WIND CHARACTERISTICS RECORDED AT THE CZECH CARBON OBSERVATION SYSTEM (CZECOS) SITE RAJEC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F18%3A00507189" target="_blank" >RIV/86652079:_____/18:00507189 - isvavai.cz</a>

Výsledek na webu

<a href="http://ejes.cz/index.php/ejes/article/download/335/304/" target="_blank" >http://ejes.cz/index.php/ejes/article/download/335/304/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14712/23361964.2018.16" target="_blank" >10.14712/23361964.2018.16</a>

Jazyk výsledku

angličtina

Název v původním jazyce

WIND CHARACTERISTICS RECORDED AT THE CZECH CARBON OBSERVATION SYSTEM (CZECOS) SITE RAJEC

Popis výsledku v původním jazyce

The main aim of this study is to investigate general and temporal characteristics of wind speed and direction at Rajec Ecosystem Station (ES), which is part of the Czech Carbon Observation System (CzeCOS) network and located in the Czech-Moravian highlands in the Czech Republic. Four years (2013-2016) of eddy covariance data recorded in a mature monoculture of spruce (Picea abies) was used to build wind roses and analyse the temporal wind characteristics. The prevailing wind directions at Rajec ES were South-East and North-West and the highland orography in this region does not affect wind flow. Changes in wind direction were recorded each year mainly due to changes in the general atmospheric circulation patterns over Europe. This paper records the occurrence of calm conditions and a threshold of horizontal wind speed (u) of less than 1 m s-1, was used to define calm periods. The average percentage of calm conditions over 4 years was 6% and when the data was separated into daytime and nighttime occurrence of calm conditions, it was 8% and 4%, respectively.

Název v anglickém jazyce

WIND CHARACTERISTICS RECORDED AT THE CZECH CARBON OBSERVATION SYSTEM (CZECOS) SITE RAJEC

Popis výsledku anglicky

The main aim of this study is to investigate general and temporal characteristics of wind speed and direction at Rajec Ecosystem Station (ES), which is part of the Czech Carbon Observation System (CzeCOS) network and located in the Czech-Moravian highlands in the Czech Republic. Four years (2013-2016) of eddy covariance data recorded in a mature monoculture of spruce (Picea abies) was used to build wind roses and analyse the temporal wind characteristics. The prevailing wind directions at Rajec ES were South-East and North-West and the highland orography in this region does not affect wind flow. Changes in wind direction were recorded each year mainly due to changes in the general atmospheric circulation patterns over Europe. This paper records the occurrence of calm conditions and a threshold of horizontal wind speed (u) of less than 1 m s-1, was used to define calm periods. The average percentage of calm conditions over 4 years was 6% and when the data was separated into daytime and nighttime occurrence of calm conditions, it was 8% and 4%, respectively.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

<a href="/cs/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 - Rozvoj Centra pro studium dopadů globální změny klimatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

European Journal of Environmental Sciences

ISSN

1805-0174

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

117-123

Kód UT WoS článku

000453587400004

EID výsledku v databázi Scopus

2-s2.0-85062898024