Počet záznamů: 1
Meteorological Factors Related to Summertime Temperature Extremes in Regional Climate Models over Europe
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SYSNO ASEP 0503281 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Meteorological Factors Related to Summertime Temperature Extremes in Regional Climate Models over Europe Tvůrce(i) Lhotka, Ondřej (UFA-U) RID, ORCID
Kyselý, Jan (UFA-U) RID, ORCIDCelkový počet autorů 2 Zdroj.dok. AMS Annual Meeting /99./. - Phoenix : American Meteorological Society, 2019
S. 479Poč.str. 1 s. Forma vydání Online - E Akce AMS Annual Meeting /99./ Datum konání 06.01.2019 - 10.01.2019 Místo konání Phoenix Země US - Spojené státy americké Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova temperature extremes ; regional climate model ; atmospheric circulation ; land–atmosphere interactions ; Europe Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Climatic research Institucionální podpora UFA-U - RVO:68378289 Anotace We evaluate the capability of regional climate models (RCMs) to simulate spatial patterns of links between atmospheric circulation, land–atmosphere interactions and summertime high temperature extremes (TE) over Europe. Five RCMs from the EURO-CORDEX project driven by global climate models were examined and compared to the reference data (ERA-Interim reanalysis). TE were analysed as excesses above the 90% quantile of daily maximum temperature distribution in summer over the 1979–2005 period. The occurrence and magnitude of TE was related to anomalies in 850 hPa u- and w-wind components, net shortwave radiation, and evaporative fraction. The links vary between geographical regions. In Scandinavia and the British Isles, increases of net shortwave radiation during TE are largest. A decrease of zonal flow is linked to TE mainly over the Atlantic coast and Eastern Europe, while southerly advection is enhanced during TE nearly over the whole domain. Differences in increases of net shortwave radiation during TE were found between European regions and also among the RCMs. The largest within-ensemble variability is manifested in evaporative fraction which is linked to the magnitude of TE but its relationships to precipitation are often suspicious in the RCMs. Substantially low values of evaporative fraction were associated with improper simulation of westerly advection in some RCMs, suggesting a relatively strong coupling between individual meteorological variables and their biases in the RCMs. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2019
Počet záznamů: 1