A numerical model called PICASSO [Production d'Ions Corona Au Sol Sous Orage (French) and Production of Corona Ions at the Ground Beneath Thundercloud (English)]. previously designed. is used to describe the evolution of the principal electrical parameters below a thunderstorm. taking into account the major part played by corona ions. https://leoners.shop/product-category/2-pc-living-room-package-w-chair-and-a-half/