Sample evidence

Climate and flood-risk reports that show the Arasense workflow.

These public examples summarize outputs generated by the Arasense console: trust-weighted projections, scenario comparison, multi-hazard profiling, portfolio ranking, and validation-stage flood screening.

Bologna projection

Flood-driving rainfall, mid-century

Maximum 1-day precipitation, historical 1995-2014 vs future 2040-2059. Trust-weighted CMIP6 projection using models that pass Aras Diagram skill screening.

+5.73 mmProjected max 1-day precipitation change.
+14.2%Relative increase from the historical baseline.
78%Trusted-model weight agreeing on increase.
BaselineFutureSpreadTrusted models
40.23 mm45.97 mm-0.26 to +11.73 mm32 of 34
Scenario comparison

SSP2-4.5 vs SSP5-8.5

The historical baseline and model trust are held constant; only emissions scenario changes.

ScenarioFutureChangeAgreement
SSP2-4.545.97 mm+14.2%78%
SSP5-8.545.64 mm+13.5%74%
Multi-hazard profile

Bologna hazard signals

A single location profile across rainfall, heat, and drought indicators under SSP2-4.5.

HazardToday2050Change
Flood-driving rainfall44.20 mm48.95 mm+4.75 mm
Heat37.4 C40.8 C+3.4 K
Drought62.8%64.2%+1.4 pts
Portfolio ranking

Italian flood-exposure pilot

Locations ranked by trust-weighted mid-century change in maximum 1-day precipitation.

RankLocationToday2050ChangeAgreement
1Rome39.91 mm47.40 mm+7.49 mm (+19%)100%
2Milan63.90 mm72.10 mm+8.20 mm (+13%)79%
3Florence46.17 mm51.45 mm+5.28 mm (+11%)80%
4Bologna44.20 mm48.95 mm+4.75 mm (+11%)100%
5Venice52.96 mm54.70 mm+1.74 mm (+3%)56%
Validation-stage flood screening

Emilia-Romagna / Bologna, May 2023 flood

Validation-stage flood screening compared against a Sentinel-1 threshold mask. The event hindcast uses ERA5-Land observed precipitation, not a free-running climate model.

15.217Event precipitation, mm/day.
2.0678Rainfall anomaly in standard deviations.
100%Probability of detection in this sample case.
Validation metrics are useful for pilot evaluation and model improvement. They are not operational accuracy claims.
Flood outputs are validation-stage screening evidence. They are not a replacement for hydraulic modelling, field validation, local calibration, or engineering-grade flood forecasting.