*2026/01/28 14:23:38.21 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/08 10:02:58.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 34 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 3B0CA8C1 NUMBER OF CHANNELS : 12 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- -------------------------- --------------- -------------- -------------- 1 Pressure decibar 2 35 2 Depth metres 2.29 34.69 3 Temperature:Primary 'deg C (ITS90)' 9.3675 13.7094 4 Conductivity:Primary S/m 3.520875 3.822734 5 Salinity:T0:C0 PSS-78 31.8027 32.6207 6 Oxygen:Dissolved:SBE mL/L 2.741 7.669 7 Oxygen:Dissolved:SBE umol/kg 119.4043 334.5431 8 Fluorescence:URU:Wetlabs mg/m^3 0.161 4.403 9 Transmissivity %/metre 39.9 55.6 10 Transmissivity:Green %/metre 62.6 85.5 11 PAR uE/m^2/sec 0 0.63 12 Number_of_bin_records n/a 7 57 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F ' ' 1 2 -99 ' ' 7 F ' ' 1 3 -99 ' ' 9 F ' ' 4 4 -99 ' ' 10 F ' ' 5 5 -99 ' ' 9 F R4 4 6 -99 ' ' 7 F ' ' 2 7 -99 ' ' 6 F ' ' 1 8 -99 ' ' 8 F ' ' 3 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 6 F ' ' 1 11 -99 ' ' 7 F ' ' 1 12 ' ' ' ' 5 I I 0 $END $REMARKS This file converted from Sea-Bird file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\SeaBird_Steps\5_DERIVE\2024-020-0075.cnv $END *ADMINISTRATION MISSION : 2024-020 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : La Perouse SCIENTIST : Sastri A. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : LD02 EVENT NUMBER : 75 LATITUDE : 48 58.39000 N ! (deg min) LONGITUDE : 125 47.04000 W ! (deg min) WATER DEPTH : 43 ALTIMETER (M) : 9.43 ! custom item $REMARKS Altimeter value is distance from bottom and is calculated as the median of the deepest 2 metres of data. $END *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item $TABLE: SENSORS ! Name Abs Depth Serial No ! ----------------------------------- -------------- ---------- Temperature ' ' 2106 Conductivity ' ' 2754 'Pressure:Digiquartz with TC' ' ' 0443 Temperature:2 ' ' 5130 Conductivity:2 ' ' 1766 'Oxygen:SBE 43' ' ' 4372 Fluorometer:Seapoint ' ' 4186 Altimeter ' ' 76341 PAR/Irradiance:Biospherical/Licor ' ' 70613 'Fluorometer:WET Labs ECO-AFL/FL' ' ' FLRTD-2216 'Transmissometer:WET Labs C-Star' ' ' 1185DR 'Transmissometer:WET Labs C-Star:2' ' ' 1883DG $END $REMARKS Software Version Seasave V 7.26.7.121 $END *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SBE_IOS 4.3 2025/12/15 13:16:17 14124 14124 CLEAN 5.3 2025/12/15 13:25:04 14124 14124 SHIFTDAT 3.5.1 2026/01/05 11:10:41 14124 14124 DELETE 6.3 2026/01/05 11:46:29 14124 1016 CTDEDIT 5.5.1 2026/01/07 12:53:08 1016 858 CALIB 12.1 2026/01/28 12:53:54 858 858 FILTERS 4.3 2026/01/28 13:09:37 858 858 FILTERS 4.3 2026/01/28 13:25:34 858 858 BINAVE 4.2.1 2026/01/28 13:33:41 858 34 REMOVECH 8.2 2026/01/28 13:53:04 34 34 REMOVECH 8.2 2026/01/28 13:54:17 34 34 CHGUNITS 3.2 2026/01/28 13:56:31 34 34 REORDER 1.3.1 2026/01/28 13:59:05 ? ? HDREDIT2 3.2 2026/01/28 14:23:38 ? ? $END $REMARKS -CLEAN functions: 2025/12/15 13:22:20 20 Reset #RECS, MIN & MAX values in header. Set event to last 3 characters of file name -The following SHIFT parameters were used. Shift Channel: Fluorescence:URU:Seapoint # of Records to Advance (-ve for Delay): At REC# 0 Shift= 