CorsiClimAte - Seasonal and topographic partitioning of vapor transport, cloud and precipitation in Corsica, with special reference to PBL height

将研究科西嘉的降水动力学，以揭示局地微风系统、大尺度环流和地形之间的相互作用。将对影响科西嘉地区的典型降水天气类型进行分类，以解释大尺度和局地尺度（陆地/海洋/山风系统耦合）的影响。将分析局地尺度特征和相互作用，并特别参考行星边界层（PBL）的发展作为受影响地表和自由大气之间的区分代理。沿着一条自西向东的垂直样带，气象参数的测量将提供不同高度和海拔高度的时间高分辨率降水和PBL信息。此外，将根据遥感和地面观测得到的高分辨率空间明确云图和降水图，研究与所定义的天气类型有关的整个科西嘉降水动态的日循环。PBL发展和降水形成的潜在机制以及跨尺度过程将在高分辨率数值模拟中得到反映。利用反轨迹模拟的应用，将研究降水产生的大气蒸汽源和途径，这可能会对科西嘉档案（水和树木年轮）中的d18O测量值进行适当的解释。

Precipitation dynamics in Corsica will be investigated to unveil the interplay between local breeze Systems, large-scale circulation and topography. A classification of typical precipitation weather types affecting the Corsica region will be applied to account for the large- and local-scale (coupled land/sea/mountain breeze systems) influence. The local-scale characteristics and the interplay will be analysed with special reference to the development of the planetary boundary layer (PBL) as a discriminating proxy between the surface affected and the free atmosphere. Along an altitudinal transect from west to east, measurements of meteorological parameters will provide temporal high resolution precipitation and PBL information at different heights and expositions. Further, based on high resolution spatial-explicit cloud and precipitation maps derived from remote-sensing and ground-based observations the diurnal cycle of precipitation dynamics for entire Corsica related to the defined weather types will be examine. The underlying mechanisms as well as the cross-scale processes of PBL development and precipitation formation will be reflected in high resolution numerical modelling simulations. With the application of back-trajectory modelling sources and pathways of atmospheric vapour for the precipitation generation will be investigated, which may enable a proper interpretation of d18O measurements in the Corsican archives (water and tree rings).