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CTD Processing Summary CalCOFI 1001NH CTD Final Data (reformatted 10/2017 for QC columns)
Download 1001 CTD raw cast files zipped Download 1001 FinalQC CTD + bottle data
General CTD Notes - data acquisition cast notes, logistics, processing notes are listed below
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) 0.0021 0.0014
Oxygen (ml/L; dual Seabird SBE43) y = 1.083x - 0.0361
R² = 0.9998

y = 1.0557x - 0.0355
R² = 0.9999

Oxygen (umol/Kg; dual Seabird SBE43) y = 1.0829x - 1.5727
R² = 0.9998
y = 1.0557x - 1.5447
R² = 0.9999
Single sensors
Nitrate - ISUS 4sec ave voltage vs Bottle Nitrate (Satlantic MBARI-ISUS v2) y = 28.387x -10.892
R² = 0.9921
Please note the ISUS had serious undetermined issues so many casts do not have ISUS estimated nitrate data.
Fluorometer - linear & polynomial regressions

y = 2.3863x + 0.0084

R² = 0.7512

y = -1.7192x2 + 3.2816x - 0.0419

R² = 0.7674


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
 
General notes: 

CalCOFI 1001NH: 12 Jan - 04 Feb 2010 on RV New Horizon, 93 stations occupied. Please refer to the CalCOFI 1001NH Cruise Summary webpage for more cruise info:
CalCOFI 1001NH occupied 93 stations between 12 Jan 2010 - 4 Feb 2010. In addition to standard CalCOFI station work, Oozeki Midwater Trawls and Drifter deployments were performed - refer to Cruise Instructions for specific information. 109 stations were scheduled but loss of shiptime due to rough weather resulted in 93 stations occupied.
SIO-CalCOFI's Seabird 911+ with 24-10L bottle aluminum rosette was deployed on each CTD station. Standard sensor configuration consists of: 2-SBE 3plus Temperature, 2-SBE 4 Conductivity, 2-SBE 43 Dissolved Oxygen plumbed in parallel with 2-3000rpm pumps. Additional sensors include Seapoint Fluorometer, Wetlabs C-Star 25cm Transmissometer (mislabeled Chelsea/Seatech in .con file; coefficients are correct), MBARI-ISUS v2 Nitrate sensor, Datasonics Altimeter, Biospherical QSP-200L PAR, SBE 18 pH.
There were no sensors changed during this cruise but the ISUS had persistent problems with substantial drop-outs. Maintenance, diagnostic, & lamp-replacement services were by Satlantic was performed post-cruise. On 350mm deep casts, the ISUS, ISUS battery, PAR, & pH sensors were removed since they are not rated greater than 1000m.

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Actual Cruise Track
 

Cast specific Notes from Console Ops:
Console Ops Cast Notes:

Cast 001 sta 93.3 36.7: no prodo since 1840, late due to acoustics calibration done first. No ISUS data visible, nothing noted

Cast 002 sta 93.4 26.4: SCCOOS, first stopped at 15m bottom location but moved off to 20-25m; cast depth 15m

Cast 003 sta 91.7 26.4: SCCOOS, 20m station, 5 bottles closed

Cast 004 sta 93.3 28.0: ISUS battery not plugged in - battery replaced post-cast; Oozeki trawl perform prior to CTD cast

Cast 005 sta 93.3 30.0: no notes, early prodo station, ISUS worked okay on downcast

Cast 006 sta 93.3 35.0: no notes but ISUS spikey

Cast 007 sta 93.3 40.0: weather picked up a bit, rock-n-roll and wire angle, extra 10m bottle tripped for LTER; ISUS looks okay

Cast 008 sta 93.3 45.0: ISUS spike at ~50m on downcast, rest looked good

Cast 009 sta 93.3 50.0: nothing noted; ISUS looks good on downcast

Cast 010 sta 93.3 55.0: ISUS spikes at ~480-515m

Cast 011 sta 93.3 60.0: 21 bottle prodo station; ISUS spike at ~505m

Cast 012 sta 93.3 70.0: watch change mid-cast; mistrip bottle #17 40m, next to support, trigger released but bottle didn't close; ISUS dropouts ~380-515m

Cast 013 sta 93.3 80.0: Oozeki'd onto station; ISUS dropouts on downcast ~100-135m, ~175-230m, 510m

Cast 014 sta 93.3 90.0: ISUS still has hiccups 100-515m; event logger has wrong time & station - needs reboot?; turns out ship's GPS malfunctioned, also seen in acoustics data

Cast 015 sta 93.3 100.0: 22 bottle prodo station; ISUS had two short dropouts at ~305-330 and ~375-390

Cast 016 sta 93.3 110.0: ISUS flakey after ~150m on downcast, no solution since we do not have a backup ISUS

