Cruise: 49UF20100811 (dataset:GLODAPv2.2019) Data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023 Successor: GLODAPv3
Synonyms (including errata!) for this cruise: ks201110; ks201110; 49UF20100811; Section:PT;
IMPORTANT information for GLODAP Reference Group Editors: This adjustment version is immutable and published in GLODAPv2.2019! Click here to switch to new version (GLODAPv2.2019)
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| Filename: | Comment: | Action | |
|---|---|---|---|
| Redfield.png | View | ||

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:14
cruise:1
nitrate:11
oxygen:12
ph:15
phosphate:11
salinity:11
silicate:12
tco2:16


| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850804_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49K619990523_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49RY20110515_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49RY20120726_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49UF20080617_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49UP20030425_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| 49UP20070606_Xover.png | [autogenerated from RC_Nico/salinity!] |
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| Xresults.png | [autogenerated from RC_Nico/salinity!] |
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View comment(s) (filtered by salinity in subject)
GLODAPv3 release: autogenerated salinity update for 49UF20100811
GLODAPv3 release: salinity update of 49UF20100811 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: -0.0002; preadjustment: 0;
offsets_raw: 0.0005; offsets_preadj: 0.0004; offsets_preadj_u: 0.0007;
offsets_post: 0.0003; offsets_post_u: 0.0007; offsets_post_rt: 0.0003;
numberofxovers: 71; trends_pre: 0.0000; trends_adj: 0.0000.
Posted by nlange@geomar.de on 2026-08-04 17:11:46 UTC for data product: GLODAPv3
49UF20100811 - salinity
Extremely large standard deviations are striking (as is the variability), hence
a robust conclusion is not possible. However, the total weighted mean is clearly
within the acceptable range. The individual profiles look acceptable, too.
Maintain
Posted by nlange@geomar.de on 2018-09-18 14:13:06 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023



| Filename: | Comment: | Action | |
|---|---|---|---|
| 322019920816_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ19971111_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ19981030_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ20010604_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ20030220_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ20040807_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ20070904_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49NZ20081011_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/tco2!] |
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| 49UP20050615_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49UP20060607_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/tco2!] |
View | |

View comment(s) (filtered by tco2 in subject)
GLODAPv3 release: autogenerated tco2 update for 49UF20100811
GLODAPv3 release: tco2 update of 49UF20100811 based on tco2_offset: -4.4;
inversion: -4.4; inversion_full: -4.4; preadjustment: 0; offsets_raw: 4.6;
offsets_preadj: 4.5; offsets_preadj_u: 0.4; offsets_post: 0.0; offsets_post_u:
0.3; offsets_post_rt: -0.0; numberofxovers: 33; trends_pre: 0.2; trends_adj:
0.1.
Posted by nlange@geomar.de on 2026-08-04 17:12:17 UTC for data product: GLODAPv3
49UF20100811 - tco2
All crossovers indicate too high concentrations. The agreement is striking and
the uncertainty is "reasonable" for most crossovers even if the depth is
limited. The offset is visible at all measured depths and locations. Adjust
downward accordingly to the absolute weighted mean.
Posted by nlange@geomar.de on 2018-09-18 14:10:12 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

| Filename: | Comment: | Action | |
|---|---|---|---|
| 322019920816_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ19971111_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ19981030_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20000105_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20010604_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20040807_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
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| 49NZ20070904_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20081011_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/alkalinity!] |
View | |

View comment(s) (filtered by alkalinity in subject)
GLODAPv3 release: autogenerated alkalinity update for 49UF20100811
GLODAPv3 release: alkalinity update of 49UF20100811 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: 2.9; preadjustment: 0; offsets_raw: -4.8;
offsets_preadj: -4.8; offsets_preadj_u: 2.1; offsets_post: -3.1; offsets_post_u:
0.9; offsets_post_rt: -3.1; numberofxovers: 29; trends_pre: 0.0; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 13:46:30 UTC for data product: GLODAPv3
49UF20100811 - alkalinity
The spread and limited depth of the data makes the 2nd QC difficult. Even though
the absolute weighted mean offset is slightly below -4. I have too many doubts
to adjust accordingly. Maintain.
Posted by nlange@geomar.de on 2018-09-18 14:10:37 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

| Filename: | Comment: | Action | |
|---|---|---|---|
| 322019920816_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ19971111_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ19981030_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20000105_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20010604_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20030220_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20040807_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20070904_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20081011_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/ph!] |
View | |

