Cruise: 06AQ20150817 (dataset:GLODAPv2.2019) Data product: GLODAPv3 Predecessor: GLODAPv2.2022, v2.2023
Synonyms (including errata!) for this cruise: PS94; 06AQ20150817; PS94
IMPORTANT information for GLODAP Reference Group Editors: This is the updated adjustment version (GLODAPv3) from GLODAPv2.2023! Click here to view previous (immutable) version (GLODAPv2.2023)
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| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20150817_cruise__CSTAR_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/adjustments for: 06AQ20150817[1-last] |
View | |

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:6
cruise:1
nitrate:5
oxygen:5
phosphate:5
salinity:5
silicate:5
tco2:5
temperature:2


| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_salinity__Xover_SAL.png | [GLODAPv3 release: autogenerated from RC_Nico/salinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_salinity__Xover_SAL.png | [GLODAPv3 release: autogenerated from RC_Nico/salinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_salinity__Xover_SAL.png | [GLODAPv3 release: autogenerated from RC_Nico/salinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_salinity__Xover_SAL_Nansen.png | [GLODAPv3 release: autogenerated from RC_Nico/salinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_salinity__SAL_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/salinity for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by salinity in subject)
GLODAPv3 release: autogenerated salinity update for 06AQ20150817
GLODAPv3 release: salinity update of 06AQ20150817 based on salinity_offset:
0.0000; 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 17:11:36 UTC for data product: GLODAPv3
06AQ20150817 - salinity
Crossovers indicate nice accuracy. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:42:48 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021



| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_tco2__Xover_DIC.png | [GLODAPv3 release: autogenerated from RC_Nico/tco2 for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_tco2__Xover_DIC.png | [GLODAPv3 release: autogenerated from RC_Nico/tco2 for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_tco2__Xover_DIC.png | [GLODAPv3 release: autogenerated from RC_Nico/tco2 for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_tco2__DIC_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/tco2 for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_tco2__DIC_norm_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/tco2 for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by tco2 in subject)
GLODAPv3 release: autogenerated tco2 update for 06AQ20150817
GLODAPv3 release: tco2 update of 06AQ20150817 based on tco2_offset: 0.0;
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 17:12:06 UTC for data product: GLODAPv3
06AQ20150817 - tco2
Crossovers indicate nice accuracy. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:41:07 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_alkalinity__Xover_ALK.png | [GLODAPv3 release: autogenerated from RC_Nico/alkalinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_alkalinity__Xover_ALK.png | [GLODAPv3 release: autogenerated from RC_Nico/alkalinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_alkalinity__Xover_ALK.png | [GLODAPv3 release: autogenerated from RC_Nico/alkalinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_alkalinity__Xover_ALK_Nansen.png | [GLODAPv3 release: autogenerated from RC_Nico/alkalinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_alkalinity__ALK_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/alkalinity for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_alkalinity__ALK_norm_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/alkalinity for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by alkalinity in subject)
GLODAPv3 release: autogenerated alkalinity update for 06AQ20150817
GLODAPv3 release: alkalinity update of 06AQ20150817 based on alkalinity_offset:
0.0; 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 13:46:21 UTC for data product: GLODAPv3
06AQ20150817 - alkalinity
4 out 5 crossovers have offsets clearly within the range. 18SN1994 has slightly
lower concentrations but all within the limits. Note the large standard
deviations though. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:41:27 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_nitrate__Xover_NO3.png | [GLODAPv3 release: autogenerated from RC_Nico/nitrate for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_nitrate__Xover_NO3.png | [GLODAPv3 release: autogenerated from RC_Nico/nitrate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_nitrate__Xover_NO3.png | [GLODAPv3 release: autogenerated from RC_Nico/nitrate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_nitrate__Xover_NO3_Nansen.png | [GLODAPv3 release: autogenerated from RC_Nico/nitrate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_nitrate__NO3_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/nitrate for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by nitrate in subject)
GLODAPv3 release: converted value for nitrate_offset from percent to factor for 06AQ20150817[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 16:37:14 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 06AQ20150817
GLODAPv3 release: nitrate update of 06AQ20150817 based on nitrate_offset: 0.0;
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 17:10:57 UTC for data product: GLODAPv3
06AQ20150817 - nitrate
All offsets are clearly within the range with vlaues > & < 1. Note that the
cruise data has far less scatter than historic data. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:42:20 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_phosphate__Xover_PO4.png | [GLODAPv3 release: autogenerated from RC_Nico/phosphate for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_phosphate__Xover_PO4.png | [GLODAPv3 release: autogenerated from RC_Nico/phosphate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_phosphate__Xover_PO4.png | [GLODAPv3 release: autogenerated from RC_Nico/phosphate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_phosphate__Xover_PO4_Nansen.png | [GLODAPv3 release: autogenerated from RC_Nico/phosphate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_phosphate__PO4_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/phosphate for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by phosphate in subject)
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 06AQ20150817[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 16:37:38 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 06AQ20150817
GLODAPv3 release: phosphate update of 06AQ20150817 based on phosphate_offset:
0.0; 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 17:11:22 UTC for data product: GLODAPv3
06AQ20150817 - phosphate
Variable crossover results but the absolute weighted mean is within the 2%
range. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:42:36 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_silicate__Xover_SIL.png | [GLODAPv3 release: autogenerated from RC_Nico/silicate for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_silicate__Xover_SIL.png | [GLODAPv3 release: autogenerated from RC_Nico/silicate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_silicate__Xover_SIL.png | [GLODAPv3 release: autogenerated from RC_Nico/silicate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_silicate__Xover_SIL_Nansen.png | [GLODAPv3 release: autogenerated from RC_Nico/silicate for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_silicate__SIL_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/silicate for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by silicate in subject)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 06AQ20150817[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 16:37:51 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 06AQ20150817[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 06AQ20150817[1-last] based on
silicate_offset: 0.0; 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 2026-08-05 14:17:21 UTC for data product: GLODAPv3
06AQ20150817 - silicate
Other Polarstern cruises indicate an ok accuarcy (offsets within a 1.5% range).
However, the two crossovers with Oden cruises (77DN) indicate at least 3% too
high concentrations. Nonetheless, this is not enough for an adjustment.
Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:43:07 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20070728_06AQ20150817_oxygen__Xover_O2.png | [GLODAPv3 release: autogenerated from RC_Nico/oxygen for: 06AQ20150817[1-last] |
View | |
| 06AQ20110805_06AQ20150817_oxygen__Xover_O2.png | [GLODAPv3 release: autogenerated from RC_Nico/oxygen for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_oxygen__Xover_O2.png | [GLODAPv3 release: autogenerated from RC_Nico/oxygen for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_77DN19910726_oxygen__Xover_O2_Nansen.png | [GLODAPv3 release: autogenerated from RC_Nico/oxygen for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_oxygen__O2_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/oxygen for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by oxygen in subject)
GLODAPv3 release: converted value for oxygen_offset from percent to factor for 06AQ20150817[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 16:37:25 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 06AQ20150817
GLODAPv3 release: oxygen update of 06AQ20150817 based on oxygen_offset: 0.0;
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 17:11:09 UTC for data product: GLODAPv3
06AQ20150817 - oxygen
All crossovers - but 77DN1991 - show offsets below 1. However, only the one
based on 06AQ1987 is slightly below the lower threshold. Especially the good fit
with 06AQ2007 gives confidence about the accuarcy of the data. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:41:49 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021



