Part I: Modelling Large-scale Oceanic and Atmospheric Flows: From Primitive to Rotating Shallow-Water Equations and Beyond |
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3 | (3) |
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2 Primitive Equations Model |
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6 | (23) |
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6 | (1) |
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2.2 A crash course in fluid dynamics |
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6 | (8) |
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6 | (7) |
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2.2.2 Real fluids: incorporating molecular transport |
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13 | (1) |
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2.3 Rotation, sphericity, and tangent plane approximation |
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14 | (3) |
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2.3.1 Hydrodynamics in the rotating frame with gravity |
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14 | (1) |
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2.3.2 Hydrodynamics in spherical coordinates and the 'traditional' approximation in GFD |
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15 | (2) |
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2.3.3 The tangent plane approximation |
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17 | (1) |
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2.4 Primitive equations in the oceanic and atmospheric context |
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17 | (10) |
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18 | (1) |
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2.4.2 Atmospheric context |
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19 | (3) |
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2.4.3 Remarkable properties of the PE dynamics |
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22 | (4) |
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2.4.4 What do we lose by assuming hydrostatics? |
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26 | (1) |
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2.5 Summary, comments, and bibliographic remarks |
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27 | (1) |
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28 | (1) |
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3 Simplifying Primitive Equations: Rotating Shallow-Water Models and their Properties |
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29 | (20) |
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3.1 Vertical averaging of horizontal momentum and mass conservation equations |
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29 | (4) |
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33 | (3) |
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3.2.1 One-layer RSW model |
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33 | (1) |
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3.2.2 Two-layer RSW model with a rigid lid |
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34 | (1) |
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3.2.3 Two-layer RSW model with a free upper surface |
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34 | (2) |
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3.2.4 RSW model on the sphere |
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36 | (1) |
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3.3 Vortices and waves in rotating shallow-water models |
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36 | (6) |
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3.3.1 One-layer RSW model |
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36 | (4) |
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3.3.2 Two-layer RSW model |
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40 | (2) |
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3.4 Lagrangian approach and variational principles for shallow-water models |
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42 | (5) |
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3.4.1 Lagrangian formulation of one-layer RSW |
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42 | (4) |
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3.4.2 Lagrangian formulation of two-layer RSW |
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46 | (1) |
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3.5 Summary, comments, and bibliographic remarks |
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47 | (1) |
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48 | (1) |
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4 Wave Motions in Rotating Shallow Water with Boundaries, Topography, at the Equator, and in Laboratory |
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49 | (37) |
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4.1 Introducing lateral boundaries and shelf |
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49 | (8) |
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4.1.1 Kelvin waves in RSW with an idealised coast |
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49 | (3) |
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4.1.2 Waves in RSW with idealised coast and a shelf |
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52 | (5) |
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4.2 Waves over topography/bathymetry far from lateral boundaries |
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57 | (5) |
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57 | (2) |
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4.2.2 Mountain (lee) waves in RSW |
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59 | (3) |
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4.3 Waves in outcropping flows |
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62 | (5) |
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67 | (10) |
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4.4.1 Equatorial waves in one-layer model |
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67 | (8) |
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4.4.2 Waves in two-layer RSW with a rigid lid on the equatorial beta plane |
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75 | (2) |
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4.5 Waves in rotating annulus |
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77 | (6) |
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4.5.1 RSW in cylindrical geometry |
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77 | (2) |
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4.5.2 Analytic solution of the eigenvalue problem |
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79 | (4) |
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4.6 Summary, comments, and bibliographic remarks |
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83 | (2) |
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85 | (1) |
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5 Getting Rid of Fast Waves: Slow Dynamics |
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86 | (31) |
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5.1 General properties of the horizontal motion. Geostrophic equilibrium |
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86 | (2) |
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5.2 Slow dynamics in a one-layer model |
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88 | (8) |
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5.2.1 Derivation of the QG equations |
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88 | (2) |
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5.2.2 Rossby waves and vortex dynamics: beta plane vs f plane |
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90 | (1) |
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5.2.3 QG dynamics in the presence of topography. Mountain Rossby waves |
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91 | (4) |
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5.2.4 Frontal geostrophic dynamics |
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95 | (1) |
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5.3 Slow dynamics in the two-layer model with a rigid lid |
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96 | (5) |
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5.3.1 Derivation of the QG equations |
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96 | (2) |
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5.3.2 Rossby waves in the two-layer QG model |
