The following are the projecting that Dr. Ahmed is contributing to.
Current Projects
Model Intercomparison and Analysis
Dr. Ahmed is managing and leading the modelling efforts of Nelson-MIP project, which is funded by the Integrated Modelling Program for Canada (IMPC - Theme A6). The project involves testing multiple hydrologic models over the international Nelson-Churchill River basin in North America. The work is being conducted in collaboration with researchers and practitioners across Canada under the umbrella of this project. This project includes two-way knowledge transfer between researchers and practitioners to build better hydrologic models of the area. The participating models are tested for their ability to simulate the streamflow and other hydrologic signatures of that complex basin.
This study (Phase 0 and 1 only) was accepted for publication in the Journal of Hydrology link. The dataset for this study is published on the Federated Research Data Repository and interactive maps showing the models’ results are available below.
Phase 0 streamflow results:
The following map displays the streamflow simulation results of the participating models using uncalibrated model setups.
Phase 1 streamflow results:
The following map displays the streamflow simulation results of the participating models using calibrated model setups.
Improving Current Hydrologic Models
Currently available hydrologic models cannot simulate the hydrology of the prairies quite well because they do not have a proper representation of prairie potholes and their dynamics. Therefore, this project focuses on enhancing current models by properly representing the prairie pothole in them. Two models are being modified: the Canadian MESH land surface model (used by ECCC) and the HYPE model (used in Canada and Europe). This project improves the estimation of the flow quantities in prairie rivers.
Flood Inundation Mapping
Dr. Ahmed is involved in multiple projects that investigate how the flooding extents will change under future climate for multiple cities/communities across Western Canada. The projects also look at trying to identify the change in the flooding extent when altering regulation scenarios of major lakes/reservoirs that are nearby the studied areas.
Completed Projects
FloodNet
Dr. Ahmed led the modeling efforts of this project (FloodNet - Theme 4-3), investigates and predicts the hydrologic connectivity in watersheds under flood conditions. As part of that project, multiple modelling approaches were built to simulate flood magnitude and its spatiotemporal inundation extents. The approaches can assess flood impacts on the varying watershed components (rural, agricultural, lakes, wetlands, etc.).