*2026/03/18 13:18:39.97 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/19 19:52:05.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 9 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : EE689D0C NUMBER OF CHANNELS : 13 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- --------------------------- --------------- -------------- -------------- 1 Pressure decibar 2 10 2 Depth metres 2.036 9.834 3 Temperature:Primary 'deg C (ITS90)' 13.6496 13.6802 4 Conductivity:Primary S/m 3.869618 3.907228 5 Salinity:T0:C0 PSS-78 32.2853 32.6353 6 Oxygen:Dissolved:SBE mL/L 4.445 6.189 7 Oxygen:Dissolved:SBE umol/kg 193.8051 269.8789 8 Fluorescence:URU:Wetlabs mg/m^3 0.374 0.462 9 Fluorescence:URU:Seapoint mg/m^3 0.466 0.677 10 Transmissivity %/metre 32.6 50.7 11 Transmissivity:Green %/metre 44 80.1 12 PAR uE/m^2/sec 74.044 915.201 13 Number_of_bin_records n/a 19 37 $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 ' ' 8 F ' ' 3 10 -99 ' ' 6 F ' ' 1 11 -99 ' ' 6 F ' ' 1 12 -99 ' ' 7 F ' ' 1 13 ' ' ' ' 5 I I 0 $END $REMARKS This file converted from Sea-Bird file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBird_Steps\5_DERIVE\2024-008-0050.cnv $END *ADMINISTRATION MISSION : 2024-008 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : P26 EVENT NUMBER : 50 LATITUDE : 50 0.03000 N ! (deg min) LONGITUDE : 145 0.01000 W ! (deg min) WATER DEPTH : 4211 *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 2026/02/11 11:11:30 5328 5328 CLEAN 5.3 2026/02/11 13:47:01 5328 5328 SHIFTDAT 3.5.1 2026/02/12 09:07:09 5328 5328 DELETE 6.3 2026/02/12 09:16:18 5328 429 CTDEDIT 5.5.1 2026/02/17 09:47:43 429 263 CALIB 12.1 2026/03/18 10:34:34 263 263 CALIB 12.1 2026/03/18 11:36:54 263 263 FILTERS 4.3 2026/03/18 11:39:44 263 263 BINAVE 4.2.1 2026/03/18 11:41:36 263 9 REMOVECH 8.2 2026/03/18 12:57:42 9 9 REMOVECH 8.2 2026/03/18 12:59:52 9 9 CHGUNITS 3.2 2026/03/18 13:00:53 9 9 REORDER 1.3.1 2026/03/18 13:02:32 ? ? HDREDIT2 3.2 2026/03/18 13:18:39 ? ? $END $REMARKS -CLEAN functions: 2026/02/11 13:45:26 20 Reset #RECS, MIN & MAX values in header. Insert Pad Values in Channel: Fluorescence:URU:Wetlabs:ECO-AFL [mg/m^3] where channel Fluorescence:URU:Wetlabs:ECO-AFL [mg/m^3] is in the range -10 t 93 data records in pad range. 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 0.77 dbars Sample interval (from FILE section of header) = 0.042 seconds. -CTDEDIT v5.5.1 2026/02/17 09:47:43 166 records were deleted in this editing session. No data values were changed. -CALIB parameters: 2026/03/18 10:34:34 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Salinity is computed Calibration file = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\2024-008-recal-CTD.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 19 Oxygen:Dissolved:SBE mL/L 10 -0.1910000E-01 0.1000000E+01 Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 17 Salinity:T0:C0 PSS-78 10 -0.3000000E-03 0.1000000E+01 -CALIB parameters: 2026/03/18 11:36:54 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Salinity is computed Calibration file = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\2024-008-recal-CTD2.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 19 Oxygen:Dissolved:SBE mL/L 10 -0.2820000E-01 0.1000000E+01 Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 17 Salinity:T0:C0 PSS-78 130 Pressure Temperature:Primary Conductivity:Primary -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 2026/03/18 12:57:42 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] Salinity:T1:C1 [PSS-78] Flag -REMOVECH 2026/03/18 12:59:52 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: 2026/03/18 13:18:39 Applied edit header: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\2024-008-hdr-CTD.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 10: Transmissivity [%/metre] Name: Transmissivity:1 ==> Transmissivity Channel 11: 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 12: 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\2024-008\2024-008-0050.