24.00 Salinity was recalculated after shift -The following DELETE parameters were used: Surface Record Removal: Last Press Min Maximum Surface Pressure (relative): 10.00 Surface Swell Pressure Tolerance: 1.00 Pressure filtered over width: 15 Swells deleted. Warning message if pressure difference of 2.00 Drop rates < 0.30m/s (calculated over 11 points) will be deleted. Drop rate applies in the range 10.00 to 26.54 dbars Sample interval (from FILE section of header) = 0.042 seconds. -CTDEDIT v5.5.1 2026/01/07 12:53:08 158 records were deleted in this editing session. 858 changes in channel Fluorescence:URU:Wetlabs:ECO-AFL -CALIB parameters: 2026/01/28 12:53:54 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Salinity is computed Calibration file = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\2024-020-recal1.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 19 Oxygen:Dissolved:SBE mL/L 10 -0.9900000E-02 0.1000100E+01 Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 17 Salinity:T0:C0 PSS-78 10 -0.2000000E-03 0.1000000E+01 -The following FILTER parameters were used. Median filter was used. Filter width = 11 The following channel(s) were filtered. Fluorescence:URU:Wetlabs:ECO-AFL -The following FILTER parameters were used. Median filter was used. Filter width = 11 The following channel(s) were filtered. Fluorescence:URU:Wetlabs:ECO-AFL -The following BINAVE parameters were used: Bin channel = Pressure [decibar] Averaging interval = 1.00 Minimum bin value = 0.000 Bin value was used Interpolated values were NOT used for empty bins Channel 'NUMBER_OF_BIN_RECORDS' was added to file. -REMOVECH 2026/01/28 13:53:04 The following CHANNEL(S) were removed: Scan_Number Temperature:Secondary [deg C (ITS90)] Conductivity:Secondary [S/m] Oxygen:Voltage:SBE [volts] Altimeter [metres] Status:Pump Descent_Rate [m/s] Fluorescence:URU:Seapoint [mg/m^3] Salinity:T1:C1 [PSS-78] Flag Prediction_Flag -REMOVECH 2026/01/28 13:54:17 The following CHANNEL(S) were removed: Descent_Rate [m/s] -CHANGE units: Temperature reference channel: Temperature:Primary Salinity reference channel: Salinity:T0:C0 'Oxygen:Dissolved:SBE' changed from mL/L to umol/kg -HEADER EDITS: 2026/01/28 14:23:38 Applied edit header: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\2024-020-hdr.txt Channel 1: Pressure [decibar] Format: F10.3 ==> F7.1 Channel 2: Depth [metres] Name: Depth:Salt_Water ==> Depth Format: F10.3 ==> F7.1 Channel 4: Conductivity:Primary [S/m] Format: F11.6 ==> F10.5 Channel 6: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 Channel 9: Transmissivity [%/metre] Name: Transmissivity:1 ==> Transmissivity Channel 10: Transmissivity:Green [%/metre] Name: Transmissivity:2 ==> Transmissivity:Green Channel 8: Fluorescence:URU:Wetlabs [mg/m^3] Name: Fluorescence:URU:Wetlabs:ECO-AFL ==> Fluorescence:URU:Wetlabs Channel 11: PAR [uE/m^2/sec] Units: umol/m^2/sec ==> uE/m^2/sec Format: F11.3 ==> F7.1 $END *COMMENTS SBE HEADER Sea-Bird SBE 9 Data File: FileName = C:\CTD data\2024-020\2024-020-0075.hex Software Version Seasave V 7.26.7.121 Temperature SN = 2106 Conductivity SN = 2754 Number of Bytes Per Scan = 37 Number of Voltage Words = 4 Number of Scans Averaged by the Deck Unit = 1 System UpLoad Time = Sep 