Cruise: 49UF20121024 (dataset:GLODAPv2.2019) Data product: GLODAPv2.2019 Successor: GLODAPv2.2020, v2.2021, v2.2022, v2.2023
Synonyms (including errata!) for this cruise: ks201208; ks201208; 49UF20121024; non-GO-SHIP but on GO-SHIP line:P03; Section:OK, PN, JS;
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 | ||
| tracer.png | View | ||

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:3
cfc11:1
cfc12:1
cruise:2
nitrate:12
oxygen:12
ph:3
phosphate:11
salinity:12
silicate:12
tco2:4


| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850330_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49K619960620_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49NZ20051031_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49RY19940707_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49RY19951115_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49SH20081021_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49UF20070117_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49UF20070424_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49UF20080422_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49UP20100706_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| Xresults.png | [autogenerated from RC_Nico/salinity!] |
View | |

View comment(s) (filtered by salinity in subject)
GLODAPv3 release: autogenerated salinity update for 49UF20121024
GLODAPv3 release: salinity update of 49UF20121024 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: 0.0006; preadjustment: 0;
offsets_raw: 0.0002; offsets_preadj: 0.0001; offsets_preadj_u: 0.0003;
offsets_post: -0.0001; offsets_post_u: 0.0003; offsets_post_rt: 0.0000;
numberofxovers: 104; trends_pre: -0.0001; trends_adj: -0.0001.
Posted by nlange@geomar.de on 2026-08-04 17:11:46 UTC for data product: GLODAPv3
49UF20121024 - salinity
There are only few crossovers which compare deep samples, hence the great
variety of offsets. Most crossovers with an acceptable standard deviation, e.g.
RY1994, UP2010 indicate accurate data. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:45:17 UTC for data product: GLODAPv2.2019



| Filename: | Comment: | Action | |
|---|---|---|---|
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49NZ20051031_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 49SH20081021_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 49UF20121024
GLODAPv3 release: tco2 update of 49UF20121024 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: -1.9; preadjustment: 0; offsets_raw: 1.4;
offsets_preadj: 1.8; offsets_preadj_u: 0.4; offsets_post: 1.6; offsets_post_u:
0.3; offsets_post_rt: 1.3; numberofxovers: 56; trends_pre: 0.3; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:12:17 UTC for data product: GLODAPv3
49UF20121024 - tco2
Only three significant crossovers are present which are based on only "shallow"
samples. Maybe there is a bias with too high concentrations (not confirmed by
less significant crossovers), but there is not enough information for a robust
2nd QC/adjustment.
Posted by nlange@geomar.de on 2018-09-18 16:43:41 UTC for data product: GLODAPv2.2019

| Filename: | Comment: | Action | |
|---|---|---|---|
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 49NZ20051031_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 49UF20121024
GLODAPv3 release: alkalinity update of 49UF20121024 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: 0.4; preadjustment: 0; offsets_raw: -0.8;
offsets_preadj: -0.1; offsets_preadj_u: 0.8; offsets_post: -0.6; offsets_post_u:
0.5; offsets_post_rt: -1.0; numberofxovers: 52; trends_pre: 0.4; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 13:46:30 UTC for data product: GLODAPv3
49UF20121024 - alkalinity
Adjusted following RG meeting and additional Japanese Sea revision.
Posted by nlange@geomar.de on 2020-06-10 12:51:51 UTC for data product: GLODAPv2.2020, v2.2021, v2.2022, v2.2023
49UF20121024 - alkalinity
Only two significant crossovers which are based on only "shallow" samples, hence
the large standard deviations. Not enough for a robust 2nd QC.
Posted by nlange@geomar.de on 2018-09-18 16:43:53 UTC for data product: GLODAPv2.2019

| Filename: | Comment: | Action | |
|---|---|---|---|
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 49NZ20051031_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 49UF20121024[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 49UF20121024
GLODAPv3 release: phosphate update of 49UF20121024 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: 0.4; preadjustment: 0; offsets_raw: -0.5;
offsets_preadj: -0.5; offsets_preadj_u: 0.1; offsets_post: -0.4; offsets_post_u:
0.1; offsets_post_rt: -0.4; numberofxovers: 105; 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
49UF20121024 - ph
Crossovers are far from reliable… further no clear bias can be detected from the
interconsistency check (type 2).
Posted by nlange@geomar.de on 2018-09-18 16:46:01 UTC for data product: GLODAPv2.2019
49UF20121024 - phosphate
Only three crossovers with significant deep comparisons (>2500m) are present.
All of those have offsets close to 0.99. The other crossovers confirm this small
offset. Still, I am not confident enough for such a small adjustment. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:55 UTC for data product: GLODAPv2.2019



| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850330_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49K619960620_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49NZ20051031_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49RY19940707_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49RY19951115_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49SH20081021_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UF20070117_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UF20070424_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UF20080422_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49UP20100706_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 49UF20121024[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 49UF20121024
GLODAPv3 release: nitrate update of 49UF20121024 based on nitrate_offset: 0.0;
inversion: 0.0; inversion_full: 0.3; preadjustment: 0; offsets_raw: -0.4;
offsets_preadj: -0.4; offsets_preadj_u: 0.1; offsets_post: -0.4; offsets_post_u:
0.1; offsets_post_rt: -0.4; numberofxovers: 106; 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
49UF20121024 - nitrate
Only three crossovers with significant deep comparisons (>2500m). All of those
have offsets close to 1. All other crossovers (minimum depth of 1500m) confirm
this. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:32 UTC for data product: GLODAPv2.2019

| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850330_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49NZ20051031_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49RY19940707_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49RY19951115_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49SH20081021_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UF20070117_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UF20070424_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UF20080422_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 49UP20100706_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 49UF20121024[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 49UF20121024
GLODAPv3 release: phosphate update of 49UF20121024 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: 0.4; preadjustment: 0; offsets_raw: -0.5;
offsets_preadj: -0.5; offsets_preadj_u: 0.1; offsets_post: -0.4; offsets_post_u:
0.1; offsets_post_rt: -0.4; numberofxovers: 105; 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
49UF20121024 - phosphate
Only three crossovers with significant deep comparisons (>2500m) are present.
All of those have offsets close to 0.99. The other crossovers confirm this small
offset. Still, I am not confident enough for such a small adjustment. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:55 UTC for data product: GLODAPv2.2019

| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850330_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49K619960620_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49NZ20051031_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49RY19940707_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49RY19951115_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49SH20081021_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UF20070117_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UF20070424_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UF20080422_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49UP20100706_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 49UF20121024[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 49UF20121024[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 49UF20121024[1-last] based on
silicate_offset: 0.0; inversion: 0.0; inversion_full: 0.5; preadjustment: 0;
offsets_raw: -0.6; offsets_preadj: -0.6; offsets_preadj_u: 0.2; offsets_post:
-0.4; offsets_post_u: 0.1; offsets_post_rt: -0.5; numberofxovers: 95;
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
49UF20121024 - silicate
All but one offset are clearly within the acceptable range. Even though the
majority of the crossovers is limited in depth the agremeent leads to confidence
about the good accuracy. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:45:45 UTC for data product: GLODAPv2.2019

| Filename: | Comment: | Action | |
|---|---|---|---|
| 325019850330_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49HG19971110_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49K619960620_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49NZ20051031_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49RY19940707_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49RY19951115_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49SH20081021_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UF20070117_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UF20070424_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UF20080422_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49UP20100706_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 49UF20121024[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 49UF20121024
GLODAPv3 release: oxygen update of 49UF20121024 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: 0.0; preadjustment: 0; offsets_raw: 0.3;
offsets_preadj: 0.1; offsets_preadj_u: 0.1; offsets_post: 0.1; offsets_post_u:
0.1; offsets_post_rt: 0.4; numberofxovers: 108; trends_pre: -0.0; trends_adj:
-0.1.
Posted by nlange@geomar.de on 2026-08-04 17:11:18 UTC for data product: GLODAPv3
49UF20121024 - oxygen
There are only few crossovers which compare deep samples, hence the great
variety of offsets. Anyway, it can be seen that the offsets diminish towards
greater depths. Most crossovers with an acceptable standard deviation, e.g.
RY1994, UP2010 indicate accurate data. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:17 UTC for data product: GLODAPv2.2019



View comment(s) (filtered by cfc12 in subject)
49UF20121024 - cfc12
There are only three stations for which a surface saturation ratio can be
calculated. These show quite a large variability but all within +/- 6% around
the equilibrium. The fit with CFC_11 data is based on a fair amount of samples
and nicely follows the prediction. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:46:49 UTC for data product: GLODAPv2.2019

