Sulaiha, Fiamanati (2019) Studi Variasi Permukaan Laut Di Wilayah Laut Jawa Dan Laut China Selatan Menggunakan Data Satelit Altimetri Jason. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Fenomena pemanasan global dapat menimbulkan adanya ekspansi termal dan variasi massa air yang mengakibatkan pencairan gletser, lapisan es di kutub dan perubahan rata-rata permukaan laut global. Efek ini memiliki dampak yang penting pada sosial ekonomi, infrastruktur dan lingkungan, yang menyebabkan hilangnya tanah disekitar daerah pesisir pantai dimana lebih dari pada 10% penduduk dunia hidup. Sejak akhir abad ke-18, perubahan kedudukan air laut diamati dari stasiun pasang surut di sepanjang garis pantai. Namun, pengamatan stasiun pasang surut memiliki keterbatasan dalam jumlah, distribusi, dan jangkauannya, serta adanya pengaruh land subsidence. Oleh karena itu, penelitian ini menganalisis variasi permukaan laut di Laut Jawa dan Laut China Selatan selama periode 2002-2019 menggunakan data pengamatan misi referensi satelit altimetri, yaitu Jason 1, Jason 2, dan Jason 3. Variasi permukaan laut yang diamati menunjukkan laju kenaikan muka air laut sebesar 4,1 mm/tahun. Tren linier bernilai positif dari gradien garis kearah kanan ini didapatkan dari hasil persamaan regresi linier yaitu y = 4,134x – 8260.8017, dimana kecepatan tinggi terjadi di sekitar Laut Jawa bagian Utara atau Selatan yang memiliki nilai 7-9 mm/tahun. Sehingga berdasarkan hasil tersebut dapat dilakukan perencanaan pra-kejadian terhadap dampak dari kenaikan muka air laut yang akan mendatang.
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The phenomenon of global warming can rise the existence of thermal expansion and variation of water mass that causes melting glaciers, polar ice sheet and changes in average global sea level. This effect has an important impact on socio-economic, infrastructure and environment which causes loss of land around coastal areas where more than 10% of the world population lives. Since the end of the 18th century, changes in the position of seawater have been observed from tidal station along the coastline. However, the observation of tidal stations has limitations in number, distribution and coverage, as well as the influence of land subsidence.
Therefore, this study analyzed variations in sea level in the Java Sea and the South China Sea during the period 2002-2019 using altimetry satellite reference mission data, namely Jason 1, Jason 2, and Jason 3. Sea level variations that need to be explored increase sea air by 4,1 mm / year.
This positive linear trend of the light-line gradient is obtained from the results of the linear regression equation, y = 4,134x – 8260,8017, where high velocities occur around the north or south Jawa Sea which has a value of 7-9 mm / year. So based on the results pre-event planning can be carried out on the impact of the upcoming sea level rise.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSG 551.458 Sul s-1 2019 |
| Uncontrolled Keywords: | Altimetri, Sea Level Anomaly, Trend |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G109.5 Global Positioning System 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 > GC Oceanography G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | Faculty of Civil Engineering and Planning > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | Fiamanati Sulaiha |
| Date Deposited: | 13 Mar 2024 07:27 |
| Last Modified: | 13 Mar 2024 07:27 |
| URI: | http://repository.its.ac.id/id/eprint/65440 |
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