Monsoons.

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Presentation transcript:

Monsoons

Monsoon Flow Patterns (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Thickness View of the Monsoon (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Force Balances: Impact of Friction (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Symmetric Heating: Walker Circulation heat forcing (u,v) - vectors w - contours (u,v) - vectors p - contours Meridionally-integrated flow (Figure obtained from Gill (1980), © 1980 Royal Meteorological Society/Wiley Interscience.)

Symmetric Heating: Hadley Circulation zonal velocity streamfunction pressure perturbation (Figure obtained from Gill (1980), © 1980 Royal Meteorological Society/Wiley Interscience.)

Recall: n = 1 ER and n = 0 MRG Waves n = 1 ER Wave n = 0 MRG Wave (Figure obtained from Matsuno (1966), their Figures 4c and 6b. © 1966, J. Meteor. Soc. Japan.)

n = 2 Equatorial Rossby Waves Location of maximized speed convergence Winds maximized near equator and decay rapidly N/S from there Negligible cross-equatorial flow Location of maximized divergence (Figure obtained from Matsuno (1966), their Figure 5c. © 1966, J. Meteor. Soc. Japan.)

Asymmetric Heating: Monsoon heat forcing (u,v) - vectors w - contours (u,v) - vectors p - contours (Figure obtained from Gill (1980), © 1980 Royal Meteorological Society/Wiley Interscience.)

Asymmetric Heating: Monsoon zonal velocity streamfunction pressure perturbation (Figure obtained from Gill (1980), © 1980 Royal Meteorological Society/Wiley Interscience.)

Symmetric + Asymmetric Solution (u,v) - vectors w - contours (u,v) - vectors p - contours (Figure obtained from Gill (1980), © 1980 Royal Meteorological Society/Wiley Interscience.)

Asian Monsoon: Structure Shaded: OLR (lower: more convective) Vector: 850 hPa Winds (m s-1) Streamlines: 200 hPa Winds (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Asian Monsoon: Key Features (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Asian Monsoon: Normal Onset Date (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Asian Monsoon: Precipitation Near India W. Pacific Ocean (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Oceanic Transport: Asian Monsoon Grey arrows: oceanic transport at the bottom of the oceanic mixed layer (~45° in layer-average, ~90° at bottom of layer) (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Mei-yu/Baiu Front (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Mei-yu/Baiu Front: Precipitation Total Rainfall Mei-yu/Baiu-related Rainfall (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Monsoon Trough (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Structure of the Australian Monsoon Shaded: OLR (lower: more convective) Vector: 850 hPa Winds (m s-1) Streamlines: 200 hPa Winds (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Oceanic Transport: Australian Monsoon Grey arrows: oceanic transport at the bottom of the oceanic mixed layer (~45° in layer-average, ~90° at bottom of layer) (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Australian/Maritime Continent Monsoon (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

West African Monsoon NH Summer SH Summer Shaded: OLR (lower: more convective) Vector: 850 hPa Winds (m s-1) Streamlines: 200 hPa Winds (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Monsoons of the Americas North American Monsoon South American Monsoon (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

North American Monsoon (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

South American Monsoon (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Indian Ocean Dipole (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)

Active and Break Periods Convection Modulation Red: suppressed Blue: enhanced active (Figure obtained from Introduction to Tropical Meteorology, 2nd Edition, © 2016 COMET.)