View comment(s) (filtered by cfc11 in subject)
49UF20121024 - cfc11
There are only three station for which a surface saturation ratio can be
calculated. These show a slight oversaturaton just on the 5% upper limit. The
fit with CFC_12 data is based on a fair amount of samples and also indicates a
5% oversaturation. Given the limited amount of data, maintain.
Posted by nlange@geomar.de on 2018-09-18 16:46:22 UTC for data product: GLODAPv2.2019








View 32 comment(s) (Lists all comments)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 49UF20121024[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 49UF20121024[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 49UF20121024[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 49UF20121024[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 49UF20121024[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 49UF20121024[1-last] based on
silicate_offset: 0.0; inversion: 0.0; inversion_full: 0.5; preadjustment: 0;
offsets_raw: -0.6; offsets_preadj: -0.6; offsets_preadj_u: 0.2; offsets_post:
-0.4; offsets_post_u: 0.1; offsets_post_rt: -0.5; numberofxovers: 95;
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
49UF20121024[1-last] GLODAPv3 release
GLODAPv3 release: silicate autogenerated adjustment parameter update for
49UF20121024 - 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 49UF20121024[1-last]
Automated addition of temperature as NEW parameter to 49UF20121024[1-last] based
on temperature_offset: 0.
Posted by nlange@geomar.de on 2026-08-05 14:17:16 UTC for data product: GLODAPv3
49UF20121024[1-last] GLODAPv3 release
Automated addition of temperature as NEW adjustment parameter in GLODAPv3 to
49UF20121024[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 49UF20121024
GLODAPv3 release: tco2 update of 49UF20121024 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: -1.9; preadjustment: 0; offsets_raw: 1.4;
offsets_preadj: 1.8; offsets_preadj_u: 0.4; offsets_post: 1.6; offsets_post_u:
0.3; offsets_post_rt: 1.3; numberofxovers: 56; trends_pre: 0.3; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:12:17 UTC for data product: GLODAPv3
49UF20121024 GLODAPv3 release
GLODAPv3 release: tco2 autogenerated adjustment parameter update for
49UF20121024 - 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 49UF20121024
GLODAPv3 release: salinity update of 49UF20121024 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: 0.0006; preadjustment: 0;
offsets_raw: 0.0002; offsets_preadj: 0.0001; offsets_preadj_u: 0.0003;
offsets_post: -0.0001; offsets_post_u: 0.0003; offsets_post_rt: 0.0000;
numberofxovers: 104; trends_pre: -0.0001; trends_adj: -0.0001.
Posted by nlange@geomar.de on 2026-08-04 17:11:46 UTC for data product: GLODAPv3
49UF20121024 GLODAPv3 release
GLODAPv3 release: salinity autogenerated adjustment parameter update for
49UF20121024 - 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 49UF20121024
GLODAPv3 release: phosphate update of 49UF20121024 based on phosphate_offset:
0.0; inversion: 0.0; inversion_full: 0.4; preadjustment: 0; offsets_raw: -0.5;
offsets_preadj: -0.5; offsets_preadj_u: 0.1; offsets_post: -0.4; offsets_post_u:
0.1; offsets_post_rt: -0.4; numberofxovers: 105; 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
49UF20121024 GLODAPv3 release
GLODAPv3 release: phosphate autogenerated adjustment parameter update for
49UF20121024 - 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 49UF20121024
GLODAPv3 release: oxygen update of 49UF20121024 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: 0.0; preadjustment: 0; offsets_raw: 0.3;
offsets_preadj: 0.1; offsets_preadj_u: 0.1; offsets_post: 0.1; offsets_post_u:
0.1; offsets_post_rt: 0.4; numberofxovers: 108; trends_pre: -0.0; trends_adj:
-0.1.
Posted by nlange@geomar.de on 2026-08-04 17:11:18 UTC for data product: GLODAPv3
49UF20121024 GLODAPv3 release
GLODAPv3 release: oxygen autogenerated adjustment parameter update for
49UF20121024 - 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 49UF20121024
GLODAPv3 release: nitrate update of 49UF20121024 based on nitrate_offset: 0.0;
inversion: 0.0; inversion_full: 0.3; preadjustment: 0; offsets_raw: -0.4;
offsets_preadj: -0.4; offsets_preadj_u: 0.1; offsets_post: -0.4; offsets_post_u:
0.1; offsets_post_rt: -0.4; numberofxovers: 106; 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
49UF20121024 GLODAPv3 release
GLODAPv3 release: nitrate autogenerated adjustment parameter update for
