Tidal Effects on Circulation in and near the East China Sea
We incorporate tidal currents into a previously validated, three-dimensional, subtidal circulation model to assess tidal effects on the circulation in and around the East China Sea. Of particular interest is the tide-enhanced Changjiang plume dispersal and circulation in the southern East China Sea....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2014-01-01
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| Series: | Terrestrial, Atmospheric and Oceanic Sciences |
| Subjects: | |
| Online Access: |
http://tao.cgu.org.tw/media/k2/attachments/v252p233.pdf
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| _version_ | 1811291884162646016 |
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| author | Hung-Jen Lee Shenn-Yu Chao Kon-Kee Liu Shih-Jen Huang Gwo-Ching Gong |
| author_facet | Hung-Jen Lee Shenn-Yu Chao Kon-Kee Liu Shih-Jen Huang Gwo-Ching Gong |
| author_sort | Hung-Jen Lee |
| collection | DOAJ |
| description | We incorporate tidal currents into a previously validated, three-dimensional, subtidal circulation model to assess tidal effects on the circulation in and around the East China Sea. Of particular interest is the tide-enhanced Changjiang plume dispersal and circulation in the southern East China Sea. The modeling results show that without tides, the Changjiang plume in summer presents itself as a stagnant, expansive pool in regions bordering the northern East China Sea and Yellow Sea, too far north and too accumulating relative to observations. The winter plume dispersal pushed by the north-northeast monsoon follows the China coastline southeastward as a coastal current that matches more closely with observations with or without tides. Incorporating the effect of tides brings the model closer to observation, especially in summer. During summer the Taiwan Warm Current shifts to lower latitudes, enhances upwelling off southeast China and induces a southward tidal residual coastal flow off southeast China. Tides also induce the observed seaward detachment of the summer plume. In winter, the prevailing north-northeast monsoon suppresses the Taiwan Warm Current to the minimum. However, if the winter monsoon is weakened for a few weeks, the Taiwan Warm Current reappears and these three mechanisms begin to operate as in summer. CTD surveys and satellite observations south of the Changjiang River estuary contribute to a better understanding of the tidal effects on regional ocean currents. |
| first_indexed | 2024-04-13T04:37:02Z |
| format | Article |
| id | doaj.art-a2e6a57023c546b8893a53ed246328f6 |
| institution | Directory Open Access Journal |
| issn | 1017-0839 2311-7680 |
| language | English |
| last_indexed | 2024-04-13T04:37:02Z |
| publishDate | 2014-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Terrestrial, Atmospheric and Oceanic Sciences |
| spelling | doaj.art-a2e6a57023c546b8893a53ed246328f62022-12-22T03:02:08ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802014-01-0125223310.3319/TAO.2013.10.08.01(Oc)1209Tidal Effects on Circulation in and near the East China SeaHung-Jen LeeShenn-Yu ChaoKon-Kee LiuShih-Jen HuangGwo-Ching GongWe incorporate tidal currents into a previously validated, three-dimensional, subtidal circulation model to assess tidal effects on the circulation in and around the East China Sea. Of particular interest is the tide-enhanced Changjiang plume dispersal and circulation in the southern East China Sea. The modeling results show that without tides, the Changjiang plume in summer presents itself as a stagnant, expansive pool in regions bordering the northern East China Sea and Yellow Sea, too far north and too accumulating relative to observations. The winter plume dispersal pushed by the north-northeast monsoon follows the China coastline southeastward as a coastal current that matches more closely with observations with or without tides. Incorporating the effect of tides brings the model closer to observation, especially in summer. During summer the Taiwan Warm Current shifts to lower latitudes, enhances upwelling off southeast China and induces a southward tidal residual coastal flow off southeast China. Tides also induce the observed seaward detachment of the summer plume. In winter, the prevailing north-northeast monsoon suppresses the Taiwan Warm Current to the minimum. However, if the winter monsoon is weakened for a few weeks, the Taiwan Warm Current reappears and these three mechanisms begin to operate as in summer. CTD surveys and satellite observations south of the Changjiang River estuary contribute to a better understanding of the tidal effects on regional ocean currents. http://tao.cgu.org.tw/media/k2/attachments/v252p233.pdf Changjiang plumeTaiwan Warm CurrentTidal residual coastal flow |
| spellingShingle | Hung-Jen Lee Shenn-Yu Chao Kon-Kee Liu Shih-Jen Huang Gwo-Ching Gong Tidal Effects on Circulation in and near the East China Sea Terrestrial, Atmospheric and Oceanic Sciences Changjiang plume Taiwan Warm Current Tidal residual coastal flow |
| title | Tidal Effects on Circulation in and near the East China Sea |
| title_full | Tidal Effects on Circulation in and near the East China Sea |
| title_fullStr | Tidal Effects on Circulation in and near the East China Sea |
| title_full_unstemmed | Tidal Effects on Circulation in and near the East China Sea |
| title_short | Tidal Effects on Circulation in and near the East China Sea |
| title_sort | tidal effects on circulation in and near the east china sea |
| topic | Changjiang plume Taiwan Warm Current Tidal residual coastal flow |
| url |
http://tao.cgu.org.tw/media/k2/attachments/v252p233.pdf
|
| work_keys_str_mv | AT hungjenlee tidaleffectsoncirculationinandneartheeastchinasea AT shennyuchao tidaleffectsoncirculationinandneartheeastchinasea AT konkeeliu tidaleffectsoncirculationinandneartheeastchinasea AT shihjenhuang tidaleffectsoncirculationinandneartheeastchinasea AT gwochinggong tidaleffectsoncirculationinandneartheeastchinasea |