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Table 1 Definitions of 6 temperature indices and 5 precipitation indices used in this study; all of the indices are calculated using RClimDex

From: Characteristics of meteorological disasters and their impacts on the agricultural ecosystems in the northwest of China: a case study in Xinjiang

ID

Indicator name

Definitions

UNITS

Cold extremes

TN10p

Cool nights

Percentage of days when TN < 10th percentile

Days

TNn

Coldest nights

Monthly minimum value of daily minimum temp

°C

CSDI

Cold spell duration indicator

Annual count of days with at least 6 consecutive days when TN < 10th percentile

Days

Warm extremes

TX90p

Warm days

Percentage of days when TX > 90th percentile

Days

TXx

Warmest days

Monthly maximum value of daily maximum temp

°C

WSDI

Warm spell duration indicator

Annual count of days with at least 6 consecutive days when TX > 90th percentile

Days

Variability extremes

DTR

Diurnal temperature range

Monthly mean difference between TX and TN

°C