Andriasih, Febriyanti (2026) Pemodelan Genangan Banjir Pasang (ROB) Di Pesisir Utara Surabaya Melalui Integrasi Penurunan Muka Tanah Metode PS-InSAR Dan Skenario Kenaikan Muka Air Laut. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kawasan Pesisir Utara Surabaya rentan terhadap banjir rob akibat kenaikan muka air laut dan penurunan muka tanah. Penelitian ini bertujuan menganalisis deformasi vertikal menggunakan metode PS-InSAR serta memodelkan genangan banjir rob menggunakan Bathtub Model (BTM) dan Enhanced Bathtub Model (eBTM) dengan penambahan parameter Sea Level Rise (SLR). Data yang digunakan meliputi citra Sentinel-1 SLC periode 2020-2023, DEMNAS, data pasang surut BIG Stasiun Surabaya (SRBY), dan data SLR regional NOAA. Hasil penelitian menunjukkan deformasi vertikal berkisar antara -0,919 mm/tahun hingga 40,201 mm/tahun dengan pola subsiden dominan pada wilayah pesisir utara dan timur Surabaya. Nilai SLR regional sebesar 79,446 mm turut meningkatkan potensi genangan rob. Hasil pemodelan menunjukkan luas genangan metode BTM berkisar antara 10141,52 ha hingga 10402,85 ha, sedangkan eBTM berkisar antara 1285,16 ha hingga 1308,76 ha. Penambahan parameter SLR dan deformasi tanah meningkatkan luas genangan pada seluruh skenario. Namun, eBTM menghasilkan distribusi genangan yang lebih realistis karena mempertimbangkan konektivitas hidrologis.
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The northern coastal area of Surabaya is vulnerable to tidal flooding due to rising sea levels and land subsidence. This study aims to analyze vertical deformation using the PS-InSAR method and to model tidal flood inundation using the Bathtub Model (BTM) and the Enhanced Bathtub Model (eBTM) with the addition of a Sea Level Rise (SLR) parameter. The data used include Sentinel-1 SLC imagery from 2020-2023, DEMNAS, BIG tide gauge data from the Surabaya Station (SRBY), and regional SLR data from NOAA. The research results show that vertical deformation ranges from -0,919 mm/year to 40,201 mm/year, with a dominant subsidence pattern in the northern and eastern coastal areas of Surabaya. Regional SLR values of 79,446 mm further increase the potential for tidal flooding. Modeling results show that the flooded area using the BTM method ranges from 10141,52 ha to 10402,85 ha, while the eBTM method ranges from 1285,16 ha to 1308,76 ha. The addition of SLR and land deformation parameters increases the inundation area across all scenarios. However, the eBTM method produces a more realistic inundation distribution because it accounts for hydrological connectivity
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Banjir Rob, Penurunan Tanah, Pasang Surut, BTM, eBTM, Tidal Flooding, Land Subsidence, Tides, BTM, eBTM. |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | Febriyanti Andriasih |
| Date Deposited: | 25 Jun 2026 08:41 |
| Last Modified: | 25 Jun 2026 08:41 |
| URI: | http://repository.its.ac.id/id/eprint/134076 |
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