Analisis Daerah Rawan Longsor Di Kabupaten Brebes Memanfaatkan Citra  Landsat 8 Dengan Metode Inverse Distance Weighted (IDW)

Sari, Maya; Cahyaningtyas, Christian; Prasetyo, Sri Yulianto Joko

doi:10.46229/jifotech.v1i2.276

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The Inverse Distance Weighted (IDW) method is a simple deterministic method that accounts for neighboring points. Inverse Distance Weighted (IDW) assumes that each point size has a local influence that decreases with distance (Sari et al, 2021). Inverse Distance Weighted (IDW) is calculated using the following equation: The first step in this research is data collection, followed by a descriptive analysis.…”

Section: Invers Distance Weightedmentioning

confidence: 99%

Estimated Sulfur Dioxide Pollutant Concentrations In Medan City Using Ordinary Kriging and Inverse Distance Weighting Approaches

Fatmawati,

Lubis

2024

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Sulfur dioxide (SO2) pollution is a serious problem that negatively affects air quality and human health. So2 is generated by various human activities, especially the combustion of fossil fuels, as well as from natural sources such as volcanic eruptions. The emission of SO2 in urban areas, including Medan, Indonesia, has raised concerns as it is associated with respiratory diseases and the formation of acid rain. This research aimed to estimate comparative SO2 concentrations in Medan City using geostatistical methods, specifically ordinary kriging and inverse distance weighted (IDW). Air quality monitoring data from the Dinas Lingkungan Hidup Kota Medan were collected during a certain period. The collected data were analyzed and then interpolated using ordinary kriging and IDW methods. Furthermore, the Ordinary Kriging method involves testing the OK assumption, calculation of the experimental semivariogram, calculation of the theoretical semivariogram, structural analysis, and calculation of Root Mean Square Error (RMSE). Meanwhile, the Inverse Distance Weighted method involves calculating the Euclidean distance, determining the weights based on the power parameter, calculating the RMSE value, and estimating the SO2 concentration. The comparison results show that the OK method is more accurate in determining SO2 concentration compared to the IDW method in Medan City. In the estimation of sulfur dioxide (SO2) concentration, the OK method used the best theoretical semivariogram model, namely the exponential model, and in the estimation process of the IDW method, the power parameter 1 was used.

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Section: Invers Distance Weightedmentioning

confidence: 99%

Estimated Sulfur Dioxide Pollutant Concentrations In Medan City Using Ordinary Kriging and Inverse Distance Weighting Approaches

Fatmawati,

Lubis

2024

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“…Metode IDW merupakan metode dengan formulasi paling sederhana dan memberikan hasil yang akurat sehingga sering digunakan dalam estimasi sumber daya batubara. Metode IDW menggunakan blok sederhana dengan mempertimbangkan titik terdekat atau di sekitarnya [2]. Selain Metode IDW, terdapat metode lain yang juga digunakan yaitu Metode Ordinary Kriging.…”

Section: Pendahuluanunclassified

Analisis Variasi Penaksiran Sumberdaya Batubara Menggunakan Metode Inverse Distance Weight Dan Ordinary Kriging

Yulanda

Hakim

Arafat

et al. 2022

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Penaksiran sumberdaya batubara merupakan tahapan penting dalam kegiatan industri pertambangan batubara. Terdapat dua jenis metode yang lazim digunakan dalam penaksiran sumber daya yaitu Metode Inverse Distance Weight (IDW) dan Ordinary Kriging (OK). Kedua metode tersebut menggunakan sistem grid blok dalam penaksiran. Beberapa penelitian sebelumnya cenderung hanya memperlihatkan perbedaan selisih pada nilai total hasil penaksiran. Belum ditemukan penelitian yang memperlihatkan nilai variasi pada setiap grid blok estimasi. Penelitian ini bertujuan untuk mengetahui variasi nilai kedua metode tersebut pada setiap grid blok. Adapun data yang menjadi objek penaksiran adalah ketebalan batubara (coal thickness). Di dalam penelitian ini, kedua metode juga akan membandingkan tonase sumber daya batubara guna mengetahui perbedaan hasil perhitungan sumber daya. Data penelitian berupa 60 titik bor eksplorasi yang diolah menggunakan perangkat lunak perhitungan sumber daya batubara. Berdasarkan hasil penaksiran sumber daya batubara menggunakan Metode IDW diperoleh jumlah sumber daya batubara sebesar 49.101.422 Ton. Perolehan sumber daya batubara hasil kalkulasi Metode IDW menunjukkan selisih yang tidak terlalu signifikan dibandingkan dengan penggunaan Metode Ordinary Kriging yang menunjukkan nilai sebesar 47.521.660 Ton. Variasi nilai estimasi yang dihasilkan kedua metode tersebut rata-rata berkisar 3%.

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Bioremediation of chlorpyrifos-contaminated soil with biduri plant (Calotropis gigantea), bacteria, and biochar: Soil fertility impact

Rosariastuti,

Mahdani,

Purwanto

et al. 2024

J. Degrade. Min. Land Manage.

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During the Industrial Revolution, agriculture was linked to environmental issues. One issue is pesticide pollution. Bioremediation is needed because plant diseases and pests cause farmers to use pesticides excessively, polluting and decreasing soil production. This study evaluated soil fertility from bioremediation with biduri plants, bacteria, and biochar on chlorpyrifos-polluted shallot-growing soil in Brebes Regency. This type of research was an experiment in a greenhouse, using a factorial experimental design with a completely randomized design, consisting of two factors, namely bioremediation agent (A0: without bioremediation agent, A1: Atlantibacter hermannii, A2: bacterial consortium) and coconut shell biochar (B0: without biochar, B1: with biochar). There were six treatment combinations, then replicated three times for each treatment, so there were 18 treatment units. The data were statistically analyzed using ANOVA, Duncan Multiple Range Test, and Pearson correlation. The results showed that the best treatments that were able to improve soil fertility after bioremediation were treatments A1B0 (Atlantibacter hermannii + without biochar), A2B0 (bacterial consortium + without biochar), and A2B1 (bacterial consortium + with biochar). The A1B0 treatment (Atlantibacter hermannii + without biochar) increased the pH by 4.97%, and the soil available P was 12 times higher than the initial soil. The A2B0 (bacterial consortium + without biochar) treatment increased soil cation exchange capacity by 99.81% and soil organic C by 116% higher than the initial soil. The A2B1 (bacterial consortium + with biochar) treatment increased soil total N by 37.50% and available K by 38.47%, higher than the initial soil.

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Analisis Daerah Rawan Longsor Di Kabupaten Brebes Memanfaatkan Citra Landsat 8 Dengan Metode Inverse Distance Weighted (IDW)

Cited by 3 publications

References 4 publications

Estimated Sulfur Dioxide Pollutant Concentrations In Medan City Using Ordinary Kriging and Inverse Distance Weighting Approaches

Estimated Sulfur Dioxide Pollutant Concentrations In Medan City Using Ordinary Kriging and Inverse Distance Weighting Approaches

Analisis Variasi Penaksiran Sumberdaya Batubara Menggunakan Metode Inverse Distance Weight Dan Ordinary Kriging

Bioremediation of chlorpyrifos-contaminated soil with biduri plant (Calotropis gigantea), bacteria, and biochar: Soil fertility impact

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