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Precipitable water as a predictor of LCL height

Murugavel, P and Malap, N and Balaji, B and Mehajan, RK and Prabha, TV (2017) Precipitable water as a predictor of LCL height. Theoretical and Applied Climatology, 130 (1-2). pp. 467-476.

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Based on the precipitable water observations easily available from in situ and remote sensing sensors, a simple approach to define the lifting condensation level (LCL) is proposed in this study. High-resolution radiosonde and microwave radiometer observations over peninsular Indian region during the Cloud Aerosol Interaction and Precipitation Enhancement Experiment Integrated Ground Observational Campaign (CAIPEEX-IGOC) during the monsoon season of 2011 are used to illustrate the unique relationship. The inferences illustrate a linear relationship between the precipitable water (PW) and the LCL temperature. This relationship is especially valuable because PW is easily available as a derived parameter from various remote sensing and ground-based observations. Thus, it could be used to estimate the LCL height and perhaps also the boundary layer height. LCL height and PW correlations are established from historical radiosonde data (1984–2012). This finding could be used to illustrate the boundary layer-cloud interactions during the monsoon and is important for parameterization of boundary layer clouds in numerical models. The relationships are illustrated to be robust and seem promising to get reasonable estimates of the LCL height over other locations as well using satellite observations of PW.

Item Type: Article
Additional Information: Copyright of this article belongs to Springer International Publishing
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 15 Dec 2017 10:44
Last Modified: 15 Dec 2017 10:44

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