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  2. Flood stage - Wikipedia

    en.wikipedia.org/wiki/Flood_stage

    Flood stage is the water level, as read by a stream gauge or tide gauge, for a body of water at a particular location, measured from the level at which a body of water threatens lives, property, commerce, or travel. [1] The term "at flood stage" is commonly used to describe the point at which this occurs.

  3. Return period - Wikipedia

    en.wikipedia.org/wiki/Return_period

    For example, a 10-year flood has a 1/10 = 0.1 or 10% chance of being exceeded in any one year and a 50-year flood has a 0.02 or 2% chance of being exceeded in any one year. This does not mean that a 100-year flood will happen regularly every 100 years, or only once in 100 years. Despite the connotations of the name "return period".

  4. 100-year flood - Wikipedia

    en.wikipedia.org/wiki/100-year_flood

    A 100-year flood is a flood event that has on average a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. [1] A 100-year flood is also referred to as a 1% flood. [2] For coastal or lake flooding, a 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems ...

  5. 25 years later: The Great Flood of 1993 remains worst river ...

    www.aol.com/weather/25-years-later-great-flood...

    While the worst of the flooding occurred in the summer of 1993, impacts across the region lasted for years. Of the 17 million acres that were flooded, a majority was being used as farmland.

  6. Flood - Wikipedia

    en.wikipedia.org/wiki/Flood

    Applied to various potential channel configurations and flow rates, a reach model can contribute to selecting an optimum design for a modified channel. Various reach models are available as of 2015, either 1D models (flood levels measured in the channel) or 2D models (variable flood depths measured across the extent of a floodplain).

  7. What everyone should know about these 3 most common types of ...

    www.aol.com/weather/everyone-know-3-most-common...

    Flooding can strike in seconds or days in various forms, each with its own life-threatening potential. However, all types of flooding should be taken seriously. "Sometimes people are not taking ...

  8. Intensity-duration-frequency curve - Wikipedia

    en.wikipedia.org/wiki/Intensity-duration...

    These curves are commonly used in hydrology for flood forecasting and civil engineering for urban drainage design. However, the IDF curves are also analysed in hydrometeorology because of the interest in the time concentration or time-structure of the rainfall , [ 2 ] [ 3 ] but it is also possible to define IDF curves for drought events.

  9. Opinion: Why we’re seeing so many deadly floods - AOL

    www.aol.com/opinion-why-seeing-many-deadly...

    There have been so many floods, in so many parts of the world, in such a short period of time, writes Adam H. Sobel. Is this climate change, or just a particularly severe bunch of weather flukes ...

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