The CHEWMA Chart: A New Statistical Control Approach for Microclimate Monitoring in Preventive Conservation of Cultural Heritage.

ABSTRACT: A new statistical control chart denoted as CHEWMA (Cultural Heritage EWMA) is proposed for microclimate monitoring in preventive conservation. This tool is a real-time detection method inspired by the EN 15757:2010 standard, serving as an alternative to its common adaptations. The proposed control chart is intended to detect short-term fluctuations (STFs) in temperature (T) and relative humidity (RH), which would enable timely interventions to mitigate the risk of mechanical damage to collections. The CHEWMA chart integrates the Exponentially Weighted Moving Average (EWMA) control chart with a weighting mechanism that prioritizes fluctuations occurring near extreme values. The methodology was validated using RH time series recorded by seven dataloggers installed at the Alava Fine Arts Muse

SUBMITTER: Diaz-Arellano I 

PROVIDER: S-EPMC11861538 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature