Population & infrastructure risk exposure

How many people and which facilities are exposed to a hazard, before any event — a baseline for preparedness.

Use Case 1 · Risk · before the event. Compares a hazard layer against a threshold to build a hazard mask, overlays population and facilities, and aggregates exposed population and facility counts per subdivision.

The hazard and population grids in this version are synthetic so the pipeline can be exercised without large downloads. Swap the loaders for STORM / Aqueduct / GEM / GlobFire rasters and WorldPop / GHSL to make it real; the method (mask → overlay → zonal statistics) stays the same.

Parameters schema · 8 fields

Parameter	Type	Default	Description
Hazard `hazard`	string · 5 options	flood
Age disaggregation `age_group`	string · 4 options	all
Event return period (years) `return_period`	integer · 5 options	100	For floods and cyclones.
Climate scenario `climate_scenario`	string · 3 options	current
Aggregation subdivisions `aggregation_level`	integer · 3 options	2	Admin level used for zonal statistics.
Population data `population_source`	string · 3 options	worldpop_100m
Hazard intensity threshold `intensity_threshold`	number	0.5	Normalised 0–1 in this illustrative version (e.g. flood depth, wind speed, shaking intensity).
Infrastructure layers `infrastructure_layers`	array · 4 options	['schools', 'hospitals']

Recent runs 15 total

Run	Target	Parameters	Status	Created
`40a419ed` Population & infrastructure risk exposure	Seti Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`28838c31` Population & infrastructure risk exposure	Sagarmatha Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`ebdb943c` Population & infrastructure risk exposure	Rapti Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`7fbe7b52` Population & infrastructure risk exposure	Narayani Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`e8ac7b16` Population & infrastructure risk exposure	Mechi Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`7a8c1290` Population & infrastructure risk exposure	Mahakali Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`cac7f4a1` Population & infrastructure risk exposure	Lumbini Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`a70aa0a4` Population & infrastructure risk exposure	Koshi Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`4ca5e1ce` Population & infrastructure risk exposure	Karnali Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open
`ed3cc517` Population & infrastructure risk exposure	Janakpur Nepal · Admin 2	Hazard: flood · Age disaggregation: all · Event return period (years): 100 · Cl…	Published	an hour ago Manual (UI)	Open