Interactive visualization of wind flow patterns over the Urban Climate Map of Phnom Penh (2022), based on data from the Build4People Project (WP5 Urban Climate).
Open wind_animation_v4.html in any modern browser — no server or dependencies required.
Animated wind particles flow across the urban climate map, following the wind directions measured by Automatic Weather Stations (AWS). The visualization combines two data sources:
- Base map: Urban Climate Map Phnom Penh 2022 (INKEK/FONA), showing climatopes from strong cooling potential (light blue) to strong heat load (pink/red)
- Wind field: Interpolated from ~90 directional samples taken from AWS wind measurements, using Inverse Distance Weighting (IDW)
The dominant pattern is a SW monsoon flow with regional variations:
- NW sector: E to ENE flow, strong and dense
- West/Center: NE flow, medium intensity
- South: N to NNE flow, converging toward the city center
- Along rivers (Tonle Sap & Mekong): Channeled and intensified flow
- River confluence (W-NW of FFI): Local N-NW vortex around the peninsula
- Heat island center: Weak, turbulent flow with thermal mixing
Seven AWS locations are marked on the map: AUPP, TKK, RUPP1, RUPP2, FFI, DKA, and BPH.
| Control | Function |
|---|---|
| SW → NE / NE → SW | Toggle wind direction between SW monsoon and NE monsoon |
| Speed | Adjusts particle movement speed (0.2×–3×) |
| Particles | Number of animated particles (300–3000) |
| Opacity | Transparency of the particle layer |
- Single self-contained HTML file (~320 KB), no external dependencies
- Base map embedded as Base64 JPEG
- Wind field computed via IDW interpolation of sampled vectors
- Particle system rendered on HTML5 Canvas with
requestAnimationFrame - Retina/HiDPI display support via
devicePixelRatio
- Urban Climate Map: INKEK — Institute for Climate and Energy Concepts, commissioned by the German Federal Ministry of Research, Technology and Space (FONA), January 2023
- Wind measurements: Build4People Project, WP5 Urban Climate, Automatic Weather Stations
Map data and climate analysis © Build4People Project / INKEK. This visualization is provided for research and educational purposes.