Fig. 4From: Deep-float salinity data synthesis for deep ocean state estimation: method and impactTemporal development of area-mean salinity at 3500 m depth for a the Southern Ocean area (100–150° E, 60–70° S) and b the South Indian Ocean area (40–90° E, 40–50° S), outlined in Fig. 1. The black lines indicate deep-float observations, and the blue and red lines denote the reference and DN cases, respectively, averaging only where deep-float observations exist (see the text for more details). Crosses denote monthly values and dots denote 6-month running mean valuesBack to article page