2025
0.6
days ≥35°C
Territory Intelligence · V0
Wien
AT · AT001F · evidence-led territorial profile
Discover · Recorded observation · Research preview
How did extreme-heat days change here?
-2.7 days ≥35°C
Difference in the annual number of days at or above 35°C between 2015 and 2025 in this research territory. This two-year comparison is descriptive: it does not establish a persistent trend or explain its cause.
Understand · Measurement and limits
What does this number actually mean?
This is the difference between two annual observations, not a forecast, causal attribution or city ranking. Annual variation can be substantial. Consult the full time series below before interpreting a long-term direction.
Heat · H06A
Annual hot-day trajectory · 1950–2025
10-year change
-2.7
days · 2015→2025
Long-run trend
+0.03
days per decade · descriptive
Air quality
Annual mean exposure
RESEARCH / BUILDABILITY
PM10
15.12022
13.22023
µg/m³ · EEA interpolated surface
RESEARCH / BUILDABILITY
PM2.5
10.12022
9.12023
9.42024
µg/m³ · EEA interpolated surface
What changed? · Continuous Knowledge
Changes worth noticing.
This section will become the change log of the territory as new evidence vintages are admitted. For now it reports only changes already supported by the V0 evidence.
Observed · H06A
-2.7 hot days
Change in annual days ≥35°C from 2015 to 2025. Descriptive observation, not attribution.
Evidence watch
2 air-quality series
Current V0 air evidence is shown with its research/buildability status. Missing or held evidence remains visible rather than inferred.
Long-duration decision view · preview
What deserves diligence or monitoring?
A decision-support lens, not an investment recommendation. It highlights observed conditions, trajectory and evidence gaps that may merit further diligence.
State
Latest observed heat: 0.6 days ≥35°C. Air-quality observations are kept separate by metric and vintage.
Trajectory
Heat trend: +0.03 days/decade. This is descriptive historical evidence, not a forecast.
Watch
Monitor new source vintages, evidence-quality changes and territorial trajectories. No investment recommendation is produced.
Evidence gap
The V0 does not yet support a complete territorial investment thesis. Water, broader physical risk, affordability, infrastructure and other dimensions remain outside this bounded view unless separately admitted.
Evidence drill-down
From claim back to source.
Every displayed metric should remain traceable to its source, vintage, geography, QA and rights state.
Evidence
Source before claim.
This V0 exposes research/buildability evidence. Trends are descriptive, not causal attribution or forecasts.