Cruise: 74AB19871112 (dataset:GLODAPv1.2) Data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Synonyms (including errata!) for this cruise: 74AB29; 74AB19871112; 74AB29; I05

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…
offsets.png	[autogenerated from RC_Toste/adjustments!]	View

Data files re. Cruise: - no files! -

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
cruise:1 nitrate:14 oxygen:11 phosphate:13 salinity:10 silicate:14

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:5; CTD salinity data good, setting CTD salinity offset and QC
flag to bottle values.
Oxygen action ID:5; CTD oxygen data good, setting CTD oxygen offset and QC flag
to bottle values.

Posted by svheuven@gmail.com on 2015-02-19 09:22:25 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112/oxygen: update slope+intercept

autogenerated: BOToxy is compatible with unchanged CTDoxy

Posted by svheuven@gmail.com on 2014-12-18 16:52:45 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112/salinity: update slope+intercept

autogenerated: BOTsal is compatible with unchanged CTDsal

Posted by svheuven@gmail.com on 2014-12-18 16:52:45 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 Adjustment IND and PAC_SvH_20140611.xlsx): : maintain Inversion is not
clear about this one -- shifting makes some xovers better, some worse. Drift
during cruise? Interesting local mismatch between AB1987, AB2002, RR2009

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 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 Adjustment IND and PAC_SvH_20140611.xlsx): : maintain

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 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 Adjustment IND and PAC_SvH_20140611.xlsx): : maintain

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 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 Adjustment IND and PAC_SvH_20140611.xlsx): : Change to 0.99. Clear
iimprovement by inversion.

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 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 Adjustment IND and PAC_SvH_20140611.xlsx): : maintain

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 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 Adjustment IND and PAC_SvH_20140611.xlsx): : maintain

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 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 Adjustment IND and PAC_SvH_20140611.xlsx): : maintain

Posted by svheuven@gmail.com on 2014-06-16 15:50:46 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - nitrate

Mean offset is approx. +1.2%. Inversions suggest -0.5% to -1.5%. Changes 0.98 to
0.99. This is below threshold, but I believe 0.98 to be too big an adjustment.

Posted by svheuven@gmail.com on 2014-04-23 10:28:30 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112/oxygen: init slope+intercept

autogenerated: using BOToxy (few or no CTDoxy or BOToxy>80%).

Posted by svheuven@gmail.com on 2014-02-25 17:02:15 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112/salinity: init slope+intercept

autogenerated: using BOTsal (few or no CTDsal or BOTsal>80%).

Posted by svheuven@gmail.com on 2014-02-25 17:02:15 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - silicate

Based on new inversion results it was decided on Groeningen to revert the
adjustment.

Posted by siv.lauvset@uib.no on 2014-02-11 17:03:28 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - cfc11

Surface saturation for CFC12 (113%) higher than for CFC11 (103%), and deviation
in CFC11-CFC12 relationship. These results, in addition to a comparisons with
other cruise, near in time an space, suggest that the CFC12 are too high. We
have recommended an adjustment of CFC12 of 0.9, and thus no adjustment is
recommended for CFC11.

Posted by emje@norceresearch.no on 2013-01-09 13:54:03 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - cfc12

Surface saturation for CFC12 (113%) higher than for CFC11 (103%), and deviation
in CFC11-CFC12 relationship. These results, in addition to a comparisons with
other cruise, near in time an space, suggest that the CFC12 are too high. We
recommend an adjustment of 0.9.

Posted by emje@norceresearch.no on 2013-01-09 13:53:11 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - silicate

Bergen meeting 2012: We decided to revise this and follow the inversion and the
mean of the offsets; adjust with 0.97

Posted by ttanhua@geomar.de on 2012-11-13 18:02:18 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - silicate

Mario and Toste
Inversion suggest 0.97 and the mean of the crossovers is 1.028. There is some
inconsistencies in the crossovers that is a bit difficult to explain, but we
suggest to follow the inversion (GLODAP applied -2.7 umol/kg).
We suggest an adjustment of 0.98

Posted by ttanhua@geomar.de on 2012-08-01 16:51:24 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - phosphate

Mario and Toste reconsidered
A number of crossovers are very consistent with no correction needed, but others
suggest that a downward adjustment might be needed, particularly for the western
part of the section.
This could suggest that different adjustment should be applied for east and west
part of section, but we don't confident enough for doing this.
We also note the Alvarez et al (2011, JGR) used a correction of 0.98 for this
cruise.

Posted by ttanhua@geomar.de on 2012-08-01 16:45:03 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - nitrate

Mario and Toste reconsidered this one.
Inversion suggest 0.985, mean of rossovers is 1.025. This cruise is consistently
high.
We suggest to adjust nitrate by 0.98

Posted by ttanhua@geomar.de on 2012-08-01 16:33:36 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - oxygen

No mean offset with 8 cruises: 1.000
Inversion suggests: 0.999
Although there is some spreading of the xover results, there is no justification
for an adjustment.

Posted by mario.hoppema@awi.de on 2012-07-23 16:24:07 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - phosphate

Offset with 7 cruises: 1.021
Inversion suggests: 0.983
Good xovers with some cruises. Some other cruises, e.g. 316N19941201 and
317519950922 tend to make the offset higher. However, these latter cruises will
be adjusted to higher.
We suggest NO adjustment

Posted by mario.hoppema@awi.de on 2012-07-23 15:45:54 UTC for data product: GLODAPv2, v2.2019, v2.2020, v2.2021, v2.2022, v2.2023

74AB19871112 - salinity

Offset with 8 cruises: -0.9 ppm
Inversion suggests: +2.1 ppm
Orig. GLODAP applied slight: +0.2
We suggest NO adjustment

Posted by mario.hoppema@awi.de on 2012-07-23 15:11:52 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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