Cruise: 33RO20150410 (dataset:GLODAPv2.2019) Data product: GLODAPv2.2019, v2.2020, v2.2021 Successor: GLODAPv2.2022, v2.2023
Synonyms (including errata!) for this cruise: P16N; 33RO20150410; alias: P16N.2015.2; 33RO20150410; P16N/1; RB1503
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)
Please wait while loading list of related files

| Filename: | Comment: | Action | |
|---|---|---|---|
| Redfield.png | View | ||
| tracer.png | View | ||

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:6
cfc11:1
cfc12:1
cruise:2
nitrate:10
oxygen:10
ph:6
phosphate:5
salinity:10
silicate:10
tco2:6


| Filename: | Comment: | Action | |
|---|---|---|---|
| 318M19940327_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 31DS19910307_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 31OC19870606_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 32MW19890206_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 33RR20050109_Xover.png | [autogenerated from RC_Nico/salinity!] |
View | |
| 49NZ20090410_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 33RO20150410
GLODAPv3 release: salinity update of 33RO20150410 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: -0.0008; preadjustment: 0;
offsets_raw: 0.0002; offsets_preadj: 0.0000; offsets_preadj_u: 0.0008;
offsets_post: 0.0004; offsets_post_u: 0.0006; offsets_post_rt: 0.0008;
numberofxovers: 16; trends_pre: 0.0000; trends_adj: 0.0000.
Posted by nlange@geomar.de on 2026-08-04 17:11:43 UTC for data product: GLODAPv3
33RO20150410 - salinity
All offsets are clearly within the acceptable range. Note that only two
crossovers show a negative offset. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:20:01 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021



| Filename: | Comment: | Action | |
|---|---|---|---|
| 31DS19910307_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/tco2!] |
View | |
| 33RR20050109_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 33RO20150410
GLODAPv3 release: tco2 update of 33RO20150410 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: 1.0; preadjustment: 0; offsets_raw: -0.1;
offsets_preadj: -0.4; offsets_preadj_u: 0.6; offsets_post: -1.0; offsets_post_u:
0.4; offsets_post_rt: -0.4; numberofxovers: 9; trends_pre: 0.0; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:12:13 UTC for data product: GLODAPv3
33RO20150410 - tco2
Only 5 crossovers with varying offsets are present. However, all crossovers show
offsets wthin the acceptable range, as does the weighted mean offset
accordingly. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:21:15 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 318M19940327_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/alkalinity!] |
View | |
| 33RR20050109_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 33RO20150410
GLODAPv3 release: alkalinity update of 33RO20150410 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: -0.1; preadjustment: 0; offsets_raw: 0.6;
offsets_preadj: 0.7; offsets_preadj_u: 1.2; offsets_post: 0.5; offsets_post_u:
0.8; offsets_post_rt: 0.2; numberofxovers: 10; 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
33RO20150410 - alkalinity
Only 5 crossovers with largely varying offsets are present.
As "suggested" by the weighted mean offset (being within the limits) - maintain.
Posted by nlange@geomar.de on 2018-06-05 12:22:56 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 318M19940327_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/ph!] |
View | |
| 33RR20050109_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 33RO20150410[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 33RO20150410
GLODAPv3 release: phosphate update of 33RO20150410 based on phosphate_offset:
-888.0; inversion: 0.0; inversion_full: 0.3; preadjustment: 0; offsets_raw:
-0.8; offsets_preadj: -0.8; offsets_preadj_u: 1.5; offsets_post: -1.3;
offsets_post_u: 1.3; offsets_post_rt: -1.3; numberofxovers: 6; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:29 UTC for data product: GLODAPv3
33RO20150410 - ph
Decided to increase the adjustment, mainly based on the 2006 cruise run by Burne
Posted by ttanhua@geomar.de on 2018-09-26 22:37:53 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - ph
An additional carbon inter consistency check (type 2) supports the weighted mean
offset of the crossovers with an offset of -0.016 in comparison to a perfect fit
with TA and tco2. Given that the data of these two parameters seem accurate an
upward adjustment of the pH data is necessary. Adjust upward following the
weighted mean.
Posted by nlange@geomar.de on 2018-07-27 11:23:38 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - ph
Only 5 crossovers showing no clear consensus. 33RR2005 (caluclated PH) shows a
postive offset whereas the rest shows clearly negative ones.
Further, 318M1994 does not seem trustworthy as two (used for the analysis)
profiles clearly deviate from the other profiles. Thus, there is not sufficient
evidence for an adjustment even though the concentrations might be too low.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:38:15 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - phosphate
There are only 5 crossovers with varying offsets, however all crossovers show
offsets wthin the acceptable range.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:26:44 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021



