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CalCOFI 0907 CTD Data Processing Notes

F0-T0; F1-C0; F2-Pr;F3-T1;F4-C1;V0-Trans;V1-Fl;V2-Alt;V3-PAR;V4-O2;V5-O22;V6-ISUS;V7-Free

12 Oct 2009 - reprocessed 0907 with new version of seasave 7.19 for xml coefficients in hdr and BTLvsCTD1009 database csvs.

New additions this cruise include 2nd SBE43 O2 sensor so BTLvsCTD 4sec comparison of Bottle vs CTD O2 includes two plots.  The 'cruise correction coefficients' routine will have to include a second set since there may be slight differences between sensors ie bottle vs CTD O2 1 may be slightly different then bottle vs CTD O2 2, requiring two sets of coefficients.

Sta correction notes:

Sta 4: second O2 surface values are very low and were removed from the bottle vs 4sec CTD plot.

Sta 78 & sta 100: 60m bottle O2 is high relative to both sensors, possible mistrip or steep O2 gradient that the sensors could not respond quickly enough.  Sta 78: 80m (79.4) O2 too

Turns out there is were mismatches of bottle data vs CTD trips.  If bottles are tripped but do not end up in the IEH, then there can be mismatched.  Will need to be addressed in BTLvsCTD comparison routine to insure proper alignment by depth.

Sta 41: 0m and deep ISUS voltage went to zero

Sta 42: 0, 30 - 70m voltage went to zero

Bottle NO3 on stas 001 & 002 not used in bottle vs ISUS plots.

Removed salt fliers on both primary & secondary comparisons.

Fixes after reviewing bottle vs CTD data plots:

Sta 19 Downcast NO3 - 225 - 310m; edit d.asc and re-regress or plot cruise corrected NO3

Sta 23 Downcast NO3 - 120 - 180m; edit d.asc and re-regress or plot cruise corrected NO3

Sta 40 Downcast NO3 - 200 - 310m; edit d.asc and re-regress or plot cruise corrected NO3

Sta 41 NO3 - whole upcast and deep downcast; edit .ascs and re-regress or plot cruise corrected NO3

Sta 42 Upcast NO3 - 30 - 80m; edit u.asc and re-regress or plot cruise corrected NO3

Sta 42 Downcast NO3 - 0 - 300m (whole cast is pretty bad); edit d.asc and re-regress or plot cruise corrected NO3

Sta 43 Downcast NO3 - 200 - 310m; edit d.asc and re-regress or plot cruise corrected NO3

Sta 53 Downcast NO3 - 0 - 100m; edit d.asc and re-regress or plot cruise corrected NO3

Deep stations (~1050m):

Sta 96 Upcast: ISUS 520-600m bad section; downcast fine

No-bottle stations

Sta 79 downcast ISUS from 50 - 110m

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