View comment(s) (filtered by ph in subject)
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 49UF20100811[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 16:37:47 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 49UF20100811
GLODAPv3 release: phosphate update of 49UF20100811 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: 0.9; preadjustment: 0; offsets_raw: -1.1;
offsets_preadj: -1.0; offsets_preadj_u: 0.2; offsets_post: -0.9; offsets_post_u:
0.1; offsets_post_rt: -1.0; numberofxovers: 71; trends_pre: -0.0; trends_adj:
-0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:32 UTC for data product: GLODAPv3
49UF20100811 - ph
All crossovers (14 significant) indicate a strongly negative bias (-0.02). The
interconsistency check (type 2) confirms the bias even though the magnitude is
higher (offset of -0.025). Having the uncertainty of the accuracy of TA in mind
adjust accordingly to the absolute mean.
Posted by nlange@geomar.de on 2018-09-18 14:14:27 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - phosphate
It is striking that all offsets above 1 (still within the 2% range) are based on
crossovers with UP or UF cruises. All other crossovers rather indicate too low
concentrations - independant of location or time. Nonetheless most offsets are
within the 2% range, i.e. maintain.
Posted by nlange@geomar.de on 2018-09-18 14:12:19 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023



| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850804_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49RY20120726_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UF20080617_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UP20030425_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UP20070606_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/nitrate!] |
View | |

View comment(s) (filtered by nitrate in subject)
GLODAPv3 release: converted value for nitrate_offset from percent to factor for 49UF20100811[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for nitrate_offset from percent
to factor: 1.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:22 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 49UF20100811
GLODAPv3 release: nitrate update of 49UF20100811 based on nitrate_offset: 0.0;
inversion: 0.0; inversion_full: -0.2; preadjustment: 0; offsets_raw: 0.4;
offsets_preadj: 0.3; offsets_preadj_u: 0.1; offsets_post: 0.3; offsets_post_u:
0.1; offsets_post_rt: 0.3; numberofxovers: 73; trends_pre: 0.0; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:05 UTC for data product: GLODAPv3
49UF20100811 - nitrate
All but two offsets are clearly within the acceptable range. Note that most UP
cruises have lower concentrations and that the data is quite scattery in
general. Maintain.
Posted by nlange@geomar.de on 2018-09-18 14:11:51 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850804_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49RY20120726_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UF20080617_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UP20030425_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UP20070606_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/phosphate!] |
View | |

View comment(s) (filtered by phosphate in subject)
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 49UF20100811[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 16:37:47 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 49UF20100811
GLODAPv3 release: phosphate update of 49UF20100811 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: 0.9; preadjustment: 0; offsets_raw: -1.1;
offsets_preadj: -1.0; offsets_preadj_u: 0.2; offsets_post: -0.9; offsets_post_u:
0.1; offsets_post_rt: -1.0; numberofxovers: 71; trends_pre: -0.0; trends_adj:
-0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:32 UTC for data product: GLODAPv3
49UF20100811 - phosphate
It is striking that all offsets above 1 (still within the 2% range) are based on
crossovers with UP or UF cruises. All other crossovers rather indicate too low
concentrations - independant of location or time. Nonetheless most offsets are
within the 2% range, i.e. maintain.
Posted by nlange@geomar.de on 2018-09-18 14:12:19 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850804_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49NZ20081011_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49RY20120726_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UF20080617_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UP20030425_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UP20070606_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/silicate!] |
View | |

View comment(s) (filtered by silicate in subject)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 49UF20100811[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for silicate_offset from percent
to factor: 1.0.
Posted by nlange@geomar.de on 2026-08-05 16:38:01 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 49UF20100811[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 49UF20100811[1-last] based on
silicate_offset: 0.0; inversion: 0.0; inversion_full: -0.4; preadjustment: 0;
offsets_raw: 0.6; offsets_preadj: 0.6; offsets_preadj_u: 0.1; offsets_post: 0.5;
offsets_post_u: 0.1; offsets_post_rt: 0.5; numberofxovers: 70; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-05 14:17:30 UTC for data product: GLODAPv3
49UF20100811 - silicate
All mean offsets are above 1 (most of them even if uncertainty is included). The
agreement is very nice and gives confidence even for a smaller adjustment.
Adjust according to the absolute weighted mean.
Posted by nlange@geomar.de on 2018-09-18 14:13:38 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850804_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49HG20000912_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49HH19910813_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49K619990523_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49NZ20060526_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49NZ20071008_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49RY20110515_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49RY20120726_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UF20080617_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UP20030425_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UP20070606_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/oxygen!] |
View | |

