the air condenses into droplets large enough to see from space. As these droplets rise through the troposphere they can fall back to Earth as rain or be carried away by winds to other locations where they will release their water vapor again. Rainbows are formed when sunlight refracts through the droplets in clouds and reaches the eye of the observer on the other side.
Stratospheric clouds are different from tropospheric clouds in many ways.
The heat from the sun and the movement of the air on Earth generate weather. The lowest layer of the Earth's atmosphere, which is a layer of gases around the Earth, is where all weather occurs. The sun's heat heats the air in this layer to varying degrees in different locations. This causes differences in pressure that lead to wind.
Weather can change rapidly, sometimes in an hour or less. A storm or tornado can blow in from the east and within minutes has moved out to sea. Weather is never still; it always changes. Sometimes these changes are so sudden that they're difficult to explain even with modern science. An example is when a cold front passes over a region. It can bring snow from Arizona to South Carolina - in a single day!
Sometimes we call these rapid changes in weather "thunderstorms". They often start with clouds forming and then moving quickly across the sky. These clouds are made of water droplets suspended in the air. As the cloud moves across the face of the Earth, it can produce rain or snow far away from its source. Thunderstorms can be very dangerous - especially for people who live in areas where they are not normally seen. In some cases, they can cause floods and landslides when they reach underground reservoirs.
Thundersnow is when thunder and lightning occur together with snowfall.
The condition of the atmosphere at any particular time is referred to as weather, and it includes factors such as temperature, precipitation, air pressure, and cloud cover. Winds and storms cause daily variations in the weather. Seasonal variations result from the Earth's rotation around the sun. The amount of sunlight received by the surface varies throughout the year, which affects the average temperature. For example, more sunlight means that there is more heat energy available to warm the planet. Conversely, less sunlight results in cooler temperatures.
Weather can also vary greatly in space. This is due to differences in the height of the clouds, which block out light from the sun. These variations in altitude lead to different climates at different levels in the atmosphere. For example, clouds usually prevent solar radiation from reaching the ground below about 10 miles (16 km) above sea level, but they allow enough radiation to reach 3500 feet (1080 m) or more.
Atmospheric conditions play a major role in determining the appearance of our planet. Volcanoes emit gases that create clouds and affect the acidity of the water. Glaciers reflect light and make the world's ice caps white. Clouds have an enormous impact on how we live: they protect us from high temperatures and heavy rains by allowing rain to fall somewhere else. They may also help control the temperature of the planet by blocking out part of the sun.
Weather is the condition of the atmosphere on a given day and its short-term fluctuation in minutes to weeks. Weather is commonly defined as the mix of temperature, humidity, precipitation, cloudiness, visibility, and wind. The weather of a location averaged over a period of time, usually 30 years, is referred to as its climate.
The Earth's atmosphere is made up of three layers: the troposphere, stratosphere, and mesosphere. It contains gases such as oxygen, nitrogen, carbon dioxide, water vapor, ozone, and argon among others. The troposphere is the lowest layer of the atmosphere and it extends from the surface of the planet to about 10 miles (16 km) above sea level. It is the layer that affects our daily lives by providing weather conditions that can range from rain, snow, sleet, fog, or clouds. The troposphere is divided into two main regions: the tropics and the temperate zone. These two regions have different characteristics because of their different temperatures.
In the tropics, the average temperature is around 72 degrees Fahrenheit (22 degrees Celsius). In the temperate zone, the average temperature is around 54 degrees Fahrenheit (12 degrees Celsius). These are just averages though; each place on Earth has areas where the temperature goes up and down more than this.
There are several factors that can change the shape and size of the troposphere including volcanoes, ice caps, and oceans.
The state of the atmosphere during a brief period of time is referred to as weather. It is always evolving. Climate, on the other hand, is a weather composite built on several years of weather records. Although they are not identical, they are both measured using the same items listed below (in #2).
Climate is long term behavior of Earth's environment, including its biosphere and hydrosphere, as influenced by natural and human processes.
Weather is the observation of what is happening at a particular place and time.
Elements of climate that also affect weather include temperature, moisture, pressure, wind, and clouds. These elements interact with each other to influence how landforms are formed, where water flows, and what types of organisms can live in different areas. Climate change is any persistent change in the average conditions of the earth's climate. The causes of this change may be increased CO2 concentration or changes in other factors such as the amount of solar radiation received by the planet. Human activities such as burning fossil fuels can increase the level of greenhouse gases in the atmosphere, which affects how much heat is absorbed by the planet.
Natural forces cause climate change too. For example, periods when the Earth is closer to the Sun or farther from it can alter how much energy is received by its surface. As a result, temperatures vary across the globe.