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98 | (1) |
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5.3.3 Baroclinic instability: first acquaintance |
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98 | (2) |
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5.3.4 Frontal geostrophic regimes |
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100 | (1) |
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5.4 Slow dynamics in two-layer model with a free surface |
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101 | (1) |
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5.4.1 Equations of motion, parameters, and scaling |
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101 | (1) |
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102 | (1) |
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5.5 Large-scale slow dynamics in the presence of wave guides |
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102 | (12) |
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5.5.1 A reminder on multi-scale asymptotic expansions |
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102 | (1) |
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5.5.2 Slow motions in the presence of a lateral boundary |
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103 | (3) |
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5.5.3 Slow motions over escarpment |
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106 | (2) |
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5.5.4 Slow motions at the equator |
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108 | (6) |
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5.6 Summary, comments, and bibliographic remarks |
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114 | (2) |
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116 | (1) |
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6 Vortex Dynamics on the f and beta Plane and Wave Radiation by Vortices |
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117 | (27) |
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6.1 Two-dimensional vortex dynamics |
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117 | (7) |
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6.1.1 2D Euler equations in stream-function-vorticity variables |
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117 | (2) |
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6.1.2 Lagrangian formulation of 2D hydrodynamics of a perfect fluid |
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119 | (1) |
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6.1.3 Dynamics of point vortices |
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120 | (1) |
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121 | (1) |
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6.1.5 Structure (Casimir)-preserving discretisations of vorticity equation in Fourier space |
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122 | (2) |
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6.2 Quasi-geostrophic modons in the 0-and f-plane approximations |
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124 | (10) |
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6.2.1 Influence of the beta effect upon a monopolar vortex |
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124 | (1) |
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6.2.2 Constructing QG modon solutions: one-layer case |
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125 | (2) |
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6.2.3 Constructing QG modon solutions: two-layer case |
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127 | (7) |
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6.3 A crash course in 2D turbulence |
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134 | (3) |
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6.3.1 Reminder on statistical description of turbulence |
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134 | (2) |
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6.3.2 Developed turbulence: energy and enstrophy cascades |
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136 | (1) |
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6.4 When vortices emit waves: Lighthill radiation |
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137 | (5) |
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6.4.1 2D hydrodynamics and vortex-pair solution in complex notation |
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138 | (1) |
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6.4.2 Gravity waves in cylindrical geometry |
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138 | (1) |
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6.4.3 Lighthill radiation |
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139 | (1) |
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6.4.4 Back-reaction of wave radiation |
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140 | (1) |
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6.4.5 Lighthill radiation in the presence of rotation |
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141 | (1) |
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6.5 Summary, comments, and bibliographic remarks |
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142 | (1) |
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143 | (1) |
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7 Rotating Shallow-Water Models as Quasilinear Hyperbolic Systems, and Related Numerical Methods |
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144 | (25) |
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145 | (14) |
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7.1.1 1.5-dimensional one-layer RSW model |
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145 | (1) |
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7.1.2 Lagrangian approach to the 1.5-dimensional model |
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145 | (2) |
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7.1.3 Quasilinear and hyperbolic systems |
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147 | (1) |
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7.1.4 Wave breaking in non-rotating and rotating one-layer RSW |
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148 | (2) |
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7.1.5 Hydraulic theory applied to rotating shallow water |
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150 | (3) |
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7.1.6 A brief description of finite-volume numerical methods for one-layer RSW |
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153 | (5) |
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7.1.7 Illustration: breaking of equatorial waves |
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158 | (1) |
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159 | (5) |
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7.2.1 1.5 dimensional two-layer RSW |
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159 | (1) |
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7.2.2 Characteristic equation and loss of hyperbolicity |
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160 | (2) |
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7.2.3 Rankine-Hugoniot conditions |
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162 | (1) |
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7.2.4 A finite-volume numerical method for two-layer RSW |
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163 | (1) |
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7.3 Summary, comments, and bibliographic remarks |
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164 | (2) |
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166 | (3) |
Part II: Understanding Fundamental Dynamical Phenomena with Rotating Shallow-Water Models |
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8 Geostrophic Adjustment and Wave-Vortex (Non)Interaction |
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169 | (28) |
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8.1 Geostrophic adjustment in the barotropic (one-layer) model |
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169 | (11) |
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8.1.1 Quasi-geostrophic regime |
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169 | (6) |
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8.1.2 Frontal geostrophic regime |
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175 | (5) |
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8.2 Geostrophic adjustment in the baroclinic (two-layer) model |
