Abstract
Cirrus (Ci) clouds are involved in Climate Change concerns since they affect the radiative balance of the atmosphere. Recently, a polarized Micro Pulse Lidar (P-MPL), standard system within NASA/MPLNET has been deployed at the INTA/Atmospheric Observatory ‘El Arenosillo’ (ARN), located in the SW Iberian Peninsula. Hence, the INTA/P-MPL system is used for Ci detection over that station for the first time. Radiative effects of a Ci case observed over ARN are examined, as reference for future long-term Ci observations. Optical and macrophysical properties are retrieved, and used for radiative transfer simulations. Data are compared to the measured surface radiation levels and all-sky images simultaneously performed at the ARN station.
Highlights
System, was recently deployed at the Institute for Aerospace Technology (INTA)/Atmospheric Observatory ‘El Arenosillo’ (ARN), where flight routes frequently cross over this area as well
This polarized Micro Pulse Lidar (P-MPL) has been used for Ci detection over ARN for the first time; a Ci cloud case observed over ARN on 28 October 2016 is presented in this work, as reference for future long-term Ci observations
A layer of Ci clouds was observed over ARN on 28 October 2016
Summary
System, was recently deployed at the INTA/Atmospheric Observatory ‘El Arenosillo’ (ARN), where flight routes frequently cross over this area as well. This P-MPL has been used for Ci detection over ARN for the first time; a Ci cloud case observed over ARN on 28 October 2016 is presented in this work, as reference for future long-term Ci observations. The aim is to compare the retrieved Ci optical and macrophysical properties to the surface radiation levels measured at ARN station. Radiative transfer simulations are performed to study the impact on surface of the Ci clouds. Results can contribute to validation purposes of the ESA’s EarthCARE mission, whose scientific goal is related to the radiation-aerosol-cloud interactions
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