Quantification of Summer Thermal Bioclimate of Different Urban Forms in Erzurum City Centre

Öz

Climate has always become an important research object due to its effects on people and environment.

In this study, five different areas in Erzurum city centre were determined for the assessment of thermal comfort

areas. For the measurement of bioclimatic comfort values in these areas, meteorological parameters (such as ambient

temperature (°C), relative humidity (%), wind speed (m/s) and cloudiness (oktas) for the daily time zones such as

00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00 and 21:00 were taken in 2012 between 20th of June and 10th of

September. PET index and RayMan 2.1 model are used for the assessment of bioclimatic comfort conditions. When

the reference station is identified as rural and the other five stations are defined as urban, it is observed that there

are PET differences between urban and rural stations in the range of 1.1ºC to 4.3ºC. While the comfortable range

for summer time are felt as %10.3 in Erzurum Meteorology Airport Station which is rural area covered with steppe

vegetation, this ratio is identified as %20,4 at Ataturk University Campus covered with vegetation. Therefore, urban

green areas should be protected and increased as much as possible.

Anahtar Kelimeler

• Bioclimatic comfort,Erzurum,PET,climate,rayman

Farklı Kent Dokularının Yaz Aylarında Biyoklimatik Konfora Etkisi: Erzurum Örneği

Öz

İklim; insan ve çevreye ait etkileri nedeniyle araştırılmaya değer önemli konular arasında yer almaktadır.

Bu çalışmada, Biyoklimatik konfor değeri hesaplamak için Erzurum kent merkezinde farklı niteliklere sahip beş

alan belirlenmiştir. Bu alanlardan; 2012 yılı 20 Haziran ve 10 Eylül aralığında günlük 00:00, 03:00, 06:00, 09:00,

12:00, 15:00, 18:00 ve 21:00 saatlerini kapsayan sıcaklık (°C) , nem (%), rüzgar (m/s) ve bulutluluk (oktas) gibi

meteorolojik parametreler ölçülmüştür. Çalışmada; fizyolojik Eşdeğer Sıcaklık (FES) indeksi ve RayMan 2.1 modeli

kullanılmıştır. Referans istasyon kırsal, diğer 5 istasyon kentsel olarak tanımlandığında kırsal istasyon ile kentsel

istasyonlar arasında 1.1°C ve 4.3°C arasında değişen FES farklılıkları olduğu görülmüştür. Step bitki örtüsüyle

kaplı kırsal alan olan Erzurum Meteoroloji Havaalanı istasyonunda yaz aylarında “konfor”lu aralık %10,3 oranında

hissedilirken, bitki örtüsünce zengin olan Atatürk Üniversitesi yerleşkesinde bu oran %20,4 olarak tesbit edilmiştir.

Bu nedenle kent içi yeşil alanları mümkün olduğunca korunmalı ve miktarları arttırılmalıdır.

Anahtar Kelimeler

• Biyoklimatik konfor,erzurum,fizyolojik eşdeğer sıcaklık,iklim,rayman

Kaynakça

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