Urban Heat Island Effect of Large-Scale Residential Areas: A Spatiotemporal Analysis of Etimesgut District in Ankara

Büşra Hilal Kutlu Aydın; Burcu Ozuduru

Makale detayları

Urban Heat Island Effect of Large-Scale Residential Areas: A Spatiotemporal Analysis of Etimesgut District in Ankara

Yazarlar:

Büşra Hilal Kutlu Aydın | Burcu Ozuduru

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Geographical Information Systems (GIS) in Planning

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.435-463

Belge Tipi:

Makale

Yayın Tarihi:

3/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343825

pISSN:

2147-3129

Anahtar kelimeler:

Özet:

 Urban heat islands UHI disrupt the environmental balance in urban areas. The rate and impact of this formation are intensified by the increase in impervious surfaces, along with urban sprawl and land use changes. This increase reduces natural water absorption, causing heat retention and airflow restriction. Changes in land cover alter surface albedo, affecting energy interactions between the atmosphere and the surface, leading to local climate change. Remote detection methods are important tools for data gathering and assessing UHIs. This study uses a spatiotemporal analysis to examine the relationship between urban development and UHI change between 2005 and 2021, focusing on the Etimesgut district, located on the western development axis of Ankara, where land use changed from agricultural and public land to large-scale residential areas in the last three decades, in particular along with the development of mass housing by Housing Development Agency. Therefore, the district was under pressure for urban growth and mainly developed by transferring public property to private property. The analysis explains how urban sprawl increases land surface temperature LST, contributing to the formation of UHIs. This study shows that in the Etimesgut district, where the built-up area has increased significantly between 2005 and 2021, from 9,040 ha to 12,934 ha, showing a 43.08 increase, there has been an increase in the LST by about four C, rising from 43.33C to 47.02C in July. Satellite imagery-based findings indicate that the replacement of agricultural land by built-up areas accelerates the rise in temperatures in the region by weakening natural cooling mechanisms. This study intends to inform urban policy and policy development and offers an evidence-based approach using the Etimesgut district in Ankara as a case study. Urban development policies should cover climate-prone strategies and thermal governance to mitigate the UHI effects when barren or agricultural land is replaced with impervious surfaces of large-scale residential areas.

 Urban heat islands UHI disrupt the environmental balance in urban areas. The rate and impact of this formation are intensified by the increase in impervious surfaces, along with urban sprawl and land use changes. This increase reduces natural water absorption, causing heat retention and airflow restriction. Changes in land cover alter surface albedo, affecting energy interactions between the atmosphere and the surface, leading to local climate change. Remote detection methods are important tools for data gathering and assessing UHIs. This study uses a spatiotemporal analysis to examine the relationship between urban development and UHI change between 2005 and 2021, focusing on the Etimesgut district, located on the western development axis of Ankara, where land use changed from agricultural and public land to large-scale residential areas in the last three decades, in particular along with the development of mass housing by Housing Development Agency. Therefore, the district was under pressure for urban growth and mainly developed by transferring public property to private property. The analysis explains how urban sprawl increases land surface temperature LST, contributing to the formation of UHIs. This study shows that in the Etimesgut district, where the built-up area has increased significantly between 2005 and 2021, from 9,040 ha to 12,934 ha, showing a 43.08 increase, there has been an increase in the LST by about four C, rising from 43.33C to 47.02C in July. Satellite imagery-based findings indicate that the replacement of agricultural land by built-up areas accelerates the rise in temperatures in the region by weakening natural cooling mechanisms. This study intends to inform urban policy and policy development and offers an evidence-based approach using the Etimesgut district in Ankara as a case study. Urban development policies should cover climate-prone strategies and thermal governance to mitigate the UHI effects when barren or agricultural land is replaced with impervious surfaces of large-scale residential areas.

 Urban heat islands UHI disrupt the environmental balance in urban areas. The rate and impact of this formation are intensified by the increase in impervious surfaces, along with urban sprawl and land use changes. This increase reduces natural water absorption, causing heat retention and airflow restriction. Changes in land cover alter surface albedo, affecting energy interactions between the atmosphere and the surface, leading to local climate change. Remote detection methods are important tools for data gathering and assessing UHIs. This study uses a spatiotemporal analysis to examine the relationship between urban development and UHI change between 2005 and 2021, focusing on the Etimesgut district, located on the western development axis of Ankara, where land use changed from agricultural and public land to large-scale residential areas in the last three decades, in particular along with the development of mass housing by Housing Development Agency. Therefore, the district was under pressure for urban growth and mainly developed by transferring public property to private property. The analysis explains how urban sprawl increases land surface temperature LST, contributing to the formation of UHIs. This study shows that in the Etimesgut district, where the built-up area has increased significantly between 2005 and 2021, from 9,040 ha to 12,934 ha, showing a 43.08 increase, there has been an increase in the LST by about four C, rising from 43.33C to 47.02C in July. Satellite imagery-based findings indicate that the replacement of agricultural land by built-up areas accelerates the rise in temperatures in the region by weakening natural cooling mechanisms. This study intends to inform urban policy and policy development and offers an evidence-based approach using the Etimesgut district in Ankara as a case study. Urban development policies should cover climate-prone strategies and thermal governance to mitigate the UHI effects when barren or agricultural land is replaced with impervious surfaces of large-scale residential areas.

