1 / 17

Global Circulation and World Climates

Global Circulation and World Climates. Weather vs. Climate Climate Controls Idealized Global Circulation Model Seasonal Variations Global Climates For Next Class : Read Chapter 2 (pp. 56-61 ). Questions. What is the difference between weather and climate?

amalia
Download Presentation

Global Circulation and World Climates

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Global Circulation and World Climates • Weather vs. Climate • Climate Controls • Idealized Global Circulation Model • Seasonal Variations • Global Climates For Next Class: Read Chapter 2 (pp. 56-61)

  2. Questions What is the difference between weather and climate? What are the major influences (or controls) on climate?

  3. Weather vs. Climate

  4. Climate Controls • Solar Energy • Latitude • Land and water contrasts • Maritime effect (proximity to major water bodies) • Continentality • Global wind and pressure systems • Idealized Global Circulation Model • Elevation*

  5. General circulation of the atmosphere and ocean is driven by latitudinal heating imbalances (i.e. surplus in tropics and deficit in polar regions)

  6. Idealized Global Circulation Model

  7. Idealized Global Circulation Model • ITCZ – Inter-Tropical Convergence Zone • STHP – Sub-Tropical High Pressure • Coriolis Effect – Caused by rotation of the Earth • Rightward deflection in Northern Hemisphere • Leftward deflection in Southern Hemisphere • SPLP – Sub-Polar Low Pressure • PHP – Polar High Pressure

  8. Idealized Global Circulation Model • Land and water contrasts • Maritime effect (proximity to major water bodies) • Continentality • Elevation • Latitude (solar energy) • Global wind and pressure systems (Idealized Global Circulation Model)

  9. Global Pressure Systems and Wind Patterns Figure 2.12

  10. General Circulation Figure 5-14

  11. Rossby Waves and Sub-Polar Low Pressure • Exact latitudinal position of the SPLP is highly variable and depends on the upper-level Polar Front Jet Stream.

  12. Blizzard of 1993 • Developed in association with an extremely amplified Rossby Wave. Note the strong cold front in Honduras!

  13. Seasonal Variations in Latitude Figure 5-36

  14. Modified Köppen System Figure 8-4

  15. Global Climate Regions Figure 2.13 Climograph

  16. Climographs Figure 8-6

More Related