Pengaruh Ruang Terbuka Hijau (RTH) Terhadap Konsentrasi Gas Nitrogen Dioksida (NO2) di Indonesia Berbasis Citra Satelit

Irawandani, Tia Dwi (2017) Pengaruh Ruang Terbuka Hijau (RTH) Terhadap Konsentrasi Gas Nitrogen Dioksida (NO2) di Indonesia Berbasis Citra Satelit. Masters thesis, Institut Teknologi Speluluh Nopember.

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Abstract

Kepadatan kota-kota di Indonesia baik di wilayah dataran tinggi ataupun rendah semakin meningkat. Kondisi tersebut berdampak pada perubahan ruang terbuka hijau menjadi lahan terbangun yang memicu meningkatnya produksi polusi dan udara panas. Tujuan dari penelitian ini adalah untuk menentukan pengaruh ruang terbuka hijau (RTH) terhadap gas Nitrogen dioksida (NO2) troposfer, RTH terhadap suhu permukaan, dan suhu permukaan terhadap NO2 troposfer di tiga puluh kota di Indonesia dari tahun 2007 hingga 2016. Pengolahan data pada penelitian ini berbasis citra satelit. Adapun citra satelit yang digunakan adalah Terra MODIS untuk olah data suhu permukaan bumi, GOME MetOP-A untuk olah data NO2 troposfer, dan Google Earth untuk olah data ruang terbuka hijau. Analisis statistika yang digunakan adalah Structural Equation Model- Partial Least Square (SEM-PLS) dengan variabel indikator berupa prosentase ruang terbuka hijau, suhu permukaan bumi, konsentrasi NO2, elevasi kota, dan posisi kota terhadap garis khatulistiwa. Rata-rata setipa tahunnya ruang terbuka hijau mengalami penurunan sebesar 14.65%, konsentrasi NO2 troposfer mengalami kenaikan 18.49%, dan suhu mengalami kenaikan 0.7%. RTH berpengaruh signifikan terhadap penurunan suhu permukaan dan NO2 troposfer dengan koefisien pengaruh secara berurutan sebesar - 0.0686 dengan R2= 21%. Semakin luas RTH maka suhu permukaan dan NO2 troposfer semakin kecil. Variabel suhu berpengaruh signifikan dan berbanding lurus terhadap NO2 troposfer dengan koefisien sebesar –0.557 dan R2 sebesar 36%. Tiga variabel lain yang mempengaruhi NO2 troposfer secara signifikan adalah suhu permukaan dan posisi kota terhadap khatulistiwa yang berbanding lurus serta elevasi yang berbanding terbalik terhadap NO2 troposfer. Variabel lain yang berpengaruh signifikan terhadap suhu permukaan adalah posisi dan elevasi kota. Elevasi berbanding terbalik dan posisi garis lintang terhadap khatulistiwa berbanding lurus terhadap suhu permukaan perkotaan. ========================================================================================================= Density cities both of high and low-elevated in Indonesia were increasing. The condition has impacted on the change of green open spaces into building areas that triggered the increase of pollution production. The purposes of this study were determined the effect of green open spaces (GOS) on the troposphere Nitrogen dioxide (NO2), GOS to surface temperature, and surface temperature to NO2 troposphere in thirty cities in Indonesia from 2007 to 2016. Data processing in this study is based on satellite imagery. The satellites imagery used were Terra MODIS for Earth surface temperature data, MetOP-A GOME for NO2 troposphere data, and Google Earth for GOS data. Statistical analysis used is Structural Equation Model-Partial Least Square (SEM-PLS) with indicator variables were percentage of GOS, earth surface temperature, NO2 concentration, elevation, and city position toward equator. The average annual rate of GOS decreased by 14.65%, NO2 troposphere concentration increased by 18.49%, and the temperature increased 0.7%. GOS had a significant effect on the decrease of NO2 troposphere and surface temperature in sequence are coefficient -0.068, R2= 21% and -0.557 R2= 36%, . The higher GOS, the surface temperature and NO2 troposphere were getting smaller. The temperature variable had significant effect and was directly proportional to NO2 troposphere. Other variables that significantly affect NO2 troposphere were surface temperatures and city positions against equator that were directly proportional and elevations that was inversely proportional to NO2 troposphere. Other variables that had significant effect on surface temperature are position and elevation of city. Elevation was inversely proportional and the position of latitude towards the equator was directly proportional to the urban surface temperature. Keywords: proportion of GOS, satellite imagery, Structural Equation Model - Partial Least Square, urban area

Item Type: Thesis (Masters)
Uncontrolled Keywords: Indonesia, land cover change, satellite image, surface temperature
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions: Faculty of Civil Engineering and Planning > Environment Engineering > 25101-(S2) Master Thesis
Depositing User: IRWANDANI TIA DWI
Date Deposited: 23 Mar 2018 02:54
Last Modified: 23 Mar 2018 02:54
URI: http://repository.its.ac.id/id/eprint/49875

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