*2025/02/18 15:28:49.31 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2020/07/09 14:04:59.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 8 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : C04EFEC1 NUMBER OF CHANNELS : 31 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 560 567 2 Bottle:Position n/a 1 8 3 Bottle_Number n/a 1 8 4 Pressure decibar 1.6 602.6 5 Depth metres 1.6 596.5 6 Temperature:Primary 'deg C (ITS90)' 9.0019 17.9894 7 Conductivity:Primary S/m 2.39038 3.42987 8 Transmissivity %/metre 34.3 57.4 9 Transmissivity:Green %/metre 37.7 88.2 10 Fluorescence:URU:Seapoint mg/m^3 0.116 2.464 11 PAR uE/m^2/sec 0 64.3 12 PAR:Reference uE/m^2/sec 156.9 178.8 13 Salinity:T0:C0 PSS-78 17.1526 31.1884 14 Oxygen:Dissolved:SBE mL/L 1.97 6.92 15 Oxygen:Dissolved:SBE umol/kg 86 305 16 Number_of_bin_records n/a 241 241 17 Temperature:Draw 'deg C (ITS90)' 11.2 19.5 18 Chlorophyll:Extracted mg/m^3 0.3E-01 3.23 19 Flag:Chlorophyll:Extracted n/a 20 Phaeo-Pigment:Extracted mg/m^3 0.8E-01 0.73 21 Oxygen:Dissolved mL/L 1.985 6.804 22 Oxygen:Dissolved umol/kg 86.6 300.3 23 Flag:Oxygen:Dissolved n/a 24 Nitrate_plus_Nitrite umol/L 0.38 31.82 25 Flag:Nitrate_plus_Nitrite n/a 26 Phosphate umol/L 0.2 2.931 27 Flag:Phosphate n/a 28 Salinity:Bottle PSS-78 18.5095 31.1836 29 Flag:Salinity:Bottle n/a 30 Silicate umol/L 39.54 79.37 31 Flag:Silicate n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I 0 2 -99 ' ' 3 I I 0 3 -99 ' ' 3 I I 0 4 -99 ' ' 7 F ' ' 1 5 -99 ' ' 7 F ' ' 1 6 -99 ' ' 9 F ' ' 4 7 -99 ' ' 10 F ' ' 5 8 -99 ' ' 6 F ' ' 1 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 8 F ' ' 3 11 -99 ' ' 7 F ' ' 1 12 -99 ' ' 7 F ' ' 1 13 -99 ' ' 9 F ' ' 4 14 -99 ' ' 7 F ' ' 2 15 -99 ' ' 6 F ' ' 1 16 ' ' ' ' 5 I I 0 17 -99 ' ' 6 F R4 1 18 -99 ' ' 7 F R4 2 19 -99 ' ' 3 NQ C ' ' 20 -99 ' ' 7 F R4 2 21 -99 ' ' 8 F R4 3 22 -99 ' ' 6 F ' ' 1 23 -99 ' ' 3 NQ C ' ' 24 -99 ' ' 7 F R4 2 25 -99 ' ' 3 NQ C ' ' 26 -99 ' ' 8 F R4 3 27 -99 ' ' 3 NQ C ' ' 28 -99 ' ' 9 F R4 4 29 0 ' ' 3 NQ C ' ' 30 -99 ' ' 7 F R4 2 31 0 ' ' 3 NQ C ' ' $END $REMARKS Quality flags have the following significance: ---------------------------------------------------------------------------------- 0 = Acceptable measurement with no header comment 1 = Sample for this measurement was collected but not analyzed. Sample lost. 2 = Acceptable measurement with header comment 3 = Questionable measurement (Probably Good) 4 = Poor measurement (Probably Bad) 5 = Measurement not reported (Bad) 6 = Mean of replicate measurements 7 = Manual chromatographic peak measurement 8 = Irregular digital chromatographic peak integration 9 = Sample was planned for this measurement from this bottle but was not collected ---------------------------------------------------------------------------------- $END *ADMINISTRATION MISSION : 2020-005 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : La Perouse Zooplankton Monitoring SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : WCVI STATION : JI4 EVENT NUMBER : 241 LATITUDE : 49 47.18000 N ! (deg min) LONGITUDE : 124 5.67000 W ! (deg min) WATER DEPTH : 605 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item $TABLE: SENSORS ! Name Abs Depth Serial No ! ----------------------------------- -------------- ---------- Temperature ' ' 4700 Conductivity ' ' 3531 'Pressure:Digiquartz with TC' ' ' 0443 Temperature:2 ' ' 4888 Conductivity:2 ' ' 4513 'Oxygen:SBE 43' ' ' 3791 Fluorometer:Seapoint ' ' 3640 'Transmissometer:WET Labs C-Star' ' ' 