Cruise: 33RO20120721 (dataset:CODAP-NA-2021) Data product: GLODAPv2.2022, v2.2023 Successor: GLODAPv3
Synonyms (including errata!) for this cruise: 33RO20120721; 33RO20120721
IMPORTANT information for GLODAP Reference Group Editors: This adjustment version is immutable and published in GLODAPv2.2022! Click here to switch to new version (GLODAPv2.2022)
Please wait while loading list of related files

| Filename: | Comment: | Action | |
|---|---|---|---|
| 33RO20120721___TSmap.png | View | ||
| co2_comparison_33RO20120721_unadj.png | View | ||

| Filename: | Comment: | Action | |
|---|---|---|---|
| Weighted_Mean_Results.xlsx | |||
Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:6
cruise:3
nitrate:11
ph:6
phosphate:10
salinity:11
silicate:11


| Filename: | Comment: | Action | |
|---|---|---|---|
| 316N19810401_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 316N19860424_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 316N20031023_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 316N20111106_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 32OC19950529_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 32OC20080510_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 33AT20120324_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 33RO20070710_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 74AB20050501_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 90CT19930911_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 33RO20120721
GLODAPv3 release: salinity update of 33RO20120721 based on salinity_offset:
0.0040; inversion: 0.0040; inversion_full: 0.0073; preadjustment: 0;
offsets_raw: -0.0029; offsets_preadj: -0.0024; offsets_preadj_u: 0.0038;
offsets_post: 0.0000; offsets_post_u: 0.0029; offsets_post_rt: -0.0010;
numberofxovers: 16; trends_pre: -0.0005; trends_adj: -0.0004.
Posted by nlange@geomar.de on 2026-08-04 17:11:43 UTC for data product: GLODAPv3
33RO20120721 - salinity
Slightly fresher water than reference cruise has been measured - hard to tell if
it's a real bias and if there's enough evidence for a rather small (roughly
0.01) adjustment. -888?
Posted by nlange@geomar.de on 2020-02-19 17:42:56 UTC for data product: DISMISSABLE or POSTPONED




View comment(s) (filtered by tco2 in subject)
GLODAPv3 release: autogenerated tco2 update for 33RO20120721
GLODAPv3 release: tco2 update of 33RO20120721 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: -1.5; preadjustment: 0; offsets_raw: 3.1;
offsets_preadj: 1.9; offsets_preadj_u: 0.6; offsets_post: 2.0; offsets_post_u:
0.3; offsets_post_rt: 3.2; numberofxovers: 7; trends_pre: 0.3; trends_adj: 0.1.
Posted by nlange@geomar.de on 2026-08-04 17:12:13 UTC for data product: GLODAPv3
33RO20120721 - tco2
Either -888 or pass. As the weighted mean is within the range as are all 4 crs
(one offset is 4.01 but that can be considered within the range) - Maintain
wihtout strong evidence.
Posted by nlange@geomar.de on 2020-02-19 17:41:38 UTC for data product: DISMISSABLE or POSTPONED

| Filename: | Comment: | Action | |
|---|---|---|---|
| 316N19810401_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 316N20031023_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 33AT20120324_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 33RO20070710_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 74AB20050501_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 33RO20120721
GLODAPv3 release: alkalinity update of 33RO20120721 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: 3.7; preadjustment: 0; offsets_raw: -1.3;
offsets_preadj: -1.2; offsets_preadj_u: 2.3; offsets_post: -1.3; offsets_post_u:
1.9; offsets_post_rt: -1.5; numberofxovers: 6; trends_pre: 0.0; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 13:46:27 UTC for data product: GLODAPv3
33RO20120721 - alkalinity
Either -888 or pass. As the weighted mean is clearly within the range - maintain
wihtout strong evidence.
Posted by nlange@geomar.de on 2020-02-19 17:41:48 UTC for data product: DISMISSABLE or POSTPONED

| Filename: | Comment: | Action | |
|---|---|---|---|
| 316N19810401_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 316N20031023_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 33AT20120324_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 33RO20070710_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 74AB20050501_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 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for phosphate_offset from
percent to factor: -888.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:43 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 33RO20120721
GLODAPv3 release: phosphate update of 33RO20120721 based on phosphate_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 17:11:29 UTC for data product: GLODAPv3
33RO20120721 - phosphate
Crossovers still indicate too high data, but clearly the spread is extreme. At
least 5% downward as suggest previously, but 8% - 10% actually seems more
reasonable.
Posted by nlange@geomar.de on 2022-04-21 15:59:57 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - ph
Maybe slightly low but within range especially given the location. Maintain.
Posted by nlange@geomar.de on 2022-04-21 15:59:27 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - ph
Only one crs - showing an offset of -0.005, thus clearly within the range. The
carbon interconsistency check shows a stronger negative offset of -0.01. However
the other two carbon parameters could not be evaluated doubt-free. Not enough
for a 2nd QC.
Posted by nlange@geomar.de on 2020-02-19 17:43:30 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - phosphate
All crs indicate too high concentrations. Note that recent crs exist and that
the offset reduces with depth for some of the crs… Adjustment also improves
Redfield ratio. Adjust according to weighted mean.
Posted by nlange@geomar.de on 2020-02-19 17:42:37 UTC for data product: DISMISSABLE or POSTPONED



