Technical Note: Methodological Framework for the Spatio-Temporal Digitization of 18th-Century Atmospheric Observations

This technical note describes the methodological protocol developed for the collection, curation, and digitization of the A Geospatial Catalog of Atmospheric Observations in 18th-Century Iberian Documentary Sources ([Dataset] doi.org/10.5281/zenodo.20110153). It details a workflow structured into four critical phases—semantic-documentary analysis, geographic standardization (GIS), spatio-temporal vector estimation, and phenomenological classification—designed to transform qualitative historical testimonies from primary sources into quantitative, interoperable datasets. This document serves as a technical framework to ensure signal integrity, source traceability, and reproducibility in the spatial analysis of historical atmospheric events.