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| Vận chuyển Ekman× | Máy đo dòng chảy Doppler âm thanh× | Phân tích hài thủy triều× | |
|---|---|---|---|
| Lĩnh vực | Hải dương học | Hải dương học | Hải dương học |
| Họ | Process / pipeline | Process / pipeline | Process / pipeline |
| Năm ra đời≠ | 1905 | 1983 | 1867 |
| Người khởi xướng≠ | Vagn Walfrid Ekman | RD Instruments | William Thomson |
| Loại≠ | theoretical-method | instrumental | fourier-analysis |
| Công trình gốc≠ | Ekman, V. W. (1905). On the influence of the Earth's rotation on ocean currents. Arkiv for Matematik, Astronomi och Fysik, 2(11), 1-52. link ↗ | RD Instruments. (1996). Acoustic Doppler Current Profiler Principles of Operation. A Practical Primer. RD Instruments Technical Note. link ↗ | Godin, G. (1972). The Analysis of Tides. University of Toronto Press. link ↗ |
| Tên gọi khác≠ | Ekman Spiral, Wind-driven Transport | ADCP | Tidal Constituents, Harmonic Tidal Prediction |
| Liên quan | 3 | 3 | 3 |
| Tóm tắt≠ | Ekman transport is the net volume flux of water driven by wind stress balanced with Coriolis force in the surface boundary layer. Derived by Vagn Walfrid Ekman in 1905 from the principle that wind stress is transmitted through the water column in a spiral pattern, Ekman transport is responsible for coastal upwelling and important oceanographic transports. The theory links surface wind patterns directly to ocean circulation. | The Acoustic Doppler Current Profiler (ADCP) is an instrument that uses Doppler-shifted acoustic backscatter to measure water velocity profiles along a vertical profile. Developed by RD Instruments in the 1980s, it has become the standard method for high-resolution current profiling in oceanographic research. ADCPs provide unprecedented spatial and temporal resolution of ocean circulation patterns. | Tidal harmonic analysis is a mathematical method that decomposes observed sea level or current time series into a sum of sinusoidal components with specific frequencies, amplitudes, and phases corresponding to astronomical tidal constituents. Developed by William Thomson (Lord Kelvin) in 1867, harmonic analysis enables prediction of tides and understanding of tidal dynamics in coastal regions. |
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