Spaceborne Hybrid-Polarimetric SAR Evaluation and Analysis Dataset

To meet diverse polarimetric application needs, HEAD-1.0 additionally provides geocoded SLC (GSLC) products.HEAD-1.0 covers three representative regions with distinct geographical and geomorphological characteristics: (1) the mountain–gobi transition zone in the eastern Tianshan Mountains, Xinjiang; (2) the grassland–desert steppe ecotone in Sonid, Inner Mongolia; and (3) the hilly–plain agricultural zone of the Taihang Mountains and its southern piedmont.

The dataset is intended to support a wide range of polarimetric research applications, with a particular focus on:Hybrid-polarimetric calibration: Information on calibrator deployment and scattering matrices is provided. HP and QP images from the Hami and Sonid calibration sites are employed to develop and validate HP calibration methods.Land cover classification: Localized ground truth maps and auxiliary optical imagery are provided.

Land-cover classification algorithms tailored to HP data can be developed, and systematic comparisons between QP and HP modes can be performed across multiple classification tasks to delineate the capability boundaries of HP mode and to inform the selection of polarimetric modes in future SAR missions.Planetary analog studies: Planetary analog landform annotations are provided. Comparative analyses of HP characteristics across different analog landforms can be conducted, and automated recognition and extraction algorithms can be developed to support analog studies in planetary geology.