Clima Storico — Temperatura del Suolo (28–100 cm)

Microclimatev01.00 credits/fixed

Responsible:Niccolò Calandri

Historical Climate — Soil Temperature (28–100 cm)

Overview

The Historical Climate — Soil Temperature (28–100 cm) indicator shows the historical time series of soil temperature in the deep layer (28–100 cm), based on ERA5-Land reanalysis data. At this depth, thermal oscillations are strongly damped and phase-shifted relative to the surface: seasonal amplitudes are reduced and temperature changes lag atmospheric events by weeks to months, making this layer a reliable indicator of long-term climate trends. The thermally stable environment is critical for the survival of deep-rooted trees and perennial shrubs during extreme climate stress.

Calculation Methodology

Data from the Open-Meteo Historical Weather API (ERA5-Land reanalysis, 1940–present, ~10 km). Variable: soil_temperature_28_to_100cm.

Data Sources

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

References

Hersbach, H. et al. (2020). QJRMS, 146(730), 1999-2049.
Muñoz-Sabater, J. et al. (2021). ESSD, 13, 4349-4383.
Open-Meteo Historical Weather API

Data Sources & References

Sources

WRD_OPNMT_99

Methodology

Historical series of soil temperature in the 28–100 cm layer based on ERA5-Land reanalysis. Open-Meteo variable: soil_temperature_28_to_100cm. Source: Open-Meteo Historical Weather API. Unit: °C.