The Flood Frequency Analysis module offers an introduction to the use of flood frequency analysis for flood prediction and planning. Through use of rich illustrations, animations, and interactions, this module explains the basic concepts, underlying issues, and methods for analyzing flood data. Common concepts such as the 100-year flood and return periods as well as issues affecting the statistical representation of floods are discussed. Common flood data analysis methods as well as an overview of design events are also covered. As a foundation topic for the Basic Hydrologic Science course, this module may be taken on its own, but it will also be available as a supporting topic providing factual scientific information to support students in completion of the case-based forecasting modules.
Have an account?
Sign In to write a review.
- Explain key concepts in flood frequency analysis
- Define the meaning of return periods (i.e., the 100-year flood)
- Explain the exceedance probability and its relationship to return period
- Understand the two primary applications of flood frequency analyses
- Understand key issues impacting the statistical representation of floods
- Explain how the period of record impacts flood frequency guidance
- Calculate the probability of occurrence or non-occurrence for a given flood magnitude over a specified duration
- Understand how basin changes may impact the behavior and frequency of floods, thus reducing the length of the period of record
- Apply common methods for analyzing flood data
- Explain the basic concepts underlying both annual and partial duration time series
- Conduct a frequency analysis given peak flow data for a river
- Explain purpose and application of design events
- Identify the reason for using design events
- Understand the usefulness of design events and their limitations and constraints
- Explain the concept of probable maximum event
- Understand the concept of standard project floods
hydrology, flood prediction, flood frequency analysis, flood frequency , time distribution of floods, flood magnitude, return period, statistical representation of floods, period of record, Colorado river compact, exceedance probability, flood data, annual series, annual maximum daily flow, annual series rank, annual series probability, annual series display, partial duration series, partial duration display, design events, probable maximum event, standard project flood, , non-exceedance probability, recurrence interval, homogeneous record, independence, urbanization, design storm, design flood, probable maximum precipitation, PMP, probable maximum flood, PMF
July 2020 - The lesson was updated to current internet standards (mp4/html5), with no changes to content.
