ISSN:
1573-1472
Keywords:
Temperature-humidity similarity
;
Bowen ratio regression method
;
Non-local effects
;
Violation of Monin–Obukhov similarity
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The correlation coefficient between temperature and specific humidity (rTq) is considered. A brief literature review as well as experimental data reveals that there is evidence that the eddy diffusivities for heat and water vapour are not equal if |rTq| ≤ 1. Several conditions under which this can occur are discussed. It is concluded that if non-local effects are of the same order as local effects T and q will behave in a non-similar fashion. Moreover, it is shown that if |rTq| = 1, temperature and specific humidity both will obey Monin–Obukhov similarity. In addition, based on that derivation, a new method is presented to determine the Bowen ratio from the T - q correlation. A first test of this new Bowen ratio regression method is presented. It is recommended to use rTq as a diagnostic tool to judge whether T-q similarity holds.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1002071607796
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