Syaifullah, Syahru Alamsyah (2024) Analisis Pengaruh Erupsi Gunung Semeru Terhadap Variasi Precipitable Water Vapor Menggunakan Global Navigation Satelite System (GNSS) Periode 2020 – 2023. Other thesis, Institute Teknologi Sepuluh Nopember.
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Abstract
Gunung Semeru merupakan gunung api dengan riwayat letusan sejak tahun 1600 dan menjadi gunung api paling aktif di Indonesia. Selain dari dampak korban jiwa, letusan dari gunung api memberikan dampak pada atmosfer yang yang berasal dari keluarnya abu dan gas dalam jumlah besar. Oleh karena itu dilakukan penelitian mengenai variasi nilai precipitable water vapor (PWV) terhadap erupsi Gunung Semeru pada tahun 2020-2023. Dengan memanfaatkan 14 stasiun CORS terdekat dengan Gunung Semeru dapat dilakukan pengolahan variasi nilai PWV menggunakan Gipsy-X 2.1. Pengolahan ini membawa hasil bahwa terdapat perbandingan lurus antara peristiwa erupsi Gunung Semeru terhadap variasi nilai PWV. Terdapat pola umum dalam variasi nilai PWV ketika peristiwa erupsi, yaitu terdapat kenaikan nilai PWV beberapa hari sebelum erupsi puncak kemudian menurun secara perlahan pasca erupsi puncak. Dengan rata-rata persentase kenaikan nilai PWV sebesar 3.039 % dari 3 hari sebelum erupsi dan rata-rata persentase penurunan nilai PWV sebesar 3.854 % dalam 3 hari setelah erupsi dalam erupsi tahun 2020 hingga 2023.
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Mount Semeru is a volcano with a history of eruptions since 1600 and is the most active volcano in Indonesia. Apart from the impact of casualties, volcanic eruptions have an impact on the atmosphere which comes from the release of large amounts of ash and gas. Therefore, a study was conducted on the variation in precipitable water vapor (PWV) values to the eruption of Mount Semeru in 2020-2023. By utilizing 14 CORS stations closest to Mount Semeru, the processing of PWV value variations can be carried out using Gipsy-X 2.1. This processing results in the fact that there is a direct comparison between the eruption of Mount Semeru and the variation in PWV values. There is a general pattern in the variation in PWV values during an eruption event, namely an increase in PWV values a few days before the peak eruption then decreases slowly after the peak eruption. With an average percentage increase in PWV value of 3,039% from 3 days before the eruption and an average percentage decrease in PWV value of 3,854% in 3 days after the eruption in the 2020 to 2023 eruptions.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Erupsi, GNSS, PWV, ZTD, ZWD, Eruption |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD171.75 Climate change mitigation |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | Syahru Alamsyah Syaifullah |
| Date Deposited: | 25 Jul 2024 04:08 |
| Last Modified: | 25 Jul 2024 04:08 |
| URI: | http://repository.its.ac.id/id/eprint/108759 |
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