The effect of submeso motions on the budgets of the mean turbulent kinetic energy and temperature variance in the stable atmospheric surface layer

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F23%3A00569859" target="_blank" >RIV/67985840:_____/23:00569859 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10546-022-00774-x" target="_blank" >https://doi.org/10.1007/s10546-022-00774-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10546-022-00774-x" target="_blank" >10.1007/s10546-022-00774-x</a>

Result language
angličtina
Original language name
The effect of submeso motions on the budgets of the mean turbulent kinetic energy and temperature variance in the stable atmospheric surface layer
Original language description
By considering turbulence observations in the atmospheric stable surface layer over complex terrain, we study the effect of submeso motions on the budgets of the mean turbulent kinetic energy (TKE) and (half) the temperature variance. Different averaging times are considered (i.e., 100 s and 30 min), to filter out or retain the submeso contributions to second-order moments. Furthermore, results are interpreted by introducing four parameters that express the relative submeso contribution to the TKE, the temperature variance, and the vertical fluxes of heat and momentum. Four regimes are identified according to these four submeso parameters and the budgets are evaluated for these regimes. A balance among production, buoyancy (for the TKE) and dissipation occurs for the two regimes characterized by small submeso contribution to the fluxes, while an unbalance occurs for the other two regimes, where the submeso contribution to the fluxes is large. Instead, the budgets are independent of the magnitude of the submeso contribution to the TKE and the temperature variance.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10101 - Pure mathematics

Project
<a href="/en/project/GA19-04243S" target="_blank" >GA19-04243S: Partial differential equations in mechanics and thermodynamics of fluids</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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