Hydrosoft Gridded WSI

Integrated Geospatial Multi-Criteria Decision Framework for assessing water security across South Africa at 5km × 5km resolution. Commissioned by the Water Research Commission, contracted to Hydrosoft Institute.

Dimensions

Indicators

Parameters

50,400

Grid Cells

Data Ready

System Architecture (Pietersen Framework)

📁 Data Layer
8 dimension folders

→

⚙️ Normalization
min-max / z-score

→

📊 Aggregation
weighted sum / MCDA

→

🧮 WSI Engine
score 0–100

→

🗺 Visualization
3D terrain viewer

Dimensions (8)

Tools & Workflows

🗺

3D Terrain Viewer

Interactive 3D map with 9 overlay layers, rainfall DTM, and pan/zoom

🔍

Point Inspector

Click any grid cell to see all dimension scores, WSI, and data completeness

📊

Settlement Comparison

Rank settlements, compare radar charts, export CSV rankings

⚡

Batch Runner

Compute WSI for all 16,630 SA grid cells with export packs

📐

Computation Spec

Documented equations, rules, manifest schema, classification

📦

Export WSI Results

Download computed WSI scores as CSV for all cells with data

📋

View Catalog

Master registry of all dimensions, indicators, and parameters

Project Information

Project: Water Security Index for South African Settlements
Code: WSI26
Commission: Water Research Commission (WRC)
Contractor: Hydrosoft Institute
Grid: 5 km × 5 km · 350 × 144 cells · EPSG:4326 (WGS84)
File Naming: WSI26-D{n}-{CODE}-{YYYYMMDD}.csv
Architecture: Data → Normalize → Aggregate → WSI Engine → Visualization (Pietersen Framework)