Hydrologic modeling uses mathematical models to replicate the hydrologic processes. Together with hydraulic models, these hydrologic models are typically used to assess stormwater system performance under various storm events.
GeoAdvice has extensive experience with the following hydrologic modeling related services:
- Model building and calibration/validation
- Stormwater low impact development (LID) / best management practice (BMP) control
- Climate change impact analysis
- Continuous simulation
- System performance assessment
- Sizing drainage system components
- Floodplain modeling
- Integrated 1D-2D modeling
- Flow monitoring data review
- Integrated stormwater management plan (ISMP)
- Drainage management plan (DMP)
- Watershed management plan (WMP)
Building and Analyzing Hydrologic Models
GeoAdvice has extensive experience building and analyzing hydrologic models for various stormwater/drainage studies. We encourage you to contact us to learn more about our services.
Overview of hydrologic modeling projects
Project Name: Stormwater Modeling and Master Plan
Client Name: Village of Anmore, BC
Project Objectives:
- Build a hydrologic and hydraulic model of the Village’s stormwater system
- Calibrate the model to flow monitoring data recorded during the wet weather season
- Develop a future scenario model based on the land use information from the Village Official Community plan
- Write a Stormwater Master Plan report that:
- Describes the hydraulic condition of the existing stormwater system
- Describes the physical condition of the existing culverts
- Provides improvement recommendations to accommodate existing and future development
- Provides an integrated plan for future development servicing
Project Results:
- The model showed an acceptable agreement with the measured flows at the four flow monitoring stations
- The future OCP land use information and the estimated hydrology parameters were used to create a future conditions modeling scenario.
- Recommended improvements were sized to convey the flows simulated under the future land use scenario with consideration of impacts from climate change.
Project Name: Swan Creek Drainage Basin Stormwater Modeling and Capacity Analyses
Client Name: District of Saanich, BC
Project Objectives:
- Collect and compile background and field data needed for the preparation of the stormwater model
- Develop a hydrologic and hydraulic model of the Swan Creek Watershed
- Set-up, run, analyze and provide results from the model in accordance with the District’s Stormwater Modeling Standards for existing land-uses and existing infrastructure.
Project Results:
- The model was validated using flood levels measured in the field during heavy rain events. Validation results show that the modeled water levels at the measurement locations are within ±1 m.
- Design storms were simulated to assess the hydraulic capacity of the existing system of piped gravity mains, culverts and watercourses.
- As expected, climate change has a negative impact on the infrastructure hydraulic capacity. The model predicts that under climate change conditions, the number of deficient gravity mains would increase substantially and a marginal increase was demonstrated in watercourses.
Project Name: Stormwater Model Development and Capacity Analysis
Client Name: District of Oak Bay, BC
Project Objectives:
- Develop a reliable, accurate, and user-friendly model of the District’s Orchard/Newport stormwater catchment system;
- Analyze the District’s stormwater network to identify existing and future deficiencies; and
- Identify upgrade recommendations based on existing infrastructure, growth, and development at the OCP planning horizon and the effects of climate change.
Project Results:
- Through comprehensive modeling and analysis of the District’s Orchard/Newport stormwater catchment, GeoAdvice provided an understanding of the existing and future system performance as well as system improvements required to support development.
MUNICIPALITIES WE WORKED WITH
