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. 2019 Jul 10;6:119. doi: 10.1038/s41597-019-0125-3

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Fig. 4 — Temperature profiles were processed by the ELG method. (a) Horizontal distribution of 755,086 WOD/XBT stations. (b) Horizontal distribution of 446,811 WOD/CTD stations. (c) Monthly number of the WOD/XBT profiles. (d) Monthly number of the WOD/CTD profiles.