View comment(s) (filtered by oxygen in subject)
GLODAPv3 release: converted value for oxygen_offset from percent to factor for 49UF20100811[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 16:37:34 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 49UF20100811
GLODAPv3 release: oxygen update of 49UF20100811 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: -0.3; preadjustment: 0; offsets_raw: 0.3;
offsets_preadj: 0.3; offsets_preadj_u: 0.4; offsets_post: 0.3; offsets_post_u:
0.4; offsets_post_rt: 0.3; numberofxovers: 70; trends_pre: -0.1; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:18 UTC for data product: GLODAPv3
49UF20100811 - oxygen
The limited depth causes extreme uncertainty in all crossovers (typical for this
region). However, it can nicely be seen that in most cases the rather strong
offset at "smaller" depths reduces strongly towards the deepest sample, see RY
crossovers examplarily. Maintain.
Posted by nlange@geomar.de on 2018-09-18 14:11:15 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023














View 29 comment(s) (Lists all comments)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 49UF20100811[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for silicate_offset from percent
to factor: 1.0.
Posted by nlange@geomar.de on 2026-08-05 16:38:01 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 49UF20100811[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 16:37:47 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for oxygen_offset from percent to factor for 49UF20100811[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 16:37:34 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for nitrate_offset from percent to factor for 49UF20100811[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for nitrate_offset from percent
to factor: 1.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:22 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 49UF20100811[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 49UF20100811[1-last] based on
silicate_offset: 0.0; inversion: 0.0; inversion_full: -0.4; preadjustment: 0;
offsets_raw: 0.6; offsets_preadj: 0.6; offsets_preadj_u: 0.1; offsets_post: 0.5;
offsets_post_u: 0.1; offsets_post_rt: 0.5; numberofxovers: 70; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-05 14:17:30 UTC for data product: GLODAPv3
49UF20100811[1-last] GLODAPv3 release
GLODAPv3 release: silicate autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-05 14:17:30 UTC for data product: GLODAPv3
GLODAPv3 release: temperature added as NEW adjustment parameter to 49UF20100811[1-last]
Automated addition of temperature as NEW parameter to 49UF20100811[1-last] based
on temperature_offset: 0.
Posted by nlange@geomar.de on 2026-08-05 14:17:16 UTC for data product: GLODAPv3
49UF20100811[1-last] GLODAPv3 release
Automated addition of temperature as NEW adjustment parameter in GLODAPv3 to
49UF20100811[1-last] - select parameter to view annotation with specific
details.
Posted by nlange@geomar.de on 2026-08-05 14:17:16 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated tco2 update for 49UF20100811
GLODAPv3 release: tco2 update of 49UF20100811 based on tco2_offset: -4.4;
inversion: -4.4; inversion_full: -4.4; preadjustment: 0; offsets_raw: 4.6;
offsets_preadj: 4.5; offsets_preadj_u: 0.4; offsets_post: 0.0; offsets_post_u:
0.3; offsets_post_rt: -0.0; numberofxovers: 33; trends_pre: 0.2; trends_adj:
0.1.
Posted by nlange@geomar.de on 2026-08-04 17:12:17 UTC for data product: GLODAPv3
49UF20100811 GLODAPv3 release
GLODAPv3 release: tco2 autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:12:17 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated salinity update for 49UF20100811
GLODAPv3 release: salinity update of 49UF20100811 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: -0.0002; preadjustment: 0;
offsets_raw: 0.0005; offsets_preadj: 0.0004; offsets_preadj_u: 0.0007;
offsets_post: 0.0003; offsets_post_u: 0.0007; offsets_post_rt: 0.0003;
numberofxovers: 71; trends_pre: 0.0000; trends_adj: 0.0000.
Posted by nlange@geomar.de on 2026-08-04 17:11:46 UTC for data product: GLODAPv3
49UF20100811 GLODAPv3 release
GLODAPv3 release: salinity autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:46 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 49UF20100811
GLODAPv3 release: phosphate update of 49UF20100811 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: 0.9; preadjustment: 0; offsets_raw: -1.1;
offsets_preadj: -1.0; offsets_preadj_u: 0.2; offsets_post: -0.9; offsets_post_u:
0.1; offsets_post_rt: -1.0; numberofxovers: 71; trends_pre: -0.0; trends_adj:
-0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:32 UTC for data product: GLODAPv3
49UF20100811 GLODAPv3 release
GLODAPv3 release: phosphate autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:32 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 49UF20100811
