Monsoons A seasonally varying wind Created by a continental scale sea breeze Famously, the NE & SW Monsoons over the Indian subcontinent Other monsoons.

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Presentation transcript:

Monsoons A seasonally varying wind Created by a continental scale sea breeze Famously, the NE & SW Monsoons over the Indian subcontinent Other monsoons exist (American monsoon) Seasonal monsoon winds change circulation in the Indian Ocean (Somali Curent)

Sea Breezes

Monsoon Processes

Summer Winter SW Monsoon NE Monsoon

Monsoon Winds SW Monsoon NE Monsoon

Monsoon Winds SW Monsoon NE Monsoon

Position of the Low Level Jet

Features of Indian Monsoon Coastline borders largest land mass on planet & near the tropics Himalayas focus winds & create orographic rains Glacial storage of freshwater occurs Persistent low level winds (Somali or Findlater Jet)

SW Monsoon

NE Monsoon

Indian Ocean Circulation Far more complicated than Atlantic or Pacific Monsoon winds drive seasonal changes in observed currents in Arabian Sea Reversing currents include Somali, NEC & NECC Somali current reaches > 3.5 m/s Intense open ocean upwelling

The American Monsoon Occurrence of July Thunderstorms over NW Mexico & Arizona Driven by monsoon between Pacific Ocean & the American Desert Huge issue for flash floods

The American Monsoon Monthly precipitation over SW U.S. & Mexico

The American Monsoon July Convective Activity Index

The American Monsoon

Occurrence of July Thunderstorms over NW Mexico & Arizona Driven by monsoon between Pacific Ocean & the American Desert Huge issue for flash floods

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