This document discusses drought, including its types, causes, history, and effects. It defines drought as a prolonged period of abnormally low rainfall that results in water shortage. There are three main types of drought: meteorological, relating to low rainfall; hydrological, regarding low water levels in supplies; and agricultural, when not enough water is available for crops. Common causes include deficiencies in rain, soil erosion, global warming, deforestation. India experiences frequent droughts affecting over 70% of its cultivated land. Specific regions that are prone to drought are identified.

1. By: Group 5
Subject: Disaster Management
Roll no: 84, 86,11, 18, 74, 07, 75,
64, 66

2. ThroughouT This
presenTaTion you will
learn

3. INTRODUCTI
ON TO
DROUGHT
TYPES OFTYPES OF
DROUGHTDROUGHT
CAUSES OF
DROUGHT
HISTORY OF
DROUGHT
EFFECTS OFEFFECTS OF
DROUGHTDROUGHT
MITIGATIONMITIGATION
OF DROUGHTOF DROUGHT

4.  Look at the pictures and tell what you observe?

6. A lack or of for an unusually
period of , involving less than the usual
over 3 months
A lack or shortage of water for an unusually long period of time,
involving 50% less than the usual rainfall over 3 months
DroughT is

7. The land is barren and
covered in thin dust. Cracks
appears in the earth’s.
This is drought

8. DROUGHT
 What do you mean by drought?
 The word drought instantly brings image of dry, parched land, no
rainfall, crop failures, starvation and bad living conditions to our mind.
 In simple terms, drought is a condition of acute scarcity of water, food,
fodder, and employment due to scanty rainfall in an area.

9. ARe we All vUlneRAble TO DROUGHT?
 It is one of the most widespread disaster that India faces, affecting more than
70% of cultivable land.
 Often, people do not react to drought like they do to other sudden disasters
such as earthquakes, cyclones, and floods.
 Since drought conditions develop over period of time, and without immediately
perceptible changes to environment.
 Hence drought is called a ‘ slow on set’ disaster.

11. HOw A DROUGHT sTARTs
 A drought starts when total rainfall is well below average for several
months
 Other signs of drought include:
 Very dry soil
 Trees have a sign of dying
 Weather getting hotter and hotter
Very dry soil

12. CAUsesOFDROUGHT
Deficiency Of Rain WaterDeficiency Of Rain Water
Soil ErosionSoil Erosion
Global WarmingGlobal Warming
DeforestationDeforestation

13. HeRe’s THe eARTH

14. Ozone Layer

15. Hole

16.  This has increased the average
temperature and caused climate changes
to the earths atmosphere and also causes
drought.

17. Types of droughT
 There are 3 types of drought. They are as follows:

18. MeTeorological droughT
 Meteorological drought is generally defined by comparing the
rainfall in a particular place and at a particular time.
 This happens when the actual rainfall in an area is significantly
less than the climatological mean of that area.
 Meteorological drought leads to soil moisture and this always has
an effect on crops production.

19. hydrological droughT
 Hydrological Drought is associated with the affect of low rainfalls on
water level in reservoirs, rivers & lakes .
 This type of drought are noticed sometimes after a meteorology
drought.
 A hydrological drought change in water level affects eco-system.

20. agriculTural droughT
 Agricultural drought occurs when there isn’t enough water for a crop
to grow at the particular time.
 This type of drought doesn’t depend only in the amount of rainfalls
where water is used carelessly for irrigation and other purpose.

21. hisTory of droughT
PERIOD DROUGHT YEARS NUMBER
OF DROUGHT
1801-1830 1801, 1804, 1806, 1812, 1819,
1825
6
1831-1860 1832, 1833, 1837, 1853, 1860 5
1861-1890 1862, 1866, 1868, 1873, 1877,
1883
6
1891-1920 1891, 1897, 1899, 1901, 1904,
1905, 1907, 1911, 1918, 1920
10
1921-1950 1939, 1941 2
1951-1980 1951, 1965, 1966, 1971, 1972,
1974, 1979
7
1981-2010 1982, 1987, 2002, 2009 4

22. Some of the areaS prone to drought
Drought-in-Maharashtra: Marathwada region
Aurangabad
Nanded
Latur
Jalna
Beed
Parbhani
Osmanabad
Hingoli

23. Drought-in-Karnataka: Chitradurga-Bijapur

24. Bikaner-Jaisalmer

25. Gujarat- Saurashtra
Dead-Land-of-Rann of Kutch

26. Drought-in-Andhra-Pradesh: Mahbubnagar-
Khammam District

27. Drought-in-Odissa: Mayurbhanj-Balasore