RIVERS OF PAKISTAN

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RIVERS OF PAKISTAN
INDUS
JHELUM
CHENAB
WESTERN RIVERS
AFGHANISTAN
RAVI
SUTLEJ
BEAS
INDIA
EASTERN RIVERS
IRAN
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Gudu
Sukkur
Kotri
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Meteoroburst Telecommunication System
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Computer Based Flood Forecasting System
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HAZARD CONTEXT

• Glacial Lake Outburst Flood (GLOF)
• There are 5218 glaciers in Pakistan with a total
  of 2420 lakes
• Out of which 52 lakes are considered dangerous
• An agreement for GLOF monitoring was arrived at
  with ICIMOD in 2003
• Since 2003, starting from the Astor Basin, all
  glacial basins have been inventoried for geo
  coordinates, numbered, named and their physical
  configuration have been recorded

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SCENARIO B (MOST DANGEROUS)
Heavy to super heavy riverine flooding,
significant flash flooding and cloud burst
activity owing to heavy precipitation in
mountainous and semi-mountainous regions causing
sliding activity and severing population
segments. Cyclone activity experienced affecting
upto eight to ten districts in Sindh and/ or
Balochistan causing widespread destruction along
coastal region and massive inland flash flooding
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HAZARD CONTEXT

• Tropical Cyclone
• Cyclone of 1999 seriously impacted Thatta and
  Badin Districts (affected 0.6 million people and
  caused loss of 202 lives)
• Cyclone Yemyn in 2007 affected 26 districts of
  Balochistan and Sindh (affected 2.5 million
  people and caused loss of 400 lives)

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HAZARD CONTEXT

• Summer Monsoons
• Summer monsoons result in heavy cyclones and
  weather systems based precipitation originating
  from Bay of Bengal and Arabian Sea
• Water release from Tarbela and Mangla Dams
  augments above
• Weather systems originating from Bay of Bengal
  and to a lesser extent Arabian Sea result in
  occurrence of tropical cyclones in the North
  Arabian Sea which impact coast of Sindh and
  Balochistan

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HAZARD CONTEXT

• Flash Floods
• NAs. Hunza, Ghizar, Astore, Gilgit Skardu
• NWFP. Charsadda, Peshawar, Mardan, DI Khan, Swat,
  Mansehra, Upper /Lower Dir Chitral
• AJK. Muzzafarabad, Neelum, Bagh, Kotli Bhimber
• Punjab. Sialkot, Wazirabad, Gujranwala, Gujrat,
  Bhakkar, Mianwali DG Khan
• Balochistan. Sibi, Jhal Magsi, Bolan, Kech,
  Gwador, Kharan, Kalat, Khuzdar Lasbela
• Sindh. Dadu, Qambar- Shahdadkot, Larkana,
  Karachi, Hyderabad, Sanghar Badin
• Urban Floods. Karachi, Hyderabad, Rawalpindi
  Lahore

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CYCLONE SCENARIO (Karachi Specific)

• Storm Wind
• Wind speed up to 64 120 knots (118-222 km/h)
• Wind impact commences when cyclone is 25-30 kms
  from the coast

33 Knots
34-47 Knots
48-64 Knots
65-120 Knots
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CYCLONE SCENARIO (Karachi Specific)

• Rainfall. 200 - 225 mm rainfall (9 - 10 inches)
  over a period of 36 hours

15 mm/hr
33 Knots
15-25 mm/hr
25 mm/hr
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CYCLONE SCENARIO (Karachi Specific)

• A cyclone storm making landfall in Karachi City
• Storm Surge Wave
• Height of the surge wave between 12-15 feet or
  above
• Wave is likely to travel up to 5 kilometres
  inland
• Water inflows would be regulated along the road
  network and along Malir and Lyari rivers
• Paralysis within 3-5 kilometres of the coastal
  region
• Population evacuation within 2 kilometres along
  the coast

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TSUNAMI
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National Disaster Management Authority
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December 31, 2009
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