What is it about?
The earliest thermometer that was able to provide quantitative and comparable temperature readings was a spirit-in-glass thermometer, invented in Florence in 1642 ca and used in an international Network leaded fron the Granduke of Tuscany from 1654 to 1670. This Netwok provided good-quality weather measurements in the mid 17th century. In this paper the records are compared with the temperature reconstructions made in UK over the same period (CET series)
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Why is it important?
The records taken with the Little Florentine Thermometers constitute the earliest temperature record in the World, and a unique opportunity to validate past climate reconstructions from models or proxies.
Perspectives
Early instruments and early series are extremely rare and constitute a unique objective reference for calibration. This paper shows problems and limits encountered with the above items.
Dr, Prof Dario Camuffo
Institute of Atmospheric Sciences and Climate
Read the Original
This page is a summary of: The earliest spirit‐in‐glass thermometer and a comparison between the earliest CET and Italian observations, Weather, July 2012, Wiley,
DOI: 10.1002/wea.1913.
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