06MT20040311 - 2008-06-17 14:28:35 - version: 0Posted on 2008-06-17 14:28:35 - last updated on 2008-06-17 14:28:35 as version number 0
9/12/06 Initialized README file
Meteor cruise 60_5
EXPOCODE 06MT20040311
3/11-4/13/2004
46 stations with 24 place Rosette
Chief Scientist - D. Wallace
Hydro: Who - ; Status - final; S Plus - up to date
Notes: IAPSO batch P143 but only a few samples analyzed
for calibration
CTD salinities in file
Bottle numbers fabricated
Nuts/O2: Who - F. Malien; Status - final; S Plus - up to date
Notes:Listed precisions (umol/kg) are 95% CI from replicates
O2 - 0.55
NO3 - 0.18
Si - 0.19 Values increased by 6.8% due to post cruise calibration -
stock standard value was off
PO4 - Not given; values not as good as other nuts
PI suggested calibration based on comparison to CLIVAR data:
NO3<10 none
NO3>10 No3(corr)=NO3+(NO3-10)*.0.5
TCO2: Who - D. Wallace; Status - final; S Plus - up to date
Notes: Method of Johnson et al., 1993
CRM used (batch 58, 60, 64, 64)
Mean difference between measurement and certified value
1.02+/-0.44umol/kg (95%CI;n=88) and values adjusted
by subtraction of this amount
Replicate precision 1.49umol/kg (95%CI) from duplicates
For calibration information/details see Tanhua and Wallace, 2005.
TA: Who - D. Wallace; Status - final; S Plus - up to date
Notes: Method of Mintrop et al. 2000
CRM used (batch 58, 60, 64, 64)
Mean difference between measured and certified value
-1.19+/-0.69; n=69; 95%CI and values adjusted to
CRM.
Replicate precision 4.28umol/kg (95%CI) from duplicates
Authors recommend adjustment upward of 1.6umol/kg based on
comparison to CLIVAR and TTO data (not applied here)
fCO2: Who - ; Status - not measured; S Plus -
Notes:
pH25: Who - ; Status - not measured; S Plus -
Notes:
CFC: Who - T. Tanhua; Status - final; S Plus - up to date
Notes: includes CCl4
Reported on SIO98 scale
Estimated precision of 0.6% and 0.7% for 11 and 12, respectively
Blank of 0.010, 0.007 and 0.045 applied to 11, 12 and CCl4, resp.
Includes SF6, data from Tanhua 6/19/07, precision 1.5%, detection
limit 0.05fmol/kg, bland correction of 0.05fmol/kg applied
reported on GMD2000 scale
C-14: Who - ; Status - not measured; S Plus -
Notes:
C-13: Who - D. Wallace; Status - unknown; S Plus -
Notes: no data received
H-3/He-3: Who - ; Status - not measured; S Plus -
Notes:
Other: PI generated ID number
CH3CCl3; Contact Toste Tanhua (ttanhua@ifm-geomar.de)
N2O; Contact Hermann Bange (hbange@ifm-geomar.de)
Bioincubations; Contact Matt Mills (mmills@ifm-geomar.de)
Iron speciation; Contact Eric Achterberg (eric@noc.soton.ac.uk)
Brominated organohalgens; Contact Douglas Wallace (dwallace@ifm-geomar.de)
References:
Tanhua, T., Körtzinger, A., Friis, K., Waugh, D.W., Wallace, D.W.R., 2007. An estimate of anthropogenic CO2 inventory from decadal changes in oceanic carbon content. PNAS, 104, 9, 3037-3042.
Tanhua, T., Biastoch, A., Körtzinger, A., Lüger, H., Böning, C., and Wallace, D.W.R., 2006. Changes of anthropogenic CO2 and CFCs in the North Atlantic between 1981 and 2004. Global Biogeochemical Cycles, GB4017, doi:10.1029/2006GB002695.
Tanhua, T. and Wallace, D.W.R., 2005. Consistency of TTO-NAS Inorganic Carbon Data with modern measurements. Geophysical Research Letters, 32, L14618, doi:10.1029/2005GL032348.
Tanhua, T., Waugh, D.W., Wallace, D.W.R., 2007. Use of SF6 to estimate anthropogenic CO2 in the upper ocean. Journal of Geophysical Research – Oceans, in review.
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