1185DR 'Transmissometer:WET Labs C-Star:2' ' ' 1883DG PAR/Irradiance:Biospherical/Licor ' ' 70613 Altimeter ' ' 62355 Unavailable ' ' ' ' 'SPAR/Surface Irradiance' ' ' 20518 $END $REMARKS Software Version Seasave V 7.26.7.121 $END *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! --------------------- ------ ---------- -------- --------- --------- SBE_IOS 4.2.3 2020/10/13 15:47:03 1928 1928 CLEAN 5.2.4 2020/10/13 15:47:46 1928 1928 ADDSAMP 3.6 2020/10/13 16:22:01 1928 1928 BINAVE 4.2.1 2020/10/13 16:22:31 1928 8 MERGE 3.6 2020/11/16 09:12:35 8 8 CLEAN 5.2.4 2020/11/16 13:31:54 8 8 CALIB 12.0.1 2020/11/16 13:32:34 8 8 SORT 3.6 2020/11/16 13:39:51 8 8 REMOVECH 8.2 2020/11/16 13:41:33 8 8 CHGUNITS 3.1.2 2020/11/16 13:46:23 8 8 CHGUNITS 3.1.2 2020/11/16 13:46:30 8 8 REORDER 1.3.1 2020/11/16 13:46:57 ? ? HDREDIT2 3.2 2020/11/16 14:19:28 ? ? CALIB 12.0.1 2021/01/20 13:55:59 8 8 SORT 3.6 2021/02/15 14:49:57 8 8 REMOVECH 8.2 2021/02/15 15:35:03 8 8 MERGE 3.6 2021/02/15 17:15:29 8 8 SORT 3.6 2021/02/18 14:15:55 8 8 CALIB 12.0.1 2021/02/18 14:33:45 8 8 Silicate_Correction 1.1 2021/12/08 10:52:11 8 8 HDREDIT2 3.2 2022/12/01 14:49:53 ? ? Silicate_Modification 1.2 2023/03/19 10:47:36 8 8 HDREDIT2 3.2 2025/02/18 15:12:44 ? ? CLEAN 5.3 2025/02/18 15:28:49 8 8 $END $REMARKS -CLEAN functions: 2020/10/13 15:47:17 20 Reset #RECS, MIN & MAX values in header. Set event to last 4 characters of file name -The following ADDSAMP parameters were used: Sample Number Lookup File: D:\Telework\2020-005\Processing\hydro\addsamp.csv Bottle Channel Name: Bottle_Number -The following BINAVE parameters were used: Bin channel = Bottle_Number Averaging interval = 1.00 Minimum bin value = 0.000 Average value was used Interpolated values were NOT used for empty bins Channel 'NUMBER_OF_BIN_RECORDS' was added to file. -The following MERGE parameters were used: 2020/11/16 09:12:35 Merge Channel: Bottle_Number Merge Scheme Used: 4: Add Secondary to Matching Primary Overlap Scheme Used: Keep Primary Primary Channels to Include: Scan_Number, Bottle:Position, Bottle_Number, Pressure, Depth:Salt_Water, Temperature:Primary, Temperature:Secondary, Conductivity:Primary, Conductivity:Secondary, Transmissivity:1, Transmissivity:2, Fluorescence:URU:Seapoint, Oxygen:Voltage:SBE, pH:SBE, PAR, PAR:Reference, Status:Pump, Altimeter, Descent_Rate, Salinity:T0:C0, Salinity:T1:C1, Oxygen:Dissolved:SBE, Flag, Sample_Number, Number_of_bin_records Secondary Channels to Include: Temperature:Draw, Salinity:Bottle, Flag:Salinity:Bottle, Chlorophyll:Extracted, Flag:Chlorophyll:Extracted, Phaeo-Pigment:Extracted, Oxygen:Dissolved, Flag:Oxygen:Dissolved, Nitrate_plus_Nitrite, Flag:Nitrate_plus_Nitrite, Silicate, Flag:Silicate, Phosphate, Flag:Phosphate, Ammonium, Flag:Ammonium, Dimethyl_Sulphide, Flag:Dimethyl_Sulphide, Dimethylsulfoniopropionate_Dissolved, Flag:Dimethylsulfoniopropionate_Dissolved, Dimethylsulfoniopropionate_Total, Flag:Dimethylsulfoniopropionate_Total Primary file : D:\Telework\2020-005\Processing\hydro\2020-005-0241.samavg Secondary file: D:\Telework\2020-005\Processing\hydro\2020-005-0241.mrgcln1s 8 secondary records matched to primary records. Comments from secondary file: D:\Telework\2020-005\Processing\hydro\2020-005-0241.mrgcln1s ------------------------------------------------------------ -CLEAN functions: 2020/11/16 08:58:10 20 Reduce header to sections: FIL ADM LOC DEP REC INS HIS RAW CAL COM Remarks removed from kept sections. -SORT parameters: 2020/11/16 08:58:27 Sorted in ascending order of channel Bottle_Number -CLEAN functions: 2020/11/16 13:31:46 20 Reset #RECS, MIN & MAX values in header. Change character data from " " to "0" in channels Flag:* -CALIB parameters: 2020/11/16 13:32:34 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = D:\Telework\2020-005\Processing\doc\2020-005-recal1.