METEOROLOGY
Roger K. Smith
1 INTRODUCTION TO THE TROPICS 3
1.1 The zonal mean circulation. . . 4
1.2 Data network inthe Tropics . . . 8
1.3 Field Experiments . . . 11
1.4 Macroscale circulations . . . 12
1.5 More on the WalkerCirculation. . . 18
1.6 El Ni~noand the Southern Oscillation . . . 19
1.7 The Madden-Julian/IntraseasonalOscillation. . . 24
1.8 More on Monsoons . . . 28
1.8.1 The Regional Theory . . . 28
1.8.2 The Planetary Theory . . . 28
1.9 Monsoonvariability . . . 30
1.10 Synoptic-scale disturbances . . . 30
2 EQUATIONS AND SCALING AT LOW LATITUDES 36 2.1 The governing equationson asphere . . . 36
2.2 The hydrostatic equationat low latitudes . . . 38
2.3 Scaling atlow latitudes . . . 41
2.4 Diabaticeects, radiativecooling . . . 43
2.5 Some further notes onthe scalingat lowlatitudes . . . 48
2.6 The weak temperaturegradient approximation . . . 49
3 MORE ON DIABATIC PROCESSES 51 4 THE HADLEY CIRCULATION 59 4.1 The Held-Hou Model of the Hadley Circulation. . . 60
4.2 Extensions tothe Held-Hou Model . . . 64
5 WAVES AT LOW LATITUDES 73 5.1 The equatorial beta-plane approximation . . . 78
5.2 The Kelvin Wave . . . 79
5.3 Equatorial Gravity Waves . . . 80
5.4 Equatorial Rossby Waves . . . 81
5.5 The mixed Rossby-gravity wave . . . 81
5.6 The planetary wave motions . . . 86
5.7 Baroclinic motions inlow latitudes . . . 88
6 Forced Equatorial Waves 97 6.1 Response to steady forcing . . . 97
