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Lecture on the Cyclone

Lecture on the Cyclone. The cyclone. Cyclones: Putting it all together. There are two types of cyclones, tropical/warm core and extratropical/cold core. Extratropical cyclones are characterized by having differing air masses frontal movements where tropical cyclones do not.

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Lecture on the Cyclone

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  1. Lecture on the Cyclone www.assignmentpoint.com

  2. The cyclone www.assignmentpoint.com

  3. Cyclones: Putting it all together • There are two types of cyclones, tropical/warm core and extratropical/cold core. • Extratropical cyclones are characterized by having differing air masses frontal movements where tropical cyclones do not. • We will concern ourselves with extratropical cyclones in this presentation. www.assignmentpoint.com

  4. Cyclones: Putting it all together • Typically, cyclones are represented by using the Norwegian Cyclone model. It is simplistic, but a good way to start when understanding surface lows and cyclones. • Students must begin to understand the four dimensional view of a cyclone • North-South • East-West • Up-Down • Time www.assignmentpoint.com

  5. Cyclones: Norwegian Model • Step 1: A subtle boundary exists Surface View 3-D View www.assignmentpoint.com Images source: http://www.srh.noaa.gov/jetstream//synoptic/cyclone.htm

  6. Cyclones: Norwegian Model • Step 2: A wave forms on the boundary Surface View 3-D View www.assignmentpoint.com Images source: http://www.srh.noaa.gov/jetstream//synoptic/cyclone.htm

  7. Cyclones: Norwegian Model • Step 3: Cyclone becomes mature Surface View 3-D View www.assignmentpoint.com Images source: http://www.srh.noaa.gov/jetstream//synoptic/cyclone.htm

  8. Cyclones: Norwegian Model • Step 4: The occlusion process Surface View 3-D View www.assignmentpoint.com Images source: http://www.srh.noaa.gov/jetstream//synoptic/cyclone.htm

  9. Cyclones: Norwegian Model • Step 5: Cold air dominates, near the end. Surface View 3-D View www.assignmentpoint.com Images source: http://www.srh.noaa.gov/jetstream//synoptic/cyclone.htm

  10. Cyclone: On satellite www.assignmentpoint.com

  11. Cyclone www.assignmentpoint.com

  12. Cyclone • Radar & Satellite view of a cyclone Occlusion Occlusion Warm Front Warm Front Cold Front Cold Front www.assignmentpoint.com

  13. A cyclone centered just south of Wichita, KS. Fronts well developed www.assignmentpoint.com

  14. The cyclone six hours later, near Kansas City. A mature cyclone at this point with well developed fronts. Do you see them? www.assignmentpoint.com

  15. Another six hours, the cyclone (low) is beginning to occlude. The surface low is being surrounded by the colder air. www.assignmentpoint.com

  16. Another six hours, the cyclone (low) is now fully occluded. The surface low is completely within the colder air mass. www.assignmentpoint.com

  17. Another six hours, the cold front has surged well east while the center of the cyclone has remained over the Midwest. www.assignmentpoint.com

  18. Animation of a cyclone www.assignmentpoint.com

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