Cruise: 06MT19970611 (dataset:CARBOOCEAN) Data product: GLODAPv2 Successor: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Synonyms (including errata!) for this cruise: 06MT39_3; 06MT19970611; 06MT39_3; A02

IMPORTANT information for GLODAP Reference Group Editors: This adjustment version is immutable and published in GLODAPv2! Click here to switch to new version (GLODAPv2)

Stations:	[1-last]
The selected Calculated Carbon Parameter has been dismissed in October 2017! Legacy values will be exported as is and displayed in red with subscript "c", e.g. -0.123456_c! No data available? Insert -999 No suggestion for adjustment possible? Insert -888 To calibrate CTDsal use: CTDsal_calibrated = (CTDsal - CTDsal_intercept) / CTDsal_slope To calibrate CTDoxy use: CTDoxy_calibrated = (CTDoxy - CTDoxy_intercept) / CTDoxy_slope
Insert your commit message below explaining your change(s) before you save…
Salinity [+]
CTD-Sal. [+] slope/intercept - action [ID]	/ - #
TCO₂ [+]
Alkalinity [+]
pH [+]
pCO₂ [+]
Nitrate [x]
Phosphate [x]
Silicate [x]
Oxygen [x]
CTD-Oxyg. [x] slope/intercept - action [ID]	/ - #
CFC12 [x]
CFC11 [x]
CFC113 [x]
CCl4 [x]
C13 [+]
SF6 [x]

Cruise Info

Annotations for this cruise:

View 1 annotation(s) (Lists all annotations)

Files for Adjustment Plot files re. Cruise:

Filename:	Comment:	Action…
offsets.png	[autogenerated from RC_Are/adjustments!]	View

Data files re. Cruise: - no files! -

Plot/Data files re. Parameter(s) (select parameter on left side to view!):
alkalinity:22 cfc113:1 cruise:1 nitrate:44 oxygen:41 phosphate:36 salinity:54 silicate:40 tco2:20

Plot files re. Cluster: - no files! -

Comments re. this cruise in GLODAPv2

View 22 comment(s) (Lists all comments)

06MT19970611 - c13

These cruises are also known as M39 cruises with three legs
of 13C-DIC sampling (M39-2, M39-3, M39-4). Since each
leg of this cruise had only a few stations with 13C-DIC
samples, and all these samples were analyzed together, these
cruises were summarized for the crossover study. Neither the
inversion routine nor the single crossover with the adjusted
cruises show evidence for an offset.

Posted by nlange@geomar.de on 2018-09-07 08:02:46 UTC for data product: GLODAPv2.2019, v2.2020, v2.2021, v2.2022, v2.2023

Autogenerated CTD salinity and CTD oxygen update

Automated update! This overwrites adjustment values (and flags) of CTDoxy and
CTDsal with the values from BOTsal and BOToxy for every cruise, unless CTDsal
(or CTDoxy) is not present or bad.
Salinity action ID:3; no CTD salinity data. Setting CTD salinity offset to -999,
QC flag removed.
Oxygen action ID:3; no CTD oxygen data. Setting CTD oxygen offset to -999, QC
flag removed.

Posted by svheuven@gmail.com on 2015-02-19 09:22:16 UTC for data product: GLODAPv2

Autogenerated comment - oxygen

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 1.00. Not fully
inspected, but inversion says abs(adj)<0.5% and existing suggestion is also
<0.5%

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

Autogenerated comment - silicate

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 1.00 (not re-inspected
for GLODAPv2)

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

Autogenerated comment - phosphate

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : make 1.04. That strongly improves
xovers west of 40W. It ~2% low against MT20030723, which itself is 3% low. There
is some indication of the station west of 40W to be severely low (going down to
8% too low). East of 40W, stations are approximately accurate (maybe 1-2% low).
Add figure

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

Autogenerated comment - nitrate

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 1.00. Cruise is not
appreciably biased against accurate cruise MT20030723.

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

Autogenerated comment - alkalinity

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : make -777. Calibration jump.
Figure ALK_change_06MT19970611_06GA20000506.pdf clearly demonstrates that East
of 23W, MT1997 is biased 10 high against 06GA2000 and many others (e.g.,
RO2003). West of 23W, data appear to be accurate. That suggests a troubling
calibration break. Could correct in station ranges.

