1. What is the main cause of wind movement? 2. Where do thunderstorms usually develop?
Dear Student
1. During the day, solar radiations heat up the land surface. This causes the air over land surface to heat up. The hot air expands and rises upwards. This vertical movement of air is known as convection current. A low pressure area is thus created over land surface.The solar radiations do not heat up water as fast as they heat up land. This is because water takes a longer time to heat up as compared to land.Therefore, during the day, when the air over the land surface is heated up, the air over the water surface is relatively cooler. This creates a high pressure area over the water surface.When the hot air over the land surface rises up, it creates a vacant space. This vacant space in the low pressure area (over the land) is occupied by the air present in the high pressure area (over the water).
Thus, the air over the water surface starts blowing towards the land surface during the day.
During the night, this situation gets reversed.
The land surface cools down much faster as compared to the water surface. Therefore, the air over land is cooler in comparison to the air over water. A high pressure area is thus created over the land surface and a low pressure area prevails over the water surface.
This causes wind to blow from the land surface towards the water surface during the night.
2. Thunderstorms can develop in any geographic location. Most frequently within the mid-latitude where the climate is warm, moist air from tropical latitudes collides with cooler air from polar latitudes.
Regards
Dear Student
1. During the day, solar radiations heat up the land surface. This causes the air over land surface to heat up. The hot air expands and rises upwards. This vertical movement of air is known as convection current. A low pressure area is thus created over land surface.The solar radiations do not heat up water as fast as they heat up land. This is because water takes a longer time to heat up as compared to land.Therefore, during the day, when the air over the land surface is heated up, the air over the water surface is relatively cooler. This creates a high pressure area over the water surface.When the hot air over the land surface rises up, it creates a vacant space. This vacant space in the low pressure area (over the land) is occupied by the air present in the high pressure area (over the water).
Thus, the air over the water surface starts blowing towards the land surface during the day.
During the night, this situation gets reversed.
The land surface cools down much faster as compared to the water surface. Therefore, the air over land is cooler in comparison to the air over water. A high pressure area is thus created over the land surface and a low pressure area prevails over the water surface.
This causes wind to blow from the land surface towards the water surface during the night.
2. Thunderstorms can develop in any geographic location. Most frequently within the mid-latitude where the climate is warm, moist air from tropical latitudes collides with cooler air from polar latitudes.
Regards