GLODAPv3 release: oxygen update of 49UF20100811 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: -0.3; preadjustment: 0; offsets_raw: 0.3;
offsets_preadj: 0.3; offsets_preadj_u: 0.4; offsets_post: 0.3; offsets_post_u:
0.4; offsets_post_rt: 0.3; numberofxovers: 70; trends_pre: -0.1; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:18 UTC for data product: GLODAPv3
49UF20100811 GLODAPv3 release
GLODAPv3 release: oxygen autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:18 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 49UF20100811
GLODAPv3 release: nitrate update of 49UF20100811 based on nitrate_offset: 0.0;
inversion: 0.0; inversion_full: -0.2; preadjustment: 0; offsets_raw: 0.4;
offsets_preadj: 0.3; offsets_preadj_u: 0.1; offsets_post: 0.3; offsets_post_u:
0.1; offsets_post_rt: 0.3; numberofxovers: 73; trends_pre: 0.0; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:05 UTC for data product: GLODAPv3
49UF20100811 GLODAPv3 release
GLODAPv3 release: nitrate autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:05 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated alkalinity update for 49UF20100811
GLODAPv3 release: alkalinity update of 49UF20100811 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: 2.9; preadjustment: 0; offsets_raw: -4.8;
offsets_preadj: -4.8; offsets_preadj_u: 2.1; offsets_post: -3.1; offsets_post_u:
0.9; offsets_post_rt: -3.1; numberofxovers: 29; trends_pre: 0.0; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 13:46:30 UTC for data product: GLODAPv3
49UF20100811 GLODAPv3 release
GLODAPv3 release: alkalinity autogenerated adjustment parameter update for
49UF20100811 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 13:46:30 UTC for data product: GLODAPv3
49UF20100811 - ph
All crossovers (14 significant) indicate a strongly negative bias (-0.02). The
interconsistency check (type 2) confirms the bias even though the magnitude is
higher (offset of -0.025). Having the uncertainty of the accuracy of TA in mind
adjust accordingly to the absolute mean.
Posted by nlange@geomar.de on 2018-09-18 14:14:27 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - silicate
All mean offsets are above 1 (most of them even if uncertainty is included). The
agreement is very nice and gives confidence even for a smaller adjustment.
Adjust according to the absolute weighted mean.
Posted by nlange@geomar.de on 2018-09-18 14:13:38 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - salinity
Extremely large standard deviations are striking (as is the variability), hence
a robust conclusion is not possible. However, the total weighted mean is clearly
within the acceptable range. The individual profiles look acceptable, too.
Maintain
Posted by nlange@geomar.de on 2018-09-18 14:13:06 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - phosphate
It is striking that all offsets above 1 (still within the 2% range) are based on
crossovers with UP or UF cruises. All other crossovers rather indicate too low
concentrations - independant of location or time. Nonetheless most offsets are
within the 2% range, i.e. maintain.
Posted by nlange@geomar.de on 2018-09-18 14:12:19 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - nitrate
All but two offsets are clearly within the acceptable range. Note that most UP
cruises have lower concentrations and that the data is quite scattery in
general. Maintain.
Posted by nlange@geomar.de on 2018-09-18 14:11:51 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - oxygen
The limited depth causes extreme uncertainty in all crossovers (typical for this
region). However, it can nicely be seen that in most cases the rather strong
offset at "smaller" depths reduces strongly towards the deepest sample, see RY
crossovers examplarily. Maintain.
Posted by nlange@geomar.de on 2018-09-18 14:11:15 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - alkalinity
The spread and limited depth of the data makes the 2nd QC difficult. Even though
the absolute weighted mean offset is slightly below -4. I have too many doubts
to adjust accordingly. Maintain.
Posted by nlange@geomar.de on 2018-09-18 14:10:37 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - tco2
All crossovers indicate too high concentrations. The agreement is striking and
the uncertainty is "reasonable" for most crossovers even if the depth is
limited. The offset is visible at all measured depths and locations. Adjust
downward accordingly to the absolute weighted mean.
Posted by nlange@geomar.de on 2018-09-18 14:10:12 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
49UF20100811 - initialized
non-GO-SHIP but on GO-SHIP line:P13; Carbon PI:Hitomi Kamiya; Hydrography
PI:Hitomi Kamiya; Oxygen PI:Hitomi Kamiya; Nutrients PI:Hitomi Kamiya; Organic
PI:Masao Ishii; Carbon Isotope PI:Masao Ishii
Posted by nlange@geomar.de on 2018-09-04 08:19:35 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023
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