We want to calculate these climate indexes for 20 countries(stations).
We have daily rainfall data for these countries in an Excel file.
1- Consecutive dry days (CDD). The greatest number of consecutive days
with precipitation lower than 1 mm, within a year.
2- Consecutive wet days (CWD). The greatest number of consecutive days
with precipitation higher or equal to 1 mm, within a year.
3- The annual count of rainy days (RR1). The annual count of days with
observed rainfall greater than 1 mm.
4- The annual count of days with precipitation larger than 20mm (R20).
5- The Highest 5-day precipitation amount for each year (R5D).
6- Simple precipitation intensity index (SDII). The annual sum of precipitation
during wet days (precipitation > 1 mm) divided by the annual count of wet days
