GLODAPv2.2023 Adjustments

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:

View 0 annotation(s) (Lists all annotations)

Files for Adjustment Plot files re. Cruise:

Filename:	Comment:	Action…
74EQ20191202___Redfield.png		View
74EQ20191202___TSmap.png		View
TA_SiOH4_SO_comparison.png		View
co2_comparison_74EQ20191202_unadj.png		View

Data files re. Cruise: - no files! -

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:5 cruise:4 nitrate:7 oxygen:9 phosphate:6 salinity:6 silicate:6 tco2:4

Plot files re. Cluster: - no files! -

Comments re. this cruise in GLODAPv2.2023

View 27 comment(s) (Lists all comments)

GLODAPv3 release: converted value for silicate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: CORRIGENDUM - converted value for silicate_offset from percent
to factor: 0.962.

Posted by nlange@geomar.de on 2026-08-05 16:38:04 UTC for data product: GLODAPv3

GLODAPv3 release: converted value for phosphate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: CORRIGENDUM - converted value for phosphate_offset from
percent to factor: 1.0.

Posted by nlange@geomar.de on 2026-08-05 16:37:50 UTC for data product: GLODAPv3

GLODAPv3 release: converted value for oxygen_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: CORRIGENDUM - converted value for oxygen_offset from percent
to factor: 1.0.

Posted by nlange@geomar.de on 2026-08-05 16:37:37 UTC for data product: GLODAPv3

GLODAPv3 release: converted value for nitrate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: CORRIGENDUM - converted value for nitrate_offset from percent
to factor: 0.981.

Posted by nlange@geomar.de on 2026-08-05 16:37:25 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated silicate update for 74EQ20191202[1-last]

GLODAPv3 release: CORRIGENDUM - silicate update of 74EQ20191202[1-last] based on
silicate_offset: -3.8; inversion: -3.8; inversion_full: -4.1; preadjustment: 0;
offsets_raw: 2.4; offsets_preadj: 3.8; offsets_preadj_u: 0.4; offsets_post:
-0.0; offsets_post_u: 0.4; offsets_post_rt: -0.0; numberofxovers: 4; trends_pre:
-0.1; trends_adj: -0.1.

Posted by nlange@geomar.de on 2026-08-05 14:17:34 UTC for data product: GLODAPv3

74EQ20191202[1-last] GLODAPv3 release

GLODAPv3 release: silicate autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-05 14:17:34 UTC for data product: GLODAPv3

GLODAPv3 release: temperature added as NEW adjustment parameter to 74EQ20191202[1-last]

Automated addition of temperature as NEW parameter to 74EQ20191202[1-last] based
on temperature_offset: 0.

Posted by nlange@geomar.de on 2026-08-05 14:17:20 UTC for data product: GLODAPv3

74EQ20191202[1-last] GLODAPv3 release

Automated addition of temperature as NEW adjustment parameter in GLODAPv3 to
74EQ20191202[1-last] - select parameter to view annotation with specific
details.

Posted by nlange@geomar.de on 2026-08-05 14:17:20 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated tco2 update for 74EQ20191202

GLODAPv3 release: tco2 update of 74EQ20191202 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: 2.1; preadjustment: 0; offsets_raw: 1.1;
offsets_preadj: -1.5; offsets_preadj_u: 1.0; offsets_post: -1.5; offsets_post_u:
1.0; offsets_post_rt: -0.4; numberofxovers: 3; trends_pre: 0.2; trends_adj: 0.2.

Posted by nlange@geomar.de on 2026-08-04 17:12:20 UTC for data product: GLODAPv3

74EQ20191202 GLODAPv3 release

GLODAPv3 release: tco2 autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-04 17:12:20 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated salinity update for 74EQ20191202

GLODAPv3 release: salinity update of 74EQ20191202 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: 0.0000; preadjustment: 0;
offsets_raw: -0.0016; offsets_preadj: -0.0010; offsets_preadj_u: 0.0009;
offsets_post: -0.0010; offsets_post_u: 0.0009; offsets_post_rt: -0.0022;
numberofxovers: 5; trends_pre: 0.0000; trends_adj: 0.0000.

