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All Journal Prosiding Seminar Nasional Official Statistics
M. Naufal Zamani
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Humanities Computer Science & IT Economics, Econometrics & Finance Social Sciences

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Analisis Deret Waktu Penginderaan Jauh Sentinel-2 untuk Pemantauan Fase Tumbuh dan Estimasi Luas Panen Padi M. Naufal Zamani
Seminar Nasional Official Statistics Vol 2026 No 1 (2026): Seminar Nasional Official Statistics 2026
Publisher : Politeknik Statistika STIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34123/semnasoffstat.v2026i1.2607

Abstract

Climate uncertainty demands rapid and adaptive agricultural statistics. This study aims to analyze the trend alignment of Sentinel-2 time-series based on Google Earth Engine (GEE) in monitoring growth phases and estimating rice harvested area in Lombok Island in 2025 to strengthen official statistics. A monthly rice phenology analysis method was developed using NDVI and LSWI spectral indices, then validated against NTB Province BPS KSA data. The satellite estimation recorded a harvested area of 112,343 Ha, showing a systematic underestimation of 28.93% compared to the KSA BPS data (158,069 Ha) due to mixed pixels and cloud cover. Despite the absolute area bias, statistical validation indicated highly synchronized monthly trends with a Pearson correlation (r) of 0.9950 (p < 0.0001) and an RMSE of 5,769.96 Ha. It is concluded that this spatial data science application is reliable in detecting temporal harvest trends and holds potential as a complement to official agricultural statistics.
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