Clima Storico — Pressione Atmosferica

Microclimatevv0

Responsible:Niccolò Calandri

Historical Climate — Atmospheric Pressure

Overview

The Historical Climate — Atmospheric Pressure indicator shows the historical trend of atmospheric pressure at mean sea level. For each day, mean, maximum, and minimum values are provided. Atmospheric pressure is a fundamental indicator of synoptic-scale weather patterns.

Pressure variations drive atmospheric circulation, precipitation formation, wind regimes, and the succession of high and low pressure systems. Pressure is reduced to sea level to ensure comparability between sites at different altitudes.

Calculation Methodology

Data come from the Open-Meteo Historical Weather API. The variable used is pressure_msl (mean sea level pressure, 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

Holton, J.R. & Hakim, G.J. (2012). An Introduction to Dynamic Meteorology. Academic Press.
Open-Meteo Historical Weather API

Data Sources & References

Sources

WRD_OPNMT_99

Methodology

Historical trend of atmospheric pressure at sea level. Open-Meteo variable: pressure_msl (daily average, max, min). Source: Open-Meteo Historical Weather API. Unit: hPa.