Posted by nlange@geomar.de on 2026-08-04 17:11:50 UTC for data product: GLODAPv3

74EQ20191202 GLODAPv3 release

GLODAPv3 release: salinity autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-04 17:11:50 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated phosphate update for 74EQ20191202

GLODAPv3 release: phosphate update of 74EQ20191202 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: -0.8; preadjustment: 0; offsets_raw: 1.0;
offsets_preadj: 0.8; offsets_preadj_u: 0.5; offsets_post: 0.8; offsets_post_u:
0.5; offsets_post_rt: 1.2; numberofxovers: 5; trends_pre: 0.0; trends_adj: 0.0.

Posted by nlange@geomar.de on 2026-08-04 17:11:35 UTC for data product: GLODAPv3

74EQ20191202 GLODAPv3 release

GLODAPv3 release: phosphate autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-04 17:11:35 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated oxygen update for 74EQ20191202

GLODAPv3 release: oxygen update of 74EQ20191202 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: 0.0; preadjustment: 0; offsets_raw: -0.1;
offsets_preadj: -0.1; offsets_preadj_u: 0.2; offsets_post: -0.1; offsets_post_u:
0.2; offsets_post_rt: -0.1; numberofxovers: 5; trends_pre: 0.0; trends_adj: 0.0.

Posted by nlange@geomar.de on 2026-08-04 17:11:21 UTC for data product: GLODAPv3

74EQ20191202 GLODAPv3 release

GLODAPv3 release: oxygen autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-04 17:11:21 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated nitrate update for 74EQ20191202

GLODAPv3 release: nitrate update of 74EQ20191202 based on nitrate_offset: -1.9;
inversion: -1.9; inversion_full: -1.9; preadjustment: 0; offsets_raw: 2.8;
offsets_preadj: 1.9; offsets_preadj_u: 0.5; offsets_post: -0.0; offsets_post_u:
0.5; offsets_post_rt: 2.0; numberofxovers: 5; trends_pre: 0.0; trends_adj: 0.0.

Posted by nlange@geomar.de on 2026-08-04 17:11:08 UTC for data product: GLODAPv3

74EQ20191202 GLODAPv3 release

GLODAPv3 release: nitrate autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-04 17:11:08 UTC for data product: GLODAPv3

GLODAPv3 release: autogenerated alkalinity update for 74EQ20191202

GLODAPv3 release: alkalinity update of 74EQ20191202 based on alkalinity_offset:
-888.0; inversion: NaN; inversion_full: NaN; preadjustment: NaN; offsets_raw:
NaN; offsets_preadj: NaN; offsets_preadj_u: NaN; offsets_post: NaN;
offsets_post_u: NaN; offsets_post_rt: NaN; numberofxovers: NaN; trends_pre: NaN;
trends_adj: NaN.

Posted by nlange@geomar.de on 2026-08-04 13:46:33 UTC for data product: GLODAPv3

74EQ20191202 GLODAPv3 release

GLODAPv3 release: alkalinity autogenerated adjustment parameter update for
74EQ20191202 - select parameter to view annotation with specific details.

Posted by nlange@geomar.de on 2026-08-04 13:46:33 UTC for data product: GLODAPv3

74EQ20191202 - alkalinity

After consultation with cruise PIs and Paula C. Pardo: When certain phases of El
Niño and SAM occur, there is an intensification of the subtropical gyre of the
South Pacific and of the ACC, which could promote an arrival of older water
(with higher TA) when the ACC is reinforced. As we cannot rule this out, no
adjustment.

Posted by nlange@geomar.de on 2023-08-28 09:55:09 UTC for data product: GLODAPv2.2023

74EQ20191202 - oxygen

Received updated O2 data which are much better. Maintain.

Posted by nlange@geomar.de on 2023-05-12 15:04:52 UTC for data product: GLODAPv2.2023

74EQ20191202 - silicate

All crossovers (four) show offset of about 4% which is constant in depth. MLR
analysis supports this adjustment, depth averages do not… Adjust downward (?)