Cast 017 sta 93.3 120.0: ISUS issues continue - hiccups @200m, 300m, 375m; top of bottle #18 closed on lanyard -probably bad seawater sample

Cast 018 sta 90.0 120.0: 22 bottle prodo station; ISUS hiccups @150m-260m

Cast 019 sta 90.0 110.0: bottle #17 mistripped; ISUS really noisy

Cast 020 sta 90.0 100.0: cleaned the ISUS cable pre-cast but still problematic from ~300-515m

Cast 021 sta 90.0 90.0: 24 bottle 3500m deep cast; ISUS, battery, PAR, & pH removed

Cast 621 sta 90.0 90.0: 6-bottle prodo cast to 85m; ISUS, PAR, pH sensors still off

Cast 022 sta 90.0 80.0: ISUS back on and dropout are back; notes from DMW <> JRW re monitoring the CTD during cast

Cast 023 sta 90.0 70.0: ship rolling pretty good at beginning of downcast; light rain; ISUS worked with no dropouts

Cast 024 - Oozeki trawl ~8nm from 90.60; not CTD or other nets but still given an order-occupied #

Cast 025 sta 90.0 60.0: ISUS not charged from previous station but worked fine, not dropouts

Cast 026 sta 90.0 53.0: 20 bottle prodo station - bottle 21 O2 test case, no samples; ISUS good

Cast 027 sta 90.0 45.0: large wire angle, missed 30m marker - marker bad

Cast 028 sta 90.0 37.0: 0-40m mixed layer, no distinct chl max but 0-40 chl is higher; big ship rolls on downcast, going down slower; ISUS good

Cast 029 sta 90.0 35.0: 379m bottom, 18 bottle cast; no real chl peak but a bit higher at 38m; bottle #18 closed on lanyard; flush tubes may not have been removed

Cast 030 sta 90.0 30.0: hard to find chl max but a little higher at ~50m, pretty straight from 0-60m

Cast 031 sta 90.0 28.0: 62m prodo station, 8 bottles

Cast 032 sta 88.5 30.1: SCCOOS 23m shallow station, crazy mixed storm winds >40kts; forgot to tripped extra bottle; bottle #1 sampled from bottom valve since top valve got broken

cast 033 sta 86.8 32.5: SCCOOS 27m shallow station, "calmer" but still pretty rough 22+kt winds; gale conditions

Cast 034 sta 86.7 33.0: 58m shallow station, 8 bottles; ~20kt winds, moderate swell

Cast 035 sta 86.7 35.0: not much rolling on downcast but fighting wire-angle; ISUS looks pretty good; "classic" profile but salinity different on upcast ~100m

Cast 036 sta 86.7 40.0: 24-bottle Santa Monica Basin station; 6-8ft seas 20kt winds; drifters 99242 & 99243 deployed; ISUS spikes at ~205-240m & 540m;

Cast 037 sta 86.7 45.0: 22-bottle prodo station, ISUS good; seas rough

Cast 038 sta 86.7 50.0: San Nicolas Island station 79m bottom

Cast 039 sta 86.7 55.0: 22-bottle prodo station; one small ISUS dropout at ~135m

Cast 040 sta 86.7 60.0: no notes; ISUS good

Cast 041 sta 86.7 70.0: calmer but big rolls; ISUS looks good on downcast; upcast different especially salt & temperature @75m

Cast 042 sta 86.7 80.0: nothing noted; ISUS good

Cast 043 sta 86.7 90.0: 23-bottle prodo station; ISUS good

Cast 044 sta 86.7 100.0: watch change mid-cast; ISUS bad(?)

Cast 045 sta 86.7 110.0: ISUS dropouts 0-20m, 55-75m, 510-515m

Cast 046 sta 83.3 110.0: slight chla max below 50m, chose cast type II; ISUS crapped out between 375-475m

Cast 047 sta 83.3 100.0: no notes; 21-bottle prodo station; ISUS bad with small instances of good voltages

Cast 048 sta 83.3 90.0: big rolls, going down slow; ISUS poor; unusual O2 and pH dip @ 170m downcast

Cast 049 sta 83.3 80.0: bottle #18 closed on its own lanyard; ISUS bad

Cast 050 sta 83.3 70.0: raining; ISUS not working well at all

Cast 051 sta 83.3 60.0: 21-bottle late prodo station; CTD wire untwisted at this sta by lifting off the deck and spinning 3x; wind & waves + current made cast difficult- stopped @163m wire against hull; power surge prior to cast caused slow initial speed ~18m/min; ISUS removed prior to cast

Cast 052 sta 83.3 55.0: ISUS off of CTD; rain grey overcast afternoon; wind ~20+kts

