Interdecadal variations and trends of the Urban Heat Island in Athens (Greece) and its response to heat waves

Founda, Dimitra; Pierros, Fragiskos; Petrakis, M.; Zerefos, C. S.

doi:10.1016/j.atmosres.2015.03.016

Cited by 100 publications

(97 citation statements)

References 50 publications

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“…The UHI intensity detected in several European and Mediterranean cities is more signifi cant at night and varies between 1.5 °C and 12.0 °C, while in other cities (e.g. Athens and Parma), maximum UHI intensity occurs during daytime (Santamouris, M. 2007;Founda, D. et al 2015).…”

Section: Detection Of Atmospheric Urban Heat Island Through Direct Mementioning

confidence: 99%

“…It is concluded that reported UHI varies considerably according to existing studies in terms of maximum intensity and season/time of occurrence. In addition to the aforementioned reasons related to diff erent climatic features and thermal balance of the cities, other reasons such as the application of diff erent monitoring protocols or the selection of reference stations could largely infl uence UHI estimations (Founda, D. et al 2015).…”

Section: Detection Of Atmospheric Urban Heat Island Through Direct Mementioning

confidence: 99%

“…Air temperature is usually measured at about 1.5 meters above the ground. In the areas where measurements in fi xed stations are not available, the fi eld campaigns and transects studies involve the use of hand-held measurement devices or mounting measurement equipment on cars (Founda, D. et al 2015).…”

Section: Data Usedmentioning

confidence: 99%

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Detection of atmospheric urban heat island through direct measurements in Cluj-Napoca city, Romania

et al. 2016

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In the last decades, cities worldwide have experienced accelerated development, so that continuous urbanization and its impact is presently one of the most important topics in diff erent fi elds of research. The main aim of this study is to identify the intensity of the atmospheric urban heat island in Cluj-Napoca city, through direct observations campaigns by using fi xed points and transect measurements. The data has been collected over a period of 6 months (May-October 2015). The measurements have been performed mainly in anti-cyclonic weather condition, during the night, between 23:00 and 03:00. The profi les trajectories followed the main roads of the city on directions North-South, East-West, and Northwest-Southeast. 8 fi xed points have been chosen in order to highlight best the temperature patt erns in diff erent Local Climate Zones (LCZs). The main fi ndings of the study are the followings: the direct observations performed in three seasons (spring, summer and autumn) revealed the existence of an atmospheric urban heat island in Cluj-Napoca city; the warmest areas are compact high-rise and compact midrise, located in the eastern half of the city, where the temperature increases by more than 2.0 °C, as average value for all campaigns, but the maximum values, recorded in the summer are higher than 3.0 °C; the coolest areas are sparsely built areas and the large low-rise/water areas, where the temperature is quite similar to that recorded in the nearby rural areas (diff erence of 0.0-0.1 °C, as average values); local factors, such as mountain breeze and topography have a great impact on the atmospheric urban heat island confi guration.

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Section: Detection Of Atmospheric Urban Heat Island Through Direct Mementioning

confidence: 99%

Section: Detection Of Atmospheric Urban Heat Island Through Direct Mementioning

confidence: 99%

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Detection of atmospheric urban heat island through direct measurements in Cluj-Napoca city, Romania

et al. 2016

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“…En el entorno mediterráneo, hay varios estudios en ciudades costeras que observan una mayor intensidad estival de la ICU (Founda et al, 2015), aunque parece atribuirse a la mayor radiación solar y al dominio de situaciones atmosféricas estables caracterís-ticas de esa época y no al efecto del turismo (Vardoulakis et al, 2013). Otros trabajos se centran en analizar la ICU durante el verano en ciudades mediterráneas, ya que es cuando mayor incidencia tiene debido al incremento de disconfort térmico que conlleva (Giannaros y Melas, 2012), relacionado el fenómeno con episodios fuertes de calor (olas de calor), la calidad del aire (Poupkou et al, 2011) y la mayor demanda energética (Vardoulakis et al, 2013).…”

Section: Introductionunclassified

Clima, sociedad, riesgos y ordenación del territorio

Cantos¹,

Amorós²,

Mantero³

2016

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“…Similarly, Greek city centers are characterized by particularly high temperatures during summer. Several studies focused on the detection of UHI in the Greek cities, mainly in Athens and Thessaloniki [1][2][3][4][5], as well as in medium-sized cities such as Patras, Herakleion, and Volos [6], and even in smaller cities such as Chania [7], Agrinio [8], and Serres [9].…”

Section: Introductionmentioning

confidence: 99%

Microclimate Improvement of Inner-City Urban Areas in a Mediterranean Coastal City

Makropoulou

2017

Sustainability

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This paper investigates urban bioclimatic interventions in the central area of a coastal medium-sized city in Greece. Two urban blocks typical of the urban fabric of the city center and a neighborhood of 38 urban blocks were selected. Different proposed Bioclimatic Renewal Scenarios were investigated through microclimatic simulations using the micro-scale numerical model, ENVI-met. The simulations aimed at assessing various scenarios and examining the effect of the different bioclimatic interventions on the local outdoor environment, such as the application of cool materials, greenery of public open space, and other. Thus a parametric analysis was carried out. A final bioclimatic renewal scenario, based primarily on the parameters, proved to have a positive effect on the local microclimate, was proposed and assessed. The simulation results showed that the final scenario resulted in the most effective heat mitigation strategy for the case studies' microclimate. The vegetation-based scenario also contributed to a significant microclimate improvement in the case studies. The benefits of the various bioclimatic interventions were magnified when these were applied on a spatial scale larger than that of the single urban block, hence on the urban neighborhood scale.

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Interdecadal variations and trends of the Urban Heat Island in Athens (Greece) and its response to heat waves

Cited by 100 publications

References 50 publications

Detection of atmospheric urban heat island through direct measurements in Cluj-Napoca city, Romania

Detection of atmospheric urban heat island through direct measurements in Cluj-Napoca city, Romania

Clima, sociedad, riesgos y ordenación del territorio

Microclimate Improvement of Inner-City Urban Areas in a Mediterranean Coastal City

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