Influence of synoptic scale atmospheric circulation on the development of urban heat island in Prague and Bucharest

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10422722" target="_blank" >RIV/00216208:11320/20:10422722 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=T-jcZJW7Lu" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=T-jcZJW7Lu</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.uclim.2020.100681" target="_blank" >10.1016/j.uclim.2020.100681</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of synoptic scale atmospheric circulation on the development of urban heat island in Prague and Bucharest

Popis výsledku v původním jazyce

This study has analysed the development of the urban heat island (UHI) under various synoptic scale atmospheric circulation for two large cities - Prague in central Europe and Bucharest in south-eastern Europe, including seasonal differences and long-term changes. At the best of our knowledge, it is the first comparison between two European cities from this perspective. Analysis was conducted on the base of minimum air temperature data from pairs of urban and peri-urban stations. The average UHI intensity is 2.3 degrees C for Prague and 1.8 degrees C for Bucharest, it exceeds 4 degrees C in 6-10% of cases, and the highest values occur in August in both cities. The annual course of monthly mean values of UHI intensities has higher amplitude in Bucharest (1.2 degrees C) than Prague (0.6 degrees C). Synoptic scale circulation is classified according to mean sea level pressure data from ECMWF Era-Interim reanalysis using cost733class software. The results show that UHI is more intense under anticyclonic situations with southern winds in the both cities. Over 1981-2016, we found that the UHI intensity followed statistically significant increasing trend, much larger trend for Bucharest than Prague (3.3 degrees C vs. 1.3 degrees C / 100 years).

Název v anglickém jazyce

Influence of synoptic scale atmospheric circulation on the development of urban heat island in Prague and Bucharest

Popis výsledku anglicky

This study has analysed the development of the urban heat island (UHI) under various synoptic scale atmospheric circulation for two large cities - Prague in central Europe and Bucharest in south-eastern Europe, including seasonal differences and long-term changes. At the best of our knowledge, it is the first comparison between two European cities from this perspective. Analysis was conducted on the base of minimum air temperature data from pairs of urban and peri-urban stations. The average UHI intensity is 2.3 degrees C for Prague and 1.8 degrees C for Bucharest, it exceeds 4 degrees C in 6-10% of cases, and the highest values occur in August in both cities. The annual course of monthly mean values of UHI intensities has higher amplitude in Bucharest (1.2 degrees C) than Prague (0.6 degrees C). Synoptic scale circulation is classified according to mean sea level pressure data from ECMWF Era-Interim reanalysis using cost733class software. The results show that UHI is more intense under anticyclonic situations with southern winds in the both cities. Over 1981-2016, we found that the UHI intensity followed statistically significant increasing trend, much larger trend for Bucharest than Prague (3.3 degrees C vs. 1.3 degrees C / 100 years).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Urban Climate

ISSN

2212-0955

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

100681

Kód UT WoS článku

000594385700012

EID výsledku v databázi Scopus

2-s2.0-85089350389