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Introduction — The MJO

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Background & Motivation 1: Impacts<br />

<strong>The</strong> <strong>MJO</strong> strongly influences...<br />

• Regional and global weather and climate patterns:<br />

• Asian, Australian monsoons<br />

• ENSO<br />

• Teleconnections - midlatitude weather, tropical cyclone distribution/frequency,<br />

polar oscillations<br />

• Earth’s rotation rate<br />

(length of day)<br />

Arctic Oscillation<br />

Rossby wave trains<br />

Asian Monsoon<br />

• Atmospheric and oceanic<br />

chemistry:<br />

<strong>The</strong> <strong>MJO</strong><br />

Slow moist Kelvin-Rossby wave<br />

Australian Monsoon<br />

(in northern summer)<br />

(ENSO)<br />

Fast dry Kelvin Wave<br />

• Ozone<br />

• Aerosols<br />

Rossby wave trains<br />

Antarctic Oscillation<br />

• Chlorophyll<br />

Tropical Cyclone<br />

Storm<br />

Courtesy: Kate Thayer-Calder, adapted from Lin et al. 2006

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