# Climate Hazard Diagnostics - Fluvial Floods

Emmi — version 1.3

## Description

This dataset quantifies fluvial flood hazard intensity, 100-year return period inundation depth (m), exceedance probability, and asset average annual loss at 0.0083° (~1 km) spatial resolution. The dataset has global river basin coverage for a historical baseline (1980) and the years 2030, 2050, and 2080 under IPCC climate scenarios RCP4.5 and RCP8.5.

## Summary

- **ID:** 9e2f989c-1df1-44d6-b281-9252002f388a
- **Type:** Raster
- **CRS:** EPSG:4326
- **Spatial coverage:** Global
- **Spatial resolution:** 1 km
- **Temporal coverage:** 1980-2080
- **Temporal resolution:** Irregular

## Usage notes

Spatial coverage is limited to global river basins and does not include local flood defences or drainage infrastructure. The historical baseline represents a modelled pre-acceleration climate state, not actual conditions in 1980. Future years should be interpreted relative to the baseline, not in isolation as absolute hazard levels. Average annual loss is calibrated to present-day conditions (~2025), enabling assessments of current risk to assets alongside change over time. Meaningful differences among climate scenarios typically occur from 2050 onwards.

## Variables

### average_annual_loss_baseline
- **Type:** float32
- **NoData:** NaN
Expected annual damage as a fraction of asset value for the historical baseline (1980). Data is the product of flood intensity, flood probability, and a damage calibration factor derived from 1990-2024 disaster losses across 27 countries.

### average_annual_loss_rcp4p5
- **Type:** float32
- **NoData:** NaN
Expected annual damage as a fraction of asset value for 2030, 2050, and 2080 under IPCC climate scenario RCP4.5. See average annual loss baseline variable for methodology.

### average_annual_loss_rcp8p5
- **Type:** float32
- **NoData:** NaN
Expected annual damage as a fraction of asset value for 2030, 2050, and 2080 under IPCC climate scenario RCP8.5. See average annual loss baseline variable for methodology.

### depth_meters_baseline
- **Type:** float32
- **Units:** m
- **NoData:** NaN
Expected flood depth of a 100-year (1% probability) fluvial flood event for the historical baseline (1980). Data is derived from the GLOFRIS framework coupling the PCR-GLOBWB 2 hydrological model with CaMa-Flood inundation routing, as provided by the WRI Aqueduct Floods dataset.

### depth_meters_rcp4p5
- **Type:** float32
- **Units:** m
- **NoData:** NaN
Expected flood depth of a 100-year (1% probability) fluvial flood event for 2030, 2050, and 2080 under IPCC climate scenario RCP4.5. See depth meters baseline variable for methodology.

### depth_meters_rcp8p5
- **Type:** float32
- **Units:** m
- **NoData:** NaN
Expected flood depth of a 100-year (1% probability) fluvial flood event for 2030, 2050, and 2080 under IPCC climate scenario RCP8.5. See depth meters baseline variable for methodology.

### intensity_baseline
- **Type:** float32
- **NoData:** NaN
Intensity of a 100-year fluvial flood event for the historical baseline (1980). Data is generated by square-root normalising depth meters baseline variable into a dimensionless index using Joint Research Centre global depth-damage relationships.

### intensity_rcp4p5
- **Type:** float32
- **NoData:** NaN
Intensity of a 100-year fluvial flood event for 2030, 2050, and 2080 under IPCC climate scenario RCP4.5. See intensity baseline variable for methodology.

### intensity_rcp8p5
- **Type:** float32
- **NoData:** NaN
Intensity of a 100-year fluvial flood event for 2030, 2050, and 2080 under IPCC climate scenario RCP8.5. See intensity baseline variable for methodology.

### probability_baseline
- **Type:** float32
- **NoData:** NaN
Annual probability of fluvial flood depths exceeding damage-relevant thresholds for the historical baseline (1980). Data is generated by calculating ensemble probabilities of exceeding thresholds across multiple inundation levels from WRI Aqueduct data.

### probability_rcp4p5
- **Type:** float32
- **NoData:** NaN
Annual probability of fluvial flood depths exceeding damage-relevant thresholds for 2030, 2050, and 2080 under IPCC climate scenario RCP4.5. See probability baseline variable for methodology.

### probability_rcp8p5
- **Type:** float32
- **NoData:** NaN
Annual probability of fluvial flood depths exceeding damage-relevant thresholds for 2030, 2050, and 2080 under IPCC climate scenario RCP8.5. See probability baseline variable for methodology.

## Pricing

https://drive.google.com/file/d/1yXFFwCUKxMz9PQKVHrFFMZvoukNKx87h/view?usp=sharing

| Volume | Price |
| --- | --- |
| Any (Entry tier) | $5/ha |
| Any (Subscription tier) | $0.5/ha |