ReadMe for CanHomW.docx (English)

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2026-08-04

Version 2 of the Canadian homogenized wind speed (CanHomW V2) datasets contain homogenized monthly and daily mean wind speed data series for the period 1953-2023 for 154 long-term stations in Canada. As detailed in Wang et al. (2025), the monthly dataset (CanHomW mlyV2) was produced using a modified version of the comprehensive semi-automatic changepoint detection procedure developed by Wang et al. (2023), which includes homogeneity testing with and without using a reference series. To produce the homogenized daily wind speed dataset (CanHomW dlyV2), daily wind speed data series were tested to find the most probable day of an artificial change detected in the corresponding monthly data series whenever the exact date of change in the daily series is undocumented. The Twentieth Century Reanalysis 20CRv3 ensemble-mean series of monthly wind speeds (Slivinski et al., 2019), 49 monthly mean geostrophic wind speeds derived from surface pressure data, and up to four nearest stations’ data series were used as reference in the homogeneity tests. However, no reference was used to adjust the data series to diminish the detected inhomogeneities. This is because the density of long-term wind…

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