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 19 2024 19:52:05 NMEA Latitude = 50 00.03 N NMEA Longitude = 145 00.01 W NMEA UTC (Time) = Sep 19 2024 19:50:44 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: 2024-008 Station: P26 Depth: 4211 PAR cast System UTC = Sep 19 2024 19:52:05 # nquan = 21 # nvalues = 5328 # 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, 5328 # span 1 = 1.002, 10.766 # span 2 = 0.994, 10.673 # span 3 = 13.6407, 13.7247 # span 4 = 13.6413, 13.7005 # span 5 = 3.819932, 3.930063 # span 6 = 3.820736, 3.909176 # span 7 = 4.4422, 91.4632 # span 8 = 2.0671, 2.8059 # span 9 = 0.00, 100.00 # span 10 = 0, 1 # span 11 = -0.702, 1.078 # span 12 = -0.5280, 59.4720 # span 13 = -0.0487, 96.4693 # span 14 = 6.7686e+01, 9.6343e+02 # span 15 = 0.0000e+00, 1.0623e+00 # span 16 = 31.8256, 32.8181 # span 17 = 31.8325, 32.6414 # span 18 = 4.4841, 6.8418 # span 19 = -0.585, 1.025 # span 20 = 0.0000e+00, 0.0000e+00 # interval = seconds: 0.0416667 # start_time = Sep 19 2024 19:52:05 [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 = Feb 11 2026 08:59:57, 7.26.7.129 [datcnv_vars = 16] # datcnv_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBird_ Steps\Raw CTD data\2024-008-0050.hex C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\ SeaBird_Steps\2024-008start.xmlcon # datcnv_skipover = 0 # datcnv_ox_hysteresis_correction = yes # wildedit_date = Feb 11 2026 09:06:31, 7.26.7.129 # wildedit_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBir d_Steps\1_DATACNV\2024-008-0050.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 = Feb 11 2026 10:40:55, 7.26.7.129 # alignctd_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBir d_Steps\2_WILDEDIT\2024-008-0050.cnv # alignctd_adv = sbeox0V 2.500 # celltm_date = Feb 11 2026 10:43:18, 7.26.7.129 # celltm_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBird_ Steps\3_ALIGNCTD\2024-008-0050.cnv # celltm_alpha = 0.0245, 0.0245 # celltm_tau = 9.5000, 9.5000 # celltm_temp_sensor_use_for_cond = primary, secondary # Derive_date = Feb 11 2026 10:45:34, 7.26.7.129 [derive_vars = 4] # Derive_in = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBird_ Steps\4_CELLTM\2024-008-0050.cnv C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-008\CTD\SeaBird_ Steps\2024-008start.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 values where descent rates dropped below 0.2 m/s CTD Data Processing Notes: -------------------------- Conductivity, Transmissivity, Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. The following channels were removed: - PAR: Cast 33 and 53 NOTE: While the SBE 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: <0.05mL/L for pressure <400db <0.03mL/L for pressure >400db For details on the processing see the report: 2024-008_Processing_Report.doc. --------------------------------------------------------------------------------- *CALIBRATION $TABLE: CALCULATED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------- -------- ---- ------ ------------ Salinity:T0:C0 PSS-78 10 -99 () (-0.3E-03 1) Salinity:T0:C0 PSS-78 130 -99 (Pressure Temperature:Primary Conductivity:Primary) () $END $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ------ ---- ------ ------------ Oxygen:Dissolved:SBE mL/L 10 -99 () (-0.191E-01 1) Oxygen:Dissolved:SBE mL/L 10 -99 () (-0.282E-01 1) $END !--1--- --2--- ---3---- ----4---- ---5---- --6--- --7-- ---8--- ---9--- --10- --11- --12-- -13- !Pressu Depth Temperat Conductiv Salinity Oxygen Oxyge Fluores Fluores Trans Trans PAR Numb !re ure: ity: :T0:C0 : n: cence: cence: missi missi er_o ! Primary Primary Dissol Disso URU: URU: vity vity: ~bin ! ved: lved: Wetlabs Seapoin Green _rec ! SBE SBE t ords !------ ------ -------- --------- -------- ------ ----- ------- ------- ----- ----- ------ ---- *END OF HEADER 2.0 2.0 13.6526 3.90723 32.6353 5.44 237.1 0.400 0.677 32.6 44.0 915.2 29 3.0 3.1 13.6645 3.88972 32.4618 4.45 193.8 0.388 0.571 50.4 79.4 242.6 19 4.0 4.0 13.6669 3.88857 32.4488 4.48 195.4 0.382 0.545 50.6 79.8 187.4 27 5.0 4.9 13.6802 3.88731 32.4254 5.05 220.1 0.374 0.545 50.7 80.1 166.6 32 6.0 5.9 13.6788 3.88593 32.4134 6.08 265.0 0.393 0.596 50.7 80.1 138.6 26 7.0 6.9 13.6507 3.87020 32.2905 6.19 269.9 0.407 0.537 50.7 79.9 118.1 19 8.0 8.0 13.6498 3.86962 32.2855 6.12 267.0 0.435 0.487 50.7 80.1 100.3 30 9.0 8.9 13.6499 3.86965 32.2853 6.11 266.4 0.462 0.485 50.7 79.9 87.2 37 10.0 9.8 13.6496 3.86967 32.2854 6.10 266.0 0.449 0.466 50.7 80.1 74.0 33