Drought is defined as a continuous period of dry weather that can vary in length between countries. It can be caused by seasonal changes in weather patterns like the Hadley cell and Inter-Tropical Convergence Zone, leading to wet and dry seasons in some regions. Long term droughts over multiple years can have disastrous consequences, affecting both human and natural systems. The consequences of drought include food shortages and the need for food aid when rains fail. Various groups like nomadic pastoralists have adapted to seasonal droughts, while long term management strategies are needed to address extended drought crises.
This PowerPoint helps students to consider the concept of infinity.
6 Introduction To Drought
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2. Drought What is drought? What are the causes and consequences of drought? How do humans respond to the drought crises?
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4. Seasonal Drought The Hadley cell dominates precipitation patterns within the tropics leading to seasonal drought (wet and dry seasons) in the savannah regions as the Inter-Tropical Convergence Zone (ITCZ) migrates north and south.
5. Nomads of the Savanna Turkana, an indigenous people who migrate with the seasonal rains. They are nomadic pastoralists.
6. Vegetation of the Savanna Boabab tree. Thick truck store water for use during the long dry season. The fire proof bark also provides protection during this time.