| Filename: | Comment: | Action | |
|---|---|---|---|
| 318M19940327_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 31DS19910307_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 31OC19870606_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 32MW19890206_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 33RR20050109_Xover.png | [autogenerated from RC_Nico/nitrate!] |
View | |
| 49NZ20090410_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 33RO20150410[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 16:37:19 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated nitrate update for 33RO20150410
GLODAPv3 release: nitrate update of 33RO20150410 based on nitrate_offset: 0.0;
inversion: 0.0; inversion_full: 0.6; preadjustment: 0; offsets_raw: -0.4;
offsets_preadj: -0.4; offsets_preadj_u: 0.3; offsets_post: -0.5; offsets_post_u:
0.2; offsets_post_rt: -0.5; numberofxovers: 15; 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
33RO20150410 - nitrate
All offsets are very close to 1 and clearly within the acceptable range.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:25:48 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 31DS19910307_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/phosphate!] |
View | |
| 32MW19890206_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 33RO20150410[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 33RO20150410
GLODAPv3 release: phosphate update of 33RO20150410 based on phosphate_offset:
-888.0; inversion: 0.0; inversion_full: 0.3; preadjustment: 0; offsets_raw:
-0.8; offsets_preadj: -0.8; offsets_preadj_u: 1.5; offsets_post: -1.3;
offsets_post_u: 1.3; offsets_post_rt: -1.3; numberofxovers: 6; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:29 UTC for data product: GLODAPv3
33RO20150410 - phosphate
There are only 5 crossovers with varying offsets, however all crossovers show
offsets wthin the acceptable range.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:26:44 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 318M19940327_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 31DS19910307_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 31OC19870606_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 32MW19890206_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 33RR20050109_Xover.png | [autogenerated from RC_Nico/silicate!] |
View | |
| 49NZ20090410_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 33RO20150410[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 16:37:57 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 33RO20150410[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 33RO20150410[1-last] based on
silicate_offset: 0.0; inversion: 0.0; inversion_full: 0.0; preadjustment: 0;
offsets_raw: 0.8; offsets_preadj: 0.8; offsets_preadj_u: 0.8; offsets_post: 0.4;
offsets_post_u: 0.6; offsets_post_rt: 0.3; numberofxovers: 14; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-05 14:17:27 UTC for data product: GLODAPv3
33RO20150410 - silicate
There is a large variability between the offsets with rather positive offsets in
the southern part of the track, vice versa. However, the weighted mean is very
close to 1. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:35:13 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

| Filename: | Comment: | Action | |
|---|---|---|---|
| 318M19940327_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 31DS19910307_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 31OC19870606_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 31WT19910831_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 325019940125_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 325020060213_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 32MW19890206_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 33RR20050109_Xover.png | [autogenerated from RC_Nico/oxygen!] |
View | |
| 49NZ20090410_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 33RO20150410[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for oxygen_offset from percent
to factor: 1.009.
Posted by nlange@geomar.de on 2026-08-05 16:37:31 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated oxygen update for 33RO20150410
GLODAPv3 release: oxygen update of 33RO20150410 based on oxygen_offset: 0.9;
inversion: 0.9; inversion_full: 1.0; preadjustment: 0; offsets_raw: -1.0;
offsets_preadj: -0.8; offsets_preadj_u: 0.2; offsets_post: -0.0; offsets_post_u:
0.2; offsets_post_rt: -0.3; numberofxovers: 15; 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
33RO20150410 - oxygen
Except for one all Offsets are below or very close to the lower limit. There is
thus a quite nice consenus. Following the weighted mean offset of 0.985 adjust
1.5% upward.
Posted by nlange@geomar.de on 2018-06-05 12:24:50 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021



View comment(s) (filtered by cfc12 in subject)
33RO20150410 - cfc12
All stations show a slight oversaturation (upper 20m). However all - but two
stations - show ratios within the 5% range as reflected in the total mean of
1.03. Further, there is a nice fit to the entire CFC_11 data. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:43:13 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021

