Portofolio

Urban Surface Water | Ongoing

In this project, I create graphical models to automate urban surface water. I use the QGIS graphical model builder to automate urban surface water drainage workflows in 1D and 2D. These models save significant time allowing you to do other tasks while the models run. These outputs are used as inputs in InfoWorks ICM to prepare surface water models for municipalities in the Netherlands.    

I also generate catchment areas in Urban spaces to understand the drainage systems and water accumulation.  

PCRaster Processing tool (January 2024)

Stream power is a measure used to capture the force of surface flows, which is commonly applied to assess susceptibility to land erosion. The original Stream Power Index (SPI) tool, developed by Hans van der Kwast, operates within the PCRaster framework—a powerful platform for dynamic spatial modeling and geospatial analysis.
I expanded upon Hans van der Kwast's PCRaster processing tool to create the Corrected Stream Power Index. This enhancement integrates the effects of urbanization into the analysis, allowing for a more accurate assessment of erosion risks. By accounting for how buildings and other urban features influence water flow, this improved tool provides deeper insights into the interaction between urban development and surface water dynamics.  

Sustainable Water Pans (April 2024)

I delineated 21 water pan catchment areas, their potential surface areas, and stage volume curves in Kenya. I used drone images and processed them to calculate the stage volume of water pans and estimate their potential surface area. Additionally, I delineated the catchment areas to define the watershed boundaries. These catchment delineations allow researchers to estimate water yield for each water pan and also to know the surface area of the water and the exact capacity of water pans at each level of elevation. This is critical for water planning.

Nacala erosion susceptibility assessment | November 2023

The city is built on steep, sandy soils prone to erosion. Due to inadequate sewer connections and the absence of stormwater collection systems, rainfall events lead to water runoff that forms deep gullies, endangering the residents. I have assessed the area, identified hot spot areas, and calculated the Stream Power Index (SPI) among other things. For this analysis, I integrated building footprints into the Digital Elevation Model (DEM) to accurately determine the influence of buildings on the surface flow of water.