analysis_monthnumberdefault: 71–12 (step 1)Month for the representative design day (1 = January, 12 = December).
July/August gives worst-case summer heat stress. December/January gives worst-case cold discomfort. Spring/autumn months reveal shoulder-season usability of public spaces.
analysis_hournumberdefault: 146–22 (step 1)Hour of day for the snapshot (0–23).
14:00 is typically the hottest hour and peak outdoor stress. 08:00–10:00 represents morning school/commute conditions. 20:00 captures evening terrace and park use.
air_temperature_cnumberdefault: 32-10–50 (step 1)Ambient dry-bulb air temperature for the analysis hour.
Use site weather data or a climate projection value. Combine with the Urban Heat Island model output (+2–4°C) to assess future urban conditions.
relative_humidity_pctnumberdefault: 5010–100 (step 5)Ambient relative humidity for the analysis hour.
High humidity amplifies heat stress (UTCI rises sharply above 60 % RH at high temperatures). Dry climates may show moderate UTCI even at high temperatures.
wind_speed_msnumberdefault: 20–15 (step 0.5)Mean wind speed at pedestrian level (10 m reference height).
Higher wind speeds significantly reduce UTCI in summer (cooling effect). In winter they increase cold stress. Use 1–3 m/s for sheltered urban contexts, 3–6 m/s for exposed hilltop sites.
comfort_classselectdefault: utciutci | petUTCI classification scheme used to label output zones.
UTCI (ISO) is the international standard. PET (Physiological Equivalent Temperature) is preferred in German-speaking countries and some Asian standards. Both use the same geometry inputs.
Default settings represent a hot summer afternoon. Run to see a baseline comfort map, then test the impact of design interventions: - Add trees to the environment layer → rerun to see MRT reduction - Increase wind speed to simulate a proposed wind corridor - Raise air temperature by +2–4 °C to test climate-change scenarios Combine with the Urban Heat Island model to use a localised air temperature rather than the airport weather station value.