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Indian Ocean subtropical mode water: its water characteristics and spatial distribution
Department of Geophysics, Tohoku University, Sendai, Japan
Abstract. We examined Indian Ocean Subtropical Mode Water (IOSTMW) and described its characteristics using an isopycnally averaged three-dimensional hydrographic dataset. Through careful examination of the spatial distribution and water characteristics of the core in the layer of minimum vertical temperature gradient, we concluded that the IOSTMW exists as a robust structure in the western part of the Indian Ocean subtropical gyre in summer. The averaged IOSTMW properties during approximately 1960–2004 were 16.54±0.49°C, 35.51±0.04 psu, and 26.0±0.1 σθ. The IOSTMW distribution area was 27–38° S, 25–50° E.
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Citation: Tsubouchi, T., Suga, T., and Hanawa, K.: Indian Ocean subtropical mode water: its water characteristics and spatial distribution, Ocean Sci. Discuss., 6, 723-739, 2009. Bibtex EndNote Reference Manager
