why land breezes, sea breeze, wind and storm occur ?
Answers
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean. Now, recall that warmer air is lighter than cooler air. As a result, warm air rises. Therefore, the warmer air over the land surface is rising. As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air. This is the sea breeze and can be seen at the top of the following image. The bottom of the following image illustrates the land breeze that occurs at night. Recall that the land surface cools quicker than the water surface at night. Therefore, the warmer air over the ocean is buoyant and is rising. The denser cool air over the land is flowing offshore to replenish the buoyant warm air and is called a land breeze.
Storms occur because air, moisture, and heat are almost always in motion, due to a lack of equilibrium. When an air parcel (a local region of air with uniform properties) is relatively warm and moist, it ascends because it is lighter than surrounding air. As it ascends, it cools, and the moisture (i.e., water vapor) condenses into droplets, which collectively form clouds. Also, when the water vapor condenses, it releases a little bit of thermal energy called latent heat, which helps the parcel continue to ascend.
If this happens consistently enough, clouds form and grow; with other factors such as wind and heat, they can create a system we call a storm. Given the right conditions, storms can become very complex, involving different sorts of precipitation, wind shear, downdrafts, lightening, atmospheric rotation, and so much more!
Take a straw in your mouth and inhale. The difference of pressure between your mouth and outside will create a “wind” inside it!
And there you are: The wind is the result of a difference of pressure. The so-called gradient force brings the air from high to low pressure.
But there are other reasons. For example, in a mountainous region, during a windless night, the colder air from above, will sink in the valleys because denser. It can cause a wind called, a katabatic wind. In places like Greenland, where the cold air from the central glacier falls down in the coastal fjords, it has been known to blow so much as to destroy Inuit villages.
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean. Now, recall that warmer air is lighter than cooler air. As a result, warm air rises. Therefore, the warmer air over the land surface is rising. As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air. This is the sea breeze and can be seen at the top of the following image. The bottom of the following image illustrates the land breeze that occurs at night. Recall that the land surface cools quicker than the water surface at night. Therefore, the warmer air over the ocean is buoyant and is rising. The denser cool air over the land is flowing offshore to replenish the buoyant warm air and is called a land breeze.
Storms occur because air, moisture, and heat are almost always in motion, due to a lack of equilibrium. When an air parcel (a local region of air with uniform properties) is relatively warm and moist, it ascends because it is lighter than surrounding air. As it ascends, it cools, and the moisture (i.e., water vapor) condenses into droplets, which collectively form clouds. Also, when the water vapor condenses, it releases a little bit of thermal energy called latent heat, which helps the parcel continue to ascend.
If this happens consistently enough, clouds form and grow; with other factors such as wind and heat, they can create a system we call a storm. Given the right conditions, storms can become very complex, involving different sorts of precipitation, wind shear, downdrafts, lightening, atmospheric rotation, and so much more!
Take a straw in your mouth and inhale. The difference of pressure between your mouth and outside will create a “wind” inside it!
And there you are: The wind is the result of a difference of pressure. The so-called gradient force brings the air from high to low pressure.
But there are other reasons. For example, in a mountainous region, during a windless night, the colder air from above, will sink in the valleys because denser. It can cause a wind called, a katabatic wind. In places like Greenland, where the cold air from the central glacier falls down in the coastal fjords, it has been known to blow so much as to destroy Inuit villages.