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The Soil Moisture Active Passive Experiments: Validation of the SMAP Products in Australia. - Nan Ye; Jeffrey P. Walker; Xiaoling Wu 001; Richard de Jeu; Ying Gao 002; Thomas J. Jackson; François Jonard; Edward Kim 001; Olivier Merlin; Valentijn R. N. Pauwels; Luigi J. Renzullo; Christoph Rüdiger; et al. (IEEE Trans. Geosci. Remote. Sens., 2021)