Clima Storico — Temperatura del Bulbo Umido

Microclimatev01.00 credits/fixed

Responsible:Niccolò Calandri

Historical Climate — Wet Bulb Temperature

Overview

The Historical Climate — Wet Bulb Temperature indicator shows the historical trend of wet bulb temperature at 2 metres above ground. For each day, mean, maximum, and minimum values are provided. Wet bulb temperature combines temperature and humidity effects to estimate heat stress on organisms.

This parameter is directly related to evaporative cooling capacity: when wet bulb temperature approaches body temperature, sweat-based cooling becomes ineffective, making it critical for heat stress assessment in agriculture, wildlife, and pollinators.

Calculation Methodology

Data come from the Open-Meteo Historical Weather API. The variable used is wet_bulb_temperature_2m (wet bulb temperature at 2m, daily mean, max, min). Data are interpolated to the site's position.

Data Sources

Code	Name	Provider	Type	Coverage	Availability
`WRD_OPNMT_99`	Open-Meteo Historical Weather	Open-Meteo	db	Global	1940 - present

References

Stull, R.B. (2011). Journal of Applied Meteorology and Climatology, 50(11), 2267-2269.
Raymond, C. et al. (2020). Science Advances, 6(19).
Open-Meteo Historical Weather API

Data Sources & References

Sources

WRD_OPNMT_99

Methodology

Historical trend of 2m wet-bulb temperature. Open-Meteo variable: wet_bulb_temperature_2m (daily average, max, min). Source: Open-Meteo Historical Weather API. Unit: °C.