Cast 053 sta 83.3 51.0: 101m shallow station; 11 bottles; drifter station; kelp patty by CTD area on return to surface - waited till clear

Cast 054 sta 83.3 42.0: 130m shallow station; 12 bottles; really flat calm so went to 120m terminal depth

Cast 055 sta 83.3 39.4: SCCOOS 20m station; 5 bottles

Cast 056 sta 83.3 40.6: 38m prodo station, 8 bottles

Cast 057 sta 81.7 43.5: SCCOOS, initially at 8(!)m - touched bottom with CTD; brought back onboard, moved deeper, restarted cast

Cast 058 sta 81.8 46.9: Santa Barbara Basin station 586m; settled at bottom close enough for alarm set off; continued to settle on 2nd bottle, altimeter readings before trip after lifting bottle/CTD; bottle #23 mistrip

Cast 059 sta 80.0 50.5: SCCOOS 20m station; ISUS back on; turbid water but not fluorescing

Cast 060 sta 80.0 51.0: 78m station; ISUS on/working; turbid water but not fluorescing; calm night

Cast 061 sta 80.0 55.0: no notes; ISUS bad

Cast 062 sta 80.0 60.0: ISUS still not working

Cast 063 sta 80.0 70.0: 20-bottle prodo station; ISUS bad

Cast 064 sta 80.0 80.0: calm, cold, overcast; lots of stratification - many T-S dips and peaks (flush tubes were removed so real); ISUS kaput this cast; ISUS+battery, PAR, pH removed post-cast for next 3500m sta

Cast 065 sta 80.0 90.0: 2nd 3500m cast; flat calm, no wind

Cast 066 sta 80.0 100.0: 22-bottle prodo cast; no ISUS

Cast 067 sta 76.7 100.0: calm, overcast; ISUS offline; removed carousel crown to service trigger #18 which isn't locking

Cast 068 sta 76.7 90.0: nothing noted; ISUS offline

Cast 069 sta 76.7 80.0: 23-bottle prodo cast; Shonna noticed bottle #16 broken, tripped #23 @46m to recover sample (CTD went back down to 43m then returned to surface for recovery)

Cast 070 sta 76.7 70.0: nothing noted

Cast 071 sta 76.7 60.0: O2 drop and salinity bump @80m on upcast; up & down profiles different (internal wave)

Cast 072 sta 76.7 55.0: nothing noted

Cast 073 sta 76.7 51.0: 250m bottom, 15 bottles; CESL crashed & problems, fixed by MGS

Cast 074 sta 76.7 49.0: 72m station; no notes

Cast 075 sta 73.3 50.0: 31m bottom; 5 bottles

Cast 076 sta 73.3 55.0: last cast for JRW this cruise; chla max 23m

LEG II:

Cast 077 sta 67.1 47.7: 200m bottom; 12-bottles

Cast 078 sta 66.7 50.0: 515m 20-bottle cast

Cast 079 sta 66.7 55.0: 1000m MBARI 20-bottle cast; ship moved off station

Cast 080 sta 66.7 60.0: 1000m MBARI 20-bottle cast; after firing bottle #1, said "0 bottles fired" so I fired again and it said "#fired = 1 > Next bottle to be fired #3. Bottle 2 came up tripped so everything was okay.

Cast 081 sta 66.7 65.0: 1000m MBARI 12-bottle cast

Cast 082 sta 66.7 70.0: 1000m MBARI 20-bottle cast

Cast 083 sta 66.7 75.0: 1000m MBARI 12-bottle cast; Type I-BM

Cast 084 sta 66.7 80.0: 1000m MBARI 20-bottle cast; Happy Groundhog's Day

Cast 085 sta 66.7 85.0: 1000m MBARI 12-bottle cast; MBARI station only - no O2s, just one salt check sample

Cast 086 sta 66.7 90.0: 1000m MBARI 20-bottle cast; catching Dosidicus on station (5); bottle #20 mistrip, took bucket sample

Cast 087 sta 70.0 90.0: 515m 20-bottle cast

Cast 088 sta 70.0 80.0: 515m 20-bottle cast; calm slow rollers

Cast 089 sta 70.0 70.0: 515m 20-bottle cast

Cast 090 sta 70.0 60.0: 515m 20-bottle cast

Cast 091 sta 70.0 55.0: 515m 20-bottle cast

Cast 092 sta 70.0 51.0: 225m 14-bottle cast; very steep, shoaling - hit bottom @230m, 1st bottle tripped @230m then skipped 200m bottle because we were losing depths (went from 270m to 200m in ~1min); extra marker @50m - deleted from file

Cast 093 sta 73.3 60.0: last sta, 515m 20-bottle cast

JRW 10/25/2017









 
 

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