Dr J. L. Evans

Fall 1997

34. Equatorial Wave Theory (Wednesday, 12 November)

1. The equatorial plane approximation
2. Shallow water equations, linearized about a state of no motion
3. Equatorially-trapped Kelvin waves: v=0
4. Mathematical solution for horizontal structure of Kelvin waves

35. Forecasting Challenges for Tropical Cyclones - Visit with Dr Lixion Avila (Thursday, 13 November)

• Special class to discuss current forecast challenges facing hurricane forecasters and research goals to meet these challenges.
• You have all been forecasting storms for a couple of months now, so should all have something to contribute to this discussion!

36. Dr Young's Hurricane Game Plus Project 2 Talks (Friday, 14 November)

• Continuing with Project 2 talks
• Dr Young's Hurricane Game is designed to test your awareness of the public safety and property protection aspects of hurricane track forecasting. We will forecast the motion of an Atlantic tropical storm, including issuing watches and warnings on the storm.

37. Forecasting Practicum (Monday, 17 November)

• This is the last forecasting practicum we will do. Completed forecast logs are due to me for final grading by Thursday, 20 November - i.e. later this week.

38. Equatorial Wave Theory II (Wednesday, 12 November)

1. Complete the mathematical solution for horizontal Kelvin wave structure
2. Schematic of a Kelvin wave
3. Scalings for Equatorially-trapped Kelvin waves: Timing of El Niño
4. Vertical structure of Kelvin waves

39. Equatorial Wave Theory III Plus Last Project 2 Talks (Friday, 21 November)

• Final Project 2 talks
  1. Coastally-trapped Kelvin waves - motion out of the tropics
  2. Rossby and mixed Rossby-gravity waves in the tropics
  3. Schematic of a mixed Rossby-gravity wave

40. The Madden-Julian Oscillation (Monday, 24 November)

• Term papers 2 and 3 due in class
  1. Observed structure of the Madden-Julian Oscillation
  2. Relationship to broader scales

Class Cancelled (By University) for Thanksgiving (Wednesday, 26 November)

• No class today

Class Cancelled (By University) for Thanksgiving (Friday, 28 November)

• No class today

41. Review of Projects 3 (Monday, 1 December)

• Review of Projects 3: All class members are expected to have read everyone's project 3 and to come ready to offer constructive criticisms of each other's work. You will each hand to me a grade sheet for the class. I will not give this information out to anyone.
• My aim here is to have you all understand the process of evaluation and what makes a successful project. If these projects are done well, you should all walk away with an improved understanding of the tropical climate and of the variations of the climate over one season.

42. Tropical Convection (Wednesday, 3 December)

• Final versions of Project 3 due today
  1. Timing of tropical convection over land, islands and water
  2. Effects of tropical convection on the atmosphere

43. Last Class!! (Friday, 5 December)

• This is our last class for the semester. Content will be based on needs.

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