| Determination of cloud-top height from stereoscopic observation |
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| 作者姓名： | WANG Hongqing L |
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| 作者单位： | Department of Atmospheric Science/School of Physics, Peking University, Beijing 100871, China,Department of Atmospheric Science/School of Physics, Peking University, Beijing 100871, China,Department of Atmospheric Science/School of Physics, Peking University, Beijing 100871, China,Department of Atmospheric Science/School of Physics, Peking University, Beijing 100871, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Grant No. 49405060) |
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| 摘 要： | A new and accurate method is presented based on the cloud movement (height and position), the spherical and plane triangular relationships of the spacecraft, the center of the earth, the projected-cloud and the true-cloud for determination of cloud-top height and position. Synthetic stereo images that have spatial resolution of 1.25 km from a single satellite are used to test this method. It is demonstrated that the cloud-top structure can be determined from the stereoscopic measurements of geo-synchronous satellite with vertical accuracy of approximately 500 m. The vertical accuracy can be better with lower orbiters.
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| 关 键 词： | stereoscopic observation cloud-top height spherical triangle |
Determination of cloud-top height from stereoscopic observation |
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| WANG Hongqing,L.Determination of cloud-top height from stereoscopic observation[J].Progress in Natural Science,2002,12(9):689-694. |
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| Authors: | WANG Hongqing U Shenghui ZHANG Yan TAO Zuyu |
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| Institution: | Department of Atmospheric Science/School of Physics, Peking University, Beijing 100871, China |
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| Abstract: | A new and accurate method is presented based on the cloud movement (height and position), the spherical and plane triangular relationships of the spacecraft, the center of the earth, the projected-cloud and the true-cloud for determination of cloud-top height and position. Synthetic stereo images that have spatial resolution of 1.25 km from a single satellite are used to test this method. It is demonstrated that the cloud-top structure can be determined from the stereoscopic measurements of geo-synchronous satellite with vertical accuracy of approximately 500 m. The vertical accuracy can be better with lower orbiters. |
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| Keywords: | stereoscopic observation cloud-top height spherical triangle |
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