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Estimation of cloud optical depth for low clouds from UV erythemal irradiance


Serrano, D and Marin, MJ and Utrillas, MP and Martinez-Lozano, JA and Nunez, M and Gomez-Amo, JL, Estimation of cloud optical depth for low clouds from UV erythemal irradiance, Radiation processes in the atmosphere and ocean, 6-10 August 2012, Berlin, Germany, pp. 895-898. ISBN 978-0-7354-1155-5 (2013) [Refereed Conference Paper]

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Copyright 2013 AIP Publishing LLC

DOI: doi:10.1063/1.4804915


A methodology to calculate the cloud optical depth for overcast and partly covered skies is proposed. It is based in a combination of measurements of surface diffuse UV erythemal irradiance (UVER), a sky camera for estimation of the cloud cover and radiative transfer simulations by means of SBDART. Data refer to the year 2011 in the city of Valencia (Spain). The results show that in most cases cloud optical depth values are in the interval between 10-20, being the cloud optical depth less than 70 in more than 80% of cases. The monthly cloud optical depth over the year was also studied, as a result, values are found to be higher during the rainy seasons in Valencia (April and September).

Item Details

Item Type:Refereed Conference Paper
Keywords:UV erythemal irradiance, cloud optical depth, cloud cover, multiple scattering model SBDART, sky camera
Research Division:Earth Sciences
Research Group:Atmospheric sciences
Research Field:Atmospheric radiation
Objective Division:Environmental Management
Objective Group:Air quality, atmosphere and weather
Objective Field:Atmospheric processes and dynamics
UTAS Author:Nunez, M (Dr Manuel Nunez)
ID Code:89417
Year Published:2013
Web of Science® Times Cited:1
Deposited By:Geography and Environmental Studies
Deposited On:2014-03-04
Last Modified:2014-06-03

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