DROUGHT

Topics: Drought, Hydrology, Precipitation Pages: 1 (300 words) Published: March 2, 2015
DROUGHT
Definition
How does it happens/causes
Types
Damage
Connection with other hazzards
Example
an extended period when a region receives a deficiency in its water supply, whether atmospheric, surface or ground water.

Drought can be caused by too little precipitation (rain and snow) over an extended period ---------------------------
It can also be caused by increased demand for the available supply of usable water -----------------------------
Human activity can directly trigger exacerbating factors such as over farming, excessive irrigation, deforestation, and erosion adversely impact the ability of the land to capture and hold water. Hydrological drought

(is A marked depletion of surface water causing very low stream flow and drying of lakes, rivers and reservoirs) Meteorological drought
(This type of drought is all about the weather and occurs when there is a prolonged period of below average precipitation, which creates a natural shortage of available water) Agricultural drought

(This type of drought occurs when there isn’t enough moisture to support average crop production on farms or average grass production on range land.

Famine and thirst
Diseases
Cholera
Malaria
Typhoid
Dysentery

Wildfires—(The low moisture and precipitation that often characterize droughts can quickly create dangerous conditions in forests and across range lands, setting the stage for wildfires ) Dust Storms (They occur when drought hits an area suffering from desertification and erosion)

1900 India killing between 250,000 to 3.25 million.
1921-22 Soviet Union in which over 5 million perished from starvation due to drought 1928-30 Northwest China resulting in over 3 million deaths by famine. In 2006, Sichuan Province China experienced its worst drought in modern times with nearly 8 million people and over 7 million cattle facing water shortages. 12-year drought that was devastating southwest Western Australia, southeast South Australia,...
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