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All Journal Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Sianturi, David Karunia
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Agriculture, Biological Sciences & Forestry Chemistry Education Physics

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Studi Korelasi Variasi Suhu Udara, Titik Embun, Tekanan Udara terhadap Gaya Angkat Pesawat dengan Mempertimbangkan Komponen Angin Di Bandara Internasional Kualanamu Sianturi, David Karunia; Hutahaean, Kevin; Haryanto, Yosafat Donny
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 4 (2025): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i4.1270

Abstract

This study analyzes the correlation between variations in air temperature, dew point, and air pressure on aircraft lift force while considering wind components at Kualanamu International Airport using a quantitative descriptive-correlational approach based on observational METAR and SPECI data throughout 2024. The analyzed parameters included air temperature (°C), dew point (°C), air pressure (hPa), wind direction (°), and wind speed (knot), with lift force calculated based on Boeing 737-800 specifications. The results show that air temperature has a consistent positive correlation with lift force throughout the year (r = 0.35-0.6) with the highest value in April (r = 0.603) and the strongest correlation in the temperature range of 28-33°C, dew point shows variable correlation patterns between months (r = -0.301 to 0.603), while air pressure shows consistent negative correlation (r = -0.1 to -0.47) with the strongest correlation in July (r = -0.472) in the pressure range of 1003-1010 mb. The research concludes that air temperature is the most influential meteorological parameter on aircraft lift force with stable positive correlation, while wind components (headwind/tailwind) have relatively small effects on lift force for large commercial aircraft.
Kajian Mikrofisis Awan Berbasis Satelit pada Kejadian Erupsi Vulkanik Menggunakan Data Himawari-9 (Studi Kasus Erupsi Gunung Lewotobi 12 November 2024) Hasan Wirangi, Muhammad Nur; Sianturi, David Karunia; Adhi Pradana, Satria Mahawira
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 4 (2025): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i4.784

Abstract

Penelitian ini bertujuan untuk memahami dampak erupsi Gunung Lewotobi pada karakteristik mikrofisis awan menggunakan data satelit Himawari-9. Erupsi vulkanik dapat meningkatkan konsentrasi aerosol di atmosfer yang berperan sebagai inti kondensasi awan dan dapat memengaruhi sifat-sifat awan. Dalam studi ini, data yang dianalisis mencakup ketebalan optik awan (COT), radius efektif awan (CER), jumlah tetesan awan (CDNC) pada periode sebelum dan saat kejadian erupsi. Sebaran abu vulkanik dianalisis menggunakan metode RGB, yang menunjukkan penyebaran abu ke arah barat dari gunung. Hasil penelitian menunjukkan pertambahan konsentrasi aerosol tidak memberi pengaruh signifikan terhadap reflektivitas awan. Kejadian erupsi berefek pada perubahan mikrofisis awan dengan adanya peningkatan jumlah tetes awan dan penurunan radius efektif. Temuan ini memberikan wawasan terkait dampak erupsi vulkanik terhadap karakteristik mikrofisis awan terutama di wilayah Indonesia.
Co-Authors Adhi Pradana, Satria Mahawira Haryanto, Yosafat Donny Hasan Wirangi, Muhammad Nur Hutahaean, Kevin