08 2024 10:02:58 NMEA Latitude = 48 58.39 N NMEA Longitude = 125 47.04 W NMEA UTC (Time) = Sep 08 2024 09:59:48 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 GPIB address = 1 advance primary conductivity 0.073 seconds advance secondary conductivity 0.073 seconds advance voltage 6 0.000 seconds advance voltage 7 0.000 seconds S> Tully: 2024-020 Station: LD02 Depth: 43 System UTC = Sep 08 2024 10:02:58 # nquan = 21 # nvalues = 14124 # units = specified # name 0 = scan: Scan Count # name 1 = prDM: Pressure, Digiquartz [db] # name 2 = depSM: Depth [salt water, m] # name 3 = t090C: Temperature [ITS-90, deg C] # name 4 = t190C: Temperature, 2 [ITS-90, deg C] # name 5 = c0S/m: Conductivity [S/m] # name 6 = c1S/m: Conductivity, 2 [S/m] # name 7 = CStarTr0: Beam Transmission, WET Labs C-Star [%] # name 8 = sbeox0V: Oxygen raw, SBE 43 [V] # name 9 = altM: Altimeter [m] # name 10 = pumps: Pump Status # name 11 = dz/dtM: Descent Rate [m/s] # name 12 = flECO-AFL: Fluorescence, WET Labs ECO-AFL/FL [mg/m^3] # name 13 = CStarTr1: Beam Transmission, WET Labs C-Star, 2 [%] # name 14 = par: PAR/Irradiance, Biospherical/Licor # name 15 = flSP: Fluorescence, Seapoint # name 16 = sal00: Salinity, Practical [PSU] # name 17 = sal11: Salinity, Practical, 2 [PSU] # name 18 = sbeox0ML/L: Oxygen, SBE 43 [ml/l], WS = 2 # name 19 = dz/dtM: Descent Rate [m/s], WS = 2 # name 20 = flag: flag # span 0 = 1, 14124 # span 1 = 1.678, 36.538 # span 2 = 1.664, 36.225 # span 3 = 9.3532, 13.8185 # span 4 = 9.3526, 13.8163 # span 5 = 3.520648, 3.830693 # span 6 = 3.520676, 3.830408 # span 7 = 61.8493, 86.6084 # span 8 = 1.3515, 3.2002 # span 9 = 8.62, 45.03 # span 10 = 0, 1 # span 11 = -1.394, 1.593 # span 12 = 0.0874, 9.7724 # span 13 = 82.4970, 96.6923 # span 14 = 1.0000e-12, 8.1498e-01 # span 15 = 8.5470e-02, 8.7057e+00 # span 16 = 31.6980, 32.6346 # span 17 = 31.7809, 32.6343 # span 18 = 2.6939, 7.9750 # span 19 = -1.308, 1.546 # span 20 = 0.0000e+00, 0.0000e+00 # interval = seconds: 0.0416667 # start_time = Sep 08 2024 10:02:58 [System UTC, header] # bad_flag = -9.990e-29 # # # # # 2106 # 15-Feb-23 # 1 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.000 # 4.14692690e-003 # 6.30774382e-004 # 2.10717013e-005 # 2.11511943e-006 # 1000.000 # 1.00000000 # 0.0000 # # # # # # 2754 # 14-Feb-23 # 1 # # 0.0000 # 2000.0000 # 0 # # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.0 # -9.57000000e-008 # # # -1.06129987e+001 # 1.62039974e+000 # -3.87914662e-003 # 3.93074083e-004 # -9.57000000e-008 # 3.2500e-006 # # 0.00000000e+000 # # 1.00000000 # 0.00000 # # # # # # 0443 # 23-Mar-22 # -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 # 0.99982783 # -2.24792 # 0.000000e+000 # 1.282462e-002 # -8.599824e+000 # # # # # # 5130 # 18-Mar-23 # 1 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.000 # 4.36041069e-003 # 6.40314647e-004 # 2.15484838e-005 # 1.88531001e-006 # 1000.000 # 1.00000000 # 0.0000 # # # # # # 1766 # 18-Jan-23 # 1 # # 0.0000 # 2000.0000 # 0 # # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.0 # -9.57000000e-008 # # # -4.12945799e+000 # 4.88701129e-001 # -7.05780608e-004 # 5.84314106e-005 # -9.57000000e-008 # 3.2500e-006 # # 0.00000000e+000 # # 1.00000000 # 0.00000 # # # # # # 4372 # 27-Mar-23 # 1 # # # 0.0000 # 0.0000e+000 # 0.0000 # 0.00e+000 # 0.0000 # 0.0 # # # # 5.2078e-001 # -0.5324 # -4.6090e-003 # 1.7376e-004 # -2.8493e-006 # 2.5826e+000 # 1.92634e-004 # -4.64803e-002 # 3.6000e-002 # 1.2400 #

