[Retracted] Prediction of Long-term Variation of Ocean Circulation Based on Grey Correlation Clustering

Table 5

Properties of water masses in the South China Sea.

Name	Symbol	Source	Depth range/m	Temperature range/°C (early winter and late summer)	Salinity range (early winter and late summer)
Coastal freshwater mass	F	Continental runoff	<20
Nearshore mixed water mass	M	The coastal fresh water is mixed with the external seawater to form	<75
South China sea surface water mass	S	Western Pacific surface water	0–100
			0–120
Continental shelf water in the southern South China Sea (only in summer)	TS	Java Sea water and Gulf of Thailand water mixed to form	0–120
Kuroshio surface water mass	KS	Kuroshio surface water	0–100
Kuroshio subsurface water mass	KU	Kuroshio subsurface water	100–250
South China Sea subsurface water mass	U	Western Pacific subsurface water	100–200	15.0–21.5	34.00–34.70
			120–200	6.0–22.0	34.00–34.65
South China Sea sub-middle water mass	UI	Western Pacific subtropical thermocline water	200–350	9.8–15.0	34.40–34.70
			200–350	11.0–16.0	34.35–34.65
Middle water mass in the South China Sea	I	Western Pacific middle water	350–900	4.5–10.0	34.40–34.50
			350–800	5.5–11.0	34.39–34.55
Deep water mass in the South China Sea	D	Western Pacific deep water	>900	<5.0	34.35–34.62
			>800	<5.5	34.30–34.70