Comments

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Subject and comment Comment for
data type: parameter:

06MT19960613 - silicate

The average of all crossovers is 0.89 and the inversion suggests a correction of 1.17. Crossovers with the core cruises suggest that the phosphate data are too low. The crossover analysis of the adjusted data (1.13) suggests that this adjustment was too large; the new inversion suggest a correction of 0.96, and the average of all crossovers is 1.02. Based on this evidence, an adjustment of 1.11 was applied to the phosphate data.

Posted 2009-06-03 16:36:55 by Toste Tanhua

Adjustment

Region(s): ATL

silicate

74DI19970807 - phosphate

The crossover analysis and the inversion results still suggest that this cruise needs an downward adjustment. The judgement is difficult due to relatively large scatter in the data, but is facilitated by the sheer number of crossovers. The average of the crossovers is 1.04, and the inversion suggest a correction of 0.97.
The data is adjusted with 0.97
Toste Tanhua,
Kiel, 2009.06.05

Posted 2009-06-03 15:34:16 by Toste Tanhua

Adjustment

Region(s): ATL

phosphate

06MT20040311 - phosphate

The crossover analysis of the adjusted data suggest that this cruise was adjusted too much. The average of the crossovers is 0.96 and the inversion suggest an adjustment of 1.04.
Based on this the adjustment was changed to 0.97
Toste Tanhua
Kie,, 2009.06.05

Posted 2009-06-03 14:46:24 by Toste Tanhua

Adjustment

Region(s): ATL

phosphate

06MT20010717 - phosphate

The crossover analyis and inversion of the adjusted data suggest that the adjustment of 1.20 was not enough. The inversion suggest additional adjustment of 1.05, and the average of the crossovers is 0.95. Based on this the adjustment was changed to 1.25.
Toste Tanhua,
Kiel, 2009.06.05

Posted 2009-06-03 14:23:10 by Toste Tanhua

Adjustment

Region(s): ATL

phosphate

06MT19990711 - phosphate

The crossover analysis and inversion of the adjusted data very constantly suggest thatthis cruise needs an upward adjustment. The mean of all crossovers is 0.96 and the inversion suggest an upward adjustment of 1.04, which is consistent with the mean. An adjustment of 1.04 is therefore applied.
Toste Tanhua, Kiel
2009.06.04

Posted 2009-06-03 14:01:12 by Toste Tanhua

Adjustment

Region(s): ATL

phosphate

58JH19980801-pH

After comparing Greenland Sea deep water averages
as well as calculated pH from Alkalinity and TCO2,
the pH of this cruise was found to need an upward
adjustment of 0.02.

/Sara Jutterström

Posted 2009-06-03 12:17:03 by Sara Jutterström

Adjustment

Region(s): AMS

58JH19970414-pH

After comparing Greenland Sea deep water averages
as well as calculated pH from Alkalinity and TCO2,
the pH of this cruise was found to need an upward
adjustment of 0.025.

/Sara Jutterström

Posted 2009-06-03 12:14:28 by Sara Jutterström

Adjustment

Region(s): AMS

58AA19950217-pH

pH-data appeared too low and since both Akalinity and TCO2 on this cruise were questionable, the pH data are flagged 3 as well.

/Sara Jutterström

Posted 2009-06-03 11:59:39 by Sara Jutterström

Adjustment

Region(s): AMS

06MT19990610 - ph

Even though the adjustment after temperature correction should be 0.006, this was rejected on three grounds:
1) 0.006 is very close to the lower limit to do an adjustment at all.
2) We believe that the pH on this cruise was done very careful and with a very reliable method.
3) The crossover with 33RO20030604 suggest that that no adjustment should be applied.
Toste Tanhua, Kiel

Posted 2009-05-28 12:06:26 by Toste Tanhua

Adjustment

Region(s): ATL

ph

06MT19990711 - ph

Original pH scale changed to TS22 (Total Scale at 22º),
This an increment on 1º on the previously supposed scale, and results in pH SWS25 increased in 0.014, so the correction now should be -0.0045, but the adjustment for the cruise is set to 0 as this value is below the 0.005 boundary

Posted 2009-05-28 09:26:56 by Anton Velo

Adjustment

Region(s): ATL

ph

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