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 19 Salinity:T0:C0 PSS-78 10 0.3000000E-02 0.1000000E+01 20 Salinity:T1:C1 PSS-78 10 -0.3000000E-02 0.1000000E+01 21 Oxygen:Dissolved:SBE mL/L 10 -0.8500000E-02 0.1030800E+01 -SORT parameters: 2020/11/16 13:39:51 Sorted in ascending order of channel Press* -REMOVECH 2020/11/16 13:41:33 The following CHANNEL(S) were removed: Scan_Number Temperature:Secondary [deg C (ITS90)] Conductivity:Secondary [S/m] Oxygen:Voltage:SBE [volts] Status:Pump Altimeter [metres] Descent_Rate [m/s] Salinity:T1:C1 [PSS-78] Flag -CHANGE units: Temperature reference channel: Temperature:Primary [deg C (ITS90)] Salinity reference channel: Salinity:T0:C0 [PSS-78] 'Oxygen:Dissolved:SBE' changed from mL/L to umol/kg -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T0:C0 [PSS-78] 'Oxygen:Dissolved' changed from mL/L to umol/kg -HEADER EDITS: 2020/11/16 14:19:28 Applied edit header: D:\Telework\2020-005\Processing\doc\HYDRO\2020-005-bot-hdr.txt Channel 3: Pressure [decibar] Format: F10.3 ==> F7.1 Channel 4: Depth [metres] Name: Depth:Salt_Water ==> Depth Format: F10.3 ==> F7.1 Channel 6: Conductivity:Primary [S/m] Format: F11.6 ==> F10.6 Channel 8: Transmissivity:Green [%/metre] Name: Transmissivity2 ==> Transmissivity:Green Channel 10: PAR [uE/m^2/sec] Format: F11.3 ==> F7.1 Channel 11: PAR:Reference [uE/m^2/sec] Format: F11.3 ==> F7.1 Channel 13: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 Channel 17: Temperature:Draw [deg C (ITS90)] Format: F7.2 ==> F6.1 Channel 26: Nitrate_plus_Nitrite [umol/L] Format: F6.2 ==> F7.2 -CALIB parameters: 2021/01/20 13:55:59 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = 2000-005-transcor.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 8 Transmissivity:Green %/metre 10 -0.2000000E-01 0.1439800E+01 -SORT parameters: 2021/02/15 14:49:57 Sorted in ascending order of channel Sample_Number [n/a] -REMOVECH 2021/02/15 15:35:03 The following CHANNEL(S) were removed: Salinity:Bottle [PSS-78] Flag:Salinity:Bottle -The following MERGE parameters were used: 2021/02/15 17:15:29 Merge Channel: Sample_Number Merge Scheme Used: 2: Add Secondary to Closest Primary Overlap Scheme Used: Keep Primary Primary Channels to Include: ALL Secondary Channels to Include: Salinity:Bottle [ ], Flag:Salinity_Bottle [ ] Primary file : V:\OSD_DataProcessing\Cruise_Data\2020-005\SamH\2020-005-0241.rem Secondary file: V:\OSD_DataProcessing\Cruise_Data\2020-005\SamH\2020-005-0241.sal 2 secondary records matched to primary records. -SORT parameters: 2021/02/18 14:15:55 Sorted in ascending order of channel Pressure [decibar] -CALIB parameters: 2021/02/18 14:33:44 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = V:\OSD_DataProcessing\Cruise_Data\2020-005\SamH\2020-005\Bottle\2020005salcor. ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 13 Salinity:T0:C0 PSS-78 10 -0.6000000E-02 0.1000000E+01 -HEADER EDITS: 2022/12/01 14:49:53 Channel 30: Salinity:Bottle [PSS-78] Units: ==> PSS-78 -HEADER EDITS: 2025/02/18 15:12:44 Channel 7: Conductivity:Primary [S/m] Format: F10.6 ==> F10.5 Channel 19: Flag:Chlorophyll:Extracted [n/a] Units: ==> n/a Pad: 0 ==> -99 Channel 23: Flag:Oxygen:Dissolved [n/a] Units: ==> n/a Pad: 0 ==> -99 Channel 25: Flag:Nitrate_plus_Nitrite [n/a] Units: ==> n/a Pad: 0 ==> -99 Channel 27: Flag:Phosphate [n/a] Units: ==> n/a Pad: 0 ==> -99 Channel 29: Flag:Salinity:Bottle [n/a] Name: Flag:Salinity_Bottle ==> Flag:Salinity:Bottle Units: ==> n/a Channel 31: Flag:Silicate [n/a] Name: Silicate:Flag ==> Flag:Silicate Units: ==> n/a -CLEAN functions: 2025/02/18 15:28:45 20 Reset #RECS, MIN & MAX values in header. Interpolation by Record Number, in Pressure Change character data from " " to "0" in channels *Bottle Set event to last 4 characters of file name $END *COMMENTS ===================================================================================== Silicate correction was applied after the original processing. 2023/03/19 ------------------------------------------------------------------------------------- Silicate data has been adjusted to account for salinity effect and analysis on the Water Properties Group Astoria Pacific continuous flow nutrient analyser. Adjustment was made for salinity values (when available) of <= 25 psu. Adjustment equation: Silicate:Corrected = Silicate * [1+((-0.003)*(32-S))] where, Silicate:Corrected = corrected silicate concentration in micromoles/litre Silicate = uncorrected silicate concentration in micromoles/litre -0.003 = salt correction factor 32 = salt concentration of artificial seawater used by the WPG Astoria Pacific continuous flow analyser S = salinity of the sample At Station: JI4, Sample Number: 567, Silicate corrected using CTD salinity. At Station: JI4, Sample Number: 566, Silicate corrected using Bottle salinity. At Station: JI4, Sample Number: 565, Silicate corrected using CTD salinity. ===================================================================================== SBE HEADER Sea-Bird SBE 9 Data File: FileName = C:\CTD data\2020-005\2020-005-0241.hex Software Version Seasave V 7.26.7.121 Temperature SN = 4700 Conductivity SN = 3531 Number of Bytes Per Scan = 40 Number of Voltage Words = 5 Number of Scans Averaged by the Deck Unit = 1 System UpLoad Time = Jul 09 2020 14:07:10 NMEA Latitude = 49 47.18 N NMEA Longitude = 124 05.67 W NMEA UTC (Time) = Jul 09 2020 14:04:59 Store Lat/Lon Data = Append to Every Scan SBE 11plus V 5.1e number of scans to average = 1 pressure baud rate = 9600 NMEA baud rate = 4800 surface PAR voltage added to scan A/D offset = 0 GPIB address = 1 advance primary conductivity 0.073 seconds advance secondary conductivity 0.073 seconds S> Tully: 2020-005 Station: JI4 Depth: 605 System UTC = Jul 09 2020 14:07:10 # nquan = 22 # nvalues = 1928 # units = specified # name 0 = scan: Scan Count # name 1 = bpos: Bottle Position in Carousel # name 2 = nbf: Bottles Fired # name 3 = prDM: Pressure, Digiquartz [db] # name 4 = depSM: Depth [salt water, m] # name 5 = t090C: Temperature [ITS-90, deg C] # name 6 = t190C: Temperature, 2 [ITS-90, deg C] # name 7 = c0S/m: Conductivity [S/m] # name 8 = c1S/m: Conductivity, 2 [S/m] # name 9 = CStarTr0: Beam Transmission, WET Labs C-Star [%] # name 10 = CStarTr1: Beam Transmission, WET Labs C-Star, 2 [%] # name 11 = flSP: Fluorescence, Seapoint # name 12 = sbeox0V: Oxygen raw, SBE 43 [V] # name 13 = par: PAR/Irradiance, Biospherical/Licor # name 14 = spar: SPAR/Surface Irradiance # name 15 = pumps: Pump Status # name 16 = altM: Altimeter [m] # name 17 = dz/dtM: Descent Rate [m/s] # name 18 = sal00: Salinity, Practical [PSU] # name 19 = sal11: Salinity, Practical, 2 [PSU] # name 20 = sbeox0ML/L: Oxygen, SBE 43 [ml/l] # name 21 = flag: 0.000e+00 # interval = seconds: 0.0416667 # start_time = Jul 09 2020 14:04:59 [NMEA time, header] # bad_flag = -9.990e-29 # # # # # 4700 # 11-Dec-19 # 1 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.000 # 4.34737905e-003 # 6.38078009e-004 # 2.09621423e-005 # 1.75443016e-006 # 1000.000 # 1.00000000 # 0.0000 # # # # # # 3531 # 12-Dec-19 # 1 # # 0.0000 # 2000.0000 # 0 # # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.0 # -9.57000000e-008 # # # -1.00964049e+001 # 1.54614863e+000 # -2.86093808e-003 # 3.17937269e-004 # -9.57000000e-008 # 3.2500e-006 # # 0.00000000e+000 # # 1.00000000 # 0.00000 # # # # # # 0443 # 09-Jan-20 # -4.435292e+004 # -1.635794e-001 # 1.192740e-002 # 3.979900e-002 # 0.000000e+000 # 2.993627e+001 # -3.271008e-004 # 3.759160e-006 # 1.565300e-009 # 0.99985102 # -0.80000 # 0.000000e+000 # 1.282462e-002 # -8.599824e+000 # # # # # # 4888 # 11-Dec-19 # 1 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.000 # 4.32601814e-003 # 6.34316040e-004 # 2.17780633e-005 # 2.00921895e-006 # 1000.000 # 1.00000000 # 0.0000 # # # # # # 4513 # 28-Jan-20 # 1 # # 0.0000 # 2000.0000 # 0 # # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.0 # -9.57000000e-008 # # # -1.00663472e+001 # 1.38017090e+000 # -1.01844528e-003 # 1.34567928e-004 # -9.57000000e-008 # 3.2500e-006 # # 0.00000000e+000 # # 1.00000000 # 0.00000 # # # # # # 3791 # 07-Dec-19 # 1 # # # 0.0000 # 0.0000e+000 # 0.0000 # 0.00e+000 # 0.0000 # 0.0 # # # # 5.6050e-001 # -0.4969 # -3.5626e-003 # 1.3466e-004 # -2.2613e-006 # 2.5826e+000 # 1.92634e-004 # -4.64803e-002 # 3.6000e-002 # 1.2600 #

-3.3000e-002

#

5.0000e+003

#

1.4500e+003

# # # # # # # 3640 # # # 2 # 0.000 # # # # # # 1185DR # Feb 8th 2020 # 19.6189 # -1.1261 # 0.250 # # # # # # 1883DG # feb 8th 2020 # 18.9045 # -0.0699 # 0.250 # # # # # # 70613 # 03/21/16 # 1.00000000 # 0.00000000 # 11876484560.57000000 # 1.00000000 # -0.08460000 # # # # # # # # # 62355 # # 15.000 # 0.000 # # # # # # # # # # # # 20518 # 21-MAR-2016 # 1627.10000000 # 1.00000000 # # # # datcnv_date = Oct 08 2020 12:47:42, 7.23.2 # datcnv_in = D:\Telework\2020-005\Unprocessed\CTD\2020-005-0241.hex D:\Telework \2020-005\Processing\doc\2020-005-ctd.XMLCON # datcnv_ox_hysteresis_correction = no # datcnv_ox_tau_correction = no # datcnv_bottle_scan_range_source = BL file # datcnv_scans_per_bottle = 241 END* Comments from secondary file: D:\Telework\2020-005\Processing\hydro\2020-005-0241.mrgcln1s ------------------------------------------------------------ Comments from secondary file: D:\Telework\2020-005\Processing\hydro\2020-005-0241.oxy ------------------------------------------------------- Sample_Number 563: OXY: Endpoint was ambiguous. Sample over-titrated. Comments from secondary file: D:\Telework\2020-005\Processing\hydro\2020-005-0241.nut ------------------------------------------------------- Sample_Number 561: NUTS: Sample tube cracked, sample moved to new tube, possibly compromised Sample_Number 566: NUTS: Observed to be possible low salinity sample, PO4 manually adjusted Sample_Number 567: NUTS: Observed to be possible low salinity sample, PO4 manually adjusted Analysis methods: ----------------- Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -80C prior to analysis. Samples were extracted in 90% acetone at -20C for 24 hours in the lab and analyzed on a Turner 10AU fluorometer calibrated with commercially pure chlorophyll a standard (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen