Urban Heat Island in Ankara with Travers

Year 2019, Volume: 17 Issue: 2, 281 - 317, 31.10.2019

Erkan Yılmaz

https://doi.org/10.33688/aucbd.600933

Abstract

As Ankara is morphologically situated in a basin,
this causes air conditions of poor quality for the city-dwellers, and such
adverse conditions are further increased sometimes with the impact of urban
heat island (UHI). In this study, mobile measurements were made for 12 months
(1 at daytime and 1 at nocturnally) to determine the characteristics of UHI in
Ankara, and the results were assessed and analyzed using statistical methods. Based
on the assessments, the northern cliff of the city is formed at Yükseltepe intersection
and the southern cliff is formed at Turan Güneş Street. There are also two
different peaks in Ulus and Kızılay, and the plateau of the urban is between the cliffs and peaks. The
plateau of the urban includes a temperature sinks and hills, which is caused by
the land use in the urban, heavy traffic and characteristics of urban
structure. UHI formed in the urban becomes more apparent in the summer season (in
the arid period) and is decreased by 0.2 °C during the day and 0.4 °C at night
as the temperatures go far away from the city center. The temperatures drop in
the sites where visibility of sky is increased. The elevation is effective in
the temperature distribution, this is especially effective in the high pressure
conditions.

Keywords

Urban heat island, Ankara, Travers, Sky view factor, Urban heat island intensity

Mobil Ölçümlerle Ankara Şehir Isı Adası

Abstract

Ankara’nın morfolojik olarak bir çanakta yer
alması, şehir sakinleri için kalitesiz hava koşulları yaratmakta, bu olumsuz
koşullar bazı dönemlerde şehir ısı adası (ŞIA) etkisiyle daha da artmaktadır. Bu
çalışmada, Ankara şehrinde ŞIA’nın özelliklerinin belirlenmesi amacıyla 12 ay
boyunca her ay için 1 gece 1 gündüz mobil ölçümler yapılmış, sonuçlar
değerlendirilmiş ve istatistiksel yöntemler kullanılarak analiz edilmiştir. Bu
değerlendirmelere göre, şehrin kuzey falezi Yükseltepe Kavşağı’nda, güney
falezi ise Turan Güneş Caddesi’nde oluşmaktadır. Ulus ve Kızılay’da iki ayrı
zirve meydana gelmekte, falez ve zirveler arasında ise şehir platosu yer
almaktadır. Şehir platosu içerisinde sıcaklık çukuru ve tepeleri görülmekte, bu
durum şehir içi arazi kullanımı ve trafik yoğunluğu ve şehir yapısı
özelliklerinden kaynaklanmaktadır. Şehirde oluşan ŞIA, yaz aylarında (kurak
dönemde) daha belirginleşmekte, sıcaklıklar şehir merkezinden uzaklaştıkça
gündüzleri 0,2 geceleri 0,4 °C azalmaktadır. Gök görüş oranı değerlerinin
arttığı sahalarda sıcaklıklar düşmektedir. Sıcaklık dağılışında yükselti de
etkili olmakta, bu durum özellikle yüksek basınç koşullarında daha görünür hale
gelmektedir.

