Model Penurunan Tinggi Muka Air Tanah Setelah Kejadian Hujan di Lokasi Sistem Peringatan Dini Longsor di Kampung Jatiradio, Desa Cililin, Kecamatan Cililin, Kabupaten Bandung Barat

Landslide events that have occurred  in Jatiradio, Cililin Village, Cililin District, West Bandung Regency triggered the installation of a Landslide Early Warning System (LEWS). The equipmentl transmits data such as rainfall and ground water level for every hour which is detected from rain gauge sensors and pressure transducers. The relationship between rainfall and ground water level is important to understand in order to know the fluctuttion patterns that trigger landslides. Therefore, mathematical model of the decline in groundwater level every time after the rainfall in Jatiradio, Cililin Village, Cililin District, West Bandung Regency during the 2019 rainy season was made. Thus, it can be seen the relationship between rainfall patterns and water level fluctuations in certain rainfall periods.The method used in producing the model is a regression model using spreedsheet software. Regression equations and coefficients of determination were obtained to analyze the relationship of ground water level to rainfall. The results of mathematical modeling between ground level I (23-24 February 2019) and II (24-25 February 2019) are linear to rainfall, except for the decline in groundwater level III which occurred on February 25-28, 2019 which shows exponential relationship, meaning that a rapid decline in groundwater level. The regression model equation obtained for each groundwater level decrease is  with R² = 0.9631;  with R² = 0.9988;  with R2 = 0.9903. Keywords: Model, Landslide, Landslide Early Warning System, PreparednessAbstrakKejadian bencana longsor yang pernah terjadi di Kampung Jatiradio, Desa Cililin, Kecamatan Cililin, Kabupaten Bandung Barat mendorong dipasangnya alat Landslide Early Warning System (LEWS). Alat tersebut mengirimkan data seperti curah hujan dan tinggi muka air tanah setiap satu jam yang dideteksi dari sensor penakar hujan dan pressure transducer. Hubungan antara curah hujan dan tinggi muka air tanah penting untuk diketahui agar dapat diketahui pola fluktuasi yang memicu ...