Posted by nlange@geomar.de on 2023-05-09 13:53:00 UTC for data product: GLODAPv2.2023

74EQ20191202 - nitrate

Difficult decision as crossovers agree that the concentrations are too high.
However, there are only four crossovers in total with the most recent crossover
cruise being from 2006… CANYON-B, N-P ratio of SO, MLR, depth averages, and
crossover analysis on pressure surfaces all show a similar offset. Adjust
downward.

Posted by nlange@geomar.de on 2023-05-09 13:52:31 UTC for data product: GLODAPv2.2023

74EQ20191202 - oxygen

All crossovers (five) show an offset of about 5% which is constant in depth.
This is supported by an additional MLR analysis and depth average comparisons (6
cruises used for MLR). Adjust downward.

Posted by nlange@geomar.de on 2023-05-09 13:51:46 UTC for data product: GLODAPv2.2023

74EQ20191202 - alkalinity

Difficult decision as crossovers agree that the alkalinity concentrations are
too high. However, spread (and hence uncertainty) is quite large and there are
only three crossovers in total with the most recent crossover cruise being from
2005… CANYON-B, CONTENT and crossover analysis on pressure surfaces all show a
similar offset. MLR and depth average analysis is very uncertain.. Adjust
downward.

Posted by nlange@geomar.de on 2023-05-09 13:51:01 UTC for data product: GLODAPv2.2023

74EQ20191202 - initialized

original: 74EQ20191202; RRS Discovery; A. Martin

Posted by nlange@geomar.de on 2023-04-28 15:58:40 UTC for data product: GLODAPv2.2023

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ReadMe file(s) for this cruise

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Files and Comments for salinity

Files

Plot files re. Salinity
[+]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/salinity!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/salinity!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/salinity!]	View
316N20060130_Xover.png	[autogenerated from RC_Nico/salinity!]	View
320620151206_Xover.png	[autogenerated from RC_Nico/salinity!]	View
Xresults.png	[autogenerated from RC_Nico/salinity!]	View

Data files re. Salinity
[+]: - no files! -

View comment(s) (filtered by salinity in subject)

Files and Comments for ctd_salinity

Files

Plot files re. CTD-Sal. [+]
adj. - slope/intercept - action [ID]: - no files! -

Data files re. CTD-Sal. [+]
adj. - slope/intercept - action [ID]: - no files! -

View comment(s) (filtered by ctd_salinity in subject)

Files and Comments for tco2

Files

Plot files re. TCO₂
[+]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/tco2!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/tco2!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/tco2!]	View
Xresults.png	[autogenerated from RC_Nico/tco2!]	View

Data files re. TCO₂
[+]: - no files! -

View comment(s) (filtered by tco2 in subject)

Files and Comments for alkalinity

Files

Plot files re. Alkalinity
[+]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/alkalinity!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/alkalinity!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/alkalinity!]	View
TA_MLR.png		View
Xresults.png	[autogenerated from RC_Nico/alkalinity!]	View

Data files re. Alkalinity
[+]: - no files! -

View comment(s) (filtered by alkalinity in subject)

Files and Comments for ph

Files

Plot files re. pH
[+]: - no files! -

Data files re. pH
[+]: - no files! -

View comment(s) (filtered by ph in subject)

Files and Comments for pco2

Files

Plot files re. pCO₂
[+]: - no files! -

Data files re. pCO₂
[+]: - no files! -

View comment(s) (filtered by pco2 in subject)

Files and Comments for nitrate

Files

Plot files re. Nitrate
[x]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/nitrate!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/nitrate!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/nitrate!]	View
316N20060130_Xover.png	[autogenerated from RC_Nico/nitrate!]	View
NO_3_MLR.png		View
Redfield_SO_comparison.png		View
Xresults.png	[autogenerated from RC_Nico/nitrate!]	View

Data files re. Nitrate
[x]: - no files! -

View comment(s) (filtered by nitrate in subject)

Files and Comments for phosphate

Files

Plot files re. Phosphate
[x]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/phosphate!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/phosphate!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/phosphate!]	View
316N20060130_Xover.png	[autogenerated from RC_Nico/phosphate!]	View
320620151206_Xover.png	[autogenerated from RC_Nico/phosphate!]	View
Xresults.png	[autogenerated from RC_Nico/phosphate!]	View

Data files re. Phosphate
[x]: - no files! -

View comment(s) (filtered by phosphate in subject)