Keywords

Şehir ısı adası, Ankara, Mobil ölçüm, Gök görüş oranı, Şehir ısı adası şiddeti

References

• Ahmadi Venhari, A., Tenpierik, M., Taleghani, M. (2019). The Role of Sky View Factor and Urban Street Greenery in Human Thermal Comfort and Heat Stress in a Desert Climate. Journal of Arid Environments, 166, 68–76. https://doi.org/10.1016/J.JARIDENV.2019.04.009
• Akalan, İ. (1984). Hava Kirlenmesi, Ankara Örneği. Ankara: TÜBİTAK.
• Akman, Y. (1990). İklim ve Biyoiklim (Biyoiklim metotları ve Türkiye iklimleri). Ankara: Palme Yayın Dağıtım.
• Alpar, R. (2003). Uygulamalı Çok Değişkenli İstatistiksel Yöntemlere Giriş 1. Ankara: Nobel Yayın Dağıtım.
• Barış, M. E. (1995). Ankara Kentinde Hava Kirliliği Sorununun Çözümünde Peyzaj Mimarlığı Açısından Alınması Gereken Önlemler. Ankara Üniversitesi, Fen Bilimleri Enstitüsü, Yayımlanmamış Doktora Tezi, Ankara.
• Betts, R. A., Falloon, P. D., Goldewijk, K. K., Ramankutty, N. (2007). Biogeophysical Effects of Land Use on Climate: Model Simulations of Radiative Forcing and Large-Scale Temperature Change. Agricultural and Forest Meteorology, 142(2–4), 216–233. https://doi.org/10.1016/j.agrformet.2006.08.021
• Böhner, J., & Antonić, O. (2009). Land-surface Parameters Specific to Topo-climatology. Developments in Soil Science, 33(C), 195–226. https://doi.org/10.1016/S0166-2481(08)00008-1
• Bokwa, A., Hajto, M. J., Walawender, J. P., Szymanowski, M. (2015). Influence of Diversified Relief on the Urban Heat Island in the City of Kraków, Poland. Theoretical and Applied Climatology, 122(1–2), 365–382. https://doi.org/10.1007/s00704-015-1577-9
• Bounoua, L., Safia, A., Masek, J., Peters-Lidard, C., Imhoff, M. L. (2009). Impact of Urban Growth on Surface Climate: A Case Study in Oran, Algeria. Journal of Applied Meteorology and Climatology, 48(2), 217–231. https://doi.org/10.1175/2008JAMC2044.1
• Carraro, E., Bonetta, S., Palumbo, F., Gilli, G. (2004). Urban and Rural Dewfall, Surface Moisture and Associated Canopy-level Air Temperature and Humidity Measurements for Vancouver, Canada. Annali Dell’Istituto Superiore Di Sanita, 40(1), 117–140.
• Chen, Y., & Wong, N. H. (2006). Thermal Benefits of City Parks. Energy and Buildings, 38(2), 105–120. https://doi.org/10.1016/j.enbuild.2005.04.003
• Cheng, M. T., Tsai, Y. I. (2000). Characterization of Visibility and Atmospheric Aerosols in Urban, Suburban, and Remote Areas. Science of the Total Environment, 263(1–3), 101–114. https://doi.org/10.1016/S0048-9697(00)00670-7
• Chieppa, J., Bush, A., Mitra, C. (2018). Using ‘“Local Climate Zones”’ to Detect Urban Heat Island on Two Small Cities in Alabama. Earth Interactions, 22(16). https://doi.org/10.1175/EI-D-17-0020.1
• Chow, W. T. L., Pope, R. L., Martin, C. A., Brazel, A. J. (2011). Observing and Modeling The Nocturnal Park Cool Island of an Arid City: Horizontal and Vertical Impacts. Theoretical and Applied Climatology, 103(1), 197–211. https://doi.org/10.1007/s00704-010-0293-8
• Çalışkan, O., Türkoğlu, N. (2014). Ankara’da Termal Konfor Koşulların Eğilimi ve Şehirleşmenin Termal Konfor Koşulları Üzerine Etkisi. Coğrafi Bilimler Dergisi, 12(2), 119–132. Çiçek, İ. (2004). Ankara’da Şehirleşmenin Yağış Üzerine Etkisi. Fırat Üniversitesi, Sosyal Bilimler Dergisi, 14(1), 1–17.
• Çiçek, İ. (2005). Ankara’da Şehir ve Kırsal Sıcaklık Farklarındaki Değişiklikler (1970-2002). Fırat Üniversitesi Sosyal Bilimler Dergisi, 15(2), 1–16.
• Çiçek, İ., & Doğan, U. (2005). Ankara’da Şehir Isı Adasının İncelenmesi. Coğrafi Bilimler Dergisi, 3(1), 57–72.
