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. 2021 Jul 12;8:170. doi: 10.1038/s41597-021-00964-1

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© The Author(s) 2021

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Fig. 6 — Comparison of absolute soil moisture between SoMo.ml* and in-situ data for each layer (top to bottom): (left) NRMSE values of SoMo.ml* at each measurement station and (right) comparison with other global gridded datasets. Triangles show mean and box plot whiskers show the 0.2 to 0.8 quantiles of the NRMSE across all measurement stations. The boxes are ranked according to the median NRMSE so that the best performing data is positioned at the top.