View comment(s) (filtered by cfc11 in subject)
33RO20150410 - cfc11
Most stations show a slight oversaturation (upper 20m). However all - but two
stations - show ratios within the 5% range as reflected in the total mean of
1.02. Further, there is a nice fit to the entire CFC_12 data. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:42:45 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021








View 32 comment(s) (Lists all comments)
GLODAPv3 release: converted value for silicate_offset from percent to factor for 33RO20150410[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 16:37:57 UTC for data product: GLODAPv3
GLODAPv3 release: converted value for phosphate_offset from percent to factor for 33RO20150410[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 33RO20150410[1-last]
GLODAPv3 release: CORRIGENDUM - converted value for oxygen_offset from percent
to factor: 1.009.
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 33RO20150410[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 16:37:19 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated silicate update for 33RO20150410[1-last]
GLODAPv3 release: CORRIGENDUM - silicate update of 33RO20150410[1-last] based on
silicate_offset: 0.0; inversion: 0.0; inversion_full: 0.0; preadjustment: 0;
offsets_raw: 0.8; offsets_preadj: 0.8; offsets_preadj_u: 0.8; offsets_post: 0.4;
offsets_post_u: 0.6; offsets_post_rt: 0.3; numberofxovers: 14; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-05 14:17:27 UTC for data product: GLODAPv3
33RO20150410[1-last] GLODAPv3 release
GLODAPv3 release: silicate autogenerated adjustment parameter update for
33RO20150410 - 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 33RO20150410[1-last]
Automated addition of temperature as NEW parameter to 33RO20150410[1-last] based
on temperature_offset: 0.
Posted by nlange@geomar.de on 2026-08-05 14:17:14 UTC for data product: GLODAPv3
33RO20150410[1-last] GLODAPv3 release
Automated addition of temperature as NEW adjustment parameter in GLODAPv3 to
33RO20150410[1-last] - select parameter to view annotation with specific
details.
Posted by nlange@geomar.de on 2026-08-05 14:17:14 UTC for data product: GLODAPv3
GLODAPv3 release: autogenerated tco2 update for 33RO20150410
GLODAPv3 release: tco2 update of 33RO20150410 based on tco2_offset: 0.0;
inversion: 0.0; inversion_full: 1.0; preadjustment: 0; offsets_raw: -0.1;
offsets_preadj: -0.4; offsets_preadj_u: 0.6; offsets_post: -1.0; offsets_post_u:
0.4; offsets_post_rt: -0.4; numberofxovers: 9; trends_pre: 0.0; trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:12:13 UTC for data product: GLODAPv3
33RO20150410 GLODAPv3 release
GLODAPv3 release: tco2 autogenerated adjustment parameter update for
33RO20150410 - 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 33RO20150410
GLODAPv3 release: salinity update of 33RO20150410 based on salinity_offset:
0.0000; inversion: 0.0000; inversion_full: -0.0008; preadjustment: 0;
offsets_raw: 0.0002; offsets_preadj: 0.0000; offsets_preadj_u: 0.0008;
offsets_post: 0.0004; offsets_post_u: 0.0006; offsets_post_rt: 0.0008;
numberofxovers: 16; trends_pre: 0.0000; trends_adj: 0.0000.
Posted by nlange@geomar.de on 2026-08-04 17:11:43 UTC for data product: GLODAPv3
33RO20150410 GLODAPv3 release
GLODAPv3 release: salinity autogenerated adjustment parameter update for
33RO20150410 - 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 33RO20150410
GLODAPv3 release: phosphate update of 33RO20150410 based on phosphate_offset:
-888.0; inversion: 0.0; inversion_full: 0.3; preadjustment: 0; offsets_raw:
-0.8; offsets_preadj: -0.8; offsets_preadj_u: 1.5; offsets_post: -1.3;
offsets_post_u: 1.3; offsets_post_rt: -1.3; numberofxovers: 6; trends_pre: 0.0;
trends_adj: 0.0.
Posted by nlange@geomar.de on 2026-08-04 17:11:29 UTC for data product: GLODAPv3
33RO20150410 GLODAPv3 release
GLODAPv3 release: phosphate autogenerated adjustment parameter update for
33RO20150410 - 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 33RO20150410
GLODAPv3 release: oxygen update of 33RO20150410 based on oxygen_offset: 0.9;
inversion: 0.9; inversion_full: 1.0; preadjustment: 0; offsets_raw: -1.0;
offsets_preadj: -0.8; offsets_preadj_u: 0.2; offsets_post: -0.0; offsets_post_u:
0.2; offsets_post_rt: -0.3; numberofxovers: 15; 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
33RO20150410 GLODAPv3 release
GLODAPv3 release: oxygen autogenerated adjustment parameter update for
33RO20150410 - 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 33RO20150410
GLODAPv3 release: nitrate update of 33RO20150410 based on nitrate_offset: 0.0;
