Coordinates:
45.74220° N,
7.35700° E
Elevation: 560.0 m
Site Description
The instrument is installed on the roof of the building of ARPA (Environmental Protection Agency) Valle d'Aosta. The location is in a semi-rural context, just out-of-town. The site is in a large Alpine valley floor with a wide field of view (up to 70° zenith angle, and more in the east-west direction).Main aerosol sources are:- urban pollution from the Aosta town, about 3 km west of the observatory, mostly car traffic and domestic heating (winter)- minor emissions from local industrial sources: a steel mill is located in the town- coarse particles from resuspension by wind/traffic, road salting (winter) and occasional Saharan dust events- secondary aerosol particles (ammonium nitrate and sulfate) regularly transported from the Po basin (about 100 km far from the observatory) by thermal winds. This occurs about 50% of the days in a year on averageSurface: soil, grass, buildings, snow (on mountain slopes, winter).Other co-located instruments: POM-02 sun/sky radiometer (Skynet), CHM-15k and CL61 lidar-ceilometers (Alicenet), Bentham spectroradiometer, MkIV Brewer (EUBREWNET), broadband UV radiometers, pyranometer, pyrgeometer, AvaSpec array spectrometer in global and direct configuration, cloudcam
Dr. Africa Barreto (Izana Atmospheric Research Center) Meteorological State Agency of Spain (AEMET) C/ La Marina, 20, Planta 6 38071 Santa Cruz de Tenerife SPAIN Tel: +34 922151718 Fax: +34 922574475 Email: abarretov@aemet.es ORCID iD: https://orcid.org/0000-0001-5806-585X