| Zheng Quan'an,Zhang Dong,Pan Jiayi. 1993. A study on remote sensing models of sea ice thickness by microwave radiometry. Acta Oceanologica Sinica, (2):197－206 |
| A study on remote sensing models of sea ice thickness by microwave radiometry |
| A study on remote sensing models of sea ice thickness by microwave radiometry |
| Received:June 22, 1992 Revised:December 20, 1992 |
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| 基金项目:The project supported by the National Natural Science Foundation of China. |
| Author Name | Affiliation | | Zheng Quan'an | The First Institute of Oceanography, State Oceanic Administration, P. O. Box 98, Qingdao 266003, China | | Zhang Dong | The First Institute of Oceanography, State Oceanic Administration, P. O. Box 98, Qingdao 266003, China | | Pan Jiayi | 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). |
| 中文摘要: |
| 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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