• Çiçek, İ., Yılmaz, E., Türkoğlu, N., Çalışkan, O. (2013). Ankara Şehrinde Yüzey Sıcaklıklarının Arazi Örtüsüne Göre Mevsimsel Değişimi. Uluslararası İnsan Bilimleri Dergisi, 10(1), 621–640.
• Debbage, N. (2013). Sky-view Factor Estimation: A Case Study of Athens, Georgia. Geographical Bulletin - Gamma Theta Upsilon, 54(1), 49–57.
• Doick, K. J., Peace, A., Hutchings, T. R. (2014). The Role of One Large Greenspace in Mitigating London’s Nocturnal Urban Heat Island. Science of the Total Environment, 493, 662–671. https://doi.org/10.1016/j.scitotenv.2014.06.048
• Eastin, M. D., Baber, M., Boucher, A., Di Bari, S., Hubler, R., Stimac-Spalding, B., Winesett, T. (2018). Temporal Variability of the Charlotte (sub) Urban Heat Island. Journal of Applied Meteorology and Climatology, 57(1), 81–102. https://doi.org/10.1175/JAMC-D-17-0099.1
• Elagib, N. A. (2011). Evolution of Urban Heat Island in Khartoum. International Journal of Climatology, 31(9), 1377–1388. https://doi.org/10.1002/joc.2159
• Erol, O. (1985). Genel Klimatoloji. Ankara: Gazi Büro Kitabevi.
• Findell, K. L., Pitman, A. J., England, M. H., Pegion, P. J., Findell, K. L., Pitman, A. J., … Pegion, P. J. (2009). Regional and Global Impacts of Land Cover Change and Sea Surface Temperature Anomalies. Journal of Climate, 22(12), 3248–3269. https://doi.org/10.1175/2008JCLI2580.1
• Gaillard, M. J., Sugita, S., Mazier, F., Trondman, A. K., Broström, A., Hickler, T., … Seppä, H. (2010). Holocene Land-cover Reconstructions for Studies on Land Cover-climate Feedbacks. Climate of the Past, 6(4), 483–499. https://doi.org/10.5194/cp-6-483-2010
• Häntzschel, J., Goldberg, V., Bernhofer, C. (2005). GIS-Based Regionalisation Of Radiation,Temperature And Coupling Measures In Complex Terrain For Low Mountain Ranges. Meteorological Applications, 12(1), 33–42. https://doi.org/10.1017/S1350482705001489
• Hart, M. A., Sailor, D. J. (2009). Quantifying the Influence of Land-use and Surface Characteristics on Spatial Variability in the Urban Heat Island. Theoretical and Applied Climatology, 95(3–4), 397–406. https://doi.org/10.1007/s00704-008-0017-5
• Ibrahim, A. A., Nduka, I. C., Iguisi, E. O., Ati, O. F. (2011). An Assessement of the Impact of Sky View Factor (SVF) on the Micro-climate of Urban Kano. Australian Journal of Basic and Applied Sciences, 5(7), 81–85.
• Jahangir, M. S., Moghim, S. (2019). Assessment of the Urban Heat Island In The City of Tehran Using Reliability Methods. Atmospheric Research, 225, 144–156. https://doi.org/10.1016/J.ATMOSRES.2019.03.038
• Kalnay, E., Cai, M. (2003). Impact of Urbanization and Land-use Change on Climate. Nature, 423(6939), 528-531. https://doi.org/10.1038/nature01675
• Karaca, M., Tayanc, M., Toros, H. (1995). Effects of Urbanization on Climate of Istanbul and Ankara. Atmospheric Environment, 29(23), 3411–3421. https://doi.org/10.1016/1352-2310(95)00085-D
• Kastendeuch, P. P. (2013). A Method to Estimate Sky View Factors from Digital Elevation Models. International Journal of Climatology, 33(6), 1574–1578. https://doi.org/10.1002/joc.3523
• Koçman, A. (1993). Türkiye İklimi. İzmir: Ege Üniversitesi Edebiyat Fakültesi Yayınları No:72.
• Landsberg, H. E. (1981). The Urban Climate. London: Academic Press.
• Lee, S. H., Song, C. K., Baik, J. J., Park, S. U. (2009). Estimation of Anthropogenic Heat Emission in The Gyeong-In Region of Korea. Theoretical and Applied Climatology, 96(3–4), 291–303. https://doi.org/10.1007/s00704-008-0040-6
