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All Journal PRISMA FISIKA Jurnal Ilmu-Ilmu Pertanian Indonesia JPG (Jurnal Pendidikan Geografi) Jurnal Meteorologi Klimatologi dan Geofisika Seminar Nasional Lahan Suboptimal
Simanjuntak, Presli Panusunan
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Agriculture, Biological Sciences & Forestry Astronomy Earth & Planetary Sciences Education Environmental Science Mathematics Physics Other

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PENGARUH PARAMETER METEOROLOGI TERHADAP KONSENTRASI CO2 DAN CH4 DI DKI JAKARTA Agustina, Lisa; Simanjuntak, Presli Panusunan; Khoir, Aulia Nisa?ul
Jurnal Meteorologi Klimatologi dan Geofisika Vol 6 No 2 (2019): Jurnal Meteorologi Klimatologi dan Geofisika
Publisher : Unit Penelitian dan Pengabdian Masyarakat Sekolah Tinggi Meteorologi Klimatologi dan Geofisika

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1053.247 KB) | DOI: 10.36754/jmkg.v6i2.121

Abstract

DKI Jakarta merupakan pusat dari pemerintahan dan ekonomi di Indonesia. Pesatnya aktivitas penduduknya tentu saja menyebabkan adanya polutan penyebab pencemaran udara, dimana beberapa parameternya adalah CO2 dan CH4. Meningkatnya jumlah polutan tersebut akan membahayakan lingkungan terutama kesehatan manusia serta dapat menjadi gas rumah kaca di atmosfer dengan masa hidup panjang, terutama CO2. Tinjauan terhadap parameter meteorologi sangat penting, karena mempengaruhi tingkat konsentrasi CO2 dan CH4 di atmosfer. Oleh sebab itu, perlu dilakukan analisis keterkaitan antara parameter meteorologi dengan konsentrasi CO2 dan CH4 di DKI Jakarta. Metode yang digunakan dalam penelitian ini adalah statistika deskriptif untuk melihat sebaran secara temporal dari polutan CO2 dan CH4 terhadap waktu dan hubungannya dengan parameter meteorologi (suhu, kelembaban, curah hujan dan kecepatan angin). Lokasi pengamatan terletak di BMKG Pusat yaitu Kemayoran. Periode data yang digunakan adalah 2008-2017. Hasil pengolahan data menunjukkan konsentrasi CO2 tertinggi pada periode MAM dan terendah pada periode JJA. Konsentrasi CH4 tertinggi pada periode DJF dan terendah pada periode JJA. Stabilitas atmosfer yang tinggi dan kecepatan angin yang rendah serta tidak sedikit curah hujan menyebabkan konsentrasi CO2 dan CH4 tinggi di lokasi  pengamatan. Perhitungan statistika deskriptif memerlihatkan adanya pengaruh dari musiman dalam menghasilkan rata-rata konsentrasi polutan. Kecepatan angin menyebabkan penurunan konsentrasi CO2 sebanyak 83%, dan 17% lainnya disebabkan oleh faktor lain. Faktor curah hujan sebesar 45% mempengaruhi penurunan konsentrasi CH4 di Kemayoran.  Sebesar 45% faktor kelembapan juga mempengaruhi konsentrasi CH4. Jadi kenaikan konsentrasi CH4 dipengaruhi oleh faktor curah hujan dan kelembapan, dan lainnya dipengaruhi faktor lain. Penurunan konsentrasi CH4 dipengaruhi kecepatan angin sebesar 44%, dan sebesar 56% disebabkan oleh faktor lainnya
Prediksi Awal Musim Hujan Menggunakan Metode Jaringan Syaraf Tiruan Backpropagation Wibawanty, Dinda Rosyia; Simanjuntak, Presli Panusunan
PRISMA FISIKA Vol 9, No 2 (2021)
Publisher : Jurusan Fisika, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pf.v9i2.46283

