*2026/01/28 11:19:18.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/13 02:37:14.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 16 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 28A2F443 NUMBER OF CHANNELS : 29 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Bottle:Firing_Sequence n/a 1 16 2 Bottle_Number n/a 1 16 3 Pressure decibar 2.44 347.033 4 Depth metres 2.419 343.777 5 Temperature:Primary 'deg C (ITS90)' 9.4636 15.2749 6 Conductivity:Primary S/m 3.311403 3.540734 7 Salinity:T0:C0 PSS-78 28.0524 30.9281 8 Oxygen:Dissolved:SBE mL/L 2.839 7.207 9 Oxygen:Dissolved:SBE umol/kg 123.9 315.4 10 Fluorescence:URU:Wetlabs mg/m^3 0.64E-01 6.979 11 Transmissivity %/metre 28.2 53.7 12 Transmissivity:Green %/metre 35.2 82.9 13 Number_of_bin_records n/a 46 241 14 Sample_Number n/a 454 469 15 Salinity:Bottle PSS-78 29.0506 30.9304 16 Flag:Salinity:Bottle n/a 17 Oxygen:Dissolved mL/L 2.931 6.982 18 Oxygen:Dissolved umol/kg 127.9644 305.5605 19 Flag:Oxygen:Dissolved n/a 20 Temperature:Draw 'deg C (ITS90)' 11 16.3 21 Chlorophyll:Extracted mg/m^3 1.21 6.5 22 Flag:Chlorophyll:Extracted n/a 23 Phaeo-Pigment:Extracted mg/m^3 0.56 7.41 24 Nitrate_plus_Nitrite umol/L 1.53 31.84 25 Flag:Nitrate_plus_Nitrite n/a 26 Silicate umol/L 17.67 61.84 27 Flag:Silicate n/a 28 Phosphate umol/L 0.499 2.747 29 Flag:Phosphate n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 3 I I 0 2 -99 ' ' 3 I I 0 3 -99 ' ' 7 F ' ' 1 4 -99 ' ' 7 F ' ' 1 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 10 F ' ' 5 7 -99 ' ' 9 F R4 4 8 -99 ' ' 7 F ' ' 2 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 8 F ' ' 3 11 -99 ' ' 6 F ' ' 1 12 -99 ' ' 6 F ' ' 1 13 ' ' ' ' 5 I I 0 14 -99 ' ' 5 I I ' ' 15 -99 ' ' ' ' F9.4 R4 ' ' 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' ' ' F8.3 R4 ' ' 18 -99 ' ' 6 F ' ' 1 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' ' ' F6.1 R4 ' ' 21 -99 ' ' ' ' F7.2 R4 ' ' 22 0 ' ' 3 NQ C ' ' 23 -99 ' ' ' ' F7.2 R4 ' ' 24 -99 ' ' ' ' F7.2 R4 ' ' 25 0 ' ' 3 NQ C ' ' 26 -99 ' ' ' ' F7.2 R4 ' ' 27 0 ' ' 3 NQ C ' ' 28 -99 ' ' ' ' F8.3 R4 ' ' 29 0 ' ' 3 NQ C ' ' $END $REMARKS This file converted from Sea-Bird file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\ROS files\2024-020-0155.ros $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 : 12 EVENT NUMBER : 155 LATITUDE : 49 43.59000 N ! (deg min) LONGITUDE : 124 40.84000 W ! (deg min) WATER DEPTH : 345 ALTIMETER (M) : 10.21 ! 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' ' ' 4378 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 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 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SBE_IOS 4.3 2026/01/19 11:14:59 2501 2501 CLEAN 5.3 2026/01/19 13:13:08 2501 2501 ADDSAMP 3.6 2026/01/21 11:32:36 2501 2501 BINAVE 4.2.1 2026/01/21 11:35:04 2501 16 MERGE 3.6 2026/01/26 09:44:37 16 16 CLEAN 5.3 2026/01/26 10:33:00 16 16 CALIB 12.1 2026/01/28 10:07:13 16 16 CALIB 12.1 2026/01/28 10:14:15 16 16 SORT 3.6 2026/01/28 10:44:52 16 16 REMOVECH 8.2 2026/01/28 10:53:46 16 16 CHGUNITS 3.2 2026/01/28 10:55:22 16 16 CHGUNITS 3.2 2026/01/28 10:56:36 16 16 REORDER 1.3.1 2026/01/28 11:04:48 ? ? HDREDIT2 3.2 2026/01/28 11:19:18 ? ? $END $REMARKS -CLEAN functions: 2026/01/19 13:12:59 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 0 data records in pad range. Set event to last 3 characters of file name -The following ADDSAMP parameters were used: Sample Number Lookup File: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\ IOSShell\ADDSAMP.csv Bottle Channel Name: Bottle_Number [n/a] -The