Index of /ftp/oceans/CARINA/Meteor/06MT592

[ICO]NameLast modifiedSizeDescription

[DIR]Parent Directory  -  
[TXT]06MT20030723.exc.csv13-May-2009 12:07 745K 
[   ]M59-2.pdf20-Dec-2006 08:30 643K 

Please cite this data set as:

Wallace, D. and M. Rhein. 2007. Meteor 06MT20030723 (SFB 460) cruise data from the 
2003 cruises, CARINA Data Set. http://cdiac.ornl.gov/ftp/oceans/CARINA/Meteor/06MT592/. 
Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department 
of Energy, Oak Ridge, Tennessee. doi: 10.3334/CDIAC/otg.CARINA_06MT20030723

# 11/21/07 Initialized README file 
# Data from T.Tanhua (12/20/06) and R.Steinfeldt (12/15/06) 
# Ship: Meteor 
# Cruise: 59/2; Experiment SFB 460 
# Dates: 7/23-8/29/2003 
# EXPOCODE: 06MT20030723 
# Region: Subpolar North Atlantic: Reykjavik, Iceland to St. Johns, Canada 
# Ch. Sci. Monika Rhein; Univ. Bremen, Inst. .Env. Phys., Dpt Oceanogr.  
# 131 stations; 24 place Rosette 
# Hydro: Who - M. Rhein; Status - final 
# 	Notes: 	Updated values from R.Steinfeldt 1/23/08 
# 		ea-Bird 911 plus 
# 		Temperature (ITS-90), accuracy 0.003C 
# 		Salinity (PSS-78), accuracy 0.003 
# 		Bottle salinity: measured with Guildline Autosal 8400 A,  
# 		precision 0.001; standard seawater: batches P139 and P141 
# 		See Kieke et al. 2007 
# Nuts/O2: Who - F. Malien; Status - final 
# 	Notes: Oxygen by  Winkler titration. Precision estimate from replicates (95 % confidence interval) +/- 0.51 umol/kg. 
# 	Nutrients: Precision about 1%. Precision from duplicates: 
# 		0.205 +/- 0.09 umol/kg for NO3,  
# 		0.005 umol/kg for NO2, 
# 		0.025 +/- 0.013 umol/kg for PO4, 
# 		0.5 +/- 0.06 umol/kg for SiO2. 
# TCO2: Who - T. Tanhua; Status - final 
# 	Notes: Coulometric titration [Johnson et al., 1993].  
# 	CRM corrected from 3 batches (batch # 56, 58 and 60). Mean offset was 0.02 +/- 1.48 umol/kg (95% confidence interval, n = 129).  
# 	Precision of the measurements was 1.2 umol/kg (95% confidence interval), as determined from analyses of 120 duplicate samples. 
# TA: Who - ; Status - final 
# 	Notes: Potentiometric titration [Mintrop et al., 2000]. 
# 	CRM corrected from 4 batches (batch # 56, 58 and 60). Mean difference was 0.02 +/- 1.93 umol kg-1  (n=116).  
# 	Precision 2.3 umol kg-1, determined from measurements of 119 duplicate samples, but general scatter of ~5umol/kg. Difficult to QC. 
# pH: Who - ; Status - final   
# 	Notes: Spectrophotometric method (DOE, 1994), Originally reported on total H scale @ 21.0C.  
# 	Precision  +/- 0.002 pH units. A drift in the response to CRMs was corrected. 
# 	Converted to SWS@25C 
# CFC: Who - M. Rhein; Status - final  
# 	Notes: Updated values from R.Steinfeldt 1/23/08 
# 	CFC-11: SIO-93 scale, accuracy 6%, minimum error 0.06 pmol/kg 
# 		(calibration problems, all data flagged 3) 
# 	CFC-12: SIO-93 scale, accuracy 1.5%, minimum error 0.03 pmol/kg 
# 	See Rhein et al. 2007. 
# 	Converted to SIO-98 scale 11/21/08 
# References: 
# DOE, 1994. Handbook of methods for the analysis of various parameters of the carbon dioxide system in sea water. 
ORNL/CDIAC-74, U. S. Dep. of Energy, Oak Ridge Natl. Lab., Oak Ridge, Tenn., USA. 

# JOHNSON, K.M., WILLS, K.D., BUTLER, D.B., JOHNSON, W.K. UND WONG, C.S., 1993. Coulometric total carbon dioxide 
analysis for marine studies: Maximizing the performance of an automated gas extraction system and coulometric 
detector. Mar. Chem., 44(2-4): 167-188. 

# Kieke, D., et al. (2007). Changes in the pool of Labrador Sea Water in the subpolar North Atlantic. Geophys. 
Res. Lett. 34, L06605, doi: 1029/2006GL028959.  

# MINTROP, L., PEREZ, F.F., GONZALEZ-DAVILA, M., SANTANA-CASIANO, J.M. UND KORTZINGER, A., 2000. Alkalinity 
determination by potentiometry: intercalibration using three different methods. Ciencias Marinas, 26(1): 23-37. 

# Rhein, M., D. Kieke, and R. Steinfeldt (2007). Ventilation of Upper Labrador 
# Sea Water, 2003-2005. Geophys. Res. Lett., 34, L06603, doi:10.1029/2006GL028540.