Monitoring Slope Creep Motion using Multi Temporal Interferometry Synthetic Aperture Radar in Semarang, Indonesia

  • Jamhur Jamhur Geography Department, Universitas Negeri Semarang, Indonesia
  • Vina Nurul Husna Geography Department, Semarang State University
  • Willy Hermawan Puslitbang Tekmira, Ministry of Energy and Mineral Resources, Bandung, Indonesia
  • Deha Agus Umarhadi Graduate School of Environmental Science, Hokkaido University, Japan
  • Ratna Jayanti Geography Department, Universitas Negeri Semarang, Indonesia
  • Salsabila Faizah Kamila a Geography Department, Universitas Negeri Semarang, Indonesia
  • Zulfikar Ardiansyah Fajri Geography Department, Universitas Negeri Semarang, Indonesia
  • Muhammad Taqy Geography Department, Universitas Negeri Semarang, Indonesia
Keywords: InSAR, Semarang City, slope creep

Abstract

Landslide is one type of slope movement, where the slope movement includes creep. Although creep movement does not have an impact on the risk of loss of life, this creep movement takes place constantly and  invisible which has an impact on economic losses. In this study, a time-series monitoring was carried out from 2018 to 2020 to see the movement of the slopes in the study area using the Multi-Temporal Interferometry Synthetic Aperture Radar (MTInSAR). A time series method from Sentinel 1A/B data, which includes Trangkil Sejahtera Housing (PTS), Soegijapranata Catholic University (UNIKA), and 17 August 1945 University (UNTAG) in Semarang City, Indonesia. The results of data processing indicate that there are slope movement in the target location, namely Trangkil Sejahtera and Selorejo Housing (southwest of UNIKA). Based on BPBD 2021 data, landslides occurred in the Trangkil Baru Housing Center (to the north of PTS) and the Garang River landslide channel west of Selorejo. This shows that there is a link between crawling in 2018-2020 and landslides in 2021. Although the use of satellite data has some drawbacks, the results can be taken into consideration in building an early warning system and reducing losses due to landslides.

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Published
2021-12-31
How to Cite
JamhurJ., Vina Nurul Husna, HermawanW., UmarhadiD. A., JayantiR., KamilaS. F., FajriZ. A. and TaqyM. (2021) “Monitoring Slope Creep Motion using Multi Temporal Interferometry Synthetic Aperture Radar in Semarang, Indonesia”, Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management), 11(4), pp. 524-531. doi: 10.29244/jpsl.11.4.524-531.