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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10101 - Pure mathematics

Projekt

<a href="/cs/project/GA19-04243S" target="_blank" >GA19-04243S: Parciální diferenciální rovnice v mechanice a termodynamice tekutin</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Boundary Layer Meteorology

ISSN

0006-8314

e-ISSN

1573-1472

Svazek periodika

186

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

19

Strana od-do

595-613

Kód UT WoS článku

000925352400001

EID výsledku v databázi Scopus

2-s2.0-85147338956