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Mediterranean Climate

Humanities Climate Project

Hazel A.

on 20 April 2010

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Transcript of Mediterranean Climate

Mediterranean Climate How Does It Work? Climate Characteristics Where Can It Be Found? ("Santiago Chile Map of Santiago.") ("Grabov Rat: Maps and Views") Summer Winter Frost risk due to Continental Polar air masses
Mild and damp
Moisture due to prevailing westerlies (winds between 30° and 60° latitude)
Sunny days alternate with wet days that have strong winds
All Year Cool, foggy coastal areas
A lot of sunlight due to cloudless skies (cools quickly at night, dry weather)
Irregular rainfall
Great contrast between seasons
Flora and Fauna Example Country In order to adapt to dry, drought-prone weather in summer, there are many plants with small, thick leaves that help prevent waterloss. Sclerophyll Forests ("Mediterranean Climate") Dry Summer Subtropical Climate Western coast of subtropical continents and more than half of these regions exist along the coast of the Mediterranean Sea. This area has therefore been named the Mediterranean Basin. Subtropical High (30 - 35 Latitude in Northern and Southern Hemisphere)
High Pressure
Low precipitation
Variable Winds
Dry, hot weather (inland) that lasts up to 5 months
Temperature Precipitation Sea Climate (but great range over a summer day, due to rapid loss of heat at night)
Limited cloudcover, if any (summer)
Average monthly temperature is never below 0 degrees C
Three months temperature above 10 degrees C
Warmest months reach high 20 degrees C
Temperature Range = 7 degrees C (on average)

Suptropical high stops the forming of clouds
Cold currents on the U.S.A.'s west coast reduce chances of rainfall (not a warm front meeting a cold front when the sea and land air meet)
In winter, subtropical high reduces, making way for subpolar low
Subpolar low relates to cyclone weather and belts
Cyclone air circulation causes rainfall and damp conditions during winter
Heavy rainfall may result in landslides and slope instability
Annual Precipitation = 42cm (on average)
Usually found between 30 - 41 degrees latitude (North and South).

Western Side of Continents, but if not interrupted by mountain ranges or damp conditions, can go inland for several thousands of kilometers
Mediterranean Climate interrupted by mountain ranges in Chile and California.

Mediterranean Climate interrupted by monsoon troughs in South Africa and Australia. Both these areas also have random rainfall, which changes the type of plant that is able to grow in these two areas, as opposed to other Mediterranan Climate countries. Many plants become dormant during the hot, dry summers. In the following cold season, the soil grows moist, and the plants are able to begin germinating. Anemone Blanda
("What is Mediterranean Climate?") Africa ("Mediterranean Climate") ("Mediterranean Climate") ("Mediterranean Climate") Oceania Middle East ("Mediterranean Climate" Europe ("Mediterranean Climate" Santiago, Chile
South America California, U.S.A.
North America ("Plants for Mediterranean Climate") ("BBC - Weather Centre") ("BBC - Weather Centre") Summer weather is hot because:
The sun is at a high angle in the sky
Prevailing winds blow from the warm land
Winds blow over dry land surface and so doesn’t pick up moisture

Winters are warm because:
The sun is lower in the sky
Prevailing winds have reversed direction (come from sea)
Winds bring warm, moist air due to coastal mountains

Animals Many small animals, because larger animals find it difficult to burrow and survive in hot, dry conditions.
Fires Due to hot, dry weather, Mediterranean Climate areas have many fires. Some of the plants have adapted to require this heat in order to germinate. ("The Mediterranean Biome")
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