14. Probable Maximum Precipitation (PMP)
Probable Maximum Precipitation (PMP) is a crucial concept in hydrological design, indicating the maximum possible precipitation for a given location at a certain time. Various meteorological and geographic factors influence PMP, and estimation methods include statistical, hydrometeorological, and numerical weather modeling approaches. Understanding and accurately estimating PMP is vital for designing critical structures, assessing flood hazards, and addressing challenges posed by climate change.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- PMP is defined as the greatest depth of precipitation that is physically possible over a specific area.
- Estimating PMP involves several methods impacted by meteorological conditions, including statistical analysis and numerical modeling.
- Climate change can affect PMP values, necessitating updated estimation protocols and guidelines.
Key Concepts
- -- Probable Maximum Precipitation (PMP)
- The greatest depth of precipitation that can occur over a certain area and time, based on maximum meteorological conditions.
- -- PMP Estimation Methods
- Includes statistical methods, hydrometeorological methods, and numerical weather modeling to estimate probable maximum precipitation.
- -- Atmospheric Moisture Content
- The amount of moisture the atmosphere can hold, significantly influencing precipitation amounts.
- -- Climate Change
- Changes in climate that can alter atmospheric moisture capacity, potentially increasing extreme precipitation events.
- -- DepthAreaDuration Relationships
- Relationships used to express how storm depth decreases with increasing area and time.
Additional Learning Materials
Supplementary resources to enhance your learning experience.