Spatially Inhomogeneous Cirrus: Influence on Atmospheric Radiation

非均匀卷云场的辐射效应将通过机载测量（辐射和微物理特性）、三维（3D）辐射传输模型和动态云分辨卷云模型的组合来研究。一架仪器飞机（里尔-喷气机）将在野外活动中对卷云上方的光谱辐射进行采样。从这些数据中，将检索卷云的微物理特性，并与安装在Lear-Jet下方的飞机拖曳传感器梭收集的同时现场测量结果进行比较。在近配条件下，将用成像数字CCD相机观察到采样的卷云场的空间不均匀性。同时，一个云分辨模型将模拟微物理卷云场。结合原位测量和检索的微物理卷云场以及模拟的微物理卷云场将被用作三维辐射传输模型的输入，以研究空间非均匀卷云的辐射效应。

The radiative effects of inhomogeneous cirrus fields will be studied by a combination of airborne measurements (radiation and microphysical properties), a three-dimensional (3D) radiative transfer model and a dynamic cloud-resolving cirrus model. An instrumented aircraft (Lear-Jet) will sample spectral radiation above cirrus within a field campaign. From these data the microphysical cirrus properties will be retrieved and compared to simultaneous in situ measurements collected with an aircraft-towed sensor shuttle which is mounted below the Lear-Jet. In close collocation the spatial inhomogeneities of the sampled cirrus fields will be observed by an imaging digital CCD camera. In parallel, a cloud-resolving model will simulate microphysical cirrus fields. The combined in situ measured and retrieved microphysical cirrus fields as well as the simulated microphysical cirrus fields will be used as input to a 3D radiative transfer model to investigate the radiative effects of spatially inhomogeneous cirrus.