-3.3000e-002

#

5.0000e+003

#

1.4500e+003

# # # # # # # 4186 # Aug 2023 # # 2 # 0.000 # # # # # # 76341 # 2021-02-10 # 15.000 # 0.000 # # # # # # 70613 # 2021-02-24 # 1.00000000 # 0.00000000 # 8620689655.17000010 # 1.00000000 # -0.11660000 # # # # # # FLRTD-2216 # 8-Mar-17 # 1.20000000e+001 # # 0.0440 # # # # # # # # # 1185DR # 2024-01-11 # 19.8801 # -1.1650 # 0.250 # # # # # # 1883DG # 2024-01-11 # 20.2896 # -0.0487 # 0.250 # # # # datcnv_date = Dec 15 2025 11:13:32, 7.26.7.129 [datcnv_vars = 16] # datcnv_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\Raw CTD data\2024-020-0075.hex C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\2024-020-v1.XMLCON # datcnv_skipover = 0 # datcnv_ox_hysteresis_correction = yes # wildedit_date = Dec 15 2025 11:20:47, 7.26.7.129 # wildedit_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\1_DATA CNV\2024-020-0075.cnv # wildedit_pass1_nstd = 2.0 # wildedit_pass2_nstd = 5.0 # wildedit_pass2_mindelta = 0.000e+000 # wildedit_npoint = 50 # wildedit_vars = prDM depSM t090C t190C c0S/m c1S/m flECO-AFL CStarTr1 par flSP # wildedit_excl_bad_scans = yes # alignctd_date = Dec 15 2025 11:23:11, 7.26.7.129 # alignctd_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\2_WILD EDIT\2024-020-0075.cnv # alignctd_adv = sbeox0V 2.500 # celltm_date = Dec 15 2025 11:29:23, 7.26.7.129 # celltm_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\3_ALIGNC TD\2024-020-0075.cnv # celltm_alpha = 0.0245, 0.0245 # celltm_tau = 9.5000, 9.5000 # celltm_temp_sensor_use_for_cond = primary, secondary # Derive_date = Dec 15 2025 11:43:27, 7.26.7.129 [derive_vars = 4] # Derive_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\4_CELLTM \2024-020-0075.cnv C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\CTD\2024-020-v1.XMLCON # derive_time_window_docdt = seconds: 2 # derive_ox_tau_correction = yes # derive_time_window_dzdt = seconds: 2 # file_type = ascii END* Remarks from CTDEDIT: Removed a few shed wakes and where descent rate dropped below 0.2 m/s CTD Data Processing Notes: -------------------------- Conductivity, Transmissivity and Fluorescence are nominal and unedited except that some records were removed in editing temperature and salinity. NOTE: While the 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. 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. The SBE DO sensor has a fairly long response time so data accuracy is not as high when it is in motion as it is during stops for bottles. This will be especially true when vertical DO gradients are large. To get an estimate of the accuracy of the SBE DO data during downcasts (after recalibration) a rough comparison was made between downcast SBE DO and upcast titrated samples. Some of the difference will be due to problems with flushing of Niskin bottles and/or analysis errors, so the following statement likely underestimates SBE DO accuracy. Downcast (CTD files) Oxygen:Dissolved:SBE data for this cruise are considered, very roughly, to be: <0.08mL/L for pressure <200db <0.04mL/L