| Filename: | Comment: | Action | |
|---|---|---|---|
| 316N19810401_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 316N19860424_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 316N20031023_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 316N20111106_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 31AN19810612_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 33AT20060118_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 33AT20120324_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 33RO20070710_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 74AB20050501_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 90CT19930911_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 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for nitrate_offset from percent
to factor: 1.05.
Posted by nlange@geomar.de on 2026-08-05 16:37:19 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 33RO20120721
GLODAPv3 release: nitrate update of 33RO20120721 based on nitrate_offset: 5.0;
inversion: 5.0; inversion_full: 5.3; preadjustment: 0; offsets_raw: -4.6;
offsets_preadj: -4.5; offsets_preadj_u: 0.8; offsets_post: -0.0; offsets_post_u:
0.7; offsets_post_rt: -0.2; numberofxovers: 13; trends_pre: 0.0; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:02 UTC for data product: GLODAPv3
33RO20120721 - nitrate
More recently uploaded nutrient data differs from previous one. Nitrate
concentrations are lower as is also reflected in the crossovers. Adjust by at
least 2% upward.
Posted by nlange@geomar.de on 2022-04-21 16:00:06 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - nitrate
Either -888 or pass. As good matches clearly exist - maintain wihtout strong
evidence.
Posted by nlange@geomar.de on 2020-02-19 17:42:11 UTC for data product: DISMISSABLE or POSTPONED

| Filename: | Comment: | Action | |
|---|---|---|---|
| 316N19810401_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 316N19860424_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 316N20031023_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 316N20111106_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 31AN19810612_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 33AT20060118_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 33AT20120324_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 33RO20070710_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 74AB20050501_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 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for phosphate_offset from
percent to factor: -888.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:43 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 33RO20120721
GLODAPv3 release: phosphate update of 33RO20120721 based on phosphate_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 17:11:29 UTC for data product: GLODAPv3
33RO20120721 - phosphate
Crossovers still indicate too high data, but clearly the spread is extreme. At
least 5% downward as suggest previously, but 8% - 10% actually seems more
reasonable.
Posted by nlange@geomar.de on 2022-04-21 15:59:57 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - phosphate
All crs indicate too high concentrations. Note that recent crs exist and that
the offset reduces with depth for some of the crs… Adjustment also improves
Redfield ratio. Adjust according to weighted mean.
Posted by nlange@geomar.de on 2020-02-19 17:42:37 UTC for data product: DISMISSABLE or POSTPONED

| Filename: | Comment: | Action | |
|---|---|---|---|
| 316N19810401_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 316N19860424_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 316N20031023_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 316N20111106_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 31AN19810612_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 33AT20060118_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 33AT20120324_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 33RO20070710_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 74AB20050501_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 90CT19930911_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 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for silicate_offset from percent
to factor: -888.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:57 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 33RO20120721[1-last] based on
silicate_offset: -888.0; inversion: 0.0; inversion_full: 7.5; preadjustment: 0;
offsets_raw: -7.1; offsets_preadj: -6.5; offsets_preadj_u: 2.0; offsets_post:
-6.8; offsets_post_u: 1.8; offsets_post_rt: -6.8; numberofxovers: 12;
trends_pre: -0.2; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-05 14:17:27 UTC for data product: GLODAPv3
33RO20120721 - silicate
More recent data fits better with other cruises. Nonetheless large variability
and uncertainty present. Also CANYON_B shows a very strong offset...Pass
anyway??
Posted by nlange@geomar.de on 2022-04-21 15:59:38 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - silicate
Extreme variability and uncertainties… Good matches exist (e.g. 33RO2007)
though. Further MLR analyses (based on only 14 samples) agree upon each other
and indicate roughly 10% too low data. To many uncertainties for such a large
adjustment: -888.
Posted by nlange@geomar.de on 2020-02-19 17:43:11 UTC for data product: DISMISSABLE or POSTPONED


