Table 1 The extreme precipitation indices used in this study.

From: Extreme precipitation patterns in the Asia–Pacific region and its correlation with El Niño-Southern Oscillation (ENSO)

Index 

Definitions 

Units 

Category

PRCPTOT 

Total precipitation from wet days during a specific period (Annual/seasonal) 

mm 

i

SDII 

Average precipitation intensity from wet days 

mm/day 

i

WetDays 

Count of days with daily precipitation depth ≥ 1 mm during a specific period 

days 

i

Rx1day 

Maximum 1-day precipitation during a specific period 

mm 

i

Rx5day 

Maximum 5-day precipitation during a specific period 

mm 

i

R95p 

Total annual precipitation from days with daily precipitation > 95th percentile 

mm 

ii

R99p 

Total annual precipitation from days with daily precipitation > 99th percentile 

mm 

ii

R10mm 

Annual count of days when precipitation ≥ 10 mm 

days 

ii

R20mm 

Annual count of days when precipitation ≥ 20 mm 

days 

ii

CWD 

Maximum length of wet spell: maximum number of consecutive days with RR ≥ 1 mm 

days 

iii

CDD

Maximum length of dry spell: maximum number of consecutive days with RR < 1 mm 

days 

iii