| SHAO Hao,LI Yan,LI Li. 2014. Priori knowledge based a bathymetry assessment method using the sun glitter imagery：a case study of sand waves on the Taiwan Banks. Acta Oceanologica Sinica, 33(1):120－126 |
| Priori knowledge based a bathymetry assessment method using the sun glitter imagery：a case study of sand waves on the Taiwan Banks |
| Priori knowledge based a bathymetry assessment method using the sun glitter imagery：a case study of sand waves on the Taiwan Banks |
| Received:October 30, 2010 Revised:March 18, 2013 |
| DOI：10.1007/s13131-014-0375-z |
| Key words:sun glitter submarine topography sand wave Taiwan Banks |
| 中文关键词: sun glitter submarine topography sand wave Taiwan Banks |
| 基金项目:The National Natural Science Foundation of China under contract Nos 40476023 and 40876031. |
| Author Name | Affiliation | E-mail | | SHAO Hao | State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
Troops 91039, the Chinese People's Liberation Army, Beijing 102401, China | shaohao@xmu.edu.cn | | LI Yan | Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China | | | LI Li |
1 State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
2 Troops 91039, the Chinese People's Liberation Army, Beijing 102401, China
3 Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
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| Abstract: |
| High resolution optical satellite imageries containing the sun glitter, similar to synthetic aperture radar (SAR) imageries, are useful in identifying and mapping of bottom topography in shallow waters. The errors in the previous studies are corrected, and a method for mapping submarine bottom topography is developed using the sun glitter satellite imagery. The method is established on the basis of empirical description of a sand wave using an equation with two unknowns named r and k. In order to determine r and k, a "trial and error" approach is introduced and testified by a case study on the Taiwan Banks using an ASTER imagery. The results show that the inversed water depths match wellwith the sounding water depths. The agreement between the inversed results and the in situmeasurements is about 78% by comparing 371 points. Moreover, this method has the advantage in keeping the original appearance of a sand wave, especially in positions around the sand wave crest. The fine agreement indicates that the imaging model is flexible and the approach developed is feasible. |
| 中文摘要: |
| High resolution optical satellite imageries containing the sun glitter, similar to synthetic aperture radar (SAR) imageries, are useful in identifying and mapping of bottom topography in shallow waters. The errors in the previous studies are corrected, and a method for mapping submarine bottom topography is developed using the sun glitter satellite imagery. The method is established on the basis of empirical description of a sand wave using an equation with two unknowns named r and k. In order to determine r and k, a "trial and error" approach is introduced and testified by a case study on the Taiwan Banks using an ASTER imagery. The results show that the inversed water depths match wellwith the sounding water depths. The agreement between the inversed results and the in situmeasurements is about 78% by comparing 371 points. Moreover, this method has the advantage in keeping the original appearance of a sand wave, especially in positions around the sand wave crest. The fine agreement indicates that the imaging model is flexible and the approach developed is feasible. |
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