P16S17S

• Nitrate (SIO - D.Guffy, N.Williams)
• Phosphate (SIO - D.Guffy, N.Williams)
• Silicate (SIO - D.Guffy, N.Williams)
• Oxygen
• TCO₂ (T. Takahashi, LDEO) - No adjustment recommended.
• Crossovers:
  

  Crossing #	Latitude	Longitude	WOCE Line	Station(s) used	Crosses with	Station(s) used	Delta DIC	Stdev DIC
  53a	17° S	150° W	P16S17S	222	P16C	220	1.1	1.5
  53d	17° S	150° W	P16S17S	220	P31	2,5	0.9	0.5
  53e	17° S	150° W	P16S17S	220	P21	157,160	-0.8	1.0
  54	32° S	150° W	P16S17S	190	P6	127,129	5.4	4.2
  55	37° S	150° W	P16S17S	180	P16A17A	3	0.1	2.4
  64	6° S	135° W	P16S17S	121	P17C	124	1	2.5
  65	16° S	133° W	P16S17S	148	P21	131	-0.5	1.7
  66a	33° S	135° W	P16S17S	179	P6	108	0.8	1.0
  66b	33° S	135° W	P16S17S	179	P16A17A	119	2.8	2.2
  MEAN							1.2	1.9

• Precision of Duplicate Measurements - Repeated measurements yielded a precision of ± 0.03%.
• CRM Results - 156 CRM (Batch #6) mean of 2303.2 ± 1.5 compared to Keeling value of 2304.6 ± 1.6 (Keeling;9 runs). Reported values NOT adjusted for measured CRM difference of 1.3 ± 1.5.
• Keeling Replicates - Mean difference for 11 samples was -3.47 ± 1.97. Data were not corrected for difference.
• Alkalinity (C.Goyet, WHOI) - shorebased - Given the limited number of samples analyzed, our inability to confirm the accuracy with crossovers, and the scatter in the reported values, we recommend calculating the alkalinity from the TCO₂ and fCO₂ measurements.
• Crossovers - No Information
• Precision of Duplicate Measurements - No Information
• CRM Results - No Information
• fCO₂ (T. Takahashi, LDEO) - No adjustment recommended.
• Crossovers:
  

  Crossover	Longitude	Latitude	Cruise-1	Stations-1	Cruise-2	Stations-2	ΔSalinity	ΔO2	ΔfCO2	Feely et al. #
  55	150° W	37° S	P16S17S	180	P16A17A	3	-0.001 ± 0.002	1.5 ± 2.5	3.2 ± 10.4	18

  From Feely et al., 1999, ORNL/CDIAC-115 (Δ = Cruise 1 - Cruise 2)
• Precision of Duplicate Measurements - No Information
• CRM Results - No Information
• pH(Not Measured)