View comment(s) (filtered by oxygen in subject)
GLODAPv3 release: converted value for oxygen_offset from percent to factor for 33RO20120721[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 16:37:31 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 33RO20120721
GLODAPv3 release: oxygen update of 33RO20120721 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: 0.1; preadjustment: 0; offsets_raw: -0.4;
offsets_preadj: -0.3; offsets_preadj_u: 0.4; offsets_post: -0.1; offsets_post_u:
0.2; offsets_post_rt: -0.2; numberofxovers: 16; trends_pre: 0.0; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:15 UTC for data product: GLODAPv3
33RO20120721 - oxygen
Given the proximity to the coast crs agree pretty well. Maintain.
Posted by nlange@geomar.de on 2020-02-19 17:42:00 UTC for data product: DISMISSABLE or POSTPONED














View 34 comment(s) (Lists all comments)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for silicate_offset from percent
to factor: -888.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:57 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for phosphate_offset from
percent to factor: -888.0.
Posted by nlange@geomar.de on 2026-08-05 16:37:43 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for oxygen_offset from percent to factor for 33RO20120721[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 16:37:31 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for nitrate_offset from percent to factor for 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for nitrate_offset from percent
to factor: 1.05.
Posted by nlange@geomar.de on 2026-08-05 16:37:19 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 33RO20120721[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 33RO20120721[1-last] based on
silicate_offset: -888.0; inversion: 0.0; inversion_full: 7.5; preadjustment: 0;
offsets_raw: -7.1; offsets_preadj: -6.5; offsets_preadj_u: 2.0; offsets_post:
-6.8; offsets_post_u: 1.8; offsets_post_rt: -6.8; numberofxovers: 12;
trends_pre: -0.2; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-05 14:17:27 UTC for data product: GLODAPv3
33RO20120721[1-last] GLODAPv3 release
GLODAPv3 release: silicate autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-05 14:17:27 UTC for data product: GLODAPv3
GLODAPv3 release: temperature added as NEW adjustment parameter to 33RO20120721[1-last]
Automated addition of temperature as NEW parameter to 33RO20120721[1-last] based
on temperature_offset: 0.
Posted by nlange@geomar.de on 2026-08-05 14:17:13 UTC for data product: GLODAPv3
33RO20120721[1-last] GLODAPv3 release
Automated addition of temperature as NEW adjustment parameter in GLODAPv3 to
33RO20120721[1-last] - select parameter to view annotation with specific
details.
Posted by nlange@geomar.de on 2026-08-05 14:17:13 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated tco2 update for 33RO20120721
GLODAPv3 release: tco2 update of 33RO20120721 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: -1.5; preadjustment: 0; offsets_raw: 3.1;
offsets_preadj: 1.9; offsets_preadj_u: 0.6; offsets_post: 2.0; offsets_post_u:
0.3; offsets_post_rt: 3.2; numberofxovers: 7; trends_pre: 0.3; trends_adj: 0.1.
Posted by nlange@geomar.de on 2026-08-04 17:12:13 UTC for data product: GLODAPv3
33RO20120721 GLODAPv3 release
GLODAPv3 release: tco2 autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:12:13 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated salinity update for 33RO20120721
GLODAPv3 release: salinity update of 33RO20120721 based on salinity_offset:
0.0040; inversion: 0.0040; inversion_full: 0.0073; preadjustment: 0;
offsets_raw: -0.0029; offsets_preadj: -0.0024; offsets_preadj_u: 0.0038;
offsets_post: 0.0000; offsets_post_u: 0.0029; offsets_post_rt: -0.0010;
numberofxovers: 16; trends_pre: -0.0005; trends_adj: -0.0004.
Posted by nlange@geomar.de on 2026-08-04 17:11:43 UTC for data product: GLODAPv3
33RO20120721 GLODAPv3 release
GLODAPv3 release: salinity autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:43 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated phosphate update for 33RO20120721
GLODAPv3 release: phosphate update of 33RO20120721 based on phosphate_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 17:11:29 UTC for data product: GLODAPv3
33RO20120721 GLODAPv3 release
GLODAPv3 release: phosphate autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:29 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 33RO20120721
GLODAPv3 release: oxygen update of 33RO20120721 based on oxygen_offset: 0.0;
inversion: 0.0; inversion_full: 0.1; preadjustment: 0; offsets_raw: -0.4;
offsets_preadj: -0.3; offsets_preadj_u: 0.4; offsets_post: -0.1; offsets_post_u:
0.2; offsets_post_rt: -0.2; numberofxovers: 16; trends_pre: 0.0; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:15 UTC for data product: GLODAPv3
33RO20120721 GLODAPv3 release
GLODAPv3 release: oxygen autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:15 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 33RO20120721
