P14S15S

• Nitrate (Calvin Mordy-PMEL)
• Phosphate (Calvin Mordy-PMEL)
• Silicate (Calvin Mordy-PMEL)
• Oxygen (Bullister-PMEL)
• TCO₂ (Feely-PMEL) - No adjustment recommended.
• Crossovers:
  

  Crossing #	Old #	Latitude	Longitude	Cruise 1	Cruise 1 Sta	Cruise 2	Cruise 2 Sta	ΔTCO2	St.dev.
  40d		1°S	170°W	P14S15S	173	P15N	114	-3.3	4.3
  40e		2°S	170°W	P14S15S	172	P15N	116	2.2	1.5
  40f		3°S	170°W	P14S15S	171	P15N	118	-1.3	2.7
  40h		4°S	170°W	P14S15S	170	P15N	120	-1.5	3.2
  40j		5°S	170°W	P14S15S	169	P15N	122	-0.5	3.1
  40k		5°S	170°W	P14S15S	122	EQS92	63	-0.6	1.7
  40l		6°S	170°W	P14S15S	157	EQS92	66	-3.5	3.2
  44		40°S	173°W	P14S15S/1	93	P14S15S/2	94	-0.1	2.1
  45		67°S	169°W	P14S15S	33	S04P	755	6.6*	3.4
  MEAN								-1.08	2.72

  
  ^*ΔTCO₂ deemed unreliable because of poor fits.
• Duplicate Measurements - No information
• CRM Results - Shipboard analyses of batch 29. The CRM certified value was 1902.54 ± 1.05 (n=14). The overall accuracy and precision for the CRMs on both instruments combined was -1.1 ± 0.9 (n=153). Data were corrected for offset.
• Keeling Replicates- Replicate measurements from different PVC bottles tripped at the same depth, along with replicate measurements from the same PVC bottle was within ± 1.9 µmol/kg.
• Alkalinity (Millero-RSMAS) - No adjustment recommended.
• Crossovers:
  

  Crossing #	Old #	Latitude	Longitude	Cruise 1	Cruise 1 Sta	Cruise 2	Cruise 2 Sta	ΔTALK	St.dev.
  40b		0	170°W	P14S15S	174	P15N	112	6.6	4.2
  40d		1°S	170°W	P14S15S	173	P15N	114	3.4	5.3
  40f		3°S	170°W	P14S15S	171	P15N	118	5.0	4.7
  40i		5°S	170°W	P14S15S	169	EQS92	63	12.2	8.0
  44		40°S	173°W	P14S15S/1	93	P14S15S/2	94	-7.5	6.6
  45		67°S	169°W	P14S15S	33	S04P	755	6.6	3.4
  MEAN								4.30	5.37

• Precision of Duplicate Measurements - No Information.
• CRM Results - 85 CRM measurements made at sea yielded 2173.8 ± 1.6 µmol/kg for Batch 29 and 2190.8 ± 1.7 µmol/kg for Batch 30 on three different cells. This offset was due to changes in the volume of the cells. All TA data have been corrected to laboratory CRM values for each cell and each leg.
• fCO₂ (not measured)
• pH (Millero - RSMAS) - We recommend adjusting all spectrophotometric pH values upward by 0.0047 pH units to be internally consistent with the other carbon parameters.
• Crossovers:
  

  Crossover no.	Old crossover no.	Latitude	Longitude	Cruise 1	Cruise 1 Stations	Cruise 2	Cruise 2 Stations	ΔpH
  40a	16	0	170°W	P14S15S	174	EQS92	56	-0.0036±0.001
  40i	13	5°S	170°W	P14S15S	169	EQS92	63	-0.0060±0.001
  41b	8	10°S	170°W	P14S15S	157,159,161	EQS92	66	-0.0018±0.001
  41c	10	10°S	170°W	P14S15S	157,159,161	P31	54,57,61	-0.0049±0.001