Abstract

Informasi prediksi Awal Musim Hujan merupakan salah satu rekomendasi utama bagi petani dalam menentukan musim tanam. Oleh karena itu, penelitian ini bertujuan untuk memprediksi Awal Musim Hujan dengan menggunakan metode statistik yang telah banyak diuji kehandalannya yakni metode Jaringan Syaraf Tiruan (JST) Backpropagation. Arsitektur model JST yang digunakan terdiri dari 1 hidden layer, 2 hidden neuron dan 3 neuron input dengan fungsi aktivasi sigmoid biner. Penelitian dilakukan pada titik Stasiun Klimatologi Palembang dengan menggunakan data curah hujan harian periode 1981-2017. Prediktor yang digunakan meliputi suhu muka laut (SST), angin zonal 850 mb dan precipitable water (PW). Hasil penelitian menunjukkan prediksi curah hujan dasarian memiliki nilai korelasi antara 0.3 hingga 0.6 dengan RMSE berkisar antara 29 hingga 53 mm per sub-musim. Prediksi awal musim hujan mencapai kategori “Sesuai Prakiraan” sebesar 42.86%.   
Identifikasi Kecenderungan Pola Iklim Ekstrim di Pangkalpinang Yuliarti, Aflah; Simanjuntak, Presli Panusunan; Ardiani, Normi
Seminar Nasional Lahan Suboptimal Vol 11, No 1 (2023): Prosiding Seminar Nasional Lahan Suboptimal ke-11 “Optimalisasi Pengelolaan Lah
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Yuliarti, A., Simanjuntak, P. P., & Ardiani, N. (2023). Identifying trends in extreme climate patterns in Pangkalpinang. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-11 Tahun 2023, Palembang 21 Oktober 2023. (pp. 417-427). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Human activities have led to an increase in global temperatures. This also increases the frequency of extreme climates such as extreme rainfall and air temperatures. Pangkalpinang City is the capital of the Bangka Belitung Islands Province. The growth rate of Pangkalpinang city is approximately 1.1% per year, with a 29% increase in the number of vehicles being one of the factors contributing to the rise in extreme climate events. This research aimed to examine the trends in extreme air temperatures and extreme rainfall in Pangkalpinang city during the period of 1991-2022. The research method used is secondary data research with a quantitative approach. The study utilized 12 extreme climate indices as defined by ETCCDMI, comprising 7 extreme air temperature indices and 5 extreme rainfall indices. The significant extreme air temperature trend indicates an increase in air temperature in Pangkalpinang, especially the annual average daily maximum temperature of 0.018°C/year, the annual average daily minimum temperature of 0.025°C/year, while the TN10P (Cold night) index experienced a decrease of 0.344°C/year which is the opposite of the TX90p (Warm Days) index trend of 0.273°C/year. The rainfall trend in Pangkalpinang has not changed significantly.
Pengaruh Variabilitas Iklim Terhadap Kesesuaian Lahan Lada (Piper nigrum L.) Berbasis Analisis Spasial di Kepulauan Bangka Belitung Sari, Fatrina Aprilia; Khakim, Mokhamad Yusup Nur; Setiawan, Budhi; Simanjuntak, Presli Panusunan
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 27 No 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.27.2.148-155

Abstract

[SPATIAL ANALYSIS OF THE IMPACT OF CLIMATE VARIABILITY ON LAND SUITABILITY POTENTIAL FOR BLACK PEPPER (Piper nigrum L.) Cultivation In The Bangka Belitung Islands]. The Bangka Belitung Islands are a major center of pepper production in Indonesia; however, over the past decade, cultivated area and productivity have declined due to climate variability and limited land biophysical information. This study aims to analyze land suitability for pepper (Piper nigrum L.) cultivation based on climatic, topographic, and soil indicators, as well as to evaluate the effect of climate variability on changes in land potential across the island region. The data used include rainfall observations from 71 rain gauges during 2014–2023, ERA5 reanalysis data for surface temperature, humidity, and solar radiation, and maps of slope and soil types as physiographic parameters. All parameters were processed using a Geographic Information System with the Inverse Distance Weighting (IDW) interpolation method to generate the spatial distribution of climate variables, while a weighted overlay method was applied to determine land suitability classes. Validation was conducted by comparing ERA5 data with observational data to ensure the consistency of spatial climate patterns. The results indicate that climate variability contributes to a decline in land suitability in coastal areas with soil textures that are sensitive to environmental changes. Most of the area, covering 1,189.76 ha, is classified as Highly Suitable (S1) and is distributed in central Bangka Island and parts of Belitung Island. Meanwhile, 452.65 ha are classified as Moderately Suitable (S2) and are predominantly located in coastal areas with soil limitations and coastal environmental influences. These findings highlight the importance of climate adaptation strategies to support sustainable national pepper cultivation. Full txt pdf
Spatial Analysis of Tourism Climate Comfort in the Belitung Geopark Based on Historical and Projected Climate Data Yuliarti, Aflah; Setiawan, Budhi; Khakim, Mokhamad Yusup Nur; Simanjuntak, Presli Panusunan
JPG (Jurnal Pendidikan Geografi) Vol 13, No 1 (2026)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jpg.v13i1.25483

Abstract

Climate-based tourism is closely linked to atmospheric comfort, while ongoing global climate change has intensified uncertainty in climatic conditions across many tourism destinations, including tropical geoparks. This study evaluates the spatial and temporal patterns of tourism climate comfort in the Belitung Geopark by integrating historical climate data (1991–2024) and future climate projections (2026–2050) under the Representative Concentration Pathway (RCP) 4.5 scenario. Tourism climate comfort was assessed using the Tourism Climate Index (TCI), which incorporates key meteorological variables, namely air temperature, relative humidity, precipitation, wind speed, and solar radiation. A spatial–temporal analysis supported by Geographic Information Systems (GIS) and heatmap visualization was applied to examine variations across 17 geosites. The results reveal a pronounced seasonal pattern characteristic of tropical climates, with the highest TCI values occurring during the dry season, particularly in August and September. Coastal geosites consistently exhibit higher and more stable comfort levels than inland, hilly, and forested areas, which experience noticeable declines in comfort during the wet season due to increased rainfall and humidity. Climate projections indicate a general reduction in TCI values, especially during transitional and wet months; however, most coastal geosites remain within acceptable to good comfort categories for tourism activities. These findings highlight the role of geographical factors, such as proximity to the coast and local atmospheric dynamics, in shaping spatial variations in tourism climate comfort. The study provides a scientific basis for adaptive tourism management, seasonal tourism planning, and climate change adaptation strategies in tropical geopark destinations, it offers potential applications in geography education and spatial climate analysis.
Co-Authors Ardiani, Normi Budhi Setiawan Khakim, Mokhamad Yusup Nur Khoir, Aulia Nisa?ul Lisa Agustina, Lisa Sari, Fatrina Aprilia Wibawanty, Dinda Rosyia Yuliarti, Aflah