Growing-stage Thermal Threshold Classes (TTC) Trends

These NetCDF datasets describe potato thermal exposure across Europe using daily mean air temperature. The workflow classifies each daily temperature value into one of seven Thermal Threshold Classes (TTCs), ranging from drastic cold to drastic hot, using potato-relevant temperature thresholds. The resulting counts represent the number of days in each class for each grid cell, year, and, where relevant, phenological stage.

The regional growing-season windows used in the analysis distinguish northern, central, and southern Europe. The stage-wise datasets further split the growing season into four phenological stages, allowing thermal exposure to be interpreted during agronomically important periods rather than only as a whole-season summary.

This directory contains stage-wise Mann-Kendall trend results for annual TTC frequencies. Four NetCDF files are included, one for each growing stage. Each file stores trend direction and p-values for the seven TTC classes.