General Circulation of the Atmosphere Current Weather/Dorian Update Finish Temperature Wind Essentials   Idealized Global Circulation   Seasonal and Regional Modification For Monday: Read Chapter 5: pp. 142-151 Reminder: Exam I on Friday (9/13)! Review Sheet is posted on AsUlearn.

Discussion Where are the coldest places in the world in January? Why? Where are the coldest places in the world in July? Why? What locations have the greatest Annual Temperature Range?

Chapter 4, Figure 4.29 Labeled

Coldest Village on Earth https://www.washingtonpost.com/news/capital-weather-gang/wp/2018/01/16/in-the-coldest-village-on-earth-eyelashes-freeze-dinner-is-frozen-and-temperatures-sink-to-88f/

Chapter 4, Figure 4.30 Labeled

Chapter 4, Figure 4.31 Labeled

Chapter 4, Figure 4.32 Labeled

What is Wind?

Pressure Gradient Figure 6.7

Coriolis Force Chapter 5, Figure 5.8 Labeled

Coriolis Force Figure 6.9

Chapter 5, Figure 5.9 Labeled

Energy Budget by Latitude Figure 4.13

Idealized Global Circulation Model ITCZ – Inter-Tropical Convergence Zone STHP – Sub-Tropical High Pressure SPLP – Sub-Polar Low Pressure PHP – Polar High Pressure

Seasonal Patterns Location of the sun’s noon-time vertical rays (i.e., where the sun is directly overhead) helps to control the position of the ITCZ Northern Hemisphere summer, ITCZ and all of the wind and pressure belts migrate to the north North Hemisphere winter, ITCZ and all of the wind and pressure belts migrate to the south

Chapter 5, Unnumbered Figure 1, Page 130 Labeled

Chapter 5, Unnumbered Figure 1, Page 131 Labeled

General Atmospheric Circulation Figure 6.12

General Atmospheric Circulation Figure 6.12

Global Barometric Pressure Figure 6.10

Global Barometric Pressure Figure 6.10

June–July ITCZ Figure 6.11

Rossby Waves Giant meanders in upper-level wind patterns: can range from small to large (zonal to meridional flow) Figure 6.16

Location of Polar Front and Sub-Polar Low Pressure

March 13, 1993

Chapter 5, Figure 5.19 Labeled

Chapter 5, Figure 5.18 Labeled

Monsoonal Winds Figure 6.20

Major Ocean Currents Figure 6.21