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What is flood ?
Floods
 A flood is an overflow of water that submerges land which is
normally dry. The European Union (EU) Floods
Directive defines a flood as a covering by water of land not
normally covered by water.
 Floods usually cause large-scale loss of human life and wide
spread damage to properties. This damage is known as flood
damage.
Why floods occur ?
Causes of floods
 Firstly, it occurs due to heavy rain and storms during the
monsoon season that leaves a lot of rainwater behind on land
 This may in turn cause flash floods, where floods move at
great speeds, causing destruction and casualties
 A flood occurs when water overflows or inundates land that's
normally dry. This can happen in a multitude of ways. Most
common is when rivers or streams overflow their banks.
Excessive rain, a ruptured dam or levee, rapid ice melting in
the mountains, or even an unfortunately placed beaver dam
can overwhelm a river and send it spreading over the
adjacent land, called a floodplain.
Floods in 2005
 The 2005 Maharashtra floods refers to the flooding of many parts
of the Indian state of Maharashtra including large areas of the
metropolis Mumbai,
 a city located on the coast of the Arabian Sea, on the western coast
of India,
 In that at least 5,000 people died.
 The term 26 July, now is, in context always used for the day when
the city of Mumbai came to a standstill.
Floods in 2006
 There are 457 villages in 13 districts of north Bihar are currently flood-affected area
in Bihar. The crop area of 75,000 hectares in these agricultural-based regions has
been completely damaged.
 Muzzafarpur, Supaul, Darbhanga, Madhubani,Sitamarhi, Kishanganj, East
Champaran, West Chamaparan, Katihar, Bhagalpur,Samastipur , Madheura and
Saharsa are the worst affected districts.
 Because of flood some 1129 houses got completely damaged more than 3500
houses are damaged to some extent. Six people died in Bhagalpur, seven died in
Muzzafarpur and one in Sitamarhi.
Floods in 2007
 In 2007 south Asian floods occurred between 3rd July to 15th august in 2007
 Arunachal Pradesh, Bihar, Haryana, Himachial Pradesh ,kerla
 Maharashtra ,Meghalaya ,Orissa ,pujab,west Bengal
these are effected areas in 2007 south asian floods
 By 7 August in India, an estimated 13.7 million people had fled their
homes. According to the Indian government, the total cost of
the monsoon this year, of which these floods are a part, is in excess
of 130 crore (US$22 million) since 1 June The full extent of the damage and
number of lives lost may never be known
Floods in 2008
 The 2008 Indian floods were a series of floods in various states
of India during the 2008 monsoon season. The floods mostly
affected the western regions of Maharashtra state and Andhra
Pradesh as well as northern Bihar In India, the monsoon season
generally lasts from June to September.
 According to Ministry of Home Affairs (India)'s disaster management
unit, the countrywide death toll from floods in various states was
2,404 between June to September.
Flood affected areas
Methods to control floods
Alter the river channel
Presented By
M.Ajay
Any quires

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Floods

  • 2. Floods  A flood is an overflow of water that submerges land which is normally dry. The European Union (EU) Floods Directive defines a flood as a covering by water of land not normally covered by water.  Floods usually cause large-scale loss of human life and wide spread damage to properties. This damage is known as flood damage.
  • 4. Causes of floods  Firstly, it occurs due to heavy rain and storms during the monsoon season that leaves a lot of rainwater behind on land  This may in turn cause flash floods, where floods move at great speeds, causing destruction and casualties  A flood occurs when water overflows or inundates land that's normally dry. This can happen in a multitude of ways. Most common is when rivers or streams overflow their banks. Excessive rain, a ruptured dam or levee, rapid ice melting in the mountains, or even an unfortunately placed beaver dam can overwhelm a river and send it spreading over the adjacent land, called a floodplain.
  • 5. Floods in 2005  The 2005 Maharashtra floods refers to the flooding of many parts of the Indian state of Maharashtra including large areas of the metropolis Mumbai,  a city located on the coast of the Arabian Sea, on the western coast of India,  In that at least 5,000 people died.  The term 26 July, now is, in context always used for the day when the city of Mumbai came to a standstill.
  • 6. Floods in 2006  There are 457 villages in 13 districts of north Bihar are currently flood-affected area in Bihar. The crop area of 75,000 hectares in these agricultural-based regions has been completely damaged.  Muzzafarpur, Supaul, Darbhanga, Madhubani,Sitamarhi, Kishanganj, East Champaran, West Chamaparan, Katihar, Bhagalpur,Samastipur , Madheura and Saharsa are the worst affected districts.  Because of flood some 1129 houses got completely damaged more than 3500 houses are damaged to some extent. Six people died in Bhagalpur, seven died in Muzzafarpur and one in Sitamarhi.
  • 7. Floods in 2007  In 2007 south Asian floods occurred between 3rd July to 15th august in 2007  Arunachal Pradesh, Bihar, Haryana, Himachial Pradesh ,kerla  Maharashtra ,Meghalaya ,Orissa ,pujab,west Bengal these are effected areas in 2007 south asian floods  By 7 August in India, an estimated 13.7 million people had fled their homes. According to the Indian government, the total cost of the monsoon this year, of which these floods are a part, is in excess of 130 crore (US$22 million) since 1 June The full extent of the damage and number of lives lost may never be known
  • 8. Floods in 2008  The 2008 Indian floods were a series of floods in various states of India during the 2008 monsoon season. The floods mostly affected the western regions of Maharashtra state and Andhra Pradesh as well as northern Bihar In India, the monsoon season generally lasts from June to September.  According to Ministry of Home Affairs (India)'s disaster management unit, the countrywide death toll from floods in various states was 2,404 between June to September.
  • 11. Alter the river channel