Global atmospheric circulation and heat transfer Flashcards
Where do winds transfer heat to
The equator to the poles
How does the sun heat the earths surface unevenly
-… (the solar … that reaches the … surface) is … at the e… than the …
-insolation (the solar radiation that reaches the earths surface) is greater at the equator than the poles
What do differences in temperature cause
Differences in air pressure
What areas to winds blow
From … of … pressure to areas of low …
-helps … heat … from the … redistributing it around the …
-From areas of high pressure to areas of low pressure
-helps transfer heat away from the equator redistributing it around the earth
What are winds apart of
-Global … circulation l… called c…
-these loops have … rising air which creates a low … belt, and … sinking air creates a … pressure …
-Global atmospheric circulation loops called cells
-these loops have warm rising air which creates a low pressure belt, and cool sinking air creates a high pressure belt
What are the three cells in each hemisphere
Hadley, Ferrell, polar
Process of atmospheric circulation
1. … warms the … at the equator, transferring … to air a… causing it to … creating a low … belt, as it … it cools and … forming … and r…
2.the … dry air moves away from …, at …o N and … of the … this air s… creating a … pressure belt with c… skies and … rainfall
3. Cool air reaches the … and moves as … winds to the … or the p…
- At 60o … and S of the … the w… surface winds meet colder air from the p…, the warmer air is less … than the cold air so … creating low … and rain
5.at the p… the cool air … creating … pressure, the air in this high … area is drawn back to … of … pressure near the … as surface …
- Sun warms the earth at the equator, transferring heat to air above causing it to rise creating a low pressure belt, as it rises it cools and condenses forming clouds and rain
2.the cool dry air moves away from equator, at 30o N and S of the equator this air sinks creating a high pressure belt with cloudless skies and low rainfall
3. Cool air reaches the ground and moves as surface winds to the equator or the poles
- At 60o N and S of the equator the warmer surface winds meet colder air from the poles, the warmer air is less dense that the cold air to rises creating low pressure and rain
5.at the poles the cool air sinks creating high pressure, the air in this high pressure area is drawn back to areas of low pressure near the equator as surface winds
Environment in high pressure belts
Low rainfall and cloudless skies
Environment in low pressure belts
Clouds and rain
What are surface winds blowing towards the equator called
T… w…
Trade winds
Where do trade winds blow from
From the … in the southern … and from the .E in the … hemisphere
From the SE in the southern hemisphere and from the NE in the northern hemisphere
What happens when the trade winds meet
-they meet at the …
-… from the sun causes them to … and form …
-they meet at the equator
-heat from the sun causes them to rise and form clouds
What are surface winds blowing towards the poles called
W…
Westerlies
Where do westerlies blow from
The .W in the … hemisphere and from the … in the northern …
The NW in the southern hemisphere and from the SW in the northern hemisphere
What are ocean currents
… scale m… of water that transfer … energy from … to cooler regions
Large scale movements of water that transfer heat energy from warmer to cooler regions
What are surface currents cause by
Winds
What do surface currents help transfer heat away from
The equator
What are deep ocean currents driven by
Differences in w… d…
Differences in water density
What happens to water when it freezes at the poles
-The surrounding … gets … increasing its …
-as it gets denser it … causing … water to flow to the … creating a c…
-the warmer … is … and sinks continuing the …
-this cycle moves … in a big … around the ..
-known as t… circulation
-The surrounding water gets saltier increasing it’s density
-as it gets denser it sinks causing warmer water to flow to the surface creating a current
-the warmer water is cooled and sinks continuing the cycle
-this cycle ,moves water in a big loop around the earth
-known as thermohaline circulation
What is thermohaline circulation
-it’s a … where … cools and … moving water in a big … around the …
-it’s a cycle where water cools and sinks moving water in a big loop around the earth
