| A study on remote sensing models of sea ice thickness by microwave radiometry |
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| 作者姓名： | Zheng Quan'an Zhang Dong Pan Jiayi |
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| 作者单位： | The First Institute of Oceanography, State Oceanic Administration, P. O. Box 98, Qingdao 266003, China;The First Institute of Oceanography, State Oceanic Administration, P. O. Box 98, Qingdao 266003, China;The First Institute of Oceanography, State Oceanic Administration, P. O. Box 98, Qingdao 266003, China |
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| 基金项目： | The project supported by National Natural Science Fundation of China |
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| 摘 要： | Extrapolating from the propagation theories of electromagnetic waves in a layered medium, a three-layer medium model is deduced in this paper by using microwave radiometric remote sensing technology which is suitable to first-year sea ice condition of the northern part of China seas. Comparison with in situ data indicates that for microwave wavelength of 10 cm, the coherent model gives a quite good fit result for the thickness of sea ice less than 20 cm, and the incoherent model also works well for thickness within 20 to 40 cm. Based on three theoretical models, the inversion soft ware from microwave remote sensing data for calculating the thickness of sea ice can be set up. The relative complex dielectrical constants of different types of sea ice in the Liaodong Gulf calculated by using these theoretical models and measurement data are given in this paper. The extent of their values is (0. 5-4. 0)-j(0. 07~0. 19).
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| 收稿时间： | 1992/6/22 0:00:00 |
| 修稿时间： | 1992/12/20 0:00:00 |
A study on remote sensing models of sea ice thickness by microwave radiometry |
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| Zheng Quan''an,Zhang Dong,Pan Jiayi.A study on remote sensing models of sea ice thickness by microwave radiometry[J].Acta Oceanologica Sinica,1993,12(2):197-206. |
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| Authors: | Zheng Quan'an Zhang Dong and Pan Jiayi |
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| Institution: | The First Institute of Oceanography, State Oceanic Administration, P. O. Box 98, Qingdao 266003, China |
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| Abstract: | Extrapolating from the propagation theories of electromagnetic waves in a layered medium, a three-layer medium model is deduced in this paper by using microwave radiometric remote sensing technology which is suitable to first-year sea ice condition of the northern part of China seas. Comparison with in situ data indicates that for microwave wavelength of 10 cm, the coherent model gives a quite good fit result for the thickness of sea ice less than 20 cm, and the incoherent model also works well for thickness within 20 to 40 cm. Based on three theoretical models, the inversion soft ware from microwave remote sensing data for calculating the thickness of sea ice can be set up. The relative complex dielectrical constants of different types of sea ice in the Liaodong Gulf calculated by using these theoretical models and measurement data are given in this paper. The extent of their values is (0.5-4.0)-j(0.07~0.19). |
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