| Filename: | Comment: | Action | |
|---|---|---|---|
| 06AQ20150817_temperature__TEMP_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/temperature for: 06AQ20150817[1-last] |
View | |
| 06AQ20150817_temperature__THETA_DWA.png | [GLODAPv3 release: autogenerated from RC_Nico/temperature for: 06AQ20150817[1-last] |
View | |

View annotation(s) (filtered by temperature in subject)
GLODAPv3 release: temperature added as NEW adjustment parameter to 06AQ20150817[1-last]
Automated addition of temperature as NEW parameter to 06AQ20150817[1-last] based
on temperature_offset: 0.
Posted by nlange@geomar.de on 2026-08-05 14:17:08 UTC for data product: GLODAPv3


View annotation(s) (filtered by cfc12 in subject)
06AQ20150817 - cfc12
Even though the surafce saturation ratio is only 90% (probably natural causes),
the good fit between CFC_11 and CFC_12 indicates accurate data. Maintain
Posted by nlange@geomar.de on 2018-11-27 11:45:13 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021


View annotation(s) (filtered by cfc11 in subject)
06AQ20150817 - cfc11
Even though the surafce saturation ratio is only 90% (probably natural causes),
the good fit between CFC_11 and CFC_12 indicates accurate data. Maintain
Posted by nlange@geomar.de on 2018-11-27 11:45:01 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021








