Stereo cloud‐top height retrieval with ASTER and MISR
Stereo cloud‐top height retrieval with ASTER and MISR
复制标题
使用 ASTER 和 MISR 进行立体云顶高度检索
DOI：
10.1080/01431160500380703
复制
发表时间：
2006
影响因子：
3.4
通讯作者：
A. Grün
中科院分区：
文献类型：
--
作者：
G. Seiz;R. Davies;A. Grün
讨论了利用先进星载热发射和反射辐射计（ASTER）和多角度成像光谱辐射计（MISR）进行云顶高度（CTH）的联合多视角摄影测量反演。虽然ASTER主要是为陆地应用而设计的，但MISR和ASTER的协同使用对三维云分析是有价值的。一种新的基于最小二乘匹配（LSM）的云适应匹配算法被用于MISR和ASTER的摄影测量处理。该方法被应用于2002年4月在瑞士Zürich‐Kloten上空的ASTER场景，该场景是按需获取的。这个案例研究，同时ASTER，MISR和Meteosat-6 10分钟快速扫描，详细处理。作为一个匹配验证选项，它表明，偶然的，云的运动误差的MISR An‐Aa和ASTER立体CTH是近似相同的，独立于实际的云的高度和云的运动。因此，可以评估MISR An-Aa匹配与ASTER匹配的准确性，而不受随后风校正造成的伪影的影响。还将结果与操作MISR L2 TC立体声CTH结果进行了比较。通过这些方法中的每一种获得的结果产生一致的CTH值（未经风运动校正）。
The combined multi‐view photogrammetric retrieval of cloud‐top height (CTH) from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Multi‐angle Imaging SpectroRadiometer (MISR) is discussed. Although ASTER was designed mainly for land applications, the synergistic use of MISR and ASTER is shown to be valuable for 3D cloud analysis. A new cloud‐adapted matching algorithm based on least‐squares matching (LSM) was used for the photogrammetric processing of both MISR and ASTER. The methods were applied to an ASTER scene over Zürich‐Kloten, Switzerland, in April 2002, which was acquired on‐demand. This case study, with coincident ASTER, MISR and Meteosat‐6 10‐minute Rapid Scans, is treated in detail. As a matching validation option it is shown that, by chance, the cloud motion error for the MISR An‐Aa and ASTER stereo CTHs is approximately the same, independent of the actual cloud height and cloud motion. It was therefore possible to evaluate the accuracy of the MISR An‐Aa matching versus the ASTER matching, independent of artefacts due to the subsequent wind correction. The results were also compared to the operational MISR L2TC stereo CTH results. The results obtained by each of these methods yield consistent values for CTH (uncorrected for wind motion).