Precipitation evolution in the Pyrenees is analyzed from the daily precipitation series for the period 1959-2020 recorded at 26 representative observation points of the entire Massif (different altitudes, different slopes, etc.), and which have exceeded various quality control and homogeneity processes. With these daily precipitation data, the annual values of 12 climate change indicators have been calculated and, subsequently, the trend value for each of them.
The 12 climate change indicators related to precipitation that have been analyzed are :
Annual precipitation (PPT) / Maximum 1-day precipitation (RX1day)
Maximum 5-day precipitation (RX5day) / Simple daily intensity index (SDII)
Days with PPT ≥ 10 mm (R10) / Days with PPT ≥ 20 mm (R20) / Days with PPT ≥ 50 mm (R50)
Consecutive dry days (CDD) / Consecutive wet days (CWD)
Precipitation due to very wet days (R95p) / Precipitation due to extremely wet days (R99p)
Total precipitation in wet days (PRCPTOT)
Below you can access each of the aforementioned indicators, with information on their definition, the calculation methodology and the temporal evolution graphs for each series and for different areas of the Pyrenees.