View 31 annotation(s) (Lists all annotations)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 06AQ20150817[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 16:37:51 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 06AQ20150817[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 16:37:38 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for oxygen_offset from percent to factor for 06AQ20150817[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 16:37:25 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for nitrate_offset from percent to factor for 06AQ20150817[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 16:37:14 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 06AQ20150817[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 06AQ20150817[1-last] based on
silicate_offset: 0.0; 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 2026-08-05 14:17:21 UTC for data product: GLODAPv3
06AQ20150817[1-last] GLODAPv3 release
GLODAPv3 release: silicate autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-05 14:17:21 UTC for data product: GLODAPv3
GLODAPv3 release: temperature added as NEW adjustment parameter to 06AQ20150817[1-last]
Automated addition of temperature as NEW parameter to 06AQ20150817[1-last] based
on temperature_offset: 0.
Posted by nlange@geomar.de on 2026-08-05 14:17:08 UTC for data product: GLODAPv3
06AQ20150817[1-last] GLODAPv3 release
Automated addition of temperature as NEW adjustment parameter in GLODAPv3 to
06AQ20150817[1-last] - select parameter to view annotation with specific
details.
Posted by nlange@geomar.de on 2026-08-05 14:17:08 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated tco2 update for 06AQ20150817
GLODAPv3 release: tco2 update of 06AQ20150817 based on tco2_offset: 0.0;
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 17:12:06 UTC for data product: GLODAPv3
06AQ20150817 GLODAPv3 release
GLODAPv3 release: tco2 autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:12:06 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated salinity update for 06AQ20150817
GLODAPv3 release: salinity update of 06AQ20150817 based on salinity_offset:
0.0000; 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 17:11:36 UTC for data product: GLODAPv3
06AQ20150817 GLODAPv3 release
GLODAPv3 release: salinity autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:36 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 06AQ20150817
GLODAPv3 release: phosphate update of 06AQ20150817 based on phosphate_offset:
0.0; 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 17:11:22 UTC for data product: GLODAPv3
06AQ20150817 GLODAPv3 release
GLODAPv3 release: phosphate autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:22 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 06AQ20150817
GLODAPv3 release: oxygen update of 06AQ20150817 based on oxygen_offset: 0.0;
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 17:11:09 UTC for data product: GLODAPv3
06AQ20150817 GLODAPv3 release
GLODAPv3 release: oxygen autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:09 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 06AQ20150817
GLODAPv3 release: nitrate update of 06AQ20150817 based on nitrate_offset: 0.0;
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 17:10:57 UTC for data product: GLODAPv3
06AQ20150817 GLODAPv3 release
GLODAPv3 release: nitrate autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:10:57 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated alkalinity update for 06AQ20150817
GLODAPv3 release: alkalinity update of 06AQ20150817 based on alkalinity_offset:
0.0; 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 13:46:21 UTC for data product: GLODAPv3
06AQ20150817 GLODAPv3 release
GLODAPv3 release: alkalinity autogenerated adjustment parameter update for
06AQ20150817 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 13:46:21 UTC for data product: GLODAPv3
06AQ20150817 - cfc12
Even though the surafce saturation ratio is only 90% (probably natural causes),
the good fit between CFC_11 and CFC_12 indicates accurate data. Maintain
Posted by nlange@geomar.de on 2018-11-27 11:45:13 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - cfc11
Even though the surafce saturation ratio is only 90% (probably natural causes),
the good fit between CFC_11 and CFC_12 indicates accurate data. Maintain
Posted by nlange@geomar.de on 2018-11-27 11:45:01 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - ph
The crossover analysis is not very trustworthy, as all standard deviations are
at least of the order of +/- 0.005. Further, only 5 crossovers exists in total.
However, it indicates a too high value (offset of 0.0085). The interconsistency
check (type 2) also indicates a too high value with an offset of 0.013 +/-
0.0238, i.e. above the threshold limit but accompanied by a large spread. Given
that both analyses agree quite well adjust downward to achieve "perfect"
interconsistency.
Posted by nlange@geomar.de on 2018-11-27 11:43:41 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - silicate
Other Polarstern cruises indicate an ok accuarcy (offsets within a 1.5% range).
However, the two crossovers with Oden cruises (77DN) indicate at least 3% too
high concentrations. Nonetheless, this is not enough for an adjustment.
Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:43:07 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - salinity
Crossovers indicate nice accuracy. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:42:48 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - phosphate
Variable crossover results but the absolute weighted mean is within the 2%
range. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:42:36 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - nitrate
All offsets are clearly within the range with vlaues > & < 1. Note that the
cruise data has far less scatter than historic data. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:42:20 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - oxygen
All crossovers - but 77DN1991 - show offsets below 1. However, only the one
based on 06AQ1987 is slightly below the lower threshold. Especially the good fit
with 06AQ2007 gives confidence about the accuarcy of the data. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:41:49 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - alkalinity
4 out 5 crossovers have offsets clearly within the range. 18SN1994 has slightly
lower concentrations but all within the limits. Note the large standard
deviations though. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:41:27 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - tco2
Crossovers indicate nice accuracy. Maintain.
Posted by nlange@geomar.de on 2018-11-27 11:41:07 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
06AQ20150817 - initialized
original: 06AQ20150817, Polarstern, AMS
Posted by nlange@geomar.de on 2018-11-26 14:39:21 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
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