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CTD Processing Summary CalCOFI 1110NH CTD Data (reprocessed 2015 for umol/Kg O2; QC columns added 2017)
Download 1110NH CTD raw cast files zipped Download 1110NH FinalQC CTD + bottle data (2017 version)
General CTD Notes - see below; data acquisition notes, logistics, processing
CTD sensor corrections derived by comparing 4 secs of CTD sensor data (prior to bottle closure) to bottle samples
Dual T, S, & O2 Primary Sensor Secondary Sensor
Salinity offset (bottle - CTD salinity; > 350m only; Seabird SBE4)

- 0.0009

0.0025
Oxygen ml/L(dual Seabird SBE43) y = 1.0217x - 0.0181
R² = 0.9993
y = 1.0439x - 0.014
R² = 0.9993
Oxygen uM/Kg (dual Seabird SBE43) y = 1.0237x - 0.676
R² = 0.9993
y = 1.0459x - 0.3847
R² = 0.9993
Single sensors
Nitrate - ISUS 4sec ave voltage vs Bottle Nitrate (Satlantic MBARI-ISUS v2) y = 30.352x + 4.3315
R² = 0.982
Please note there was an issue with the ISUS low end detection. Satlantic changed the bulb before this cruise.
Fluorometer - polynomial & linear regressions

y = 1.053x2+7.0017x-0.121

R² = 0.6164

y = 7.5687x - 0.1469

R² = 0.6153

  
Primary CTD O2 Sensor vs Bottle O2
  
Secondary CTD O2 Sensor vs Bottle O2
Primary CTD O2 Sensor vs Bottle O2 Secondary CTD O2 Sensor vs Bottle O2
MBARI-ISUS Voltage vs Bottle NO3 Seapoint Fluorometer Voltage vs Chlorophyll-a
 
CalCOFI 1110NH CTD Cast Notes:

1110NH CTD Sensor ConfigurationMBARI-ISUS nitrate sensor had problems detecting nitrate values below 5µM/L this cruise. There was a problem with the ISUS sensor's low end NO3 detection. ISUS was unable to measure NO3 < 5uM/l. ISUS was sent before this cruise to Satlantic but there was still issues updating the instrument's calibration. ISUS measurements above 5 uM/l look okay.
The SBE 18 pH sensor was also behaving poorly, data suspect or bad; sent in for servicing post-cruise. Cruise was originally processed in 2012 by MGS, updated in 2017 by JRW.

Sensor configuration

Console Ops CTD Operator Notes:
Cast 001 sta 93.3 26.7: primary cond and O2 funky - O2 funky because primary cond but secondary O2 cal coeffs are wrong too. 1110001.con has incorrect coefficients so this was corrected post-cast, replacing the bad con file.

Cast 002 st 93.4 26.4: lots of lobster pots around the ship

Cast 003 sta 91.7 26.4: sample log calculated sta is 91.9 not 91.7

Cast 004 sta 93.3 28.0: winch brake issues @ 328m

Cast 005 sta 93.3 30.0: Isus values seem wrong Max ~10um @515m; lost pH signal

Cast 006 sta 93.3 35.0: 22 bottle prodo sta, no notes

Cast 007 sta 93.3 40.0: nothing noted

Cast 008-011 stas 93.3 45.0 - 60.0: nothing noted

Cast 012 sta 93.3 70.0: 21 bottle prodo station, nothing noted

Cast 013 sta 93.3 80.0: nothing noted

Cast 014 sta 93.3 90.0: nothing noted

Cast 015 sta 93.3 100.0: bottle #9 no closure

Cast 016 sta 93.3 110.0: 23 bottle prodo sta, O2 test case @ 10m

Cast 017 sta 93.3 120.0: bottle #19 did not close or even fire > redeployed and got 10m sample in bottle 21

Cast 018 sta 90.0 120.0: bottel #19 no closure (again)

Cast 019 sta 90.0 110.0: 23 bottle prodo sta, bottle #19 & #20 dupicate tripped for insurance

Cast 020 sta 90.0 100.0: nothing noted so bottle 19 problem fixed

Cast 021 sta 90.0 90.0: 3500m deep cast, ~0.36nm from station but should be at station when we hit 3500m; 30L of 3500m water collected

Cast 022 sta 90.0 80.0: 23 bottle prodo station, nothing noted

Cast 023 sta 90.0 70.0: no notes except nav file saved late (@270m upcast)

Cast 024 sta 90.0 60.0: nothing of note

Cast 025 sta 90.0 53.0: rolling heavy

Cast 026 sta 90.0 45.0: 23 bottle prodo station, pH sensor data look bad

Cast 027 sta 90.0 37.0: nothing of note

Cast 028 sta 90.0 35.0: ~350m station, ~7m difference between the Knudsen and altimeter

