SinkAlert fuses satellite, gauge, radar and citizen-reported data into a single verified picture of risk — sinkholes, flood, fire, drought and earthquakes — so officers can act and citizens can report in one loop.
Every layer on the map is a real, cited observation — never a fabricated score. The system is deliberately key-light: nearly all sources are free and government-authoritative.
Synthetic-aperture radar detects standing water through cloud, day or night. National coverage, ~85 polygons.
SATELLITE · NO KEYForecast discharge vs 30-year daily maximum → flood signal when ratio ≥ 1.0 on 10 Thai river points.
FREE APIGridded rainfall satellite product → aggregated into 403 hexagons covering all of Thailand.
SATELLITELive precipitation radar tiles for the current rain field, updated on a rolling window.
LIVEAuthoritative per-tambon impact: flood 86,735 rai / 12,200 people · fire 765,539 rai burned · drought soil-moisture (SMAP).
GOVERNMENT4,448 rain gauges + 1,407 water-level stations, clustered and clickable, with overflow flags.
GOVERNMENT · LIVESatellite soil moisture → 132 hexagons on a dry→wet scale. Sparse by design (vegetated land only, ~33%).
SATELLITELive seismic events (M2.5+) rendered as points with magnitude.
LIVEThermal anomalies (active fires) as point hotspots overlaid with GISTDA burned-area totals.
SATELLITE54 BMR sinkhole/collapse events (49 unique) harvested and verified from news — the core Bangkok dataset.
VERIFIEDSatellite, street, topographic and 3D-terrain backdrops. CARTO free tier (5M tiles/mo).
FREECrowd-sourced photos + GPS from the public, passed through a verification + anti-spam pipeline.
LIVESinkAlert follows the WMO people-centred early-warning model — four interlocking pillars that turn raw observation into action. The whole system is one loop: observe → verify → visualize → warn → respond.
Know what threatens whom and where.
Detect hazards as they develop.
Get the picture to decision-makers.
Act with a shared operating picture.
Satellites, gauges, radar, citizens feed the system
→Anti-spam, PII scrub, relevance + AI check
→Hazards layered on the command map
→Impact rings, CAP drafts, severity mix
→Triage, dispatch, export for reporting
Bangkok-centric multi-hazard command screen for officers — sinkholes, hazards, citizen reports, impact rings.
Thailand-wide flood / fire / drought picture — rainfall hexagons, satellite extent, GISTDA impact panels.
Cesium 3D globe for situational context — aircraft, ships, satellites, environmental events.
Every toggle on the command map (dashboard.html), grouped exactly as it appears in the layer panel — with its default state.
| Toggle | Default | What it does |
|---|---|---|
| 3D Buildings | OFF | Extrudes building footprints in 3D for height context over the sinkhole zones. |
| Terrain DEM | OFF | Hillshade / elevation shading from a 30m digital elevation model (GLO-30). |
| Road Network | ON | Road lines — the backbone for locating collapses and routing response. |
| Administrative Boundary | OFF | District / province borders for jurisdiction and reporting context. |
| Toggle | Default | What it does |
|---|---|---|
| Incident density heat | ON | Heatmap of sinkhole/collapse density across Bangkok — where risk clusters. |
| News sinkholes (2024–2026) | ON | The 54 verified sinkhole / road-collapse events harvested from news (49 unique). |
| Impact ring — 1 km | OFF | Draws a 1 km impact ring around each sinkhole to scope the immediate area. |
| Impact ring — 3 km | OFF | A 3 km ring for wider patrol / buffer-zone assessment. |
| Impact ring — 5 km | OFF | A 5 km ring for regional planning. All three can be toggled independently. |
| National news pins | ON | Nationwide verified incidents as map pins, beyond the Bangkok core. |
| Citizen reports (live) | ON | Crowd-sourced reports from LINE + web, shown as purple triangles with photo popups. |
| GISTDA flood extent | OFF | Satellite-detected flood polygons from the Thai space agency. |
| RF enterprise pilot screening | OFF | Optional ML risk-screening layer. Research only — operational_use=false, never auto-CAP. |
| Toggle | Default | What it does |
|---|---|---|
| Earthquakes (USGS) | ON | Live USGS seismic events (M2.5+) with magnitude markers. |
| Fire hotspots | ON | Active fire thermal anomalies (NASA FIRMS / VIIRS). |
| Flood / rain watch | ON | GloFAS river-forecast alerts + rainfall watch for the Chao Phraya / Mekong basins. |
Two roles, one loop. Officers consume and act; citizens feed ground truth. The same verified map is the shared operating picture for both.
operational_use=false, never auto-issues alerts.