【作者】 濮江平； 单陈华； 郑国光； 毛节泰； 姚展予； 贺杰； 冯圆；

【Author】 Pu Jiangping(1,2) Shan Chenhua(2) Zheng Guoguang(3) Mao Jietai(4) Yao Zhanyu(5) He Jie(2) Feng Yuan(2) (1) NIU, Nanjing, 210014 (2) PLAUST, Nanjing, 211101 (3) CMA, Beijing, 100081 (4) PKU, Beijing, 100089 (5) CAMS, Beijing, 100081

【机构】 南京信息工程大学； 解放军理工大学气象学院； 中国气象局； 北京大学； 中国气象科学研究院；

【摘要】 本文采用离散坐标平面平行辐射传输模式,根据飞机观测到的云宏观微观物理参数分布,模拟计算特定地区云顶向上的辐射谱分布,并且与静止地球卫星观测到的对应像素点上红外三个通道辐射量进行了对比。结果表明,对于层状云在特定时间地点(太阳高度角和卫星观测角)、地面反照率、云底高度、云体的厚度、云的光学厚度和云滴有效半径和大气状况垂直分布确定的情况下,辐射传输模式模拟计算的向上单色辐射通量密度与卫星观测到的红外通道辐射通量密度基本一致。采用此方法有可能根据观测到的卫星红外辐射值分级确定特定层状云的微物理参数。辐射模式的波长分辨率比较高,计算结果起伏较大,但变化趋势与卫星观测数据基本一致。通过分析对比模式模拟的结果与GOES卫星相关红外波段接收的辐射间的对应关系,我们认为,对于较厚的层状云,模拟计算的结果与GOES卫星遥感的结果存在很好的一致性。结合科技部攻关课题在河南外场2004年春季人工增雨试验所获得的飞机云物理实际探测资料进行对比,发现对于很薄的层状云模拟结果受到地表反照率影响很大,而对较厚的层状云模拟效果较好。该方法在人工增雨区域的选择、作业效果的表现等方面有较好的应用前景。更多还原

【Abstract】 It has long been recognized that clouds have a large influence on the earth’s radiation budget, thermodynamical processes and hydrodynamic process. Clouds play important roles in obtaining an accurate knowledge of clouds and radiation and their interactions. The quantitative study of the relationship among radiative fluxes, cloud thermodynamical and physical properties and can provide insight into the problem of how clouds interact with the radiation. Quantitative cloud parameter is a indispensable content in cloud precipitation physics and quantitative knowledge of relation among the three character. The paper put forward a kind of new way in retrieval cloud depth and effective radius abandoning general iterative retrieval scheme loaded down with trivial details. Through of SBDART-A practical tool for plane-parallel radiative transfer in the earth’s atmosphere. In model input parameters such as atmospheric constituents, cloud height, surface properties and droplet effective radius, we could simulate the Irradiance in infrared spectral band the same of GOES9 satellite remote sensing and find simulation and remote sensing consistently .through setting up loop up tables among cloud parameters , satellite remote sensing irradiance and simulation irradiance ,we will derive cloud parameters from tables according to GOES9 satellite data and in situ measurement. Conclusions: Solar zenith angle, surface albedo, cloud optical depth, cloud liquid water path, effective partical radius play important role in simulation satellite remote sensing irradiance in sensitivity examination. Effect of Stratiform cloud’ stimulation is good by analyzing the aircraft measurement data in HENAN springtime Field experiment in 2004. The method of simulation cloud parameter by SBDART model has some potential to developing and using to stratiform cloud stimulation.更多还原