Flood – Types and Causes
Flood – Types and Causes
FLOOD:
- “Whenever the amount or quantity of water is exceeded in a reservoir and exceeds banks of the river when it comes out and damages human property, then is the flood.”
TYPES OF FLOOD:
Long Rain floods:
- Low-Intensity rainfall
- Continue for several days
- The storage capacity of the drainage basin is exceeded
- Additional rainfall moves to streams and causes the flood.
- More common cause of the world
Snowmelt floods:
- Melting of excessive snow packs or rapid increase of temperature
- At times accompanies with rainfall
Flash floods:
- High-intensity rainfall
- Local, for a short period
- Most in summer but can occur any time
Frozen soil flood:
- Ice on soil (freezes)
- Snowfall but infiltration is not possible
- When rain falls, causes the flood
- Known as frozen soil flood
Tidal Floods:
- In coastal areas due to tides of seas
- May overflow in the nearby areas
- These may be due to:
- Attraction of moon
- Rise and fall of tides during day and night
CAUSES OF FLOODS:
- Construction and roads and buildings
- Deforestation
- Fire
- Clear felling
- Grazing
- Construction
- Type of rainfall
- Characteristics of w-shed
- Sedimentation
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Naeem Javid Muhammad Hassani is working as Conservator of Forests in Balochistan Forest & Wildlife Department (BFWD). He is the CEO of Tech Urdu (techurdu.net) Forestrypedia (forestrypedia.com), All Pak Notifications (allpaknotifications.com), Essayspedia, etc & their YouTube Channels). He is an Environmentalist, Blogger, YouTuber, Developer & Vlogger.