Nr.

Indices

Abbrev.

Unit

Nr.

Indices

Abbrev.

Unit

1.

Annual total precipitation

RR

mm

2.

No. of wet days (≥0.5 mm)

RR5

days

3.

Moderate precipitation days (≥10 mm)

RR10

days

4.

Heavy precipitation days (≥25 mm)

RR25

days

5.

Very heavy precipitation days (≥50 mm)

RR50

days

6.

Extreme heavy precipitation days (≥100 mm)

RR100

days

7.

Highest 1-day precipitation amount

RX1day

mm

8.

Highest 3-day precipitation amount

RX3day

mm

9.

Highest 5-day precipitation amount

RX5day

mm

10.

Highest 7-day precipitation amount

RX7day

mm

11.

Maximum no. of consecutive wet days

MCWD

days

12.

Maximum no. of consecutive dry days

MCDD

days

13.

Simple precipitation intensity index

SDII

mm/wd

14.

No. of moderate wet days >75 percentage

R75p

days

15.

Precipitation fraction due to moderate wet days

R75pTOT

%

16.

No. of very wet days >95 percentage

R95p

days

17.

Precipitation fraction due to very wet days

R95pTOT

%

18.

No. of extremely wet days >99 percentage

R99p

days

19.

Precipitation fraction due to extremely wet days

R99pTOT

%

20.

Annual total precipitation in wet days

PRCPTOT

mm