GLODAPv3 release: nitrate update of 33RO20120721 based on nitrate_offset: 5.0;
inversion: 5.0; inversion_full: 5.3; preadjustment: 0; offsets_raw: -4.6;
offsets_preadj: -4.5; offsets_preadj_u: 0.8; offsets_post: -0.0; offsets_post_u:
0.7; offsets_post_rt: -0.2; numberofxovers: 13; trends_pre: 0.0; trends_adj:
0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:02 UTC for data product: GLODAPv3
33RO20120721 GLODAPv3 release
GLODAPv3 release: nitrate autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 17:11:02 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated alkalinity update for 33RO20120721
GLODAPv3 release: alkalinity update of 33RO20120721 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: 3.7; preadjustment: 0; offsets_raw: -1.3;
offsets_preadj: -1.2; offsets_preadj_u: 2.3; offsets_post: -1.3; offsets_post_u:
1.9; offsets_post_rt: -1.5; numberofxovers: 6; trends_pre: 0.0; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 13:46:27 UTC for data product: GLODAPv3
33RO20120721 GLODAPv3 release
GLODAPv3 release: alkalinity autogenerated adjustment parameter update for
33RO20120721 - select parameter to view annotation with specific details.
Posted by nlange@geomar.de on 2026-08-04 13:46:27 UTC for data product: GLODAPv3
33RO20120721 - nitrate
More recently uploaded nutrient data differs from previous one. Nitrate
concentrations are lower as is also reflected in the crossovers. Adjust by at
least 2% upward.
Posted by nlange@geomar.de on 2022-04-21 16:00:06 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - phosphate
Crossovers still indicate too high data, but clearly the spread is extreme. At
least 5% downward as suggest previously, but 8% - 10% actually seems more
reasonable.
Posted by nlange@geomar.de on 2022-04-21 15:59:57 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - silicate
More recent data fits better with other cruises. Nonetheless large variability
and uncertainty present. Also CANYON_B shows a very strong offset...Pass
anyway??
Posted by nlange@geomar.de on 2022-04-21 15:59:38 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - ph
Maybe slightly low but within range especially given the location. Maintain.
Posted by nlange@geomar.de on 2022-04-21 15:59:27 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - initialized
original: 33RO20120721; Ronald H. Brown; Rik Wanninkhof
Posted by nlange@geomar.de on 2022-04-19 16:28:44 UTC for data product: GLODAPv2.2022, v2.2023
33RO20120721 - ph
Only one crs - showing an offset of -0.005, thus clearly within the range. The
carbon interconsistency check shows a stronger negative offset of -0.01. However
the other two carbon parameters could not be evaluated doubt-free. Not enough
for a 2nd QC.
Posted by nlange@geomar.de on 2020-02-19 17:43:30 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - silicate
Extreme variability and uncertainties… Good matches exist (e.g. 33RO2007)
though. Further MLR analyses (based on only 14 samples) agree upon each other
and indicate roughly 10% too low data. To many uncertainties for such a large
adjustment: -888.
Posted by nlange@geomar.de on 2020-02-19 17:43:11 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - salinity
Slightly fresher water than reference cruise has been measured - hard to tell if
it's a real bias and if there's enough evidence for a rather small (roughly
0.01) adjustment. -888?
Posted by nlange@geomar.de on 2020-02-19 17:42:56 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - phosphate
All crs indicate too high concentrations. Note that recent crs exist and that
the offset reduces with depth for some of the crs… Adjustment also improves
Redfield ratio. Adjust according to weighted mean.
Posted by nlange@geomar.de on 2020-02-19 17:42:37 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - nitrate
Either -888 or pass. As good matches clearly exist - maintain wihtout strong
evidence.
Posted by nlange@geomar.de on 2020-02-19 17:42:11 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - oxygen
Given the proximity to the coast crs agree pretty well. Maintain.
Posted by nlange@geomar.de on 2020-02-19 17:42:00 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - alkalinity
Either -888 or pass. As the weighted mean is clearly within the range - maintain
wihtout strong evidence.
Posted by nlange@geomar.de on 2020-02-19 17:41:48 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - tco2
Either -888 or pass. As the weighted mean is within the range as are all 4 crs
(one offset is 4.01 but that can be considered within the range) - Maintain
wihtout strong evidence.
Posted by nlange@geomar.de on 2020-02-19 17:41:38 UTC for data product: DISMISSABLE or POSTPONED
33RO20120721 - initialized
original: 33RO20120721; GOMECC2; Ronald H. Brown; Rik Wanninkhof, Joe Salisbury;
NN
Posted by nlange@geomar.de on 2020-02-18 17:49:53 UTC for data product: DISMISSABLE or POSTPONED
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