ONLY NEED ANSWERS FOR 10, 11 AND 20

Post by **answerhappygod** » Thu Jun 09, 2022 2:14 pm

: Only Need Answers For 10 11 And 20 1 (125.96 KiB) Viewed 82 times

Figure 1 below is a (poorly drawn) image of the Northern Half of the world with select latitudes indicated. Print out Figure 1, and Draw/Label the left half of the image based on your answers above (i.e. label which latitude has high pressure/low pressure, rising air/sinking air, and what direction the wind is blowing in). Please leave the right half of the image unlabeled... we are going to use that next. 90°N 60°N 30°N Equator Figure 1-A simplified map of The Northern Half of the Earth You have just constructed the Single Celled model of the atmosphere. This model assumes that the Earth is a uniform ball of water, with no-tilt, and no rotation. However, it's a good first step in constructing the circulation of the atmosphere, and accurately models weather at both the Equator and Poles. Now let's try to verify what kind of pressure is near the equator. Go to: https://www.windy.com/- Show-add-more-layers/overlays?pressure, 19.145.-66.797.3 (this is best done on a computer, or by downloading the Windy.com App) What you should see by clicking on that link above is a map of surface pressure and wind patterns (the moving white lines). The map will look similar to figure 2 below. There is a lot to understand here, but for the moment, let's just focus on the color shading of the map: Green represents average air pressure, yellow/orange/red/brown indicate High Pressure, while purple/blue/light blue represent low pressure. 140
Search location. Windy.com +0 Login Radar & Satelite 6 Wind Rain, thunder Temperature Clouds Waves Air quality Pressure More layers Sunday 28-AM ECMWE 29.8 30.4 Tue 30 Wed MS Figure 2 - Map of North/South America, Atlantic and Eastern Pacific oceans taken from Windy.com 6. According to Figure 2, areas near the equator (especially over the ocean) have light greenish to blue shadings, indicating Pressure. a. Higher than Average b. Average to Below Average 7. This the single celled model, where low pressure is present along the equator. a. Contradicts b. Agrees with. With your browser still on Windy.com, click anywhere on the map, and drag the map until the display on the screen shows the northernmost (near the north pole) portion of the map. This displays the region nearest to the North Pole. 8. While there is some variation, the shadings over the northern portion of the map are mostly yellow/red/brown, indicating that present near the North Pole. pressure is generally a. High b. Low 9. This agree with the single celled model. b. Does Not. a. Does Now go down to Antarctica. Notice that the pressure over Antarctica is much different than the North Pole, and in fact often conflicts with the single celled model. 10. Written Question: Why do you think that surface pressures over Antarctica disagree with the conclusions of the single-celled model (hint: assumptions of the Single Cell model include a water-covered earth with no land, no rotation, and no tilt).
For the Single-Cell Model, there is no land, no rotation, and no tilt... three very important components of our planet's behavior. As a result, the single celled model can't tell us everything we need to know... it only gives us insight into conditions at the Equator and Poles. But let's bring rotation back into the equation. If Earth rotates, the Coriolis Force returns, which causes the single circulation between the equator and the poles to break up into three separate circulations: • The Hadley Cell: Rising Air over the equator, travels to 30°N and 30°S, where it sinks back to the surface, and back to the equator. • The Ferrell Cell: Sinking Air over 30°N and travels to 60°N where it rises to the tropopause and then returns to 30°N • The Polar Cell: Rising air over 60°N then travels to the pole, where it sinks back to the surface, and then returns to 60°N. 11. Written Question: On the right side of your print out of Figure 1, draw the three cells listed above. This investigation's video demonstration will include assistance with drawing the Hadley Cell. When you are finished, scan and upload your image to the answer sheet. 12. The pressure systems over the Equator and the Pole are the same as in the Single-Celled Model. However, in the three celled model, there is also surface pressure at 30°N/S, and surface pressure at 60°N/S (HINT: Air rises in low surface pressure, sinks in high surface pressure) a. High;Low b. Low;High c. High; High d. Low; Low 13. Returning to Figure 2, there is pressure over the oceans at about 30°N (off the coast of the United States is a good approximation for 30°N), and 30°S (near the bottom of the image, off the coasts of Southern Brazil and Argentina). c. Near Average a. High b. Low Figure 3 Is a screenshot of the same Windy.com map, but now centered over 60°S (We're going to look at the Southern Hemisphere because 60°N in the Northern Hemisphere is almost entirely land, which greatly disrupts the pressure pattern). A black line has been drawn at a latitude of 60°S
HH30°N .0⁰ (Equator) HH_30°S H H H H H + H H H H Figure 4-A map of surface High Pressure systems at 30° and Low pressure systems at the Equator. 16. The Pressure Gradient Force should direct the wind: a. From the Equator to 30°N/S b. From 30°N/S to the Equator Print out a copy of Figure 4, and draw arrows indicating the wind direction from question 16. 17. In the Northern Hemisphere, the Coriolis Force, which directs winds to the right (of their direction... not yours!), would turn the wind to the: a. East b. West 18. In the Southern Hemisphere, the Coriolis Force, which directs winds to the left (of their direction... not yours!) would turn the wind to the: a. East b. West Hint: Your answers for both 17 and 18 should be the exact same! 19. This results in a band of winds along the equator that travel a. From East to West b. From West to East These winds are called the trade winds, and are a crucial component to the Walker Circulation, which we will conver in Module 8B. 20. On your map, draw curved arrows that start like the arrows you have previous drawn, but curve in the direction you indicated in questions 17 and 19 due to the Coriolis force. Scan and upload this image