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180 | (3) |
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8.2.1 Quasi-geostrophic regime |
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180 | (1) |
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8.2.2 Frontal geostrophic regime |
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181 | (2) |
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8.3 Geostrophic adjustment in one dimension and the first idea of frontogenesis |
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183 | (8) |
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8.3.1 Theoretical considerations |
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183 | (6) |
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8.3.2 Numerical simulations: Rossby adjustment |
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189 | (2) |
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8.4 Geostrophic adjustment in the presence of boundaries, topography, and at the equator |
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191 | (3) |
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8.4.1 Geostrophic adjustment with a lateral boundary |
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191 | (1) |
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8.4.2 Geostrophic adjustment over escarpment |
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191 | (1) |
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8.4.3 Geostrophic adjustment in the equatorial beta plane |
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192 | (2) |
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8.5 Summary, comments, and bibliographic remarks |
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194 | (3) |
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9 RSW Modons and their Surprising Properties: RSW Turbulence |
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197 | (24) |
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9.1 QG vs RSW modons: one-layer model |
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197 | (6) |
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9.1.1 General properties of steady solutions |
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197 | (1) |
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9.1.2 'Ageostrophic adjustment' of QG modons |
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198 | (3) |
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9.1.3 Properties of RSW modons |
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201 | (2) |
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9.2 QG vs RSW modons: two-layer model |
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203 | (3) |
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9.2.1 Adjustment of barotropic QG modons |
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203 | (1) |
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9.2.2 Adjustment of baroclinic QG modons |
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204 | (1) |
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9.2.3 Adjustment of essentially ageostrophic modons |
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204 | (2) |
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206 | (2) |
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9.4 Interactions of RSW modons |
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208 | (5) |
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9.4.1 2 modons --> 2 modons collision |
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209 | (1) |
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9.4.2 2 --> 2 'loose' modon collision |
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209 | (1) |
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9.4.3 2 modons --> tripole collisions |
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210 | (1) |
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9.4.4 2 modons --> tripole + monopole collisions |
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210 | (3) |
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9.4.5 Collisions of shock modons |
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213 | (1) |
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213 | (6) |
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9.5.1 Set-up and initialisations |
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214 | (1) |
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9.5.2 General features of the evolution of the vortex system |
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215 | (3) |
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9.5.3 Non-universality of RSW turbulence |
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218 | (1) |
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9.6 Summary, comments, and bibliographic remarks |
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219 | (2) |
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10 Instabilities of Jets and Fronts and their Nonlinear Evolution |
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221 | (68) |
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10.1 Instabilities: general notions and techniques |
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221 | (5) |
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10.1.1 Definitions and general concepts |
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221 | (2) |
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10.1.2 (In)stability criteria for plane-parallel flows |
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223 | (2) |
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10.1.3 Direct approach to linear stability analysis of plane-parallel and circular flows |
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225 | (1) |
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10.2 Geostrophic barotropic and baroclinic instabilities of jets |
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226 | (6) |
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10.2.1 Barotropic instability of a Bickley jet on the f plane |
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226 | (2) |
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10.2.2 Baroclinic instability of a Bickley jet in the f plane |
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228 | (4) |
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10.3 Ageostrophic instabilities in the Phillips model: Rossby-Kelvin and shear instabilities |
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232 | (3) |
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10.4 Ageostrophic instabilities of jets and their nonlinear evolution |
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235 | (9) |
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235 | (6) |
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10.4.2 Nonlinear saturation of essentially ageostrophic instabilities |
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241 | (3) |
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10.4.3 A brief summary of the results on essentially ageostrophic instabilities of mid-latitude jets |
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244 | (1) |
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10.5 Understanding the nature of inertial instability |
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244 | (4) |
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10.6 Instabilities of jets at the equator and their nonlinear evolution, with emphasis on inertial instability |
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248 | (13) |
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10.6.1 Linear stability and nonlinear saturation of instabilities in one-layer RSW model at the equator |
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248 | (6) |
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10.6.2 Linear stability and nonlinear saturation of instabilities in two-layer RSW model at the equator |
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254 | (6) |
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10.6.3 A brief summary of the results on instabilities of equatorial jets |
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260 | (1) |
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10.7 Instabilities of coastal currents and their nonlinear evolution |
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261 | (14) |
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10.7.1 Passive lower layer: results of the linear stability analysis |
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261 | (1) |