Files and Comments for silicate

Files

Plot files re. Silicate
[x]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/silicate!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/silicate!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/silicate!]	View
316N20060130_Xover.png	[autogenerated from RC_Nico/silicate!]	View
SiOH_4_MLR.png		View
Xresults.png	[autogenerated from RC_Nico/silicate!]	View

Data files re. Silicate
[x]: - no files! -

View comment(s) (filtered by silicate in subject)

Files and Comments for oxygen

Files

Plot files re. Oxygen
[x]:

Filename:	Comment:	Action…
316N19921204_Xover.png	[autogenerated from RC_Nico/oxygen!]	View
316N19930222_Xover.png	[autogenerated from RC_Nico/oxygen!]	View
316N20050821_Xover.png	[autogenerated from RC_Nico/oxygen!]	View
316N20060130_Xover.png	[autogenerated from RC_Nico/oxygen!]	View
31DS19940126_Xover.png	[autogenerated from RC_Nico/oxygen!]	View
320620151206_Xover.png	[autogenerated from RC_Nico/oxygen!]	View
MLR_O2.png		View
O2_PO4_SO_comparison.png		View
Xresults.png	[autogenerated from RC_Nico/oxygen!]	View

Data files re. Oxygen
[x]: - no files! -

View comment(s) (filtered by oxygen in subject)

Files and Comments for ctd_oxygen

Files

Plot files re. CTD-Oxyg. [x]
adj. - slope/intercept - action [ID]: - no files! -

Data files re. CTD-Oxyg. [x]
adj. - slope/intercept - action [ID]: - no files! -

Dataproduct: GLODAPv2.2023 :: Adjustments

Cruise: 74EQ20191202 (dataset:GLODAPv2.2023) Data product: GLODAPv2.2023 Successor: GLODAPv3

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GLODAPv3 release: converted value for silicate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: converted value for phosphate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: converted value for oxygen_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: converted value for nitrate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: autogenerated silicate update for 74EQ20191202[1-last]

74EQ20191202[1-last] GLODAPv3 release

GLODAPv3 release: temperature added as NEW adjustment parameter to 74EQ20191202[1-last]

74EQ20191202[1-last] GLODAPv3 release

GLODAPv3 release: autogenerated tco2 update for 74EQ20191202

74EQ20191202 GLODAPv3 release

GLODAPv3 release: autogenerated salinity update for 74EQ20191202

74EQ20191202 GLODAPv3 release

GLODAPv3 release: autogenerated phosphate update for 74EQ20191202

74EQ20191202 GLODAPv3 release

GLODAPv3 release: autogenerated oxygen update for 74EQ20191202

74EQ20191202 GLODAPv3 release

GLODAPv3 release: autogenerated nitrate update for 74EQ20191202

74EQ20191202 GLODAPv3 release

GLODAPv3 release: autogenerated alkalinity update for 74EQ20191202

74EQ20191202 GLODAPv3 release

74EQ20191202 - alkalinity

74EQ20191202 - oxygen

74EQ20191202 - silicate

74EQ20191202 - nitrate

74EQ20191202 - oxygen

74EQ20191202 - alkalinity

74EQ20191202 - initialized

GLODAPv3 release: autogenerated salinity update for 74EQ20191202

GLODAPv3 release: autogenerated tco2 update for 74EQ20191202

GLODAPv3 release: autogenerated alkalinity update for 74EQ20191202

74EQ20191202 - alkalinity

74EQ20191202 - alkalinity

GLODAPv3 release: converted value for phosphate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: autogenerated phosphate update for 74EQ20191202

GLODAPv3 release: converted value for nitrate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: autogenerated nitrate update for 74EQ20191202

74EQ20191202 - nitrate

GLODAPv3 release: converted value for phosphate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: autogenerated phosphate update for 74EQ20191202

GLODAPv3 release: converted value for silicate_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: autogenerated silicate update for 74EQ20191202[1-last]

74EQ20191202 - silicate

GLODAPv3 release: converted value for oxygen_offset from percent to factor for 74EQ20191202[1-last]

GLODAPv3 release: autogenerated oxygen update for 74EQ20191202

74EQ20191202 - oxygen

74EQ20191202 - oxygen