| 珠江河口潮能收支研究 |
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| 引用本文： | 白鹏,顾艳镇,李培良,吴克俭.珠江河口潮能收支研究[J].海洋学报(英文版),2016,35(5):54-65. |
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| 作者姓名： | 白鹏 顾艳镇 李培良 吴克俭 |
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| 作者单位： | 物理海洋教育部重点实验室, 中国海洋大学, 青岛, 266100,信息科学与工程学院, 中国海洋大学, 青岛, 266100,物理海洋教育部重点实验室, 中国海洋大学, 青岛, 266100,物理海洋教育部重点实验室, 中国海洋大学, 青岛, 266100 |
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| 基金项目： | The National Natural Science Foundation of China under contract No. 41476002; the Shandong Province Natural Science Foundation under contract No. ZR2014DQ013; the Shandong Scientific and Technological Development Program under contract No. 2013GHY11502. |
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| 摘 要： | Tidal energy budget in the Zhujiang(Pearl River) Estuary(ZE) is evaluated by employing high-resolution baroclinic regional ocean modeling system(ROMS). The results obtained via applying the least square method on the model elevations are compared against the tidal harmonic constants at 18 tide stations along the ZE and its adjacent coast. The mean absolute errors between the simulation and the observation of M_2, S_2, K_1 and O_1 are 4.6, 2.8, 3.2 and 2.8 cm in amplitudes and 9.8°, 15.0°, 4.6° and 4.6° in phase-lags, respectively. The comparisons between the simulated and observed sea level heights at 11 tide gauge stations also suggest good model performance. The total tidal energy flux incoming the ZE is estimated to be 343.49 MW in the dry season and larger than 336.18 MW in the wet season, which should due to higher mean sea level height and heavier density in the dry season. M_2, K_1, S_2, O_1 and N_2, the top five barotropic tidal energy flux contributors for the ZE,import 242.23(236.79), 52.97(52.08), 24.49(23.96), 16.22(15.91) and 7.10(6.97) MW energy flux into the ZE in dry(wet) season, successively and respectively. The enhanced turbulent mixing induced by eddies around isolated islands and sharp headlands dominated by bottom friction, interaction between tidal currents and sill topography or constricted narrow waterways together account for the five energy dissipation hotspots, which add up to about 38% of the total energy dissipation inside the ZE.
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| 关 键 词： | 潮能通量 能量耗散 珠江河口 ROMS模型 |
| 收稿时间： | 2015/6/22 0:00:00 |
| 修稿时间： | 2015/10/21 0:00:00 |
Tidal energy budget in the Zhujiang (Pearl River) Estuary |
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| BAI Peng,GU Yanzhen,LI Peiliang and WU Kejian.Tidal energy budget in the Zhujiang (Pearl River) Estuary[J].Acta Oceanologica Sinica,2016,35(5):54-65. |
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| Authors: | BAI Peng GU Yanzhen LI Peiliang and WU Kejian |
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| Affiliation: | 1.Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China2.College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China |
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| Abstract: | Tidal energy budget in the Zhujiang (Pearl River) Estuary (ZE) is evaluated by employing high-resolution baroclinic regional ocean modeling system (ROMS). The results obtained via applying the least square method on the model elevations are compared against the tidal harmonic constants at 18 tide stations along the ZE and its adjacent coast. The mean absolute errors between the simulation and the observation of M2, S2, K1 and O1 are 4.6, 2.8, 3.2 and 2.8 cm in amplitudes and 9.8°, 15.0°, 4.6° and 4.6° in phase-lags, respectively. The comparisons between the simulated and observed sea level heights at 11 tide gauge stations also suggest good model performance. The total tidal energy flux incoming the ZE is estimated to be 343.49 MW in the dry season and larger than 336.18 MW in the wet season, which should due to higher mean sea level height and heavier density in the dry season. M2, K1, S2, O1 and N2, the top five barotropic tidal energy flux contributors for the ZE, import 242.23 (236.79), 52.97 (52.08), 24.49 (23.96), 16.22 (15.91) and 7.10 (6.97) MW energy flux into the ZE in dry (wet) season, successively and respectively. The enhanced turbulent mixing induced by eddies around isolated islands and sharp headlands dominated by bottom friction, interaction between tidal currents and sill topography or constricted narrow waterways together account for the five energy dissipation hotspots, which add up to about 38% of the total energy dissipation inside the ZE. |
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| Keywords: | tidal energy flux energy dissipation Zhujiang Estuary regional ocean modeling system |
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