Relationship between Czech windstorms and air temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F17%3A00459501" target="_blank" >RIV/68378289:_____/17:00459501 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00020699:_____/16:N0000037 RIV/00216208:11310/17:10315718 RIV/00216208:11320/17:10315718

Výsledek na webu

<a href="https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.4682" target="_blank" >https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.4682</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/joc.4682" target="_blank" >10.1002/joc.4682</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Relationship between Czech windstorms and air temperature

Popis výsledku v původním jazyce

The strongest Czech windstorms from 1961 to 2010 were evaluated using a weather extremity index. The indexcombines the return periods of station wind gusts and the size of the affected area allowing determination of the duration ofindividual events. Of 50 extreme wind events (EWEs), most were synoptic-scale windstorms that occurred between the end ofOctober and the beginning of March. However, six EWEs were categorized as the convective-scale windstorms. Four of thestrongest Czech and European windstorms were related to one other (Kyrill, the November 1984 storm, Vivian and Wiebke, andJeanette). Approximately 90% of the synoptic-scale windstorms were characterized by strong westerly or northwesterly owat the 850 hPa level and a north–south temperature gradient at the 500 hPa level. The remaining (rather weaker) synoptic-scaleevents were characterized by southerly ow and a west–east temperature gradient at the 850 and 500 hPa levels, respectively.To determine the abnormality of windstorms by season, a weather abnormality index was used to evaluate 50 abnormalwind events (AWEs). Throughout the summer, as well as in half of May and September, AWEs were categorized as theconvective-scale windstorms accompanied by weak 850 hPa winds. Apart from two events with easterly winds, the remainingAWEs were accompanied by winds from the southwest and a strong west–east temperature gradient at the 850 hPa level.Ten of the latter events occurred in the last two ten-day periods of July and rst two ten-day periods of August. All of theevents followed hot episodes, and seven of them followed one of the 25 extreme high-temperature events. A less pronouncedrelationship between wind and temperature anomalies was present in the colder half of the year from October to March: threeof the strongest Czech EWEs were associated with abnormal high-temperature events (AHEs).

Název v anglickém jazyce

Relationship between Czech windstorms and air temperature

Popis výsledku anglicky

The strongest Czech windstorms from 1961 to 2010 were evaluated using a weather extremity index. The indexcombines the return periods of station wind gusts and the size of the affected area allowing determination of the duration ofindividual events. Of 50 extreme wind events (EWEs), most were synoptic-scale windstorms that occurred between the end ofOctober and the beginning of March. However, six EWEs were categorized as the convective-scale windstorms. Four of thestrongest Czech and European windstorms were related to one other (Kyrill, the November 1984 storm, Vivian and Wiebke, andJeanette). Approximately 90% of the synoptic-scale windstorms were characterized by strong westerly or northwesterly owat the 850 hPa level and a north–south temperature gradient at the 500 hPa level. The remaining (rather weaker) synoptic-scaleevents were characterized by southerly ow and a west–east temperature gradient at the 850 and 500 hPa levels, respectively.To determine the abnormality of windstorms by season, a weather abnormality index was used to evaluate 50 abnormalwind events (AWEs). Throughout the summer, as well as in half of May and September, AWEs were categorized as theconvective-scale windstorms accompanied by weak 850 hPa winds. Apart from two events with easterly winds, the remainingAWEs were accompanied by winds from the southwest and a strong west–east temperature gradient at the 850 hPa level.Ten of the latter events occurred in the last two ten-day periods of July and rst two ten-day periods of August. All of theevents followed hot episodes, and seven of them followed one of the 25 extreme high-temperature events. A less pronouncedrelationship between wind and temperature anomalies was present in the colder half of the year from October to March: threeof the strongest Czech EWEs were associated with abnormal high-temperature events (AHEs).

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/GAP209%2F11%2F1990" target="_blank" >GAP209/11/1990: Povětrnostní extrémy v České republice a jejich vztah k meso-alfa strukturám v polích meteorologických veličin</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Climatology

ISSN

0899-8418

e-ISSN

—

Svazek periodika

37

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

11-24

Kód UT WoS článku

000392415700002

EID výsledku v databázi Scopus

2-s2.0-84959432161