Cast 029 sta 90.0 30.0: nothing noted

Cast 030 sta 90.0 28.0: 71m station, no notes

Cast 031 sta 90.0 27.7: 27m SCCOOS station; bottle #5 closed extra no samples

Cast 032 sta 88.5 30.1: 23m SCCOOS, 4 bottles

Cast 033 sta 86.7 33.0: 69m 13 bottle prodo station; bottle #9 didn't close so sent back down, bottle #13 = 10m

Cast 034 sta 86.8 32.5: 35m SCCOOS station; cable overwrap problem, had to go down again - yo-yo'd

Cast 035 sta 85.4 35.8: 23m SCCOOS station; nothing noteworthy

Cast 036 sta 86.7 35.0: nothing noteworthy

Cast 037 sta 86.7 40.0: Santa Monica Basin station, 24 bottles closed; altimeter weird - did not get a really stable number, 820m terminal depth. Bottle #9 mistripped

Cast 038 sta 86.7 45.0: rolling seas, winch went to 110m then back down to 120m; bottle #9 is having issues so it was raised and trigger was changed prior to cast; extra bottle tripped at 140m for insurance but #9 worked fine so salt only from #9

Cast 039 sta 86.7 50.0: bottle #9 no closure, #8 LTER

Cast 040 sta 86.7 55.0: 22 bottle prodo station; bottle #8 (170m) closed at surface - mistrip

Cast 041 sta 86.7 60.0: no notes

Cast 042 sta 86.7 70.0: "missed 112" bottle tripped at 111m

Cast 043 sta 86.7 80.0: no notes

Cast 044 sta 86.7 90.0: 24 bottle prodo station; big rolls, bottle #9 no closure; bottle #24 O2 test case

Cast 045 sta 86.7 100.0: long rollers ~6-8ft; #9 no closure > carousel changed

Cast 046 sta 86.7 110.0: no problems or notes (#9 closed)

Cast 047 sta 83.3 110.0: 22 bottle prodo station, no notes

Cast 048 sta 83.3 100.0: extra bottle tripped at 420m, no reason

Cast 049 sta 83.3 90.0: post-Oozeki net tow ~0.3nm from sta; crazy salinity profile from 20-90m ship roll? biofouling?

Cast 050 sta 83.3 80.0: nothing noteworthy

Cast 051 sta 83.3 70.0: 22 bottle prodo station; nothing noted

Cast 052 sta 83.3 60.0: nothing noteworthy

Cast 053 sta 83.3 55.0: nothing noteworthy

Cast 054 sta 83.3 51.0: 102m bottom; 11 bottle cast to 90m

Cast 055 sta 83.3 39.4: 23m SCCOOS station, 5 bottles (extra 10m)

Cast 056 sta 83.3 40.6: 36m 7 bottle prodo station

Cast 057 sta 83.3 42.0: 142m bottom, 12 bottle 120m cast

Cast 058 sta 81.7 43.5: 20m SCCOOS, 4 bottles; 2281 pH sample noted

Cast 059 sta 81.8 46.9: Santa Barbara Basin 24 bottle station with DICs

Cast 060 sta 80.0 50.5: 20m 6 bottle SCCOOS station

Cast 061 sta 80.0 51.0: 71m 9 bottle station; drifted into slightly deeper water, started at 70m

Cast 062 sta 80.0 55.0: 22 bottle cast

Cast 063 sta 80.0 60.0: 23 bottle prodo sta; "ocean is a rollin'" noted; 110m bottle tripped - noted should have been 115

Cast 064 sta 80.0 70.0: nothing noted

Cast 065 sta 80.0 80.0: strong current causing very large wire angles at depth

Cast 066 sta 80.0 90.0: 3500m cast, 24 bottles closed, 30L at 3500m

Cast 666 sta 80.0 90.0: 200m prodo cast after deep cast since there were 6 prodo bottle depths from 55-1m

Cast 067 sta 80.0 100.0: nothing noted

Cast 068 sta 76.7 100.0: 6-7ft seas

Cast 069 sta 76.7 90.0: 20 bottle prodo station

Cast 070 sta 76.7 80.0: big rolls

Cast 071 sta 76.7 70.0: medium rollers

Cast 072 sta 76.7 60.0: nothing noted

Cast 073 sta 76.7 55.0: nothing noted

Cast 074 sta 76.7 51.0: 242m bottom, 16 bottle cast; software issue #2 plot messed up, bottle seem to be firing, no errors

Cast 075 sta 76.7 49.0: last sta, 68m prodo station, 11 bottles tripped

JRW 10/17/2017

 

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