Sea surface temperature proxies (alkenones, foraminiferal Mg/Ca, and planktonic foraminiferal assemblage) and their implications in the Okinawa Trough

Progress in Earth and Planetary Science

Table 2 Comparison of errors in foraminiferal assemblage-based temperature estimates calculated using four techniques

Method	Core	SST	Estimation error (°C)^a	Calibration dataset
MAT	DGKS9603	Summer	±1.50	Global
MAT	DGKS9603	Winter	±1.50	Global
RAM	MD01-2404	Summer	±0.72	Western Pacific
RAM	MD01-2404	Winter	±1.17	Western Pacific
SIMMAX-28	255 B-3GC	Summer	±0.45	Western Pacific
SIMMAX-28	255 B-3GC	Winter	±1.27	Western Pacific
FP-12E	255 B-3GC	Summer	±1.46	Northwestern Pacific
FP-12E	255 B-3GC	Winter	±2.48	Northwestern Pacific

^aStudies in which estimation errors are defined: MAT (Ortiz and Mix 1997), RAM (Chen et al. 2005), SIMMAX-28 (Pflaumann and Jian 1999), and FP-12E (Thompson 1981)