Weather is a condition of the atmosphere that describes a region’s properties like humidity, air temperature, wind speed, cloud cover, precipitation, etc. On the Earth, almost every weather phenomenon happens in the bottom layer of the atmosphere called the troposphere. Weather sheds light on whether the region is cold or hot, calm or stormy, dry or wet. In the case of climate, it is an average of all atmospheric conditions over a long period of time.
Weather is driven by temperature, air pressure, and moisture variations between one region and another. Such differences can arise due to the Sun’s angle at any particular point, which differs with latitude. The solid temperature contrast between tropical and polar air paves the way for the biggest scale atmospheric flow: the Ferrel Cell, the jet stream and the polar cell. Weather phenomena in the middle latitudes, like extratropical cyclones, are generated due to the fluctuations of the jetstream streamflow. It is because the Earth’s axis is slightly tilted compared to its orbital plane. Sunlight hits at various angles at different parts of the year. On the surface of the Earth, temperatures generally range from -40 °C to +40 °C yearly. Over millions of years, variations in the orbit of the Earth influenced the quantity and distribution of solar energy accumulated by the Earth. Thus, it has a long-lasting influence on global climate change. Surface temperature variations, in turn, create pressure differences. Higher regions are cooler than lower regions, as the bulk of the atmospheric heating is a consequence of the exposure to the Earth’s surface.
Weather forecasting is the prediction of the weather by the application of physics principles supplemented by a number of empirical and statistical methods. The Weather system is a chaotic network. Small fluctuations to one part of the system can evolve to have a large influence on the system as a whole. Human attempts to master the weather have transpired throughout history. There is plenty of evidence that human affairs such as industry and agriculture have altered weather patterns.
Studying how the weather functions on other planets has been very useful in grasping how weather operates on the Earth. The Great Red Spot on Jupiter is a gigantic storm that has been known for the last 300 years. In fact, the weather is not limited to planets. The Sun’s corona is continuously being lost to outer space, creating a thin atmosphere all over the Solar System. The motion of matter expelled from the Sun is called the solar wind. This mass ejection can cause significant changes in the Earth’s weather patterns.
The video explains the concepts of weather forecasting.
Weather Forecast | Magic or Science? | Learn With BYJU’S
Important Weather Questions with Answers
1) What is meant by weather?
Weather is a condition of the atmosphere that describes a region’s properties like humidity, air temperature, wind speed, cloud cover, precipitation, etc. On the Earth, almost every weather phenomenon happens in the bottom layer of the atmosphere called the troposphere. Weather sheds light on whether the region is cold or hot, calm or stormy, dry or wet. In the case of climate, it is an average of all atmospheric conditions over a long period of time.
2) What is meant by climate?
Climate is the average of all atmospheric conditions over a long period of time.
3) What are the factors that control the weather?
Weather is driven by temperature, air pressure, and moisture variations between one region and another. Such differences can arise due to the Sun’s angle at any particular point, which differs with latitude. The solid temperature contrast between tropical and polar air paves the way for the biggest scale atmospheric flow: the Ferrel Cell, the jet stream and the polar cell.
4) Explain the temperature distribution on the Earth.
On the surface of the Earth, temperatures generally range from -40 °C to +40 °C yearly. Over millions of years, variations in the orbit of the Earth influenced the quantity and distribution of solar energy accumulated by the Earth. Thus, it has a long-lasting influence on global climate change. Surface temperature variations, in turn, create pressure differences. Higher regions are cooler than lower regions, as the bulk of the atmospheric heating is a consequence of the exposure to the Earth’s surface.
5) What is meant by weather forecasting?
Weather forecasting is the prediction of the weather by the application of physics principles supplemented by a number of empirical and statistical methods. The Weather system is a chaotic network. Small fluctuations to one part of the system can evolve to have a large influence on the system as a whole. Human attempts to master the weather have transpired throughout history. There is plenty of evidence that human affairs such as industry and agriculture have altered weather patterns.
6) What is the importance of studying the weather systems of other planets?
Studying how the weather functions on other planets has been very useful in grasping how weather operates on the Earth. The Great Red Spot on Jupiter is a gigantic storm that has been known for the last 300 years. In fact, the weather is not limited to planets. The Sun’s corona is continuously being lost to outer space, creating a thin atmosphere all over the Solar System. The motion of matter expelled from the Sun is called the solar wind. This mass ejection can cause significant changes in the Earth’s weather patterns.
7) Why are higher altitudes colder than lower altitudes?
Higher altitudes are normally colder than lower altitudes, which is the consequence of higher radiational heating and surface temperature, which generates the adiabatic lapse rate. But in a few scenarios, the temperature may increase with height, known as inversion. It causes mountain peaks to be colder than the valleys below. Inversions may lead to the generation of fog and usually behave as a cap that restrains the development of thunderstorms.
On regional scales, temperature variations can arise due to different surfaces such as forests, ice sheets, oceans or artificial surfaces. It is also influenced by characteristics like roughness, moisture content or reflectivity.
8) What are the main tools used for weather forecasting?
The main tools used for weather forecasting are Doppler radar, Satellite data, Radiosondes, Automated surface-observing systems, Supercomputers, AWIPS (NOAA’s Advanced Weather Information Processing System), etc.
9) Who is the founder of meteorology?
Aristotle is regarded as the founder of meteorology.
10) Who invented the mercury barometer?
Evangelista Torricelli invented the mercury barometer.
|
Related Topic |
|---|
Practice Questions
1) What is meant by land breeze?
2) What is meant by sea breeze?
3) What are the weather phenomena happening in the troposphere?
4) Explain a few types of weather conditions.
5) What is the difference between weather and climate?
Stay tuned to BYJU’S and Fall in Love with Learning!
Comments