Definitions of 11 temperature indices used in this study
| Indices notation . | Indices name . | Units . | Description . |
|---|---|---|---|
| TXX | Monthly maximum value of daily maximum temperature | °C | Let TXkj be the daily maximum temperatures in month k, period j. Then, TXX = max (TXkj) |
| TNX | Monthly maximum value of daily minimum temperature | °C | Let TNkj be the daily minimum temperatures in month k, period j. Then, TNX = max (TNkj) |
| TXN | Monthly minimum value of daily maximum temperature | °C | Let TXkj be the daily maximum temperatures in month k, period j. Then, TXN = min (TXkj) |
| TNN | Monthly minimum value of daily minimum temperature | °C | Let TNkj be the daily minimum temperatures in month k, period j. Then, TNN = min (TNkj) |
| TN10p | Cold nights | % days | Percentage of days when TN <10th percentile of the threshold |
| TN90p | Warm nights | % days | Percentage of days when TN >90th percentile of the threshold |
| TX10p | Cold days | % days | Percentage of days when TX <10th percentile of the threshold |
| TX90p | Warm days | % days | Percentage of days when TX >90th percentile of the threshold |
| WSDI | Warm spell duration index | days | Annual count of days with at least 6 consecutive days when TX >90th percentile of the threshold |
| CSDI | Cold spell duration indicator | days | Annual count of days with at least 6 consecutive days when TN <10th percentile of the threshold |
| DTR | Diurnal temperature range | °C | Monthly mean difference between daily maximum and minimum temperatures |
| Indices notation . | Indices name . | Units . | Description . |
|---|---|---|---|
| TXX | Monthly maximum value of daily maximum temperature | °C | Let TXkj be the daily maximum temperatures in month k, period j. Then, TXX = max (TXkj) |
| TNX | Monthly maximum value of daily minimum temperature | °C | Let TNkj be the daily minimum temperatures in month k, period j. Then, TNX = max (TNkj) |
| TXN | Monthly minimum value of daily maximum temperature | °C | Let TXkj be the daily maximum temperatures in month k, period j. Then, TXN = min (TXkj) |
| TNN | Monthly minimum value of daily minimum temperature | °C | Let TNkj be the daily minimum temperatures in month k, period j. Then, TNN = min (TNkj) |
| TN10p | Cold nights | % days | Percentage of days when TN <10th percentile of the threshold |
| TN90p | Warm nights | % days | Percentage of days when TN >90th percentile of the threshold |
| TX10p | Cold days | % days | Percentage of days when TX <10th percentile of the threshold |
| TX90p | Warm days | % days | Percentage of days when TX >90th percentile of the threshold |
| WSDI | Warm spell duration index | days | Annual count of days with at least 6 consecutive days when TX >90th percentile of the threshold |
| CSDI | Cold spell duration indicator | days | Annual count of days with at least 6 consecutive days when TN <10th percentile of the threshold |
| DTR | Diurnal temperature range | °C | Monthly mean difference between daily maximum and minimum temperatures |