| YANG Jingsong,HUANG Weigen,XIAO Qingmei,ZHOU Chenghu,HSU Mingkuang. 2005. Oceanic pycnocline depth retrieval from SAR imagery in the existence of solitary internal waves. Acta Oceanologica Sinica, (5):46－49 |
| Oceanic pycnocline depth retrieval from SAR imagery in the existence of solitary internal waves |
| Oceanic pycnocline depth retrieval from SAR imagery in the existence of solitary internal waves |
| Received:April 19, 2005 Revised:July 05, 2005 |
| DOI： |
| Key words:SAR pycnocline depth solitary internal waves |
| 中文关键词: SAR pycnocline depth solitary internal waves |
| 基金项目: |
| Author Name | Affiliation | E-mail | | YANG Jingsong | Key Laboratory of Ocean Dynamic Processes and Satellite Oceanography, State Oceanic Administration, Hangzhou 310012, China
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | isyang@mail.hz.zi.cn | | HUANG Weigen | Key Laboratory of Ocean Dynamic Processes and Satellite Oceanography, State Oceanic Administration, Hangzhou 310012, China
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | XIAO Qingmei | Key Laboratory of Ocean Dynamic Processes and Satellite Oceanography, State Oceanic Administration, Hangzhou 310012, China
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | ZHOU Chenghu | State Laboratory of Resources and Environment Information System, Institute of Geographical Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China | | | HSU Mingkuang | Department of Oceanography, National Taiwan Ocean University, Taibei, China | |
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| Abstract: |
| Oceanic pycnocline depth is usually inferred from in situ measurements.It is attempted to estimate the depth remotely.As solitary internal waves occur on oceanic pycnocline and propagate along it, it is possible to retrieve the depth indirectly in virtue of the solitary internal waves.A numerical model is presented for retrieving the pycnocline depth from synthetic aperture radar (SAR) images where the solitary internal waves are visible and when ocean waters are fully stratified.This numerical model is constructed by combining the solitary internal wave model and a two-layer ocean model.It is also assumed that the observed groups of solitary internal wave packets on the SAR imagery are generated by local semidiurnal tides.A case study in the East China Sea shows a good agreement with in situ CTD (conductivity-temperature-depth) data. |
| 中文摘要: |
| Oceanic pycnocline depth is usually inferred from in situ measurements.It is attempted to estimate the depth remotely.As solitary internal waves occur on oceanic pycnocline and propagate along it, it is possible to retrieve the depth indirectly in virtue of the solitary internal waves.A numerical model is presented for retrieving the pycnocline depth from synthetic aperture radar (SAR) images where the solitary internal waves are visible and when ocean waters are fully stratified.This numerical model is constructed by combining the solitary internal wave model and a two-layer ocean model.It is also assumed that the observed groups of solitary internal wave packets on the SAR imagery are generated by local semidiurnal tides.A case study in the East China Sea shows a good agreement with in situ CTD (conductivity-temperature-depth) data. |
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