The key controls in a db system & hydrographs
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The document discusses the key features of a storm hydrograph including lag time, peak flow, and recession/falling limb. It then discusses the 2010 Pakistan floods by showing a video of the floods and comparing rainfall data from 2009 and 2010. Finally, it discusses the eight key controls on drainage basin systems: basin size/shape/relief, precipitation type/temperature, land use, geology, soil type, drainage density, and tides/storm surges. It emphasizes that the controls should not be viewed in isolation and usually multiple factors interact to influence drainage basin behavior.
![Storm Hydrographs ,[object Object],[object Object]](https://image.slidesharecdn.com/thekeycontrolsinadbsystemhydrographs-101005111039-phpapp02/85/the-key-controls-in-a-db-system-hydrographs-1-320.jpg)
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The key controls in a db system & hydrographs
- 3. What do we mean by lag time, peak flow and recession/falling limb.
- 4. Pakistan Floods 2010 Watch first 3 mins