手法を比較

	バルク空力フラックス	サーマルウィンド
分野	気象学	気象学
系統	Process / pipeline	Process / pipeline
提唱年	1981	1920s
提唱者	Large and Pond	Jacobbian insights from geostrophic flow
種類	Surface flux estimation method	Wind-temperature relationship
原典	Large, W. G., & Pond, S. (1981). Open ocean momentum flux measurements in moderate to strong winds. Journal of Physical Oceanography, 11(3), 324-336.	Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press.
別名	Bulk aerodynamic approach, Bulk flux parametrization, Aerodynamic bulk method	Thermal wind, Vertical wind shear, Barotropic
関連	3	3
概要	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 thermal wind relationship is a fundamental meteorological principle that links vertical wind shear to horizontal temperature gradients. It states that wind speed increases with height in the direction of warming—a direct consequence of hydrostatic and geostrophic balance combined with the ideal gas law.