华北地区三维云结构特征遥感和三维云场构建方法研究

项目名称： 华北地区三维云结构特征遥感和三维云场构建方法研究

项目编号： No.41275040

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 霍娟

作者单位： 中国科学院大气物理研究所

项目金额： 80万元

中文摘要： 云的分布是复杂的，无论是在水平方向还是垂直方向都是非均匀的，云的三维非均匀问题是研究云与辐射相互作用及其参数化必需考虑的前沿科学问题。本申请拟运用卫星CloudSat 2006年9月至2011年8月近5年的云产品数据，统计华北地区6类典型云场三维垂直结构特征（高云、高积云、高层云、层积云、积云和深对流云）；运用申请人所在实验室已具备的多个地基云探测设备，联合开展天、地基云探测实验获取更详细的云场结构（垂直与水平）特征，并以此为基础，借助辐射传输数值模拟及插值手段研究构建三维逼近真实云场方法。通过开展工作，将进一步了解华北地区典型云场的结构特征和时空分布特征，为气候模式研究、云与辐射相关关系等研究提供数据基础；在华北（北京）所建立的典型三维非均匀云场构建方法与技术，也可于以后在更大规模上推广到全国代表性地点以实现更为先进与符合实际的云场结构模式。

中文关键词： 云；三维；华北；微物理结构；雷达

英文摘要： Distribution of cloud is complicated and non-uniform, both in the horizontal and vertical structure. The non-uniform property of cloud is an important and necessary aspect need to be resolved for the researches about interaction between cloud and radiation as well as parameterization in the global climate model.This application intends to analyze the vertical structure properties of six typical non-precipitation cloud types (high-level cloud, As, Ac, Sc, Cu and deep convective cloud) using the CloudSat cloud products from SEP 2006 to AUG 2011 over North China.Ground-based cloud detection (such as radar, all-sky imager) can observe horizontal features of cloud in detail. Using the radiative transfer model and interpolating method, this application will study a method to create 3D cloud fields using ground-based and space-based cloud data through performing quasi-synchronous observation. Works of this application help to further understand the structure features and spatial-temporal distribution of cloud over North China. It will support more cloud information for global climate model research as well as cloud and radiation research. The method and technology of creating 3D non-homogeneous cloud fields over North China (Beijing) can later be extended to other representative sites which can achieve more advanced an

英文关键词： cloud；three dimension；North China；micro physical structure；radar