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Table 3 Climate extreme indices calculated for the Bărăgan Plain

From: A farmer-based analysis of climate change adaptation options of agriculture in the Bărăgan Plain, Romania

Index Short name Definition Unit Time scale Relevance Reference
Length of growing season GSL Number of days with Tmean ≥ 5 °C for 5 consecutive days days Annual, seasonal Length of vegetation season ETCCDI
Early spring coefficient ES Sum of mean temperatures ≥0 °C in February-March interval Units Monthly interval Start of the vegetation season Sandu et al. (2010); MADR (2014)
Frost days Tmin0 Number of days with Tmin ≤ 0 in November-March interval Units November-March Cold stress (relevant especially for winter wheat) Sandu et al. (2010); MADR (2014)
Frost units FU Sum of mean temperatures < 0 °C over November-March interval Units November-March Cold stress Sandu et al. (2010); MADR (2014)
Extremely hot units Tmax32 Maximum number of 3 or 5 consecutive days with Tmax ≥32 Units Annual, seasonal Heat stress Sandu et al. (2010); MADR (2014)
Tropical days Tmax30 Number of days with Tmax ≥30 Days Annual, seasonal Critical (lethal) thresholds for crops ETCCDI