Horizontal visibility across Switzerland between 1980 and 2018

• Research unit: FOEN
• Project number: ExSt.2020.1102

Key words (German)

Luft, Studien

Key words (English)

Air, Studies

Key words (French)

Air, Études

Key words (Italian)

Aria, Studi

Short description (English)

Visibility observations from 11 sites across Switzerland between 1980 and 2018 were analysed alongside surface meteorological and air quality data. The results indicated that mean visibility is significantly increasing across most of Switzerland at rates between 64 and 440 meters per year. Additionally, the occurrence of “low visibility days” are decreasing significantly, while extremely clear conditions are significantly increasing in most locations.

Related documents

• Horizontal visibility across Switzerland between 1980 and 2018 [PDF] 2'172 kB

Contractor (English)

Empa, Dübendorf

Charged budget (English)

BAFU

Legal basis (English)

Art. 57 Abs. 1 RVOG | Art. 57 al. 1 LOGA. | Art. 57 cpv. 1 LOGA

Copyright (English)

Copyright, Bundesbehörden der Schweizerischen Eidgenossenschaft | Droits d'auteur: autorités de la Confédération suisse | Diritti d'autore: autorità della Confederazione Svizzera | Dretgs d'autur: autoritads da la Confederaziun svizra | Copyright, Swiss federal authorities

Information (English)

BAFU, Abteilung Luftreinhaltung und Chemikalien, 3003 Bern