I am wondering if there is long term (10 year, 7 year, 20 year) periodic patterns Similar to short term seasonal and periodic patterns in weather such as sea/land wind, monsoon, ENSO, ocean sea-saw, etc.
Specifically related to drought
I am trying to predict the rainfall using the weather data, I was wondering if different patterns that happen in weather changes through time are periodic? Is there a periodic pattern in the pattern of weather changes? Is there a general periodic pattern that may happen every 10 years or more? If so, how long is the window of this period? Or a similar question can be: the weather measurements of how far ago can affect today's weather measurements? Does the weather forget about the weather events of long time ago? If so, how long is that window?
If there is a journal paper or material that I can study please tell me. Thanks
I am a data scientist trying to predict rainfall using weather data. So I do not have earth science knowledge. So after I read @Fred's comment, I understood that what I have in mind is called 'Cycle' in earth sciences.
edited question: What is the length of the cycles for rainfall patterns? (If I want to predict rainfall, how long is the length for cycles that affect rainfall? Or how many years of data I should use?! )