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10.7.2 Passive lower layer: nonlinear evolution of the instability |
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262 | (4) |
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10.7.3 Active lower layer: results of linear stability analysis |
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266 | (3) |
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10.7.4 Active lower layer: nonlinear saturation of instabilities |
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269 | (4) |
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10.7.5 A brief summary of the results on instabilities of coastal currents |
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273 | (2) |
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10.8 Instabilities of double-density fronts and the role of topography |
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275 | (9) |
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10.8.1 Set-up, scaling, parameters, and boundary conditions |
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275 | (2) |
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10.8.2 Linear stability analysis |
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277 | (3) |
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10.8.3 Nonlinear saturation of the instabilities |
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280 | (3) |
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10.8.4 A brief summary of the results on instabilities of double fronts over topography |
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283 | (1) |
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10.9 Summary, comments, and bibliographic remarks |
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284 | (5) |
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11 Instabilities in Cylindrical Geometry: Vortices and Laboratory Flows |
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289 | (49) |
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11.1 Axisymmetric vortex solutions in rotating shallow water |
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290 | (2) |
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290 | (1) |
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291 | (1) |
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11.2 Instabilities of isolated quasi-geostrophic vortices and their nonlinear evolution |
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292 | (7) |
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11.2.1 One-layer configuration, barotropic vortices |
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292 | (3) |
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11.2.2 Two-layer configuration, baroclinic upper-layer vortex |
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295 | (4) |
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11.3 Instabilities of ageostrophic vortices and their nonlinear evolution |
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299 | (11) |
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11.3.1 General considerations |
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299 | (1) |
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11.3.2 Results of the linear stability analysis |
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300 | (5) |
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11.3.3 Nonlinear saturation of the instabilities |
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305 | (5) |
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11.4 Instabilities of intense hurricane-like vortices and their nonlinear evolution |
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310 | (7) |
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11.4.1 Idealised rotating shallow-water hurricane |
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311 | (2) |
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11.4.2 Results of the linear stability analysis |
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313 | (1) |
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11.4.3 Nonlinear saturation of the hurricane's instability |
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314 | (3) |
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11.4.4 A brief summary of the results on instabilities of idealised hurricanes |
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317 | (1) |
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11.5 Instabilities of laboratory flows in rotating annuli |
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317 | (19) |
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11.5.1 Stability of two-layer flows under the rigid lid |
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317 | (8) |
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11.5.2 Stability of flows in rotating annulus with outcropping and topography |
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325 | (10) |
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11.5.3 A brief summary of the results of analysis of instabilities in the rotating annulus |
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335 | (1) |
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11.6 Summary, comments, and bibliographic remarks |
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336 | (2) |
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12 Resonant Wave Interactions and Resonant Excitation of Wave-guide Modes |
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338 | (41) |
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12.1 Resonant wave triads: first acquaintance |
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338 | (3) |
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12.1.1 Perturbation theory for Rossby waves |
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338 | (2) |
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12.1.2 Wave resonances and wave modulation |
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340 | (1) |
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12.2 Resonant excitation of trapped coastal waves by free inertia-gravity waves |
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341 | (23) |
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12.2.1 Resonant excitation of wave-guide modes: general philosophy |
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341 | (1) |
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12.2.2 Resonant excitation of Kelvin waves by free inertia-gravity waves at abrupt shelf: barotropic model |
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342 | (5) |
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12.2.3 Resonant excitation of Kelvin waves by free inertia-gravity waves at abrupt shelf: baroclinic model |
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347 | (8) |
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12.2.4 Resonant excitation of coastal waves by free inertia-gravity waves at the shelf with gentle slope |
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355 | (9) |
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12.3 Resonant excitation of baroclinic Rossby and Yanai waves in the equatorial wave guide |
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364 | (12) |
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12.3.1 Reminder on two-layer equatorial RSW and general conditions of removal of resonances |
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364 | (1) |
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12.3.2 Wave-wave resonances |
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365 | (7) |
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12.3.3 Wave mean current resonances |
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372 | (4) |
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12.4 Summary, comments, and bibliographic remarks |
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376 | (3) |
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379 | (30) |
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13.1 The main hypotheses and ideas of the wave turbulence approach |
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379 | (10) |
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13.1.1 A reminder on Hamiltonian description of wave systems |
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379 | (4) |
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13.1.2 The principal idea of wave turbulence approach |
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383 | (1) |
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13.1.3 Kinetic equations for decay and non-decay dispersion laws |
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383 | (1) |
