Analisis Perubahan Distribusi Urban Heat Island (UHI) di Kota Surabaya Menggunakan Citra Satelit Landsat Multitemporal

Pratiwi, Arik Yumna (2020) Analisis Perubahan Distribusi Urban Heat Island (UHI) di Kota Surabaya Menggunakan Citra Satelit Landsat Multitemporal. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Surabaya merupakan kota terbesar kedua di Indonesia setelah Jakarta, dimana jumlah penduduk kota Surabaya setiap tahunnya selalu meningkat. Tren peningkatan jumlah penduduk di Kota Surabaya dapat dilihat dari data jumlah penduduk tahun 2010-2017, yang selalu mengalami peningkatan dengan laju pertumbuhan penduduk sebesar 0,52%. Peningkatan populasi penduduk di wilayah perkotaan dapat meningkatkan konsumsi energi untuk menunjang aktivitas manusia, kemudian penggunaan lahan akan bergeser dari keperluan pertanian menjadi keperluan tempat tinggal dan sebagainya. Perubahan tutupan lahan ini akan berdampak pada berubahnya kondisi iklim dan cuaca di kawasan perkotaan sehingga menyebabkan terjadinya fenomena Urban Heat Island (UHI). Pada penelitian ini akan dianalisis perubahan distribusi Urban Heat Island (UHI) di Kota Surabaya pada tahun 2002, 2014, dan 2019 menggunakan Citra Landsat 7 (ETM+) dan Citra Landsat 8 (OLI/TIRS). Pertama-tama dilakukan perhitungan Land Surface Temperature (LST) dengan metode Single-Chanel Algorithm, kemudian dilakukan analisis distribusi UHI dengan metode Ambang Batas dan Hot Spot Analysis. Hasilnya didapatkan nilai Land Surface Temperature (LST) rata-rata Kota Surabaya untuk tahun 2002, 2014, dan 2019 secara berurutan sebesar 29,094°C; 26,889°C; dan 27,130°C dimana hasil uji korelasi Pearson Product Moment antara Land Surface Temperature (LST) dengan suhu lapangan yang diperoleh dari stasiun cuaca, hasilnya nilai koefisien korelasi (Rxy) sebesar 0,449; artinya memiliki korelasi cukup. Terakhir, dari peta distribusi Urban Heat Island (UHI) metode Ambang Batas, luas area yang terdampak UHI selalu mengalami penurunan dari tahun 2002, 2014, dan 2019 dengan luas penurunan masing-masing sebesar 0,760 km2 dan 7,995 km2. Sedangkan dari peta distribusi Urban Heat Island (UHI) metode Hot Spot Analysis (Getis-Ord Gi*), luas area yang terdampak UHI juga selalu mengalami penurunan dengan luas penurunan masing-masing sebesar 2,027 km2 dan 31,168 km2. ===================================================================================================== Surabaya is the second largest city in Indonesia after Jakarta, where the human population is increasing every year. The increasing population trend in the city of Surabaya can be seen from the population data for 2010-2017, which always increase with a population growth rate of 0.52%. The increasing population in urban areas can increase energy consumption to support human activities, thus land use will change from agricultural needs to residential needs and so on. Changes in land cover will have an impact on changing climate and weather conditions in urban areas, causing the phenomenon of Urban Heat Island (UHI). This study analized distribution changes of Urban Heat Island (UHI) in Surabaya from 2002, to 2014 and 2019 using Landsat 7 (ETM +) and Landsat 8 (OLI / TIRS) imagery. First the Land Surface Temperature (LST) was calculated using the Single-Chanel Algorithm method, then the UHI distribution analysis was carried out using the threshold method and Hot Spot Analysis method. As a result, the average Land Surface Temperature values of Surabaya City for 2002, 2014 and 2019 were 29.094°C; 26.889°C; and 27.130°C, respectively. Pearson Product Moment correlation test was performed between Land Surface Temperature (LST) and field temperature obtained from weather stations, the result of the correlation coefficient (Rxy) was 0.449; it means to have a medium correlation. Finally, from the Urban Heat Island (UHI) distribution map with threshold method, the area that affected by UHI always decreased from 2002, 2014, and 2019 with an area of 0.760 km2 and 7.995 km2, respectively. Also from the Urban Heat Island (UHI) distribution map with Hot Spot Analysis (Getis-Ord Gi*) method, the area that affected by UHI also always decreased from 2002, 2014, and 2019 with an area of 2.027 km2 and 31.168 km2, respectively.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Ambang Batas, Hot Spot Analysis, Land Surface Temperature, Single Chanel Algorithm, Urban Heat Island , Hot Spot Analysis, Land Surface Temperature, Single Chanel Algorithm, Threshold, Urban Heat Island
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > G Geography (General) > G70.217 Geospatial data
G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing
Divisions: Faculty of Civil Engineering and Planning > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User: Arik Yumna Pratiwi
Date Deposited: 12 Aug 2020 07:25
Last Modified: 12 Aug 2020 07:25
URI: https://repository.its.ac.id/id/eprint/77604

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