Question

Why is drought a slow onset disaster? Identify five factors that cause drought

Answer 1

sorry i don't know the answer to the first question but the answer to the second question is given below

Land and water temperatures cause drought. As overall temperatures increase more water evaporates and severe weather conditions increase. Landscapes and crops need more water to survive and overall the demand for water increases. This is why it is so important to consider changes in ET when discussing water savings. You might be using more water or less water depending on weather conditions.

• Air circulation and weather patterns also cause drought. Key events like El Nino or La Nina help contribute to drought in areas. All the water we ever had we have today and it is stored in the air or on land. Weather patterns move the water in the air around. This is constantly changing.
• Soil moisture levels also contribute to drought. When soil moisture is depleted there is less evaporation of water to create clouds. Surface temperatures rise, more water is needed and less is available which contributes to a more severe drought.
• Drought can also be a supply and demand of water issue. When a region is growing rapidly the demand for water can exceed the supply. When weather conditions, temperatures or air patterns push a region toward a drought the demand for water by people can offset or worsen the situation depending on how the region reacts. Excessive irrigation is an excellent of people contributing to a drought.
• If the timing of water doesn’t match the agricultural season you may have too much water when you don’t need it and too little when you do need it. Proper storage and collection of water is key to counter balancing this cycle and clearly in the scope of human management.

Answer 2

Why is drought a slow onset disaster? Identify five factors that cause drought.

• Streamflows decrease, lake and reservoir levels drop, and the depth of water in wells rises when rainfall is below average for a period of weeks to years. The dry spell could turn into a drought if the dry weather continues and problems with the water supply arise.
• In the natural climate cycle, a drought is a protracted dry spell that can happen anywhere in the world. It is a calamity that develops slowly and is defined by a lack of precipitation that causes a water scarcity. On health, agriculture, economy, energy, and the environment, drought can have a devastating impact.

The 5 main causes of drought, both natural and man-made:

1) Drought is a result of water and land temperatures.

2) Drought is also a result of air circulation and weather patterns.

3) The amount of soil moisture also has a role in drought.

4) Water availability and demand can also be a factor in drought.

5) If the watering schedule doesn't coincide with the growing season, you can have too much water when you don't need it and not enough when you need.

• Climate change-related increases in temperature are making already dry regions drier and previously rainy parts wetter. This means that in dry areas, increasing temperatures cause water to evaporate more quickly, which either increases the likelihood of drought or lengthens existing droughts.

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