This article presents a geographic information system (GIS)-based artificial neural network (GANN) model for flood susceptibility assessment of Keelung City, Taiwan. Various factors, including elevation, slope angle, slope aspect, flow accumulation, flow direction, topographic wetness index (TWI), drainage density, rainfall, and normalized difference vegetation index, were generated using a digital elevation model and LANDSAT 8 imagery. Historical flood data from 2015 to 2019, including 307 flood events, were adopted for a comparison of flood susceptibility. Using these factors, the GANN model, based on the back-propagation neural network (BPNN), was employed to provide flood susceptibility. The validation results indicate that a satisfactory result, with a correlation coefficient of 0.814, was obtained. A comparison of the GANN model with those from the SOBEK model was conducted. The comparative results demonstrated that the proposed method can provide good accuracy in predicting flood susceptibility. The results of flood susceptibility are categorized into five classes: Very low, low, moderate, high, and very high, with coverage areas of 60.5%, 27.4%, 8.6%, 2.5%, and 1%, respectively. The results demonstrate that nearly 3.5% of the study area, including the core district of the city and an exceedingly populated area including the financial center of the city, can be categorized as high to very high flood susceptibility zones.
Masyarakat Indonesia memiliki kebiasaan pola hidup berbeda-beda, banyak individu menginginkan kondisi praktis yang berdampak pada pola hidup sehat. Tujuan penelitian untuk mengetahui tingkat pengetahuan perilaku hidup sehat dan pemanfaatan Puskesmas di Kecamatan Prambanan, Kabupaten Klaten. Penelitian ini menggunakan metode deskriptif kuantitatif, data berasal dari kuesoner hasil wawancara responden yang tersebar di Kecamatan Prambanan. Populasi penelitian yaitu seluruh persil bangunan pemukiman berdasarkan interpretasi citra Google Maps tahun 2016 dan survei lapangan. Populasi berjumlah 20.943 bangunan dan sebanyak 2.235 merupakan sampel penelitian. Hasil penelitian menunjukkan masyarakat memahami mengenai manfaat minum air putih yaitu total 88,2% dari persentase katagori ‘sangat paham’ dan ‘paham’, kebersihan makanan sebesar 85,6%, lokasi membuang sampah yaitu 84,7% diikuti pengetahuan manfaat membersihkan lingkungan sebesar 84,2%, dan waktu makan yang baik 82,3%. Pengetahuan mengenai manfaat menguras bak mandi sebesar 76,9%, mencuci tangan sebesar 75,9%, dan olahraga rutin sebesar 53,3%. Pemahaman tentang penggunaan air bersih tergolong baik dan ketersediaan septictank mencapai 96,5% serta kondisi kakus yang sehat dengan 79,5% menjadi perwujudan dari pengetahuan perilaku hidup sehat masyarakat. Pemanfaatan puskesmas oleh masyarakat di Kecamatan Prambanan yaitu sebesar 83,3% masyarakat sudah memanfaatkan fasilitas puskesmas terutama untuk berobat sebanyak 69,1%. Masyarakat Kecamatan Prambanan yaitu 63,6% menerima penyuluhan kesehatan dan sebanyak 81,6% masyarakat telah memiliki jaminan kesehatan.
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