Waves are due to the cyclical occurrence of phenomena.
Indicator |
Metric |
Heat Wave |
maximum count of consecutive days when Tmax > average Tmax (baseline year) + 3.0 oC (minimum seven days) |
Cold Spell |
maximum count of consecutive days when Tmin < average Tmin (baseline year) - 3.0 oC (minimum seven days) |
Dry Spell |
maximum consecutive count of P < Pt |
Wet Spell |
maximum consecutive count of P > Pt |
Tmax (oC): maximum air temperature
Tmin (oC): minimum air temperature
P (mm): precipitation
Pt (mm): minimum threshold precipitation (e.g. 0.2 mm)
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