et al 1965). Chlorophyll samples were analyzed at IOS in Room 2423 ~4 weeks after the cruise, during the COVID-19 pandemic restriction. The average of two samples is reported. Variability is assessed as the CV% (std dev / mean*100). Flags and comments apply to chlorophyll values only. Precision Statement: Excluding degraded samples, chlorophyll values ranged from 0.02-33.18ug/l in 386 samples. Average %CV for this cruise was 3% with 0 out of 44 duplicate pairs having a CV>10% and 0 duplicate pairs having a CV>30%. Our average dataset %CV is 3.80% for 2013 - 2018 so the overall quality of this dataset is good. For details see worksheet “CV%” in file QF2020-005_CHL*.xlsx. Oxygen samples were analyzed at sea using an automated Winkler titration System (Metrohm Dosimat model 876 and a UV light source and detector with a 365nm filter controlled by LV02_876 software designed and constructed by Scripps Institution of Oceanography) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). For details including a duplicate analysis, see document QF2020-005OXY*.xlsx. Salinity samples were collected in 200 mL type ll glass bottles with disposable nylon inserts and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab on a Guildline 8400B Salinometer standardized with IAPSO standard seawater 10 - 30 days after collection. For details including a duplicate analysis, see document QF2020-005SAL*.xlsx. Nutrient samples were collected in plastic tubes and quick frozen in aluminum blocks stored in a -20C freezer. For samples 400m and deeper a second set of samples are collected and stored cool for silicate analysis. All samples were returned to the Insitute of Ocean Sciences and they were analyzed using an Astoria-Pacific Analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke and Whitney. For details including a duplicate analysis, see document QF2020-005nuts*.xlsx. The ammonium method used at IOS is a simplification of the fluorometric technique of Holmes et al, 1999. This method applies to a wide range of ammonium concentrations, uses the addition of a single working reagent and reduces contamination. Typically, samples are collected during the day and stored in the cold room. The working reagent is added to standards and samples at the same time, and the fluorescence is read approximately 8 hours later using a calibrated TD 700 Fluorometer. Standards are made in LNSW collected at 250m at station LB14. For full details including a precision study see file 2020-005NH4*.xls. References: 1. Barwell-Clarke, J. and Whitney, F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. 2. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 3. Culberson, C.H. 1991. Dissolved oxygen. WOCE Hydrographic Programme Operations and Methods (July 1991). 15pp. 4. Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., and Strickland J.D.H. 1965. Fluorometric Determination of Chlorophyll. J.du Cons. Intl. Pour l’Epl. De la Mer. 30:3-15. 5. Holmes, R.M., Aminto, A., Kérouel, R., Hooker, B. A., and Peterson, B.J. (1999). A simple and precise method for measuring ammonium in marine and freshwater ecosystems. Can. J. Fish. Aquat. Sci., 56: 1801-1808. * For PDF versions of these papers see folder \\Cruise_Data\DOCUMENTS\Analysis Reference Papers --------------------------------------------------------------------------------- CTD Data Processing Notes: -------------------------- Conductivity, Transmissivity, Fluorescence:URU:Seapoint, pH:SBE