Cruise: 06MT19900123 (dataset:GLODAPv1.2) Data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Synonyms (including errata!) for this cruise: 06MT11_5; 06MT19900123; 06MT11_5; A21/A12; corrigendum:06M319900123 (06MT is wrong Expocode for this Meteor!)

IMPORTANT information for GLODAP Reference Group Editors: This adjustment is a published version for GLODAPv2!

Stations:	[1-last]
The selected Calculated Carbon Parameter has been dismissed in October 2017! Legacy values will be exported as is and displayed in red with subscript "c", e.g. -0.123456_c! No data available? Insert -999 No suggestion for adjustment possible? Insert -888 To calibrate CTDsal use: CTDsal_calibrated = (CTDsal - CTDsal_intercept) / CTDsal_slope To calibrate CTDoxy use: CTDoxy_calibrated = (CTDoxy - CTDoxy_intercept) / CTDoxy_slope
Insert your commit message below explaining your change(s) before you save…
Salinity [+]
CTD-Sal. [+] slope/intercept - action [ID]	/ - #
TCO₂ [+]
Alkalinity [+]
pH [+]
pCO₂ [+]
Nitrate [x]
Phosphate [x]
Silicate [x]
Oxygen [x]
CTD-Oxyg. [x] slope/intercept - action [ID]	/ - #
CFC12 [x]
CFC11 [x]
CFC113 [x]
CCl4 [x]
C13 [+]
SF6 [x]

Cruise Info

Annotations for this cruise:

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Files for Adjustment Plot files re. Cruise:

Filename:	Comment:	Action…
06MT19900123___Xresults.png		View
offsets.png	[autogenerated from RC_Are/adjustments!]	View

Data files re. Cruise: - no files! -

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
cruise:2 nitrate:36 oxygen:33 phosphate:32 salinity:39 silicate:33 tco2:21

Plot files re. Cluster: - no files! -

Comments re. this cruise in GLODAPv2

View 23 comment(s) (Lists all comments)

Autogenerated CTD salinity and CTD oxygen update

Automated update! This overwrites adjustment values (and flags) of CTDoxy and
CTDsal with the values from BOTsal and BOToxy for every cruise, unless CTDsal
(or CTDoxy) is not present or bad.
Salinity action ID:3; no CTD salinity data. Setting CTD salinity offset to -999,
QC flag removed.
Oxygen action ID:3; no CTD oxygen data. Setting CTD oxygen offset to -999, QC
flag removed.

Posted by svheuven@gmail.com on 2015-02-19 09:22:22 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - alkalinity

Last minute change of mind: ALK needs to be preserved even though calculated,
because otherwise the CO2 system is not determined (GLODAPv2 does not consider
pCO2). Moreover, ALK (or a determined CO2 system) is required for C14
calculations. So I compared the calculated ALK with our almost-final, adjusted
product. The MT1990 ALK data appear slightly low compared to the cruises it
crosses: against some cruise (e.g., AQ2010) by circa 6 umol/kg, against others
(e.g., 29HE2010) more neutrally (MT low by ~3). I recommend to apply a
(borderline small) adjustment of +4.

Posted by svheuven@gmail.com on 2015-02-03 10:49:13 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - oxygen

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 0.99. Perfect match with
SAVE, which gets 0.99.

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - silicate

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : make 0.96. Especially clear
against the recent Polarstern cruises (which are of very high quality).

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - phosphate

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 0.98

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - nitrate

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : make 0.985. Clearly 1-2% high
against 06AQ1989 and several others.

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - alkalinity

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : make -999. QC1: data is calculated
from DIC and pCO2. Needs to be removed from dataset.

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - tCO2

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated comment - salinity

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 0

Posted by svheuven@gmail.com on 2015-01-08 16:40:56 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123/oxygen: update slope+intercept

autogenerated: only BOToxy available (no CTDoxy)

Posted by svheuven@gmail.com on 2014-12-18 16:52:38 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123/salinity: update slope+intercept

autogenerated: only BOTsal available (no CTDsal)

Posted by svheuven@gmail.com on 2014-12-18 16:52:38 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123/oxygen: init slope+intercept

autogenerated: using BOToxy (no CTDoxy)

Posted by svheuven@gmail.com on 2014-02-25 17:02:11 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123/salinity: init slope+intercept

autogenerated: using BOTsal (no CTDsal)

Posted by svheuven@gmail.com on 2014-02-25 17:02:11 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - general

I ran crossovers for this cruise with a larger data set that includes PACIFICA
and the results are overall the same. The mean offset for silicate is 1.059
which is close to the mean offset reported by Are Olsen (see comment) when not
including PACIFICA. I still agree that 0.97 is an appropriate adjustment for
silicate on this cruise

Posted by siv.lauvset@uib.no on 2013-01-22 16:50:19 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - phosphate

New inversion for phosphate in the Atlantic with 10 core cruises assigned
suggests an adjustment indeed, though somewhat larger than previously. We stay
with the Bergen decision.

Posted by mario.hoppema@awi.de on 2013-01-09 16:51:28 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - alkalinity

Mean offset -4.2 but this is biased to low value by cruises which are low
(Geosecs Atlantic).
Inversion suggests insignificant corr of +5.2
Thus NO adjustment

Posted by mario.hoppema@awi.de on 2012-11-16 14:39:23 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - tco2

Mean offset -0.7
Inversion suggests insignificant corr of -0.9
thus NO adjustment

Posted by mario.hoppema@awi.de on 2012-11-16 14:37:50 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - phosphate

Bergen meeting: Based on Pacific analysis, we decided to adjust phosphate by
0.98. Consistent crossover results in both Atlantic (one outlier bias average
low) and Pacific Ocean.

Posted by ttanhua@geomar.de on 2012-11-13 11:19:01 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - oxygen

The inversion suggested a correction of 0.9897, based on 8 crossovers with a
mean offset of 1.006. This is a SO cruise, but oddly, not included in CARINA.
Recommend adjustment of 0.99.

Posted by are.olsen@uib.no on 2012-09-17 13:12:32 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - silicate

The inversion suggest correction of 0.9686 and a mean offset of 1.077, latter
value due to huge offset with 316N19831113. BUT it does appear high, and I
recommend an adjustment of 0.97. GLODAP had this cruise 4.9 4.9 μmol/kg too
high.

Posted by are.olsen@uib.no on 2012-09-13 20:29:38 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - phosphate

Suggested correction of 0.9852, and mean offset 1.013. Do not adjust.

Posted by are.olsen@uib.no on 2012-09-10 21:21:05 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - nitrate

Suggested correction of 0.9882 & mean bias 1.023. Do not adjust

Posted by are.olsen@uib.no on 2012-08-31 14:58:45 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

06MT19900123 - salinity

Inversion suggested correction of -0.9 ppm based on 9 crossovers with a mean
offset of 0.755 ppm. Do not adjust.

Posted by are.olsen@uib.no on 2012-08-31 09:56:43 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

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ReadMe file(s) for this cruise

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