Storm Properties™ Analysis
OneRain's StormProperties approach powers projects that...
- Incorporate radar and rain gauge data processing using a national radar rainfall database and local rain gauge observations,
- Use TITAN® (UCAR) specialized software to identify the geometric properties of storms,
- Create gauge-adjusted radar rainfall estimates for selected storms over drainage areas of interest,
- Identify typical storm patterns,
- Assess the applicability of uniformity assumptions related to design rain,
- Assess Depth Area Reduction Factors,
- Relate local rainfall characteristics to published data,
- Assess the suitability of design storm characteristics that may vary with return period,
- Compare identified storm patterns with other design storms currently used in the region,
- Assess the spatial distribution of storm characteristics within the watershed and surrounding areas,
- Evaluate intensity-frequency relationships for short duration events
- Quantify the distribution of rainfall amounts as a percentage of rainfall events over time, and
- Identify antecedent runoff conditions for various design storms.
In addition, a Design Storm Processor can be developed to produce realistic static and/or dynamic design storms that represent conditions local to the watershed of interest.
Outcomes from storm properties analysis offers a defensible design storm that represents the behavior of rainfall specific to the study area. Climate change has impacted the behavior of rainfall, with many places seeing higher intensity shorter duration rainfall events. Storm properties analysis uses hundreds of thousand storm cells in a specific area to characterize rainfall. Tools are left behind for creating 2D+ (two dimensional, with movement) for modeling these design storms.
In cases where traditional design storms over represent rainfall, money is wasted, overbuilding to these unrealistic events. Building to the right size can save dollars. In cases where traditional design storms under represent rainfall, infrastructure is under built, causing problems that impact operations and damage property.
Experts Measuring Rainfall and its Consequences
