胡斯勒图博士——遥感科学国家重点实验室2014年系列学术讲座之二十二
被阅读 7149 次
2014-09-11

报告题目: 基于不同形状冰晶的电磁波散射特征和ADEOS/POLDER多角度遥感数据的卷云粒子有效形状的研究

报告人:胡斯勒图博士(日本东海大学)

时间:2014年9月12日10:00

地点:中科院遥感地球所(奥运园区)B202遥感科学国家重点实验室学术报告厅

报告人简介:胡斯勒图博士,日本东海大学博士后研究员,日本宇宙开发研究机构JAXA委托研究员。先后于内蒙古师范大学获得学士、硕士学位,日本千叶大学获得博士学位。2010年至今在日本东海大学从事博士后研究,任日本宇宙航空研究开发机构(JAXA)GCOM-C1 遥感卫星计划的委托研究员。2011年3月至2012年4月任日本千叶大学环境遥感所合作研究员。主要从事冰云粒子的光散射特征的计算方法,及遥感反演技术,辐射传输理论研究,云微物理过程及云和气溶胶相互作用研究,以及卫星传感器的定标检验,波段的最佳化设计,传感器噪音的评价。负责撰写日本宇宙开发研究机构 JAXA 将要发射的气候观测卫星 GCOMC 的云产品算法技术档案(ATBD)。目前发表 SCI 和 EI 检索论文共22 篇,国际会议论文 57 篇。其中,出版的 2 篇 SCI 论文被美国大气海洋局(NOAA)和美国宇航局(NASA)的成果中收录,并在主页上公开。

ABSTRACT: The single scattering properties of ice crystals are fundamental in the radiative transfer simulations of ice clouds, in assessing the radiative forcing of ice clouds, and in retrieval of the microphysical and optical properties of ice clouds from satellite sensors. According to the in-situ observations, the particles of ice clouds are formed from the complex non-spherical ice crystals. However, effective ice cloud habit is required to exactly calculate the microphysical and optical properties of ice clouds from satellite remote sensing data.
 
The aim of this study is to determine the effective ice crystal habit for ice cloud remote sensing using ADEOS/POLDER measurements. First we developed the ice crystal scattering properties database with varied habits. Five ice crystal habits (Plate, Colum, Voronoi, Droxtal, and Bullet rosettes) were selected for developing the scattering properties database, based on the ice crystal habit used in MODIS collection 5 product and aircraft observation samples. The single scattering properties were calculated by a combination of three scattering computational models: FDTD, Geometric-Optics-Integral-Equation (GOIE) and GOM. For determination the ice crystal habits used in the ice cloud retrievals, we then performed using a Spherical Albedo Difference (SAD) analysis. It is proved that plate and Voronoi habits model with moderate and large particles are efficient for applying in ice cloud remote sensing.