Bulk transfer law: Difference between revisions
From Glossary of Meteorology
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|Display title=bulk transfer law | |||
{{ | |Definitions={{Definition | ||
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|Meaning=The relationship between surface [[kinematic flux]] of any meteorological [[variable]] to the product of [[wind speed]] times the difference of that variable between the surface and some reference height, usually taken as 10 m AGL. | |||
|Explanation=For example, the bulk transfer law for kinematic [[heat flux]] at the surface is [[File:ams2001glos-Bex03.gif|link=|ams2001glos-Bex03]] , where ''C''<sub>''H''</sub> is the [[bulk transfer coefficient]] for [[heat]], ''M'' is wind speed, θ<sub>''s''</sub> is the [[potential temperature|potential temperature]] of the surface, ''w''′ is the [[fluctuation]] in [[vertical velocity]], θ<sub>''s''</sub>′ is the fluctuation in potential temperature, the overbar indicates an average, and θ<sub>10m</sub> is the potential temperature at height 10 m AGL. | |||
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Latest revision as of 13:51, 26 March 2024
The relationship between surface kinematic flux of any meteorological variable to the product of wind speed times the difference of that variable between the surface and some reference height, usually taken as 10 m AGL.
For example, the bulk transfer law for kinematic heat flux at the surface is 
, where CH is the bulk transfer coefficient for heat, M is wind speed, θs is the potential temperature of the surface, w′ is the fluctuation in vertical velocity, θs′ is the fluctuation in potential temperature, the overbar indicates an average, and θ10m is the potential temperature at height 10 m AGL.
