| 被动微波辐射特征地形效应模拟与实验 |
| |
| 引用本文： | 李欣欣,张立新,蒋玲梅,赵少杰,赵天杰.被动微波辐射特征地形效应模拟与实验[J].遥感学报,2011,15(1):100-110. |
| |
| 作者姓名： | 李欣欣 张立新 蒋玲梅 赵少杰 赵天杰 |
| |
| 作者单位： | 遥感科学国家重点实验室,北京师范大学,北京,100875;北京师范大学地理学与遥感科学学院,北京,100875 |
| |
| 基金项目： | 国家重点基础研究发展计划(973 计划)(编号: 2007CB714403)和欧盟FP7 计划“青藏高原土壤水分产品反演”(编号: 212921) |
| |
| 摘 要： | 基于地形对被动微波辐射的影响机理研究, 利用AIEM 模型模拟微波辐射的地形效应, 建立实验地貌微
缩景观, 由车载微波辐射计进行观测, 探索影响被动微波辐射特征的地形因子。地基实验表明, 在低频波段本地入
射角对山地倾斜表面的微波辐射有10 K—15 K 的影响, 小于10GHz 的观测频率可以消除地形高度对微波辐射的影响。
同时, 实验验证微波极化受地表形态属性——山体坡向和山体形状的影响显著, 地形坡度对极化信息影响不明显。
|
| 关 键 词： | 地形效应 被动微波辐射 地形实验 AIEM |
| 收稿时间： | 2010/3/12 0:00:00 |
| 修稿时间： | 2010/7/17 0:00:00 |
Simulation and measurement of relief effects on
passive microwave radiation |
| |
| LI Xinxin,ZHANG Lixin,JIANG Lingmei,ZHAO Shaojie and ZHAO Tianjie.Simulation and measurement of relief effects on
passive microwave radiation[J].Journal of Remote Sensing,2011,15(1):100-110. |
| |
| Authors: | LI Xinxin ZHANG Lixin JIANG Lingmei ZHAO Shaojie and ZHAO Tianjie |
| |
| Institution: | State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese
Academy of Sciences and Beijing Normal University, Beijing 100875, China;School of Geography and Remote Sensing Science, Beijing N;State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese
Academy of Sciences and Beijing Normal University, Beijing 100876, China;School of Geography and Remote Sensing Science, Beijing N;State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese
Academy of Sciences and Beijing Normal University, Beijing 100877, China;School of Geography and Remote Sensing Science, Beijing N;State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese
Academy of Sciences and Beijing Normal University, Beijing 100878, China;School of Geography and Remote Sensing Science, Beijing N;State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese
Academy of Sciences and Beijing Normal University, Beijing 100879, China;School of Geography and Remote Sensing Science, Beijing N |
| |
| Abstract: | Based on the theory of the relief effects on passive microwave radiation, we think that it is necessary to do the
experiments in the field by observing the different topographic landscapes we design and compare the data we observe with the
simulations of relief effects modeled by AIEM. The result shows there are 10-15 K bias of brightness temperatures affected by
the tilted angles between flat terrain and mountainous terrain. When the frequencies are less than 10 GHZ, the relief effects of
terrain elevation becomes weakening. Therefore, we certified that microwave polarization paths and directions have obviously
changed due to the surface geometrical property, such as shape and the orientation of hills. |
| |
| Keywords: | relief effects passive microwave radiation experiment AIEM |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《遥感学报》浏览原始摘要信息 |
| 点击此处可从《遥感学报》下载免费的PDF全文 |
|