49UF20121024 - 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 49UF20121024
GLODAPv3 release: alkalinity update of 49UF20121024 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: 0.4; preadjustment: 0; offsets_raw: -0.8;
offsets_preadj: -0.1; offsets_preadj_u: 0.8; offsets_post: -0.6; offsets_post_u:
0.5; offsets_post_rt: -1.0; numberofxovers: 52; trends_pre: 0.4; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 13:46:30 UTC for data product: GLODAPv3
49UF20121024 GLODAPv3 release
GLODAPv3 release: alkalinity autogenerated adjustment parameter update for
49UF20121024 - 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
49UF20121024 - alkalinity
Adjusted following RG meeting and additional Japanese Sea revision.
Posted by nlange@geomar.de on 2020-06-10 12:51:51 UTC for data product: GLODAPv2.2020, v2.2021, v2.2022, v2.2023
49UF20121024 - cfc12
There are only three stations for which a surface saturation ratio can be
calculated. These show quite a large variability but all within +/- 6% around
the equilibrium. The fit with CFC_11 data is based on a fair amount of samples
and nicely follows the prediction. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:46:49 UTC for data product: GLODAPv2.2019
49UF20121024 - cfc11
There are only three station for which a surface saturation ratio can be
calculated. These show a slight oversaturaton just on the 5% upper limit. The
fit with CFC_12 data is based on a fair amount of samples and also indicates a
5% oversaturation. Given the limited amount of data, maintain.
Posted by nlange@geomar.de on 2018-09-18 16:46:22 UTC for data product: GLODAPv2.2019
49UF20121024 - ph
Crossovers are far from reliable… further no clear bias can be detected from the
interconsistency check (type 2).
Posted by nlange@geomar.de on 2018-09-18 16:46:01 UTC for data product: GLODAPv2.2019
49UF20121024 - silicate
All but one offset are clearly within the acceptable range. Even though the
majority of the crossovers is limited in depth the agremeent leads to confidence
about the good accuracy. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:45:45 UTC for data product: GLODAPv2.2019
49UF20121024 - salinity
There are only few crossovers which compare deep samples, hence the great
variety of offsets. Most crossovers with an acceptable standard deviation, e.g.
RY1994, UP2010 indicate accurate data. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:45:17 UTC for data product: GLODAPv2.2019
49UF20121024 - phosphate
Only three crossovers with significant deep comparisons (>2500m) are present.
All of those have offsets close to 0.99. The other crossovers confirm this small
offset. Still, I am not confident enough for such a small adjustment. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:55 UTC for data product: GLODAPv2.2019
49UF20121024 - nitrate
Only three crossovers with significant deep comparisons (>2500m). All of those
have offsets close to 1. All other crossovers (minimum depth of 1500m) confirm
this. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:32 UTC for data product: GLODAPv2.2019
49UF20121024 - oxygen
There are only few crossovers which compare deep samples, hence the great
variety of offsets. Anyway, it can be seen that the offsets diminish towards
greater depths. Most crossovers with an acceptable standard deviation, e.g.
RY1994, UP2010 indicate accurate data. Maintain.
Posted by nlange@geomar.de on 2018-09-18 16:44:17 UTC for data product: GLODAPv2.2019
49UF20121024 - alkalinity
Only two significant crossovers which are based on only "shallow" samples, hence
the large standard deviations. Not enough for a robust 2nd QC.
Posted by nlange@geomar.de on 2018-09-18 16:43:53 UTC for data product: GLODAPv2.2019
49UF20121024 - tco2
Only three significant crossovers are present which are based on only "shallow"
samples. Maybe there is a bias with too high concentrations (not confirmed by
less significant crossovers), but there is not enough information for a robust
2nd QC/adjustment.
Posted by nlange@geomar.de on 2018-09-18 16:43:41 UTC for data product: GLODAPv2.2019
49UF20121024 - initialized
non-GO-SHIP but on GO-SHIP line:P03; Section:OK, PN, JS; Carbon PI:Kazuhiro
Nemoto; Hydrography PI:Kazuhiro Nemoto; Oxygen PI:Kazuhiro Nemoto; Nutrients
PI:Kazuhiro Nemoto; Organic PI:Masao Ishii
Posted by nlange@geomar.de on 2018-09-04 08:19:34 UTC for data product: GLODAPv2.2019
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