• Lin, C. Y., Chen, F., Huang, J. C., Chen, W. C., Liou, Y. A., Chen, W. N., Liu, S. C. (2008). Urban Heat Island Effect and Its Impact on Boundary Layer Development and Land-sea Circulation Over Northern Taiwan. Atmospheric Environment, 42(22), 5635–5649. https://doi.org/10.1016/j.atmosenv.2008.03.015
• Mathew, A., Khandelwal, S., Kaul, N. (2016). Spatial and Temporal Variations of Urban Heat Island Effect and The Effect of Percentage Impervious Surface Area and Elevation on Land Surface Temperature: Study of Chandigarh city, India. Sustainable Cities and Society, 26, 264–277. https://doi.org/10.1016/j.scs.2016.06.018
• Melhuish, E., Pedder, M. (1998). Observing an Urban Heat Island by Bicycle. Weather, 53(4), 121–128. https://doi.org/10.1002/j.1477-8696.1998.tb03974.x
• Memon, A. R., Leung, D. Y., Chunho, L. (2008). A Review on The Generation, Determination and Mitigation of Urban Heat Island. Journal of Environmental Sciences, 20, 120–128.
• Nichol, J. E., Fung, W. Y., Lam, K., Wong, M. S. (2009). Urban Heat Island Diagnosis Using ASTER Satellite Images And “In Situ” Air Temperature. Atmospheric Research, 94(2), 276–284. https://doi.org/10.1016/j.atmosres.2009.06.011
• Oke, T. R. (1973). City Size and The Urban Heat Island. Atmospheric Environment (1967), 7(8), 769–779. https://doi.org/10.1016/0004-6981(73)90140-6
• Oke, T. R. (1982). The Energetic Basis of The Urban Heat Island. Quarterly Journal of the Royal Meteorological Society, 108(455), 1–24. https://doi.org/10.1002/qj.49710845502
• Oke, T. R. (2002). Boundary Layer Climates (Secon Edit). Vancouver: Routledge.
• Peng, S., Piao, S., Ciais, P., Friedlingstein, P., Ottle, C., Bréon, F. M., … Myneni, R. B. (2012). Surface Urban Heat Island Across 419 Global Big Cities. Environmental Science and Technology, 46(2), 696–703. https://doi.org/10.1021/es2030438
• Pielke, R. A., Pitman, A., Niyogi, D., Mahmood, R., McAlpine, C., Hossain, F., … de Noblet, N. (2011). Land Use/land Cover Changes and Climate: Modeling Analysis and Observational Evidence. Wiley Interdisciplinary Reviews: Climate Change, 2(6), 828–850. https://doi.org/10.1002/wcc.144
• Qaid, A., Lamit, H. Bin, Ossen, D. R., Rasidi, M. H. (2018). Effect of The Position of The Visible Sky in Determining The Sky View Factor on Micrometeorological and Human Thermal Comfort Conditions in Urban Street Canyons. Theoretical and Applied Climatology, 131(3–4), 1083–1100. https://doi.org/10.1007/s00704-016-2023-3
• Qiao, Z., Tian, G., Zhang, L., Xu, X. (2014). Influences of Urban Expansion on Urban Heat Island in Beijing During 1989–2010. Advances in Meteorology, 2014, 1–11. https://doi.org/10.1155/2014/187169
• Sanır, F. (1948). Ankara ve Çevresinin İklimi Hakkında. Ankara Üniversitesi Dil ve Tarih-Coğrafya Fakültesi Dergisi, 4, 291–318.
• Schatz, J., Kucharik, C. J., Schatz, J., Kucharik, C. J. (2014). Seasonality of the Urban Heat Island Effect in Madison, Wisconsin. Journal of Applied Meteorology and Climatology, 53(10), 2371–2386. https://doi.org/10.1175/JAMC-D-14-0107.1
• Singh, P., Kikon, N., Verma, P. (2017). Impact of Land Use Change and Urbanization on Urban Heat Island in Lucknow City, Central India. A Remote Sensing Based Estimate. Sustainable Cities and Society, 32, 100–114. https://doi.org/10.1016/j.scs.2017.02.018
• Stocker, T. F., Qin, D., Plattner, G.-K., Tignor, M., Allen, S. K., Boschung, J., … Midgley, P. M. (2014). Climate Change 2013 - The Physical Science Basis. Climate Change 2013- The Physical Science Basis. Cambridge, United Kingdom and New York, NY, USA: Cambridge University Press. https://doi.org/10.1017/cbo9781107415324