following BINAVE parameters were used: Bin channel = Bottle_Number 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. -The following MERGE parameters were used: 2026/01/26 09:44:37 Merge Channel: Bottle_Number Merge Scheme Used: 1: Interweave Records from Both Files Overlap Scheme Used: Keep Primary Primary Channels to Include: ALL Secondary Channels to Include: Sample_Number, Bottle:Position, Salinity:Bottle, Flag:Salinity:Bottle, Oxygen:Dissolved, Flag:Oxygen:Dissolved, Temperature:Draw, Chlorophyll:Extracted, Flag:Chlorophyll:Extracted, Phaeo-Pigment:Extracted, Nitrate_plus_Nitrite, Flag:Nitrate_plus_Nitrite, Silicate, Flag:Silicate, Phosphate, Flag:Phosphate, Ammonium, Flag:Ammonium Primary file : C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\IOSShell\2024- 020-0155.samavg Secondary file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\IOSShell\2024- 020-0155.mrgcln1s Comments from secondary file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\IOSShell\2024-020-0155.mrgcln1s --------------------------------------------------------------------------- -SORT parameters: 2026/01/26 09:40:22 Sorted in ascending order of channel Bottle_Number -CLEAN functions: 2026/01/26 10:32:58 20 Change character data from " " to "0" in channels Flag:* Remove Sea-Bird comments from the header. -CALIB parameters: 2026/01/28 10:07:13 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\2024-020-recal-SIL.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 33 Silicate umol/L 120 0.9040000E+00 0.3000000E-02 0.2500000E+02 Salinity:T0:C0 -CALIB parameters: 2026/01/28 10:14:15 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 -- ----------------------------- --------- --- ----------------------------- 14 Salinity:T0:C0 PSS-78 10 -0.2000000E-03 0.1000000E+01 -SORT parameters: 2026/01/28 10:44:52 Sorted in ascending order of channel Pressure [decibar] -REMOVECH 2026/01/28 10:53:46 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 -CHANGE units: Temperature reference channel: Temperature:Primary Salinity reference channel: Salinity:T0:C0 'Oxygen:Dissolved:SBE' changed from mL/L to umol/kg -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T0:C0 'Oxygen:Dissolved' changed from mL/L to umol/kg -HEADER EDITS: 2026/01/28 11:19:18 Applied edit header: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\2024-020-bot-hdr.txt Channel 1: Bottle:Firing_Sequence [n/a] Name: Bottle_Number ==> Bottle:Firing_Sequence Channel 2: Bottle_Number [n/a] Name: Bottle:Position ==> Bottle_Number 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 ==> F10.5 Channel 11: Transmissivity [%/metre] Name: Transmissivity:1 ==> Transmissivity Channel 12: Transmissivity:Green [%/metre] Name: Transmissivity:2 ==> Transmissivity:Green Channel 10: Fluorescence:URU:Wetlabs [mg/m^3] Name: Fluorescence:URU:Wetlabs:ECO-AFL ==> Fluorescence:URU:Wetlabs Channel 8: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 $END *COMMENTS Comments from secondary file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\IOSShell\2024-020-0155.mrgcln1s --------------------------------------------------------------------------- Comments from secondary file: C:\Users\BEDARDJ\Desktop\Data_Processing\CTD-2024-020\BottleFiles\IOSShell\2024-020-0155.oxy --------------------------------------------------------------------------- Sample_Number 456: OXY: sample over-titrated. Sample_Number 464: OXY: poor agreement between duplicate, difference >0.1 mL/L. Analysis methods: ----------------- 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 precision analysis, see document QF2024-020_OXY*.xlsx. Salinity samples were collected in 200 mL or 250 mL type II 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 within 27-36 days after collection. For details, see document QF 2024-020 SAL_*.xls. 