CalCOFI 0404NH Reprocessing Notes June 2013 Plus 2019

CalCOFI 0404NH on RV New Horizon occupied 66 southern station, collecting seawater
bottle samples.
CalCOFI 0404JD on RV David Starr Jordan occupied 28 stations north of Line 76.7
using the same Seabird CTD but no bottle samples were collected. Bottle correction
coefficients from Leg I on RV New Horizon were applied to Leg II CTD sensor data.
"NH" & "JD" shipcodes distinguish casts 001-066 & 067-094. Please note that the
"JD" Leg II casts were numbered 001-028 and later renumbered to 067-094. This is
how the raw cast files are named in the zip archive.


1). Recalculated transmissometer M & B using new calibration sheet (Feb 2004)
	from Wetlabs. Replaced "4.8940  0.0580  0.200" which were wrong anyways with
	"18.9046  -1.0379  0.250".
2). Rerun all modules: Datcnv, Filter, AlignCTD, CellTM, Derive, Split, BinAvg
3). BtlVsCTD 4sec Step 1
4). Calculate salt offset using >350m salts
5). Regress O2 (single sensor in 2004) & chl. No ISUS until 0411.
6). Had a weird error with oxygen the first time I derived - it was about 50% 
	too low. So I redid it and got the right values the 2nd time.
7). Process 0404JD 28 northern stations, relabeling the unsplit cnv after derive
	from 001-028 to 067-094. Then I split the cnv and ascii-out the files to the
	same dir as 0404NH.
8). Cast 059 was labeled 02 in the hdr, needs to be edited before split or ascii
	out. Cruise was 040NH so needed to be fixed to 0404NH.
9). Cruise mislabeled 040NH in 59, 60, 61
10). Cast 25 labeled 30.37 instead of 90.37; Cast 26 was labeled sta 30.35 instead of 90.35. 
11). Cast 071 (005 northern) had some severe problems, no CTD data. There isnt any
	annotation in cast 072 (006) about reterminating or fixes. This was a 
	Fisheries-only leg.
12). BtlVsCTD all the stations (001-066 & 067-094). Northern stations do not have
	bottle data so CTD data will only be cruise-corrected.
	
Added:
2). Cast 60 upcast had a small salinity spike at 190m that was removed.
	Use secondary value which looks fine
3). Cast 42 downcast salinities spiked at 138m but both sensors detected the
	change so it may have been real; not edited.
4). Cast 31 is Santa Monica Basin 86.7 40.0, 770m plotted accordingly.
5). Cast 16 downcast primary CTD salinity at 3-5m was removed, use secondary sensor.
6). Line 66.7 (67) stations were to 1000m and plotted accordingly.
	
	
2019 reprocessing
* Using wfiltered cnvs from 2013, some additional changes such as rerunning the unaveraged
   asc through BtlVsCTD to generate uM/Kg of bottle O2s.
* When replotting, it looked like casts 054 & 055 had O2 problems so these were not used
   in the correction regression, improving the R^2.
* Salt offsets were identical to 2013
* Cast 015 downcast has questionable O2s from surface to 25m, data code "8"
* Cast 016 downcast has questionable O2s from surface to 40m, data code "8"
* Cast 016 downcast primary salinity looks bad from surface to 6m, data code "9"
* Cast 036 downcast has questionable O2s from surface to 12m, data code "8"