Abstract
In this paper, comparison and analysis of two cloud models are performed for prediction of cloud liquid water content and cloud attenuation in tropical region. To this aim, one-year (2012) radiosonde data, collected in the tropical country of Singapore, are processed to derive the 0°C/-20°C isothermal heights, calculate cloud liquid water content and then estimate cloud attenuation. Comparing with ITU-R P.840-6 model, our results indicate that the well-known Salonen Uppala (SU) model intends to underestimate the cloud liquid water content and corresponding cloud attenuation in tropical region. In addition, a newly proposed Water Vapor Pressure (WVP) cloud detection model provides relatively large cloud attenuation and shows its feasibility to predict cloud attenuation for tropical region.
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