Crop intensity mapping using dynamic time warping and machine learning from multi-temporal planetscope data

Rafif, Raihan and Kusuma, Sandiaga Swahyu and Saringatin, Siti and Nanda, Giara Iman and Wicaksono, Pramaditya and Arjasakusuma, Sanjiwana (2021) Crop intensity mapping using dynamic time warping and machine learning from multi-temporal planetscope data. Land, 10 (12). ISSN 2073445X

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Abstract

Crop intensity information describes the productivity and the sustainability of agricultural land. This information can be used to determine which agricultural lands should be prioritized for intensification or protection. Time-series data from remote sensing can be used to derive the crop intensity information; however, this application is limited when using medium to coarse resolution data. This study aims to use 3.7 m-PlanetScope™ Dove constellation data, which provides daily observations, to map crop intensity information for agricultural land in Magelang District, Indonesia. Two-stage histogram matching, before and after the monthly median composites, is used to normalize the PlanetScope data and to generate monthly data to map crop intensity information. Several methods including Time-Weighted Dynamic Time Warping (TWDTW) and the machine-learning algorithms: Random Forest (RF), Extremely Randomized Trees (ET), and Extreme Gradient Boosting (XGB) are employed in this study, and the results are validated using field survey data. Our results show that XGB generated the highest overall accuracy (OA) (95 ± 4), followed by RF (92 ± 5), ET (87 ± 6), and TWDTW (81 ± 8), for mapping four-classes of cropping intensity, with the near-infrared (NIR) band being the most important variable for identifying cropping intensity. This study demonstrates the potential of PlanetScope data for the production of cropping intensity maps at detailed resolutions. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Item Type: Article
Additional Information: Cited by: 9; All Open Access, Gold Open Access
Uncontrolled Keywords: crop intensity; classification; extreme gradient boosting; random forests; extremely randomized trees
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Faculty of Geography > Departemen Sains Informasi Geografi
Depositing User: Sri JUNANDI
Date Deposited: 05 Oct 2024 02:12
Last Modified: 05 Oct 2024 02:12
URI: https://ir.lib.ugm.ac.id/id/eprint/3770

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