Water Mass Properties, Variabilities And Origins In Northern Borneo
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Date
2013-12
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Universiti Malaysia Terengganu
Abstract
We present a definition of water mass properties, variabilities and origins along
the coast of northern Borneo based on 55 CTD casts taken during cruises in
July 2009. We also studied data from four Argo profiling floats in the
surrounding seas. The temperature salinity (TS) relation in the South China
Sea, Sulu Sea and Celebes Sea show the existence of eight water masses.
Earlier studies defined the surface mixed layer water masses as Open Sea
Water (OSW), Continental Shelf Water (CSW) and Seasonal Thermocline Water
(STW). Below the layer of this active mixing are subsurface zones of rapid
transition called the Tropical Surface Water (TSW) and Maximum Salinity Water
(MaxSW). Permanent Thermocline Water (PTW), Minimum Salinity Water
(MinSW) and Deep Water (DW) are at the intermediate layer to about 1000 m.
BLUElink ReANalysis (BRAN) global ocean models demonstrated how current
circulations influence the exchange of water masses between the three seas.
The Sulu Sea sits in the middle, and has very limited connections between the
other two seas. Connection with the Celebes Sea occurs at a depth of 200m.
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Shukri Bin Arsad, GC 300 .S5 2013