ANALISIS SPASIOTEMPORAL INDEKS KEKRITISAN LINGKUNGAN MENGGUNAKAN ALGORITMA LAND SURFACE TEMPERATURE DAN NORMALIZED DIFFERENCE VEGATATION INDEX DI KOTA MAKASSAR

Feri Fadlin, Suparjo Suparjo, Adha Mashur Sajiah, Natalis Ransi, Jumadil Nangi

Abstract


Pembangunan infrastruktur dan jumlah penduduk yang terus meningkat di wilayah Kota Makassar memberikan dampak negatif berupa penurunan kualitas lingkungan dan peningkatan suhu udara yang dikenal dengan fenomena Urban Heat Island (UHI). Peningkatan suhu udara akibat fenomena UHI berdampak pada kualitas hidup manusia, kesehatan, kenyamanan masayarakat kota, dan peningkatan kekritisan lingkungan/Environmental Criticality Index (ECI). Penelitian ini bertujuan untuk menganalisis secara spasial dan multitemporal ECI di Kota Makassar menggunakan algoritma Land Surface Temperature dan Normalized Difference Vegetation Index. Penelitian ini menggunakan citra satelit Landsat 8 OLI/TIRS perekaman tahun 2013 – 2018 path 114 row 64 untuk menghitung suhu permukaan dan kerapatan vegetasi menggunakan algoritma Land Surface Temperature (LST) dan Normalized Difference Vegetation Index (NDVI). Indeks kekritisan lingkungan dihitung dan dianalisis menggunakan persamaan deduktif ECI dan pendekatan Sistem Informasi Geografis (SIG). Hasil penelitian menunjukkan adanya tren peningkatan LST pada wilayah dengan tutupan lahan bangunan dan indeks kerapatan vegetasi NDVI rendah dan membentuk formasi pulau bahang perkotaan (UHI). Hasil analisis ECI juga menunjukkan adanya tren peningkatan area lahan teridentifikasi kritis di Kota Makassar yaitu sebesar 20,69 Km2 dalam rentang waktu 2013 - 2018.

Kata kunci; Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI), Environmental Criticality Index (ECI), Sistem Informasi Geografis (SIG)


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