Maulana, Muhammad Ridho (2019) Analisis Perubahan Lingkungan Fisik Lahan Akibat Bencana Tanah Tanah Longsor Menggunakan Citra Satelit Sentinel (Studi Kasus: Tanah Longsor di Kabupaten Banyuwangi). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada tanggal 22 Juni 2018 di Kecamatan Songgon, Banyuwangi telah terjadi tanah longsor yang mengakibatkan adanya perubahan kondisi lingkungan fisik lahan di wilayah terdampak bencana, yaitu di Kecamatan Songgon dan Kecamatan Singojuruh. Identifikasi perubahan lingkungan fisik lahan dapat dilakukan menggunakan citra fusi (gabungan) dari citra Sentinel-1 (sistem radar) dan citra Sentinel-2 (sistem optis). Citra fusi mengintegrasikan kelebihan-kelebihan dari citra asal, dimana citra Sentinel-1 akan menonjolkan topografi bentuk bumi sedangkan citra Sentinel-2 memberikan pewarnaan pada objek. Analisis perubahan lingkungan fisik lahan akibat tanah longsor dilihat berdasarkan variabel yang mempengaruhi terjadinya gerakan tanah, meliputi kemiringan lereng, jenis tanah, geologi, curah hujan, dan penggunaan lahan dengan pengolahan secara Sistem Informasi Geografis (SIG). Klasifikasi tutupan lahan dibagi menjadi lima kelas yaitu badan air, pemukiman, hutan/kebun, semak belukar, dan sawah/tegalan. Hasil perubahan tutupan lahan menunjukkan bahwa lahan sawah/tegalan mengalami peningkatan paling banyak, dimana perubahan terbesar berasal dari lahan hutan/kebun. Salah satu perubahan lahan tersebut terjadi di lokasi terjadinya tanah longsor yang berada di kawasan Pegunungan Ijen, Kecamatan Songgon. Bencana alam menjadi faktor penyebab terjadinya perubahan lingkungan fisik lahan. Lokasi tanah longsor sendiri berada di area dengan potensi longsor tinggi. Saat kejadian, pada tiga hari sebelumnya terjadi hujan berturut-turut yang membuat air meresap ke dalam batuan dan tanah sehingga membuat tanah dalam keadaan jenuh air dan massanya bertambah. Kemiringan lereng yang sangat curam menyebabkan massa tanah bergerak meluncur ke bawah dengan cepat.
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A landslide occured on 22nd June 2018 in Songgon, Banyuwangi which caused a change in the physical environment in the affected area, that are in Songgon and Singojuruh. Identification of changes in land physical environment is carried out using fusion (combined) images of Sentinel-1 (radar system) images and Sentinel-2 (optical system) images. Fusion images integrate the advantages of the original image, where Sentinel-1 images will highlight the shape of the earth's topography while Sentinel-2 images give coloring to objects. Analysis of changes in the physical environment of land due to landslides is seen based on the variables that influence the occurrence of soil movements, including slope, soil texture, geology, rainfall, and land use by processing Geographic Information Systems (GIS). Classification of land cover in Sentinel fusion images is divided into five classes, there are water bodies, settlements, forests/gardens, shrubs, and rice fields / moor. Judging from the results of land cover between before and after the occurrence of landslides, it shows that forest/garden land is the most reduced land cover where the biggest change is to become rice fields/moor. The results of changes in land cover indicate that rice fields / moorlands have the most increase, where the biggest changes come from forest / garden land. One of the land changes occurred at the location of the landslide in the Ijen Mountains area, Songgon. Natural disasters are a factor causing changes in the physical environment of the land. The location of the landslide itself is in an area with high potential for landslides. At the time of the incident, on three previous days there were successive rains which made the water seep into the rocks and soil, making the soil saturated with water and increasing its mass. A very steep slope causes the ground mass to move down quickly.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSG 551.307 Mau a-1 2019 |
| Uncontrolled Keywords: | Citra Sentinel, Lingkungan Fisik Lahan, Tanah Longsor |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G70.212 ArcGIS. Geographic information systems. G Geography. Anthropology. Recreation > G Geography (General) > G70.217 Geospatial data G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | Faculty of Civil Engineering and Planning > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Ridho Maulana |
| Date Deposited: | 12 Dec 2023 03:04 |
| Last Modified: | 12 Dec 2023 03:04 |
| URI: | http://repository.its.ac.id/id/eprint/65090 |
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