| WANG Yihang,FANG Guohong,WEI Zexun,WANG Yonggang,WANG Xinyi,XU Xiaoqing. 2012. Cotidal charts and tidal power input atlases of the global ocean from TOPEX/Poseidon and JASON-1 altimetry. Acta Oceanologica Sinica, (4):11－23 |
| Cotidal charts and tidal power input atlases of the global ocean from TOPEX/Poseidon and JASON-1 altimetry |
| Cotidal charts and tidal power input atlases of the global ocean from TOPEX/Poseidon and JASON-1 altimetry |
| Received:November 05, 2011 Revised:June 13, 2012 |
| DOI：10.1007/s13131-012-0216-x |
| Key words:satellite altimetry global ocean tides tidal energetics tidal power input |
| 中文关键词: satellite altimetry global ocean tides tidal energetics tidal power input |
| 基金项目:The National Natural Science Foundation of China under contract No. 40676009 and 40606006; the Basic Research Project of Qingdao Science and Technology Program under contract No. 11-1-4-98-jch. |
| Author Name | Affiliation | E-mail | | WANG Yihang | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Ningbo University, Ningbo 315211, China
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China
Graduate School, Chinese Academy of Sciences, Beijing 100039, China | wangyihang@nbu.edu.cn | | FANG Guohong | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | WEI Zexun | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | WANG Yonggang | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | WANG Xinyi | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | XU Xiaoqing | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | |
|
| Hits: 1116 |
| Download times: 819 |
| Abstract: |
| The global distributions of eight principal tidal constituents, M2, S2, K1, O1, N2, K2, P1, and Q1, are derived using TOPEX/Poseidon and JASON-1(T/P-J) satellite altimeter data for 16 a. The intercomparison of the derived harmonics at 7000 subsatellite track crossover points shows that the root mean square (RMS) values of the tidal height differences of the above eight constituents range from 1.19 cm to 2.67 cm, with an average of about 2 cm. The RMS values of the tidal height differences between T/P-J solutions and the harmonics from ground measurements at 152 tidal gauge stations for the above constituents range from 0.34 cm to 1.08 cm, and the relative deviations range from 0.031 to 0.211. The root sum square of the RMS differences of these eight constituents is 2.12 cm, showing the improvement of the present model over the existing global ocean tidal models. Based on the obtained tidal model the global ocean tidal energetics is studied and the global distribution of the tidal power input density by tide-generating force of each constituent is calculated, showing that the power input source regions of semidiurnal tides are mainly concentrated in the tropical belt between 30°S and 30°N, while the power input source regions of diurnal tides are mainly concentrated off the tropic oceans. The global energy dissipation rates of the M2, S2, K1, O1, N2, P1, K2 and Q1 tides are 2.424, 0.401, 0.334, 0.160, 0.113, 0.035, 0.030 and 0.006 TW, respectively. The total global tidal dissipation rate of these eight constituents amounts to 3.5 TW. |
| 中文摘要: |
| The global distributions of eight principal tidal constituents, M2, S2, K1, O1, N2, K2, P1, and Q1, are derived using TOPEX/Poseidon and JASON-1(T/P-J) satellite altimeter data for 16 a. The intercomparison of the derived harmonics at 7000 subsatellite track crossover points shows that the root mean square (RMS) values of the tidal height differences of the above eight constituents range from 1.19 cm to 2.67 cm, with an average of about 2 cm. The RMS values of the tidal height differences between T/P-J solutions and the harmonics from ground measurements at 152 tidal gauge stations for the above constituents range from 0.34 cm to 1.08 cm, and the relative deviations range from 0.031 to 0.211. The root sum square of the RMS differences of these eight constituents is 2.12 cm, showing the improvement of the present model over the existing global ocean tidal models. Based on the obtained tidal model the global ocean tidal energetics is studied and the global distribution of the tidal power input density by tide-generating force of each constituent is calculated, showing that the power input source regions of semidiurnal tides are mainly concentrated in the tropical belt between 30°S and 30°N, while the power input source regions of diurnal tides are mainly concentrated off the tropic oceans. The global energy dissipation rates of the M2, S2, K1, O1, N2, P1, K2 and Q1 tides are 2.424, 0.401, 0.334, 0.160, 0.113, 0.035, 0.030 and 0.006 TW, respectively. The total global tidal dissipation rate of these eight constituents amounts to 3.5 TW. |
|
HTML
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|
