north africa, southwest asia, and central asia
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North Africa, Southwest Asia, and Central Asia. Physical Geography Mr. Marston Dominion Christian High School Fall 2009. Chapter Objectives. 1. Major landforms and natural resources 2. Climate and Vegetation. Maghreb and the Middle East. PersiaGulf. Red Sea. Arabian Sea. Gulf of Aden. - PowerPoint PPT PresentationTRANSCRIPT
North Africa, Southwest Asia, and Central Asia
Physical GeographyMr. Marston
Dominion Christian High SchoolFall 2009
Chapter Objectives
• 1. Major landforms and natural resources• 2. Climate and Vegetation
Maghreb and the Middle East
PersiaGulf
Gulf of Aden
Arabian Sea
Red Sea
Divisions
• 1. Maghreb: area of North Africa between the Atlas Mountains and the Mediterranean Sea.
• Maghreb means “western” in Arabic.• The Countries have similara. Climatesb. Landformsc. Populationsd. Economiese. history
Maghreb Union• The joining together of the North African
countries in 1989.To:Promote economic cooperationEconomic integrationMoroccoAlgeriaTunisiaLibyaMauritania
Central Asia
Divisions II
• 2. Middle Easta. Arabian Peninsulab.Iran and Turkey3. Central Asia
Key Geographic Points
• Bosporus Strait: separates Asia and Europe• Dead Sea: forms Israeli-Jordanian border• Caspian Sea: largest inland body of water on
earth• Aral Sea: once the 4th largest inland sea, it is
now drying up.
Bosporus Strait: separates Europe from Asia
Dead Sea: 1400 feet below sea level
Location of Dead Sea
Floating in the Dead Sea: Aaaaahhh. High Salt content contributes to
buoyancy.
Caspian Sea: largest lake on earth. Oil and gas and sturgeon.
The shrinking Aral Sea
Aral Sea Shrinkage
• Shrinkage
Rivers
Nile River: Egypt. World’s longest river.
Nile River Delta
Nile River Delta
• 90% of Egypt’s people live in Nile River Delta• They live on 3% of Egypt’s land• Aswan High Dama. Controls river flowb.Reduces floodingc. Alluvial soil: rich soilmade up of sand and mud deposited by moving
water.
Aswan High Dam
Aswan High Dam
Mesopotamia: “The land between two rivers”
• Tigris and Euphrates Rivers in Iraq• The two rivers join to form the Shatt al Arab,
which empties into the Persian Gulf
Shatt al Arab
Wadis
• Wadis: streambeds that remain dry until a heavy rain and often become dangerous after a heavy rain.
Plains, Plateaus, and Mountains
• Coastal plains: fertile plains along the Mediterranean Sea (Moroccan and Algerian coasts and along the Caspian Sea and Persian Gulf)
• Highlands:Atlas Mountains:50% of Moroccan people engage in agriculture and produce,
barley, oats, and wheat)Hejaz: mountain range on western coast of Arabian PeninsulaAsir: area more agriculturally productive on Arabian peninsula
because it gets more rainfall than the Hejaz
Other mountain ranges
• Pontic (Turkey• Taurus (Turkey)• Caucasus• Zagros: southern Iran
Caucasus Mountains
Russian Caucasus
Lowlands
• Kums: dune covered deserts of Turkmenistan and Uzbekistan.
• Garagum (black sand)• Qizilqum (red sand)
Earthquakes
• African, Arabian, and Eurasian plates come together in the region.
• As they clash:a. Build mountainsb.Shift landmassesc. Cause earthquakesTurkey: experiences regular earthquakes
Natural Resources
• Petroleum: 70% of world’s oil reserves• Natural Gas: 33% of natural gas
• Other:• Sulfate: (Paperboard, glass, detergents)• Phosphates: used in fertilizers• Chromium, gold, lead, manganese, and zinc• Iron ore
Potential for diversification
• UAE: banking, information technology, and tourism.
• Libya: invested in infrastructure, agriculture, and fisheries.
Climate and Vegetation
Water scarcity defines the region’s climates
Climates:Desert: predominatesSteppeMediterraneanHighland
Sahara
• Largest desert in the world• 3.5 million square miles• Desert: average less than 10 inches of rain per
year• Sand covers less than 10% of the Sahara (barren
rock, mountains, and desert pavement cover the most)
• Desert encompasses about 50% of the lands in North Africa, Southwest Asia, an Central Asia.
• Sahara
Sahara Desert
Weather Patterns in the Desert
• Central Asia/northern Sahara: cold winters with freezing temperatures
• Southern Sahara/Arabia: winters are milder• Summers are long and hot.
• Ergs: Sand dune covered areas• Regs: stony plains covered with rocky gravel called
“desert pavement”• Hamada: flat, sandstone plateau
Rub al Khali
• “Empty Quarter”• Located on the Arabian Peninsula
• Some vegetation grows: cacti and drought resistant shrubs.
“Empty Quarter”
Oasis: a place where water can be found in a desert
Steppe Climate
• Second largest climate in the region of North Africa, Central Asia, and Southwest Asia
• Steppe borders the Sahara to the north and runs from Turkey to eastern Kazakhstan
• Precipitation averages less than 14 inches per year.
Steppes
Steppes in Kazakhstan
Pastoralism: the raising and grazing of livestock is a way of life
for people in the steppes.• Bedouin Pastoralists
Climatic Variations
• Mediterranean Climate zones:• Cool, rainy winters alternate with hot, dry
summers.• Ideal for tourism• Export citrus fruits, olives and grapes to
Europe and North America
Rainfall
• Coastal and highland areas near mountain ranges receive the most rainfall as moist, warm air is driven off the sea by prevailing westerly winds
• Ex: North African coast• Elburz Mountains in Georgia
• Cereals (food grains such as barley, oats and wheat) can be grown without irrigation if area gets more than 14 inches of rain per year.
Desertification
• Grassy plains turn into desert, especially where small shrubs and trees are used for firewood.
• desertification over time in Libya
Highland Climate
• Caucasus MountainsWetter and colder than other climates in the
region