Reduced liquid water content for cloud attenuation prediction: the impact of temperature. Issue 20 (1st September 2013)

• Record Type: Journal Article
• Authors: Luini, L.; Riva, C.; Capsoni, C.
• Is Part Of: Electronics letters. Volume 49:Issue 20(2013)
• Page Start: 1259
• Page End: 1261
• Publication Date: 2013-09-01
• Subjects: atmospheric humidity -- atmospheric temperature -- clouds -- weather forecasting; liquid water content -- cloud attenuation prediction -- fixed temperature -- radiosonde observations -- prediction error quantification -- reduction temperature -- European sites -- frequency 20 GHz to 100 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.2447
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : The prediction of cloud attenuation relying on the concept of reducing liquid water content to a fixed temperature ( w R ) is investigated. Based on an extensive dataset of radiosonde observations collected in Europe, the focus is on the quantification of the prediction error due to the approximation introduced with w R . The obtained cloud attenuation results indicate that the approximation error δ is markedly sensitive to the reduction temperature T R and that, specifically, T R = − 5°C turns out to minimise δ in European sites, whatever the frequency of interest in the 20–100 GHz range.