Gamma dist to ND

[pertetotale]

thanks for the nice dist to ND ipynb

I'll try to use it on the water spring data of Lupa in Umbria, Italy. And other springs and aquifer data.

in the last pages of this study you can find it can have real life use - sorry it is written in italian, but you can get an idea https://www.researchgate.net/publication/326294538_Linee_Guida_sugli_Indicatori_di_Siccita_e_Scarsita_Idrica_da_utilizzare_nelle_attivita_degli_Osservatori_Permanenti_per_gli_Utilizzi_Idrici_-_Stato_Attuale_e_Prospettive_Future_in_Italian

In essence: the drought in western/south Europe is worse than I imagined.

for more info see file: Osservatorio_15_12_2020.pdf at https://www.autoritadistrettoac.it/le-azioni-contratti-di-fiume/osservatorio-permanente