Evaluation and modelling the micro-bioclimatological conditions of a popular playground in Szeged, Hungary

Égerházi, Lilla Andrea; Kántor, Noémi; Gál, Tamás

doi:10.1556/irase.4.2013.1.8

Cited by 11 publications

(8 citation statements)

References 5 publications

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“…Under Central-European climate conditions, extreme heat stress at the street level is usually the effect of high solar radiation and the resulting high radiation budget of pedestrians (eg. Gulyás, Unger, 2010;Kántor, Unger, 2011;Égerházi, et al, 2013;Lee, et al, 2014). Carefully designed shading is therefore essential in the fight against heat stress and in the creation of comfortable outdoor places (Lee, et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…the reduction of direct solar radiation is the most effective way to moderate summer heat stress under Central-European climate conditions (e.g. Mayer, 2008;Mayer, et al, 2008;Égerházi, et al, 2013Kántor, et al, 2016). Shade trees have positive effect not only on outdoor thermal comfort, but also on thermal conditions inside buildings (Akbari, et al, 1997;Donovan, Butry, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Solar permeability of different tree species in Szeged, Hungary

Takács¹,

Kiss²,

Gulyás³

et al. 2016

Geogr Pannon

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The heat stress modification capacity of urban trees is widely acknowledged and makes these natural landscape elements very important in the field of climate conscious urban planning. Many studies proved that shading, i.e. the reduction of direct solar radiation is the most effective way to moderate summer heat stress under Central European climatic conditions. The investigation aims at determining the transmissivity of four tree species that occur frequently in Hungarian cities: Sophora japonica, Tilia cordata, Celtis occidentalis and Aesculus hippocastanum. In order to accomplish that, a systematic radiation measurement campaign was carried out in the South-Hungarian city of Szeged, from early summer (foliated condition of trees) to late autumn (nearly leafless condition). Short-wave radiation from the upper hemisphere was measured with Kipp & Zonen pyranometers under carefully selected tree specimens (transmitted radiation), as well as on a roof station free from sky obstruction (actual value of global radiation). The calculated transmissivity values varied greatly with the seasonal status of the canopy (the median value of transmissivity increased from 0.03 to 0.47 in case of A. hippocastanum), and we found considerable inter-species differences too, evidencing that solar permeability depends on the amount of leaves, leaf density and other tree crown-related characteristics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solar permeability of different tree species in Szeged, Hungary

Takács¹,

Kiss²,

Gulyás³

et al. 2016

Geogr Pannon

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“…A humán-bioklimatológiai kutatások gyakorlati felhasználhatóságát szem előtt tartva 2011 nyarától mikroskálájú klíma-és hőstressztérképeket készítettem bizonyos mintaterü-leteinkről (Égerházi et al , Égerházi és Gál 2012(Égerházi et al , Égerházi et al 2013a(Égerházi et al , 2013c a RayMan (2.0) és ENVI-met 3.1 modellek segítségével. A térképek a vizsgált területeken jellemző mikroklimatikus alapparaméterek (T a , RH, v, T mrt ), valamint a belőlük származtatott PET-értékek térbeli és időbeli mintázatát szemléltették.…”

Section: A Mikro-bioklimatológiai Viszonyok Modellezése Egy Kiválasztunclassified

Városi közterületek komplex humán-bioklimatológiai értékelése és annak várostervezési vonatkozásai szegedi példák alapján

Égerházi

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“…Under Central-European climate conditions, extreme heat stress at the street level is usually the effect of high solar radiation and the resulting high radiation budget of pedestrians (eg. Gulyás and Unger 2010;Kántor and Unger 2011;Égerházi et al 2013a;Lee et al 2014). Carefully designed shading is therefore essential in the fight against heat stress and in the creation of comfortable outdoor places (Lee et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…the reduction of direct solar radiation is the most effective way to moderate summer heat stress under Central-European climate conditions (e.g. Mayer 2008;Mayer et al 2008;Égerházi et al 2013a, 2014Kántor et al 2016). Shade trees have positive effect not only on outdoor thermal comfort, but also on thermal conditions inside buildings (Akbari et al 1997;Donovan and Butry 2009).…”

Section: Introductionmentioning

confidence: 99%

Investigation of shading efficiency of popular urban tree species based on examples from Szeged

Báló-Takács¹

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In urban areas vegetation (especially woody vegetation) is of utmost importance, since it affects the ecological conditions of the city. Urban trees play an important role in improving urban climate both at the local (city, district) and the micro-level (e.g. in public squares). Establishing and maintaining advanced and detailed information systems necessary for the management of urban tree stands is an important task of environmental and climate-conscious city management. Despite that, few of the Hungarian municipalities have a regularly updated tree database. The city of Szeged started efficient green space management in autumn 2013, when we started the creation of a detailed and up-to-date tree register for the public areas, which has been continuously expanded ever since. The survey of the present study covers the period of the growing season, from late spring to early autumn of 2013. All the trees are included in the survey and quite a number of data are recorded for each individual (e.g. species, age, size parameters, exact location, health status, etc.). The recorded data are paperbased, however they are included in a GIS-based green space inventory software, Greenformatic, where coordinates are associated to each object, while information on the state of the tree, its location and handling can be found in the attribute table. The trees included are mostly concentrated in the inner city of Szeged, but the surveys will gradually cover ever larger areas of the city. The results highlight the fact that the structural attributes of the different species' populations are formed by the integrated effect of the species' urban tolerance and planting policies of the past decades. The current database already allows highly complex analysis, which contributes to the well-being of city residents.

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Evaluation and modelling the micro-bioclimatological conditions of a popular playground in Szeged, Hungary

Cited by 11 publications

References 5 publications

Solar permeability of different tree species in Szeged, Hungary

Solar permeability of different tree species in Szeged, Hungary

Városi közterületek komplex humán-bioklimatológiai értékelése és annak várostervezési vonatkozásai szegedi példák alapján

Investigation of shading efficiency of popular urban tree species based on examples from Szeged

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