What are the discharges expected in a 30 – year flood? 40 – year flood? 100 – year flood?2. After a 40 – year flood happens, can this happen again after a year?Conclusion:
Question
What are the discharges expected in a 30 – year flood? 40 – year flood? 100 – year flood?2. After a 40 – year flood happens, can this happen again after a year?Conclusion:
Solution
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The discharges expected in a 30-year, 40-year, or 100-year flood refer to the maximum amount of water expected to flow at a particular location during a flood of that magnitude. These are statistical estimates, based on historical data, and do not predict exact amounts. The 30-year flood would have a lower discharge than the 40-year flood, which in turn would have a lower discharge than the 100-year flood. The exact amounts would depend on the specific location and the historical data available.
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Yes, a 40-year flood can happen again after a year. The term "40-year flood" is a statistical estimate. It means that on average, a flood of that magnitude is expected to occur once every 40 years. However, it does not mean that once a 40-year flood occurs, there will be no such flood for the next 40 years. It is entirely possible for a 40-year flood to occur in consecutive years, or even multiple times in a single year.
Conclusion: The terms "30-year flood", "40-year flood", and "100-year flood" are statistical estimates that describe the frequency and magnitude of flood events. They do not predict exact amounts of discharge or the exact timing of floods. It is possible for a flood of a given magnitude to occur more frequently than the statistical estimate suggests.
Similar Questions
A house you’re interested in buying would be affected by 20-year floods. What is the probability of that happening in any given year?
Name: Date:Grade and Section:Flood Recurrence IntervalObjective: Forecast floods from estimates f recurrence interval and probability of exceedance of riverdischarge.Date Discharge, m3/sec Rank, m Recurrence Interval, R28 March 2005 159.684 February 2006 327.3622 February 2007 209.523 February 2008 90.612 February 2009 113.281 March 2010 78.44 May 2011 152.922 April 2012 135.9216 April 2013 96.286 August 2014 271.8424 February 2015 100.81 February 2016 167.6419 March 2017 169.929 February 2018 147.2411 June 2019 192.5618 April 2020 249.221 Mar 2021 207.289 February 2022 126.8427 March 2023 84.965 March 2024 141.61. Rank the discharges from 1 – 20. Rank 1 shall be assigned to the maximum discharge in 20-years.2. Compute for the recurrence interval for each peak discharge by plugging in the values n andm. Use the Weibull Equation.3. Plot the recurrence interval (x-axis) versus the discharge (y-axis) using the graph.4. Draw a best – fit line through the data points (the line does not necessarily have to pass throughall the points).5. Do linear extrapolation by extending the trend line beyond the actual data plotted.Analysis:1. What are the discharges expected in a 30 – year flood? 40 – year flood? 100 – year flood?2. After a 40 – year flood happens, can this happen again after a year?Conclusion:
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(Q010) The discharge of a stream isGroup of answer choicescalculated by dividing its cross-sectional area by its velocity.constant for the length of the stream.likely to decrease downstream in arid regions and increase downstream in temperate regions.typically lower in spring than during the summer.
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