Land Cover Reference Data from Kulen, Cambodia (March–April 2021)

This land cover reference dataset comprises 437 polygons across 12 classes, covering 6,062 ha within a 10-km buffer around Kulen, Cambodia. It was derived from 494 GPS points collected during field observations (March–April 2021), drone imagery from 10 sites (617 ha, 0.04–0.10 m resolution, RMSE <1.30 m), and digitized reference polygons from March 2021 PlanetScope imagery (4.8 m resolution). Only high-interpretability areas, such as water bodies, and sites visited during GPS data collection, including rubber plantations, other tree plantations, and evergreen forests, were digitized from PlanetScope imagery. Note: Details of the study area and data collection methods are described in the following publication.Sovann, C., Olin, S., Mansourian, A., Sakhoeun, S., Prey, S., Kok, S., & Tagesson, T. (2025). Importance of Spectral Information, Seasonality, and Topography on Land Cover Classification of Tropical Land Cover Mapping. Remote Sensing, 17(9), 1551. https://doi.org/10.3390/rs17091551