• Streutker, D. R. (2002). A Remote Sensing Study of the Urban Heat Island of Houston, Texas. International Journal of Remote Sensing, 23(13), 2595–2608. https://doi.org/10.1080/01431160110115023
• Tomlinson, C. J., Chapman, L., Thornes, J. E., Baker, C. J. (2011). Including The Urban Heat Island in Spatial Heat Health Risk Assessment Strategies: A Case Study for Birmingham, UK. International Journal of Health Geographics, 10(1), 14p. https://doi.org/10.1186/1476-072X-10-42
• Türkiye İstatistik Kurumu (TÜİK, 2019). İllere Göre Adrese Dayalı Nüfus Miktarları 08.07.2019 tarihinde www.tuik.gov.tr adresinden edinilmiştir.
• Türkoğlu, N., Çalışkan, O., Çiçek, İ., Yılmaz, E. (2012). Şehirleşmenin Biyoklimatik Koşullara Etkisinin Ankara Ölçeğinde İncelenmesi. Uluslararası İnsan Bilimleri Dergisi, 9(1), 932–955.
• Voogt, J. A., Oke, T. R. (1998). Radiometric Temperatures of Urban Canyon Walls Obtained From Vehicle Traverses. Theoretical and Applied Climatology, 60(1–4), 199–217. https://doi.org/10.1007/s007040050044
• World City Populations (WCP, 2019). Dünyadaki en kalabalık şehir nüfusları 08.07.2019 tarihinde http://worldpopulationreview.com/world-cities/ adresinden edinilmiştir.
• Yamashita, S. (1996). Detailed Structure of Heat Island Phenomena From Moving Observations From Electric Tram-cars in Metropolitan Tokyo. Atmospheric Environment, 30(3), 429–435. https://doi.org/10.1016/1352-2310(95)00010-0
• Yang, G., Bowling, L. C., Cherkauer, K. A., Pijanowski, B. C., Niyogi, D. (2010). Hydroclimatic Response of Watersheds to Urban Intensity: An Observational and Modeling-Based Analysis for the White River Basin, Indiana. Journal of Hydrometeorology, 11(1), 122–138. https://doi.org/10.1175/2009JHM1143.1
• Yılmaz, E. (2016). Uydu Görüntüleri ile Adana Yüzey Isı Adası. Coğrafi Bilimler Dergisi. 13 (2), 115-138.
• Yüksel, Ü. D., Yılmaz, O. (2008). Ankara Kentinde Kentsel Isı Adası Etkisinin Yaz Aylarında Uzaktan Algılama ve Meteorolojik Gözlemlere Dayalı Olarak Saptanması ve Değerlendirilmesi. Gazi Üniv. Müh. Mim. Fak. Der, 23(4), 937–952.
• Yüksel, Ü., Kuntay, O. (2009). Effects of Urbanization on the Climate of Ankara. Içinde 5th Urban Research Symposium: Cities and Climate Change: Responding to an Urgent Agenda Marseille,. Marseille, France.
• Zhang, D. L., Shou, Y. X., Dickerson, R. R., Chen, F. (2011). Impact of Upstream Urbanization on The Urban Heat Island Effects Along The Washington-Baltimore Corridor. Journal of Applied Meteorology and Climatology, 50(10), 2012–2029. https://doi.org/10.1175/JAMC-D-10-05008.1
• Zheng, Z., Ren, G., Wang, H., Dou, J., Gao, Z., Duan, C., … Yang, Y. (2018). Relationship Between Fine-Particle Pollution and the Urban Heat Island in Beijing, China: Observational Evidence. Boundary-Layer Meteorology, 169(1), 93–113. https://doi.org/10.1007/s10546-018-0362-6
• Zhou, D., Zhao, S., Liu, S., Zhang, L., Zhu, C. (2014). Surface Urban Heat Island in China’s 32 Major Cities: Spatial Patterns and Drivers. Remote Sensing of Environment, 152, 51–61. https://doi.org/10.1016/j.rse.2014.05.017
• Zhou, H. M., Ge, W. Q., Yang, H. Q., Liu, J., Yang, Y. L. (2015). Improving The Effect of Greening on Heat Island in Urban Residential Districts Based on Remote Sensing and GIS analysis. Journal of Tropical Meteorology, 21(3), 303–310. https://doi.org/10.16555/j.1006-8775.2015.03.010