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13.1.4 Exact solutions of kinetic equations |
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384 | (4) |
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13.1.5 Conservation laws and dimensional estimates |
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388 | (1) |
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13.2 Applications of the wave turbulence theory to waves in rotating shallow water |
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389 | (12) |
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13.2.1 Wave turbulence of inertia-gravity waves on the f plane |
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389 | (4) |
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13.2.2 Weak turbulence of short inertia-gravity waves on the equatorial 8 plane |
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393 | (6) |
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13.2.3 Weak turbulence of the Rossby waves on the $ plane |
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399 | (2) |
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13.3 Turbulence of inertia-gravity waves in rotating shallow water: theory vs numerical experiment |
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401 | (2) |
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13.4 Historical comments, summary, and bibliographic remarks |
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403 | (6) |
Part III: Generalisations of Standard Rotating Shallow-water Model, and their Applications |
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14 Rotating Shallow-Water model with Horizontal Density and/or Temperature Gradients |
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409 | (12) |
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14.1 Derivation of the thermal rotating shallow-water model and its properties |
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409 | (5) |
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14.1.1 Derivation of the model |
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409 | (2) |
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14.1.2 Gas dynamics analogy |
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411 | (1) |
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14.1.3 Waves and vortices |
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411 | (1) |
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14.1.4 Quasi-geostrophic TRSW |
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412 | (1) |
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14.1.5 Variational principle for TRSW |
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413 | (1) |
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14.2 Instabilities of jets and vortices in thermal rotating shallow water |
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414 | (5) |
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14.2.1 New instabilities in TRSW: first example |
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414 | (1) |
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14.2.2 Instabilities of thermal vortices in TRSW |
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414 | (1) |
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14.2.3 Stationary vortex solutions |
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415 | (1) |
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14.2.4 Results of the linear stability analysis of a thermal cyclone |
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415 | (3) |
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14.2.5 Nonlinear saturation of the instability |
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418 | (1) |
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14.2.6 Discussion of the results |
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419 | (1) |
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14.3 Summary, comments, and bibliographic remarks |
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419 | (2) |
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15 Rotating Shallow-Water Models with Moist Convection |
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421 | (25) |
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15.1 Constructing moist-convective shallow-water models |
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421 | (6) |
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15.1.1 General context and philosophy of the approach |
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421 | (1) |
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15.1.2 Introducing moisture in primitive equations |
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422 | (1) |
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15.1.3 Vertical averaging with convective fluxes |
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422 | (2) |
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15.1.4 Linking convection and condensation |
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424 | (1) |
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15.1.5 Surface evaporation and its parameterisations |
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425 | (1) |
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15.1.6 Two-layer model with a dry upper layer and its one-layer limit |
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426 | (1) |
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15.2 Properties of moist-convective RSW models |
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427 | (3) |
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427 | (2) |
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429 | (1) |
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15.3 Mathematics of moist-convective rotating shallow water |
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430 | (4) |
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15.3.1 Quasilinear form and characteristic equations |
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430 | (2) |
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15.3.2 Discontinuities and Rankine-Hugoniot conditions |
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432 | (1) |
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15.3.3 Illustration: wave scattering on a moisture front |
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432 | (2) |
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15.4 Applications to 'moist' instabilities of geostrophic jets and vortices |
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|
434 | (5) |
|
15.4.1 Moist instability of the baroclinic Bickley jet |
|
|
434 | (1) |
|
15.4.2 Moist instability of geostrophic vortices |
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|
435 | (4) |
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15.5 Moist dynamics of tropical cyclone-like vortices |
|
|
439 | (2) |
|
15.6 Summary, discussion, and bibliographic remarks |
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|
441 | (5) |
|
16 Rotating Shallow-Water Models with Full Coriolis Force |
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|
446 | (29) |
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16.1 'Non-traditional' rotating shallow-water model in the tangent plane approximation |
|
|
446 | (4) |
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16.1.1 Vertical averaging of 'non-traditional' primitive equations |
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|
446 | (3) |
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16.1.2 Non-traditional RSW models |
|
|
449 | (1) |
|
16.2 'Non-traditional' rotating shallow-water model on the sphere |
|
|
450 | (13) |
|
16.2.1 Including the effects of curvature in the RSW with full Coriolis force |
|
|
450 | (2) |
|
16.2.2 Variational principle for the primitive equations in spherical geometry |
|
|
452 | (3) |
|
16.2.3 Characteristic scales and parameters |
|
|
455 | (1) |
|
16.2.4 Columnar motion reduction in the variational principle |
|
|
456 | (4) |
|
16.2.5 Derivation of the non-traditional rotating shallow-water equations |
|
|
460 | (3) |
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16.3 Example of crucial influence of non-traditional corrections: inertial instability with full Coriolis force |
|
|
463 | (9) |
|
16.3.1 Inertial instability with full Coriolis force: theoretical considerations |
|
|
463 | (4) |
|
16.3.2 Inertial instability with full Coriolis force: direct approach to the linear stability analysis |
|
|
467 | (5) |
|
16.4 Summary, discussion, and bibliographic remarks |
|
|
472 | (3) |
References |
|
475 | (10) |
Index |
|
485 | |