inversion: 0.0; inversion_full: 0.6; preadjustment: 0; offsets_raw: -0.4;
offsets_preadj: -0.4; offsets_preadj_u: 0.3; offsets_post: -0.5; offsets_post_u:
0.2; offsets_post_rt: -0.5; numberofxovers: 15; 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
33RO20150410 GLODAPv3 release
GLODAPv3 release: nitrate autogenerated adjustment parameter update for
33RO20150410 - 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 33RO20150410
GLODAPv3 release: alkalinity update of 33RO20150410 based on alkalinity_offset:
0.0; inversion: 0.0; inversion_full: -0.1; preadjustment: 0; offsets_raw: 0.6;
offsets_preadj: 0.7; offsets_preadj_u: 1.2; offsets_post: 0.5; offsets_post_u:
0.8; offsets_post_rt: 0.2; numberofxovers: 10; 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
33RO20150410 GLODAPv3 release
GLODAPv3 release: alkalinity autogenerated adjustment parameter update for
33RO20150410 - 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
33RO20150410 - ph
Decided to increase the adjustment, mainly based on the 2006 cruise run by Burne
Posted by ttanhua@geomar.de on 2018-09-26 22:37:53 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - ph
An additional carbon inter consistency check (type 2) supports the weighted mean
offset of the crossovers with an offset of -0.016 in comparison to a perfect fit
with TA and tco2. Given that the data of these two parameters seem accurate an
upward adjustment of the pH data is necessary. Adjust upward following the
weighted mean.
Posted by nlange@geomar.de on 2018-07-27 11:23:38 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - cfc12
All stations show a slight oversaturation (upper 20m). However all - but two
stations - show ratios within the 5% range as reflected in the total mean of
1.03. Further, there is a nice fit to the entire CFC_11 data. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:43:13 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - cfc11
Most stations show a slight oversaturation (upper 20m). However all - but two
stations - show ratios within the 5% range as reflected in the total mean of
1.02. Further, there is a nice fit to the entire CFC_12 data. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:42:45 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - ph
Only 5 crossovers showing no clear consensus. 33RR2005 (caluclated PH) shows a
postive offset whereas the rest shows clearly negative ones.
Further, 318M1994 does not seem trustworthy as two (used for the analysis)
profiles clearly deviate from the other profiles. Thus, there is not sufficient
evidence for an adjustment even though the concentrations might be too low.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:38:15 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - silicate
There is a large variability between the offsets with rather positive offsets in
the southern part of the track, vice versa. However, the weighted mean is very
close to 1. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:35:13 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - phosphate
There are only 5 crossovers with varying offsets, however all crossovers show
offsets wthin the acceptable range.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:26:44 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - nitrate
All offsets are very close to 1 and clearly within the acceptable range.
Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:25:48 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - oxygen
Except for one all Offsets are below or very close to the lower limit. There is
thus a quite nice consenus. Following the weighted mean offset of 0.985 adjust
1.5% upward.
Posted by nlange@geomar.de on 2018-06-05 12:24:50 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - alkalinity
Only 5 crossovers with largely varying offsets are present.
As "suggested" by the weighted mean offset (being within the limits) - maintain.
Posted by nlange@geomar.de on 2018-06-05 12:22:56 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - tco2
Only 5 crossovers with varying offsets are present. However, all crossovers show
offsets wthin the acceptable range, as does the weighted mean offset
accordingly. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:21:15 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
33RO20150410 - salinity
All offsets are clearly within the acceptable range. Note that only two
crossovers show a negative offset. Maintain.
Posted by nlange@geomar.de on 2018-06-05 12:20:01 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021
Hide comments