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All Journal Inovasi Fisika Indonesia (IFI) International Journal of Research and Community Empowerment
Novianti, Eni
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Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Materials Science & Nanotechnology Mathematics Physics Social Sciences

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ANALISIS DAN INTERPRETASI ANOMALI GRAVITASI UNTUK IDENTIFIKASI POTENSI SUMBER PANAS BUMI DI GUNUNG ARJUNO-WELIRANG: Kata Kunci: Gunung Arjuno-Welirang, potensi panas Bumi, anomali gravitasi, TOPEX, anomali residual Novianti, Eni; Prastowo, Tjipto; Realita, Arie
Inovasi Fisika Indonesia Vol. 13 No. 2 (2024): Vol 13 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n2.p13-24

Abstract

Abstrak Gunung Arjuno-Welirang menyimpan potensi sumber panas Bumi yang melimpah. Hal ini ditandai dengan eksistensi mata air panas Coban, Cangar dan Padusan sepanjang lereng kompleks Arjuno-Welirang serta emisi gas fumarol dan solfatara di sekitar puncak Welirang. Dalam konteks inilah, penelitian ini dilaksanakan untuk identifikasi sumber panas Bumi kompleks Arjuno-Welirang melalui analisis dan interpretasi pengukuran anomali gravitasi. Data penelitian diperoleh dari satelit TOPEX. Data enhancement dilakukan secara berjenjang melalui dekomposisi data CBA menjadi anomali residual dan anomali regional dengan bantuan filter upward continuation, teknik derivative (FHD dan SVD) untuk identifikasi dan interpretasi peta anomali yang lebih akurat, serta analisis spektrum daya sinyal anomali residual untuk estimasi kedalaman sumber panas Bumi. Hasil citra resolusi tinggi dalam bentuk peta kontur SVD berbasis anomali residual memberikan gambaran sebaran pola anomali rendah di sekitar puncak dan lereng Arjuno-Welirang dan Penanggungan, serta arah barat dan barat daya Arjuno-Welirang. Anomali rendah tersebut menunjukkan keberadaan fluida panas sebagai produk aktivitas sumber panas Bumi bawah permukaan. Analisis lebih lanjut dengan bantuan spektrum radiasi anomali residual memberikan estimasi kedalaman sumber panas Bumi Arjuno-Welirang adalah 1650 m di bawah permukaan. Identifikasi sumber panas Bumi khususnya potensi sumber panas Bumi Arjuno-Welirang adalah penting sebagai bagian dari kegiatan eksplorasi sumber panas Bumi nusantara untuk mencari sumber energi alternatif yang ramah lingkungan (green energy). Kata Kunci: Gunung Arjuno-Welirang, potensi panas Bumi, anomali gravitasi, TOPEX, anomali residual Abstract Mount Arjuno-Welirang is home for geothermal potential, characterized by the presence of hot springs such as Coban, Cangar, and Padusan along its slopes, as well as fumarole and solfatara gas emissions around the peak of Welirang. In this context, this research was conducted to identify the source in the Arjuno-Welirang through analysis and interpretation of gravity measurements. The data were collected from TOPEX satellite. Data enhancement was carried out through the CBA decomposition into residual and regional anomalies using an upward continuation filter. Derivative techniques (FHD and SVD) were employed for accurately identifying and interpretating anomaly maps, along with analysis of the power spectrum of residual anomaly signals to estimate the source depth. High-resolution image results in the form of SVD-based residual anomaly contour maps provided an overview of the distribution pattern of low anomalies around the peaks and slopes of Arjuno-Welirang and Penanggungan, as well as to the west and southwest directions. These low anomalies indicate the presence of hot fluids as a product of subsurface geothermal activities. A further analysis using the power spectrum of residual anomaly radiation estimated the depth of the Arjuno-Welirang geothermal source to be 1650 meters below the surface. Identification of the geothermal source, particularly the potential of the Arjuno-Welirang geothermal source, is crucial as part of geothermal exploration activities in Indonesia to search for environmentally friendly alternative energy (green energy). Keywords: Mount Arjuno-Welirang, geothermal potential, gravity anomaly, TOPEX, residual anomaly
Socialization and Training on Processing LDPE (Low-Density Polypropylene) Plastic Waste into Paving Blocks Agustinur, Satya Cantika; Basmalah, Mazaya; Novianti, Eni; Lestari, Emilia Dwi; Martila, Lenny Intan; Putri, Rahadian Dwi Oktavia; Yantidewi, Meta; Deta, Utama Alan
International Journal of Research and Community Empowerment Vol. 1 No. 1 (2023): Febuary 2023
Publisher : Mitra Edukasi dan Publikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58706/ijorce.v1n1.p14-21

