Studi Penurunan Muka Tanah Menggunakan Data Alos Palsar Multi Temporal Dengan Teknik Differential Interferometric Synthetic Aperture Radar (DInSAR) (Studi Kasus: Lumpur Lapindo, Sidoarjo)

Yulyta, Sendy Ayu (2015) Studi Penurunan Muka Tanah Menggunakan Data Alos Palsar Multi Temporal Dengan Teknik Differential Interferometric Synthetic Aperture Radar (DInSAR) (Studi Kasus: Lumpur Lapindo, Sidoarjo). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Munculnya semburan lumpur di Porong, Sidoarjo, yang terletak di lokasi kegiatan eksplorasi gas PT. Lapindo Brantas memberikan dampak negatif untuk penduduk setempat dan lingkungannya, salah satu dampaknya yakni deformasi. Dalam dinamika bumi, permukaan tanah akan selalu mengalami deformasi dengan berbagai macam faktor penyebab. Seiring perkembangan teknologi, RADAR (Radio Detection and Ranging) merupakan salah satu teknologi penginderaan jauh yang dapat dimanfaatkan untuk mengamati deformasi tanah. Dalam penelitian ini diterapkan metode DInSAR (Differential Interferometric Synthetic Aperture Radar) untuk mendapatkan besar deformasi dengan ketelitian mencapai sub-sentimeter. Data yang digunakan dalam penelitian ini adalah empat buah citra satelit ALOS/PALSAR (Februari 2008, Januari 2009, dan Februari 2010 dan Januari 2011) yang kemudian diproses secara Differentialvi Interferometri SAR (DInSAR) hingga didapatkan besar deformasi pada radius 1.5 km dari pusat semburan. Hasil metode DInSAR menunjukkan deformasi vertikal yang terjadi di sekitar wilayah semburan bervariasi, dibeberapa lokasi mengalami subsidence dan beberapa mengalami uplift, tergantung peristiwa yang terjadi pada kurun waktu tersebut. Deformasi yang terjadi pada tahun 2008-2011 memiliki rentang 0 – 10 dan 0 - -10 cm di bagian utara, 0 - -20 cm di bagian selatan, 0 - -20 cm di bagian barat, dan 0 – 10 dan 0 - -10 cm di bagian timur. Untuk mengetahui kebenaran atau keakuratan metode DInSAR dalam mengamati penurunan tanah maka dilakukan analisa dengan membandingkan beberapa penelitian lain terkait deformasi lumpur lapindo ===================================================================================================== The emergence of mudflow in Porong, Sidoarjo, which is located at the site of a gas exploration activities by PT. Lapindo Brantas causing negative impact on the local population and the environment, deformation was then one of negative impact. In the dynamics of the earth, the ground will always be deformed with many factors. Along with the development of technology, RADAR (Radio Detection and Ranging) is one of the remote sensing technologies which can be used to monitor deformation around the mudflow. This study applying DInSAR method (Differential Interferometric Synthetic Aperture Radar) for obtain a large deformation with sub-centimeter accuracy. This study using four satellite imagery ALOS/ PALSAR (February 2008, January 2009 and February 2010 and January 2011) which is then processed with Differential SAR Interferometry (DInSAR) to obtain a large deformation at a radius of 1.5 km from the center of mudflow.viii The results of DInSAR method indicating a vertical deformation that occurs around the area bursts vary, in some locations there are subsidence and uplift, depending on the events that occurred in that period. Deformation that occurred in the year 2008-2011 has a range of 0-10 and 0 - -10 cm in the north, 0 - -20 cm in the south, 0 - -20 cm in the west, and 0-10 and 0 - -10 cm in the eastern part. To know the truth or accuracy of the method DInSAR observed a decrease in soil analysis is carried out by comparing several other studies related deformation Lapindo mud

Item Type: Thesis (Undergraduate)
Additional Information: RSG 621.367 8 Yul s
Uncontrolled Keywords: Semburan Lumpur Sidoarjo, Deformasi Tanah ALOS PALSAR, DInSAR.
Subjects: G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing
T Technology > TA Engineering (General). Civil engineering (General) > TA455.S6 Soil (Materials of engineering and construction)
Divisions: Faculty of Civil, Environmental, and Geo Engineering > Geomatics Engineering > 29202-(S1) Undergraduate Theses
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 21 Jan 2021 05:36
Last Modified: 21 Jan 2021 05:36
URI: https://repository.its.ac.id/id/eprint/82555

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