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Article
Surface albedo and spring snow melt variations at Ny-Ålesund, Svalbard
The monitoring of surface albedo using radiometric measurements is a simple but effective way to study variations in snow cover and melt timing in the high northern latitudes, where there is a clear indication...
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Article
The 2020 Arctic ozone depletion and signs of its effect on the ozone column at lower latitudes
The present study discusses the effect of the ozone depletion that occurred over the Arctic in 2020 on the ozone column in central and southern Europe by analysing a data set obtained from ground-based measure...
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Chapter
Arctic Aerosols
Aerosols play an important role in the climatic system through their direct and indirect effects on radiation. Beside this, they are also part of the complex chain of chemical reactions taking place in the atm...
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Chapter
Radiation in the Arctic Atmosphere and Atmosphere – Cryosphere Feedbacks
Arctic surface temperature has been increasing at a rate 2–3 times that of the global average in the last half century. Enhanced warming of the Arctic, or Arctic Amplification, is a climatic response to extern...
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Chapter
Remote Sensing of Arctic Atmospheric Aerosols
In this chapter remote sensing techniques as applied to studies of Arctic aerosol are surveyed. They include the analysis of ground and shipborne observations of atmospheric aerosol using sunphotometers and al...
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Article
Multi-seasonal ultrafine aerosol particle number concentration measurements at the Gruvebadet observatory, Ny-Ålesund, Svalbard Islands
The object of this study was to investigate the different modal behavior of ultrafine aerosol particles collected at the Gruvebadet observatory located in Ny-Ålesund (Svalbard Islands, 78°55′N, 11°56′E). Aeros...
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Article
Variability features associated with ozone column and surface UV irradiance observed over Svalbard from 2008 to 2014
The present report shortly summarises the conclusions about the ozone column and solar UV irradiance variability that were achieved through the analysis of the data obtained from the narrow-band filter radiome...
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Article
Sulfate source apportionment in the Ny-Ålesund (Svalbard Islands) Arctic aerosol
Daily PM10 aerosol samples were collected at the Gruvebadet observatory, Ny-Ålesund (Svalbard Islands), during the spring-summer 2014 Italian Arctic Campaign. A total of 136 samples were analysed for ion (inor...
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Chapter
Diurnally averaged direct aerosol-induced radiative forcing from cloud-free sky field measurements performed during seven regional experiments
Aerosol particles suspended in the atmosphere may originate from either natural or anthropic sources, or through mixed processes involving their variable combinations. Among the primary natural emissions, the ...
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Article
Variations in total ozone column and biologically effective solar UV exposure doses in Bologna, Italy during the period 2005–2010
Variations in total ozone column and sun exposures able to cause erythema and damage the DNA molecules were observed by the narrow-band filter radiometer UV-RAD in Bologna, Italy from 2005 to 2010. The ozone c...
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Chapter
Dependence of direct aerosol radiative forcing on the optical properties of atmospheric aerosol and underlying surface
Airborne aerosol is a suspension of solid particulate matter and/or liquid particles in air, which are often observed as dust, haze and smoke. They present an overall number concentration usually varying betwe...
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Article
Preliminary assessment of the risks associated with solar ultraviolet-A exposure
An approach is proposed to assess the periods of human skin exposure to solar ultraviolet-A (UV-A, 315–400 nm) irradiance in natural conditions that are able to yield doses found to trigger carcinogenesis in l...
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Chapter
GPS and Radiosonde Derived Precipitable Water Vapour Content and its Relationship with 5 Years of Long-Wave Radiation Measurements at “Mario Zucchelli” Station, Terra Nova Bay, Antarctica
The Italian “Mario Zucchelli” Station (-74° 41′ 55′′.6997 N, 164° 06′ 10′′. 5887 E), situated at Terra Nova Bay, Northern Victoria Land, is equipped with a permanent Global Positioning System receiver (TNB1), con...