Abstract

The increasing amount of waste in Indonesia, especially in Surabaya, is a severe problem that must be resolved immediately. The amount of plastic waste in the city of Surabaya is one of the causes of damage to the environment. So that the plastic waste must be processed so that it can be reduced. Surabaya State University KKN students made this problem the basis for implementing the Socialization and Training of Plastic Waste Processing Types of LDPE (Low-Density Polypropylene) into Paving Blocks. The purpose of this activity is as an effort to reduce the amount of plastic waste and provide alternative new jobs for the community. This activity applies the lecture method, question and answer, simulation and practice. The action begins with the opening and filling out of the pre-test, then continues with filling in the material, making simulations, and the activity ends with closing and filling in the post-test. The pre-test and post-test assessments results showed that the participant's knowledge of the material was still classified as "low" with an average pre-test score of 52.40% and an increase in knowledge of the material as indicated by the post-test average score of 87 .27%. The activity concludes that participants experience an increase in knowledge and understanding of handling plastic waste into paving blocks and have knowledge about tools, materials, and processing methods to be applied in everyday life.
ANALISIS SUHU BOLA BASAH DAN SELISIH TEKANAN UDARA SEBAGAI PARAMETER DALAM MEMPREDIKSI AWAN CUMULONIMBUS DI STASIUN METEOROLOGI MARITIM TANJUNG PERAK : Kata Kunci: awan cumulonimbus, suhu bola basah, selisih tekanan udara, cuaca ekstrem, data sinoptik Tika, Ni Made Aprillia Sekar Manggar; Novianti, Eni; Pramesti, Novia; Faridatussafura, Nurzaka; Realita, Arie
Inovasi Fisika Indonesia Vol. 14 No. 1 (2025): Vol 14 No 1
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v14n1.p43-54

Abstract

Kemunculan awan cumulonimbus dapat menyebabkan cuaca ekstrem seperti badai guntur dan petir. Untuk mengetahui potensi kemunculannya dapat dilakukan dengan mengidentifikasi parameter suhu bola basah dan selisih tekanan udara. Parameter tersebut berpengaruh pada kelembapan udara yang menjadi faktor penting pembentukan awan cumulonimbus. Dalam konteks penelitian ini, periode tahun 2022 diambil sebagai sampel analisis untuk mengetahui pola representatif kejadian cuaca ekstrem akibat kemunculan awan cumulonimbus. Metode penelitian ini menggunakan metode pembacaan data sinoptik melalui buku laporan ME-48. Setelah data di analisis dan diolah menggunakan Microsoft Excel dapat ditemukan kemunculan awan cumulonimbus pada bulan Januari, Februari, Maret, April, Mei, Juni, Oktober, November dan Desember, di mana awan cumulonimbus mulai memasuki tingkat dewasa terjadi pukul 13.00 WIB. Rentang nilai suhu bola basah pada pembacaan pukul 09.00 hingga 11.00 WIB digunakan untuk memprediksi kemunculan awan cumulonimbus adalah 26,1-26,5°C. Sedangkan selisih nilai tekanan udara yaitu pada rentang 1,3-1,6 milibar atau 130-160 Pascal. Penelitian ini diharapkan dapat memberikan peringatan dini terhadap kejadian cuaca ekstrem khususnya di wilayah cakupan Stasiun Meteorologi Maritim Tanjung Perak. Kata Kunci: awan cumulonimbus, suhu bola basah, selisih tekanan udara, cuaca ekstrem, data sinoptik  Abstract The appearance of cumulonimbus clouds may trigger extreme weather, such as thunderstorms and lightning. It is possible to predict its appearance by figuring out the wet bulb temperature aspects and the differential in air pressure. These variables have an impact on air humidity, which is an essential element in the occurrence of cumulonimbus clouds. This study employs the 2022 timeframe as a sample pattern of catastrophic weather conditions due to the arrival of cumulonimbus clouds. For this reason, the ME-48 report book was adopted for the synoptic data reading method. Using Microsoft Excel to analyze and process data resulted in the onset of cumulonimbus clouds in January, February, March, April, May, June, October, November and December, with cumulonimbus clouds approaching maturity at 13.00 WIB. The range of wet bulb temperature values used to anticipate the arrival of cumulonimbus clouds is 26.1-26.5°C during measurements from 09.00 to 11.00 WIB. Meanwhile, the air pressure differential lies within the range of 1.3-1.6 millibars (130-160 Pascal). This study is intended to assist in mitigating the consequences of early warning systems for extreme weather, particularly in the immediate area of the Tanjung Perak Maritime Meteorological Station.  Keywords: cumulonimbus clouds, wet bulb temperature, air pressure difference, extreme weather, synoptic data
Co-Authors Agustinur, Satya Cantika Basmalah, Mazaya Faridatussafura, Nurzaka Lestari, Emilia Dwi Martila, Lenny Intan Pramesti, Novia Putri, Rahadian Dwi Oktavia Realita, Arie Tika, Ni Made Aprillia Sekar Manggar Tjipto Prastowo Utama Alan Deta Yantidewi, Meta