title: [From sun to earth].
abstract: Sun emits a vast array of electromagnetic radiations. After a long but fast journey, the spectrum of visible and ultraviolet light, and infrared radiations reaches the furthermost boundaries of the Earth. Only a fraction of them reaches the biosphere. Photogeoclimatology primarily depends on this energy and is modulated by the latitude, soil relief, seasons and nycthemeral cycle.
authors.affiliation: CHU du Sart Tilman, Service de Dermatopathologie, Liège.
authors.forename: E
authors.initials: E
authors.lastname: Uhoda
authors.forename: G E
authors.initials: GE
authors.lastname: Piérard
mesh_terms: D002980:Climate; D006801:Humans; D010126:Ozone; D018462:Photobiology; D012878:Skin Neoplasms / Q000209:etiology; D013472:Sunlight / Q000009:adverse effects*
chemical_list: D010126:Ozone