Flood Sample

This page provides a complete sample response for a flood hazard from the Active Hazards API endpoint. Flood hazards are sourced from the NASA Global Flood Model, which combines satellite observations (VIIRS, DFO) with hydrological models (GloFAS, GFMS) to identify and monitor flooding events worldwide.

Flood-Specific Properties

Incident Data

The incident.properties object for flood hazards contains data from the NASA Global Flood Model:

  • senderName - Source name (e.g., "The NASA Global Flood Model")

  • pfafId - Primary Pfafstetter basin identifier

  • pfafIdList - Comma-separated list of all affected basin IDs

  • rfrScore - Scaled riverine flood risk score

  • cfrScore - Scaled coastal flood risk score

  • scaledRiverineRisk - Normalized riverine risk (0-100)

  • scaledCoastalRisk - Normalized coastal risk (0-100)

  • hazardScore - Overall hazard score combining all metrics

  • GloFAS2Yr / GloFAS5Yr / GloFAS20Yr - GloFAS return period exceedance flags

  • VIIRSTotalScore - VIIRS satellite observation total score

  • DFOTotalScore - Dartmouth Flood Observatory total score

  • oneDayFloodAreaKm / fiveDayFloodAreaKm - Flood area in km² over 1/5 day windows

  • incidentSeverity - Flood severity classification (ADVISORY, WATCH, WARNING)

  • flag - Risk level flag value

Features

The features property for floods contains two types of GeoJSON features:

  • INCIDENT features: MultiPolygon geometries representing the actual flood-affected areas (watershed boundaries). Properties include all the risk scores, satellite observation data, and severity levels from the incident.

  • WATERSHED features: Point features representing individual affected watersheds. Properties include pfafId, nameAdmin0 (country), nameAdmin1 (region), centroidX/centroidY, admin1Names, and incidentSeverity.

Exposure Areas

Floods use a single exposure level:

  • Level 1: Combined water basins at Watch or Warning severity

Sample Response

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Note: Coordinate arrays have been replaced with [...] for brevity. The features array has been truncated to show representative INCIDENT and WATERSHED feature types. In actual API responses, all affected watersheds are included. This sample contained 1 INCIDENT feature and 53 WATERSHED features spanning Bangladesh, Myanmar, Bhutan, and Nepal.

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