BOTTLE
Ship: RV ÁNGELES ALVARIÑO
Dates: 18 - 29 AUG 2016  
Cruise Alias: TALPRO
Region: Western Mediterranean
EXPOCODE: 29AJ20160818
Chief Scientist: JULLION, Loic
STNNBR					
CASTNO	not measured or reported	conversion Assigned			
BTLNBR					
DATE					
TIME	not measured or reported				
LATITUDE					
LONGITUDE					
CTDPRS	initial units DBAR		PIs L. Jullion (MIO) & K. Schroeder (ISMAR)	PUB&REP (1, 2)	Data file (1)
CTDTMP	initial units ITS90		PIs L. Jullion (MIO) & K. Schroeder (ISMAR)	PUB&REP (1, 2)	Data file (1)
CTDSAL	initial units PSS78	 Calibrated	PIs L. Jullion (MIO) & K. Schroeder (ISMAR)	PUB&REP (1, 2)	Data file (1)
SALNTY	not measured or reported				
CTDOXY	initial units µMOL/KG	 Calibrated	PIs L. Coppola (MIO) & K. Schroeder (ISMAR)	PUB&REP (1, 2)	Data file (1)
OXYGEN	 measured but not reported				
SILCAT	initial units µMOL/KG		PIs L. Coppola (MIO) 	PUB&REP (1)	Data file (1)
NITRATNO3+NO2	initial units µMOL/KG		PIs L. Coppola (MIO)	PUB&REP (1)	Data file (1)
NITRIT	initial units µMOL/KG		PIs L. Coppola (MIO)	PUB&REP (1)	Data file (1)
PHSPHT	initial units µMOL/KG		PIs L. Coppola (MIO)	PUB&REP (1)	Data file (1)
TCARBN	initial units µMOL/KG		PIs M. Álvarez (IEO)	PUB&REP (1)	Data file (1)
ALKALI	initial units µMOL/KG		PIs M. Álvarez (IEO)	PUB&REP (1)	Data file (1)
PHTS25P0	initial units Total Scale 25ºC		PIs M. Álvarez (IEO)	PUB&REP (1)	Data file (1)
CFC12	initial units PMOL/KG		PIs T. Tanhua (GEOMAR)	PUB&REP (1)	Data file (1)
SF6	initial units FMOL/KG		PIs T. Tanhua (GEOMAR)	PUB&REP (1)	Data file (1)

Data files: 
(1) Tanhua, Toste (2019): Hydrochemistry of water samples during MedSHIP cruise Talpro. PANGAEA, https://doi.org/10.1594/PANGAEA.902293
(2) Tanhua, Toste (2019): Physical oceanography during MedSHIP cruise Talpro. PANGAEA, https://doi.org/10.1594/PANGAEA.902330

Reports & Publications: 
(1) Jullion, L. (2016): TAlPro-2016: A Tyrrhenian Sea & Alger-Provencal component of the MedSHIP Programme, RV Angeles Alvariño, 18/08/16 – 29/08/16, Palermo 
(Italy) – Barcelona (Spain), Bremenhaven, EUROFLEETS2 Cruise Summary Report . hdl:10013/epic.5a866780-1f8a-45cf-8111-47b2b5dc29db

Carbonate system methods
Total Inorganic Carbon:
Samples for carbon determination were collected in 600mL borosilicate bottles and were analyzed within one day after sampling. The measurement was carried out 
with a VINDTA 3D system #075 (Marianda). Samples were thermostated at 20 (+/- 0.2) ºC. A calibrated thermostated pipette (volume approx. 20 ml) was filled with 
the sample by gas pressure (nitrogen), the sample was transferred to the stripper, acidified with phosphoric acid (approx. 10% solution) and extracted with 
nitrogen as carrier gas. Liberated CO2 was measured with an UIC COULOMETER type 5011. The precision was controlled by titration of several bottles filled from 
the same Niskin bottles one after the other. From these results, it can be concluded that precision is ±2 μmol kg−1. No calibration loop was available and 
therefore the accuracy was checked running samples from CO2-CRMs, batch 147, the calibration factor (DIC CRM/DIC measured) varied 1.00466±0.00208. The precision 
of the analysis was ± 2 μmol kg−1 and the accuracy could be ±3 μmol kg−1 or better. Taken from Report (1).

Alkalinity:
Samples for alkalinity determination were collected in 600mL borosilicate bottles and were analyzed within one day after sampling. Samples were analyzed 
following the double end point potentiometric technique by Pérez and Fraga (Mar. Chem., 1987) and Pérez et al. (CC.MM., 2000). Measurements of CRM were performed 
in order to control the accuracy of the alkalinity measurements; the pH as measured by the electrode was corrected to obtain the closest mean alkalinity to the 
CRM; the pH correction was never larger than 0.05. The precision of the alkalinity measurements was better than ±1 μmol kg−1  determined from duplicate Niskin 
bottles, and the accuracy of the alkalinity measurements (i.e. including sampling errors) is determined to be 1 μmol kg−1  . Additionally, the daily drift of 
the system was determined by regular measurements of a substandard (surface seawater); this drift was always very low. The precision of the analysis was ± 1 µmol/kg  
and the accuracy was determined to be 1 µmol/kg . Taken from Report (1).

pH:
pH was measured in cylindrical optical glass 10-cm pathlength cells with a spectrophotometric procedure (Clayton and Byrne, DSR I, 1993). pH is reported in the 
total scale at 25 ºC (pHST25). The precision was estimated to ±0.0012 by measuring replicates from the same Niskin bottle. Regarding the accuracy, the 
theoretical pH25T value for the 147 CRM batch using the dissociation constants from Mehrbach et al. (LO, 1973) refitted by Dickson and Millero (DSR, 1987) 
is 7.9195. Replicate pH measurements along the cruise on CRMs are a bit lower than the theoretical value by 0.0048±0.0020 pH units. An internal consistency 
analysis showed that this correction should not be applied. Taken from Report (1).
