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Ch. 10 Sec. 3 Sea & Land Breezes

Added Jan 15, 2016 •

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here's a riddle for you what's something you can't see but something you can feel I'll give you a hint it sounds a bit like this  hold onto your hats today we're talking about wind last time we learned about Haviland absorbs more energy from the Sun than the water does and it turns out this unequal heating of the earth's surface is what is wind you heard me wind is part of the atmosphere but it's often caused by two of the other spheres the geosphere and hydrosphere remember those what is wind and how does the sun's energy created well when does air in motion is the large amounts of air usually from a high pressure area when I say pressure in the atmosphere on an object what time is where you are right now how much pressure the air exerts on stuff mainly has to do with its temperature specifically cool air produces high air pressure and warm air produces low air so with all that in mind let's take a look at how the hydrosphere and geosphere can work together to create wind a good place to start is that same Beach but we visited in the last lesson where the land absorbs more of the sun's heat to what has a higher temperature those warmer landforms heat the air above them and that hot air has lower air pressure mean while the nearby water absorb less heat and is cooler so it heats the air less and create higher air pressure when those two environments with different temperatures and different pressures are basically next door to each other one place to another to try to balance out the differences you and I call that rushing air when does this win cycle stay the same all day everyday nope but it does follow up if you want to see how that win Cycleworks I hope you pack your jammies cuz we're going to have a sleepover on the beach there's a little beach during the daytime with the hot sand on one side and the cool ocean right next to it when the sun shining down on at the land heats up faster than the ocean the warmer the land rises in the heavier cool air from the water rushes in to take its place this causes what's called A sea breeze that blows from the ocean onto the land what if beach at night string the evening the land will cool down faster than the ocean and the opposite cycle will happen at night warm air over the water will rise in the heavier cool air from the blow out to the ocean this is called a land breeze this model is just one example of a common wind pattern there different kinds of winds all over the world but for the most part they follow pattern play some what conditions are like nearby  does air randomly moving from one place on Earth to another the movement of air that follows a pattern usually blowing from high pressure areas to low pressure areas and these patterns are caused by uneven heating on the earth's surfaces play look pretty tame don't be fooled when doesn't always just a gentle breeze the fastest winds on Earth occur inside tornadoes where they can reach a speed over 400 km per hour that's nothing compared to wind on other planets in our solar system Neptune has wings I can gusts up to 2000 km an hour when can you really powerful force of nature I guess say I'm a big fan and sorry if you got sand in your jammies but it was worth it to learn about the wind right

Uploaded by Greg Grammer.

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Ch. 10 Sec. 3 Sea & Land Breezes

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