for pressure between 200-300db <0.02mL/L for pressure >300db For details on the processing see the report: 2024-020_Processing_Report.doc. --------------------------------------------------------------------------------- *CALIBRATION $TABLE: CALCULATED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------- -------- ---- ------ ------------ Salinity:T0:C0 PSS-78 10 -99 () (-0.2E-03 1) $END $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ------ ---- ------ ------------ Oxygen:Dissolved:SBE mL/L 10 -99 () (-0.99E-02 1.0001) $END !--1--- --2--- ---3---- ----4---- ---5---- --6--- --7-- ---8--- --9-- --10- --11-- -12- !Pressu Depth Temperat Conductiv Salinity Oxygen Oxyge Fluores Trans Trans PAR Numb !re ure: ity: :T0:C0 : n: cence: missi missi er_o ! Primary Primary Dissol Disso URU: vity vity: ~bin ! ved: lved: Wetlabs Green _rec ! SBE SBE ords !------ ------ -------- --------- -------- ------ ----- ------- ----- ----- ------ ---- *END OF HEADER 2.0 2.3 13.7094 3.82273 31.8027 7.67 334.5 1.860 44.8 67.1 0.6 7 3.0 3.0 13.6256 3.81699 31.8189 7.64 333.4 1.850 44.5 66.1 0.3 15 4.0 4.0 13.5008 3.80808 31.8396 7.65 333.5 1.698 44.8 67.0 0.0 22 5.0 4.9 13.6204 3.81726 31.8249 7.41 323.1 2.074 44.3 66.6 0.1 57 6.0 5.9 12.8361 3.75994 31.9454 6.96 303.3 1.948 45.4 68.6 0.0 39 7.0 6.9 12.1698 3.71155 32.0509 6.92 301.6 1.548 46.0 71.1 0.0 22 8.0 7.9 12.0703 3.70494 32.0723 6.83 297.8 1.560 47.5 71.0 0.0 18 9.0 8.9 11.9769 3.69770 32.0824 6.68 291.4 1.687 47.0 71.2 0.0 16 10.0 9.9 12.0477 3.70331 32.0753 6.37 277.5 1.836 46.6 70.1 0.0 15 11.0 10.9 11.6694 3.67264 32.1041 5.93 258.7 1.884 48.1 72.3 0.0 17 12.0 12.0 11.3955 3.65718 32.1908 5.47 238.6 1.635 39.9 67.4 0.0 14 13.0 12.9 11.1061 3.63540 32.2294 5.07 221.0 3.868 43.2 64.4 0.0 25 14.0 13.8 10.8582 3.61442 32.2393 4.77 207.8 4.403 41.8 62.6 0.0 27 15.0 15.0 10.6846 3.60140 32.2625 4.49 195.7 2.221 47.6 70.8 0.0 16 16.0 15.9 10.5503 3.59229 32.2901 4.26 185.9 1.647 48.4 73.2 0.0 19 17.0 16.8 10.4340 3.58445 32.3144 4.02 175.1 1.389 50.7 76.6 0.0 20 18.0 17.9 10.2724 3.57277 32.3404 3.87 168.6 1.056 52.5 79.1 0.0 20 19.0 18.9 10.2491 3.57162 32.3492 3.74 163.1 0.830 52.8 80.2 0.0 21 20.0 19.9 10.0946 3.56021 32.3717 3.58 155.9 0.814 53.1 80.8 0.0 28 21.0 20.8 9.9041 3.55115 32.4503 3.42 148.8 0.854 53.9 82.5 0.0 42 22.0 21.8 9.7797 3.54543 32.5039 3.23 140.9 0.686 54.5 84.9 0.0 29 23.0 22.8 9.6640 3.53656 32.5174 3.11 135.4 0.661 54.4 84.1 0.0 21 24.0 23.8 9.5815 3.53067 32.5315 3.06 133.1 0.459 55.0 84.2 0.0 20 25.0 24.8 9.5548 3.52917 32.5398 3.02 131.7 0.320 55.3 84.7 0.0 23 26.0 25.8 9.5365 3.52833 32.5475 2.98 129.9 0.267 55.4 84.6 0.0 28 27.0 26.8 9.4948 3.52619 32.5629 2.93 127.8 0.320 55.4 85.2 0.0 31 28.0 27.8 9.4757 3.52544 32.5722 2.89 125.9 0.331 54.6 83.4 0.0 27 29.0 28.7 9.4435 3.52390 32.5852 2.83 123.1 0.321 55.0 84.9 0.0 26 30.0 29.7 9.3976 3.52167 32.6036 2.79 121.5 0.311 55.0 84.8 0.0 20 31.0 30.7 9.3854 3.52139 32.6114 2.77 120.8 0.198 55.4 85.2 0.0 19 32.0 31.8 9.3765 3.52093 32.6143 2.77 120.5 0.161 55.6 85.5 0.0 25 33.0 32.7 9.3758 3.52114 32.6156 2.76 120.2 0.178 55.5 85.1 0.0 42 34.0 33.7 9.3719 3.52088 32.6171 2.75 119.7 0.180 55.2 84.6 0.0 25 35.0 34.7 9.3675 3.52088 32.6207 2.74 119.4 0.207 54.2 85.1 0.0 24