Widodo, Bagas Tri (2016) Visualisasi Perubahan Volume dan Elevasi Permukaan Lumpur dengan Citra Satelit Resolusi Tinggi Temporal untuk Monitoring Lumpur Sidoarjo. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sejak awal terjadinya bencana lumpur Sidoarjo pada 29 Mei 2006 silam, telah terjadi lebih dari 10 kali jebolan tanggul penahan lumpur. Yang terakhir terjadi pada akhir tahun 2014 lalu, mengakibatkan rumah warga yang berada di Desa Gempolsari, Kecamatan Tanggulangin, terendam lumpur. Untuk mencegah hal yang sama terulang kembali, maka perlu dilakukan monitoring untuk mengetahui pola persebaran lumpur dan elevasinya yang berada di dalam tanggul penahan. Dengan menggunakan citra satelit resolusi tinggi WorldView-2 bulan Agustus 2014 dan Juli 2015, maka tutupan lumpur dapat diklasifikasikan menjadi 4 kelas berbeda, yaitu Air Berlumpur, Lumpur Basah, Lumpur Mulai Mengering, dan Lumpur Kering.
Menurut hasil pengolahan data observasi lapangan menggunakan GPS geodetik metode kinematik, diketahui bahwa volume total lumpur di dalam tanggul utama pada bulan Maret 2014 adalah 44.039.123,365 m3, dan bulan Juli 2015 sebesar 47.646.879,058 m3. Berdasarkan hasil pemodelan 3 dimensi permukaan lumpur, aliran lumpur pada bulan Maret 2014 cenderung mengarah ke utara. Sedangkan pada bulan Juli 2015 aliran lumpur lebih terkonsentrasi di dekat pusat semburan, membuat tanah bagian bawah mengalami sledding dan penurunan. Dengan demikian, permukaan lumpur menjadi terlihat seperti kaldera atau fitur kawah gunung lumpur. Dan sampai dengan bulan Juli 2015, tutupan lumpur didominasi oleh klasifikasi Lumpur Kering.
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Since the the beginning of the Sidoarjo mud flow disaster on May 29, 2006, have been more than 10 times leakage of the mud embankments. The last occurred in late 2014 and has led the houses in the Gempolsari village, in the sub-district of Tanggulangin, submerged in mud. In order to prevent this recurrence on the future, it’s necessary to be monitored, to determine the distribution pattern and elevation of the mud inside embankments. By using Worldview-2 high-resolution satellite imagery on August 2014 and July 2015, then the cover of mud can be classified as four different classes, that is Muddy Mud, Wet Mud, Start Drying Mud, and Dry Mud.
According to the results from the data processing of field observations using Geodetic GPS (kinematic method), the total volume of mud in the main levees in March 2014 was 44.039.123,365 m3 and 47.646.879,058 m3 on July 2015. Based on the results of the mud three-dimensional surfaces modeling in the month of March 2014, was tend to lead to the north. Meanwhile, the mud flows in July 2015 was more concentrated close to the mud’s primary eruption center, caused the deflation and sledding on the bottom soil. Thus, the mud surface looked just like a caldera or crater mud feature. By July 2015, the mud cover was dominated by the Dry Mud.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSG 004.678 Wid v |
| Uncontrolled Keywords: | Lumpur Sidoarjo, Elevasi Lumpur, Volume Lumpur, Model 3 Dimensi, Sidoarjo Mud, Mud Elevation, Mud Volume, Three-Dimensional Model |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G109.5 Global Positioning System 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 > GA Mathematical geography. Cartography |
| Divisions: | Faculty of Civil Engineering and Planning > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | BAGAS TRI WIDODO |
| Date Deposited: | 13 Jan 2017 09:01 |
| Last Modified: | 27 Dec 2018 08:42 |
| URI: | http://repository.its.ac.id/id/eprint/1511 |
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