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All Journal Buletin GAW Bariri ( BGB) Jurnal Widya Climago
Dewita, Anggi
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Computer Science & IT Earth & Planetary Sciences Education Environmental Science Social Sciences Other

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Kajian Awal : Prediksi Kabut Berdasarkan Data Observasi di Wilayah Bandara Zainuddin Abdul Madjid Dewita, Anggi; Alfiandy, Solih
Buletin GAW Bariri (BGB) Vol 5 No 2 (2024): BULETIN GAW BARIRI
Publisher : Stasiun Pemantau Atmosfer Global Lore Lindu Bariri - Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/bgb.v5i2.135

Abstract

The reduction in visibility due to wet particles (fog and mist) is a phenomenon that can occur at Zainuddin Abdul Madjid Airport (ZAM). This event is quite difficult to predict using NWP models because the physical processes involved in its formation are very complex. This study aims to determine the threshold parameters that can be used as a forecasting guide to predict the occurrence of fog. The data used is from January 2024, with parameters assessed from METAR, AWOS, and Fklim71, including wind speed, temperature, dew point, cloud cover, and maximum temperature. The threshold values for each parameter will be determined and tested using a dichotomous verification method to obtain the accuracy value. Based on the analysis, fog in January 2024 formed early in the morning if there was precipitation during the afternoon, with the average wind speed at night being < 1 knot, the temperature difference between maximum temperature and air temperature after sunset being > 4.5°C, and the dew point depression at 17:00 UTC being below 1°C. In January 2024, a dichotomous verification was carried out, and the result showed an accuracy of 87%. Forecasting using this method is not 100% accurate.
ASSESSING THE POTENTIAL OF WEATHER FISHERMEN'S FIELD SCHOOL TO SUPPORT BLUE ECONOMY IN INDONESIA Dewita, Anggi
Jurnal Widya Climago Vol 6 No 1 (2024): Development of Human Resource Competencies in Optimizing Early Warning Systems fo
Publisher : Pusdiklat BMKG

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The blue economy represents an innovative approach to harnessing the marine economy's potential while safeguarding the sea and its ecosystems. This paper aims to explore the potential contribution of Indonesia's Meteorological, Climatological, and Geophysical Agency (BMKG) through Fishermen's Weather Field Schools (SLCN) in supporting the country's blue economy. By analyzing the role of SLCN as a collaborative platform for stakeholders in the fisheries industry, the paper seeks to integrate stakeholder capabilities into a comprehensive framework for a successful and sustainable blue economy. It recommends leveraging SLCN as a ready-to-use platform for stakeholder interaction and encourages collaboration among researchers, government agencies, and non-governmental organizations to ensure the safety and success of local fishermen through effective research and communication.
Analisis Arah dan Kecepatan Angin Permukaan untuk Operasional Penerbangan di Bandara Internasional Zainuddin Abdul Madjid Primadi, Topan Satria; Dewita, Anggi; Zulaichah, Nur Siti; Dewi, Aprilia Mustika
Buletin GAW Bariri (BGB) Vol 6 No 1 (2025): BULETIN GAW BARIRI
Publisher : Stasiun Pemantau Atmosfer Global Lore Lindu Bariri - Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/bgb.v6i1.148

Abstract

Zainuddin Abdul Madjid International Airport (BIZAM), located on Lombok Island, serves both international and domestic flight operations. In aviation, wind effects are categorized as headwind, tailwind, and crosswind. However, tailwind and crosswind with significant speeds are generally considered hazardous to flights. This research aims to analyze surface wind direction and speed patterns at BIZAM to identify potential flight risks associated with tailwind and crosswind phenomena and provide appropriate mitigation recommendations. The study employed windrose diagrams and statistical methods, using 10 years of surface wind direction and speed data (2014–2023) obtained from synoptic observations at the Class II Zainuddin Abdul Madjid Meteorological Station. Findings indicate that wind patterns in the BIZAM area are influenced by monsoon wind movements, with peak wind speeds exceeding ≥21.58 knots. A significant temporal shift in wind dominance was observed: westerly winds (from the west to southwest sector) are now dominant not only from December to February but also extend into March. Conversely, the dominance of winds from the southeast sector begins earlier, in April, and persists until December, reflecting the Australian Monsoon's earlier onset and longer duration than usual. The highest incidence of crosswind events with speeds >13 knots was recorded in December, accounting for 0.15%. Assuming aircraft are landing on Runway 31, pilots are recommended to use this runway in January, February, March, and December, as the percentage of tailwind during these months is lower than the percentage of headwind. Given the potential hazards posed by crosswind and tailwind events, pilots and flight operators are advised to exercise caution when flying during these months.
Co-Authors Alfiandy, Solih Dewi, Aprilia Mustika Primadi, Topan Satria Zulaichah, Nur Siti