Sammenlign metoder
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| Bulk aerodynamisk flux× | Eddy Covariance× | |
|---|---|---|
| Fagområde | Meteorologi | Meteorologi |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1981 | 1951 |
| Ophavsperson≠ | Large and Pond | Swinbank |
| Type≠ | Surface flux estimation method | Micrometeorological flux measurement |
| Oprindelig kilde≠ | Large, W. G., & Pond, S. (1981). Open ocean momentum flux measurements in moderate to strong winds. Journal of Physical Oceanography, 11(3), 324-336. DOI ↗ | Baldocchi, D. (2003). Assessing the eddy covariance technique for evaluating carbon dioxide fluxes of ecosystems: past, present and future. Global Change Biology, 9(4), 479-492. DOI ↗ |
| Aliasser≠ | Bulk aerodynamic approach, Bulk flux parametrization, Aerodynamic bulk method | Eddy covariance, EC flux, Eddy correlation, Direct flux measurement |
| Relaterede | 3 | 3 |
| Resumé≠ | The bulk aerodynamic method estimates surface energy and momentum fluxes from standard meteorological observations. Rather than measuring turbulent fluxes directly, it parameterizes them using measurements of wind speed, temperature, and moisture at a reference height (typically 10 m) and surface conditions, multiplied by empirically derived drag and transfer coefficients. | The eddy covariance method is a direct, micrometeorological technique that measures turbulent fluxes of momentum, heat, water vapor, and CO2 by computing the covariance between high-frequency fluctuations of wind velocity and scalar properties (temperature, humidity, concentration). It is the gold standard for measuring ecosystem-atmosphere exchanges and validating model parameterizations. |
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