 Kentsel ısı adaları UHI, kentsel alanlarda çevresel dengeyi bozmaktadır. Bu oluşumun hızı ve etkisi, geçirimsiz yüzeylerin artışı, kentsel yayılma ve arazi kullanım değişiklikleri ile artmaktadır. Bu artış, doğal su emilimini azaltarak ısı birikimine ve hava akışının kısıtlanmasına neden olmaktadır. Arazi örtüsündeki değişiklikler, yüzey albedosunu değiştirerek atmosfer ile yüzey arasındaki enerji etkileşimlerini etkilemekte ve yerel iklim değişikliğine yol açmaktadır. Uzaktan algılama yöntemleri, veri toplama ve UHIleri değerlendirme için önemli araçlardır. Bu çalışma, 2005 ve 2021 yılları arasında kentsel gelişim ile UHI değişimi arasındaki ilişkiyi, son yirmi yılda arazi kullanımının tarımdan büyük ölçekli konut alanlarına dönüştüğü Etimesgut ilçesine odaklanarak mekânsal ve zamansal bir analizle incelemektedir. Analiz, kentsel yayılmanın arazi yüzeyi sıcaklığını LST nasıl artırdığını ve UHI oluşumuna nasıl katkıda bulunduğunu açıklamaktadır. Çalışmamız, 2005 ile 2021 yılları arasında yapılaşmış alanların 9.040 hektardan 12.934 hektara çıkarak 43,08 oranında artış gösterdiği Etimesgut ilçesinde, Temmuz ayında arazi yüzeyi sıcaklığında yaklaşık 4 Clik bir artış olduğunu ve sıcaklıkların 43,33 Cden 47,02 Cye yükseldiğini göstermektedir. Uydu görüntülerine dayalı bulgular, tarım alanlarının yapılaşmış alanlarla değiştirilmesinin doğal soğutma mekanizmalarını zayıflatarak bölgedeki sıcaklık artışını hızlandırdığını ortaya koymaktadır. Çalışmamız, kentsel politika ve karar alma süreçlerini bilgilendirmeyi amaçlamakta ve Ankaranın Etimesgut ilçesini bir vaka çalışması olarak kullanarak kanıta dayalı bir yaklaşım sunmaktadır. Kentsel gelişim politikaları, çıplak veya tarım alanlarının geçirimsiz yüzeylere sahip büyük ölçekli konut alanlarıyla değiştirildiği durumlarda, UHI etkilerini azaltmak için iklime duyarlı stratejiler ve termal yönetim politikalarını içermelidir.

Makale detayları

Urban Heat Island Effect of Large-Scale Residential Areas: A Spatiotemporal Analysis of Etimesgut District in Ankara

Yazarlar:

Büşra Hilal Kutlu Aydın | Burcu Ozuduru

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Geographical Information Systems (GIS) in Planning

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.435-463

Belge Tipi:

Makale

Yayın Tarihi:

3/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343825

pISSN:

2147-3129

Climate change

Urban Heat Island (UHI)

Land Surface Temperature (LST)

urban growth

Land Use Change.İklim Değişikliği

Kentsel Isı Adası (UHI)

Arazi Yüzey Sıcaklığı (LST)

Kentsel Büyüme

Arazi Kullanım Değişikliği.

Sayı

Makale detayları

Yazarlar: Büşra Hilal Kutlu Aydın | Burcu Ozuduru

Yayıncı: Bitlis Eren University

Ana Başlıklar: Geographical Information Systems (GIS) in Planning

Dergi: Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.435-463

Belge Tipi: Makale

Yayın Tarihi: 3/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001343825

pISSN: 2147-3129

Sayı

Yazarlar:

Büşra Hilal Kutlu Aydın | Burcu Ozuduru

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Geographical Information Systems (GIS) in Planning

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.435-463

Belge Tipi:

Makale

Yayın Tarihi:

3/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343825

pISSN:

2147-3129