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

Autogenerated comment - tCO2

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 0

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

Autogenerated comment - salinity

Auto-uploaded comment from GLODAPv2 assessment by Steven van Heuven (src:
GLODAPv2_ATL_for_Carsten.xls / 2015-01-08): : maintain 0

Posted by svheuven@gmail.com on 2015-01-08 16:40:57 UTC for data product: GLODAPv2

06MT19970611/oxygen: update slope+intercept

autogenerated: only BOToxy available (no CTDoxy)

Posted by svheuven@gmail.com on 2014-12-18 16:52:38 UTC for data product: GLODAPv2

06MT19970611/salinity: update slope+intercept

autogenerated: only BOTsal available (no CTDsal)

Posted by svheuven@gmail.com on 2014-12-18 16:52:38 UTC for data product: GLODAPv2

06MT19970611 - cfc113

very high saturation; values too large, especially at higher concentrations;
flag bad

Posted by rsteinf@physik.uni-bremen.de on 2014-04-29 11:16:51 UTC for data product: GLODAPv2

06MT19970611/oxygen: init slope+intercept

autogenerated: using BOToxy (no CTDoxy)

Posted by svheuven@gmail.com on 2014-02-25 17:02:11 UTC for data product: GLODAPv2

06MT19970611/salinity: init slope+intercept

autogenerated: using BOTsal (no CTDsal)

Posted by svheuven@gmail.com on 2014-02-25 17:02:11 UTC for data product: GLODAPv2

06MT19970611 - alkalinity

Mean offset with 7 cruises: +6.8 (but large spread of x-overs).
Inversion suggests +0.6
There are several x-overs with reliable cruises (33MW19930704.2, 316N19970530,
316N19961102) that seem to suggest that this cruise is high.
I therefore suggest an adjustment of -6
(GLODAPv1 did not adjust this cruise)

Posted by mario.hoppema@awi.de on 2012-12-17 16:16:24 UTC for data product: GLODAPv2

06MT19970611 - tco2

Mean offset with 7 cruises: 0.2
Inversion suggests +1.7
I suggest NO adjustment, in agreement with GLODAPv1.

Posted by mario.hoppema@awi.de on 2012-12-14 14:21:06 UTC for data product: GLODAPv2

06MT19970611 - phosphate

An error occurred with the previous comment, as the mean offset of this cruise
is 0.95, i.e. this cruise appears too low.
The new inversion for phosphate in the Atlantic with 10 core cruises assigned
suggests an adjustment of 1.03 which we follow.

Posted by mario.hoppema@awi.de on 2012-11-23 14:04:36 UTC for data product: GLODAPv2

06MT19970611 - oxygen

The inversion suggest a correction of 1.005, based on 8 crossovers with a mean
offset of 1.002. Do not adjust.

Posted by are.olsen@uib.no on 2012-09-16 13:48:18 UTC for data product: GLODAPv2

06MT19970611 - silicate

Inversion suggest correction of 0.99 and mean offset is 1.008, no correction
recommended. This is quite different from GLODAP suggesting that the data were
1.5 μmol/kg high, ~10%.

Posted by are.olsen@uib.no on 2012-09-12 21:06:19 UTC for data product: GLODAPv2

06MT19970611 - phosphate

Suggested correction is 1.0048, and mean offset is 0.996. The data appear fine.
No adjustment recommended. Consistent with GLODAP, 0.015 low.

Posted by are.olsen@uib.no on 2012-09-05 19:18:03 UTC for data product: GLODAPv2

06MT19970611 - nitrate

Suggested correction is 0.9836, and mean offset is 1. The data appear fine. The
Meteor cruises before and after this one were evaluated in CARINA, and were
corrected up, i.e opposite direction. This appears inconclusive and no
adjustment recommened

Posted by are.olsen@uib.no on 2012-08-31 14:34:00 UTC for data product: GLODAPv2

06MT19970611 - salinity

The inversion suggest a correction of 5.35 ppm based on 9 crossovers with a mean
offset of -6.7 ppm. This North atlantic at approx 40 deg N, potentialy dynamic
region. Do not adjust.

Are Olsen 30 Aug 2012

Posted by are.olsen@uib.no on 2012-08-30 15:31:31 UTC for data product: GLODAPv2

View other postings and files re. this adjustment

ReadMe file(s) for this cruise

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