and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. pH:SBE data are available for events #1-24 only. The pH:SBE:Nominal data should be used with caution; no field calibration data are available. Calibration is required for each cast to get absolute values, although general trends within a cast are likely real. There were 2 WetLabs CStar transmissometers in use during this cruise: Channel Transmissometer refers to sensor #1185DR (650nm - red) Channel Transmissometer:Green refers to sensor #1883DG (530nm - green) For comparison with other Institute of Ocean Sciences cruises, note that the transmissometer wavelength is 650nm unless otherwise stated. NOTE: While the CTD fluorescence data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples, particularly for casts far from shore. It is recommended that users check extracted chlorophyll values where available. For details on the processing see the report: 2020-005_Processing_Report.doc. --------------------------------------------------------------------------------- *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- --------- ---- ------ ------------ Salinity:T0:C0 PSS-78 10 -99 () (0.3E-02 1) Salinity:T1:C1 PSS-78 10 -99 () (-0.3E-02 1) Oxygen:Dissolved:SBE mL/L 10 -99 () (-0.85E-02 1.0308) Transmissivity:Green %/metre 10 -99 () (-0.2E-01 1.4398) Salinity:T0:C0 PSS-78 10 -99 () (-0.6E-02 1) $END !-1-- 2- 3- --4--- --5--- ---6---- ----7---- --8-- --9-- ---10-- --11-- --12-- ---13--- --14-- --15- -16- --17- --18-- 19 --20-- ---21-- --22- 23 --24-- 25 ---26-- 27 ---28--- 29 --30-- 31 !Samp Bo Bo Pressu Depth Temperat Conductiv Trans Trans Fluores PAR PAR: Salinity Oxygen Oxyge Numb Tempe Chloro Fl Phaeo- Oxygen: Oxyge Fl Nitrat Fl Phospha Fl Salinity Fl Silica Fl !le_ tt tt re ure: ity: missi missi cence: Refere :T0:C0 : n: er_o ratur phyll: ag Pigmen Dissolv n: ag e_ ag te ag :Bottle ag te ag !Numb ~i ~u Primary Primary vity vity: URU: nce Dissol Disso ~bin e: Extrac ~a t: ed Disso ~o plus_ ~t ~p ~o ~i !er ti mb Green Seapoin ved: lved: _rec Draw ted ct Extrac lved lv Nitrit ri ha tt ca ! on er t SBE SBE ords ed ted ed e te te le te !---- -- -- ------ ------ -------- --------- ----- ----- ------- ------ ------ -------- ------ ----- ---- ----- ------ -- ------ ------- ----- -- ------ -- ------- -- -------- -- ------ -- *END OF HEADER 567 8 8 1.6 1.6 17.6465 2.39038 39.7 48.6 1.772 64.3 160.9 17.1526 6.84 301.9 241 19.5 3.23 0 0.65 6.804 300.3 0 0.38 36 0.200 36 -99.0000 0 42.15 36 566 7 7 5.1 5.1 17.9894 2.52563 34.3 37.7 2.464 13.4 160.8 18.0666 6.92 305.0 241 19.1 2.28 0 0.73 6.600 291.1 0 0.76 3 0.282 3 18.5095 0 39.54 3 565 6 6 10.0 10.0 15.2616 2.88318 47.5 61.9 0.591 1.9 158.9 22.3592 5.63 247.4 241 16.1 0.51 6 0.51 5.311 233.4 0 9.25 0 1.093 0 -99.0000 0 42.47 0 564 5 5 24.9 24.7 10.8042 3.25610 54.6 81.3 0.347 0.0 158.0 28.7494 4.22 184.3 241 12.6 0.25 0 0.29 4.182 182.7 0 21.72 0 2.032 0 -99.0000 0 45.91 0 563 4 4 49.7 49.3 9.4828 3.26648 56.7 86.2 0.181 0.0 156.9 29.9116 3.87 168.9 241 11.5 0.12 0 0.15 3.855 168.3 2 26.59 0 2.403 0 -99.0000 0 51.21 0 562 3 3 100.4 99.6 9.0019 3.26420 57.4 88.2 0.176 0.0 158.9 30.2721 3.20 139.5 241 11.2 0.17 0 0.19 3.140 137.0 6 31.82 0 2.731 0 -99.0000 0 59.02 0 561 2 2 250.0 247.7 9.2706 3.36775 51.9 77.6 0.156 0.0 166.8 31.0401 2.59 112.9 241 11.4 0.03 0 0.09 2.594 113.1 0 29.86 3 2.801 3 -99.0000 0 70.28 3 560 1 1 602.6 596.5 9.6609 3.42987 52.3 79.5 0.116 0.0 178.8 31.1884 1.97 86.0 241 11.6 0.03 0 0.08 1.985 86.6 0 29.24 0 2.931 0 31.1836 0 79.37 0