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 Institute 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 QF2024-020_NUTS*.xlsx. Chlorophyll samples were filtered onto 25mm GF/F filters after collection, and immediately frozen in liquid nitrogen and stored in a -80C freezer until analysis. All samples were returned to the Institute of Ocean Sciences and analyzed 1-6 months after collection on a Turner Trilogy7200-000 fluorometer, using methods described in Holm-Hansen et al. (1965). Fluorescence readings taken before and after sample acidification were used to calculate chlorophyll and phaeopigment concentrations. For further details on methodology, see document QF2024-020_CHL_*.xlsx Methodology sheet. Flags and comments apply to chlorophyll values only. No flags or comments are assigned for Phaeo-Pigment values The Ammonium method used at IOS is a modification of the fluorometric technique of Holmes et al., 1999. The method uses a single working reagent and minimizes contamination, can be applied to a large range of ammonium concentrations, and allows for samples to be processed quickly in the field. Samples are collected during the day into vials cleaned with working reagent, and stored in the Cold Room on the Tully. Working standards that bracket the expected sample concentrations are made up daily from seawater low in organic matter, collected on 2023-066, station P23, at 2005m. Samples and standards are spiked with working reagent at the same time, and allowed to incubate for 8-18 hours to maximize fluorescence signal and stability. The fluorescence is then read using a Turner Trilogy fluorometer in raw fluorescence mode. A linear calibration curve is generated from the standards, and the calibration equation then applied to sample fluorescence to determine sample concentration. For further details on methodology, see document QF 2024-020_NH4_*.xlsx All the CTD variables are averaged over the same pressures in order to have one line of data per sample. 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., Aminot, A., Kerouel, 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 and Fluorescence are nominal and unedited except that some records were removed in editing temperature and salinity. 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. 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 ! ---------------------- -------- ---- ------ ------------ Silicate umol/L 120 -99 (Salinity:T0:C0) (0.904 0.3E-02 25) 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- -13- -14- ---15--- 16 ---17-- --18- 19 --20- --21-- 22 --23-- --24-- 25 --26-- 27 ---28-- 29 !Bo Bo Pressu Depth Temperat Conductiv Salinity Oxygen Oxyge Fluores Trans Trans Numb Samp Salinity Fl Oxygen: Oxyge Fl Tempe Chloro Fl Phaeo- Nitrat Fl Silica Fl Phospha Fl !tt tt re ure: ity: :T0:C0 : n: cence: missi missi er_o le_ :Bottle ag Dissolv n: ag ratur phyll: ag Pigmen e_ ag te ag te ag !~u ~u Primary Primary Dissol Disso URU: vity vity: ~bin Numb ~o ed Disso ~o e: Extrac ~a t: plus_ ~t ~i ~p !en mb ved: lved: Wetlabs Green _rec er tt lved lv Draw ted ct Extrac Nitrit ri ca ha !ce er SBE SBE ords le ed ed ted e te te te !-- -- ------ ------ -------- --------- -------- ------ ----- ------- ----- ----- ---- ---- -------- -- ------- ----- -- ----- ------ -- ------ ------ -- ------ -- ------- -- *END OF HEADER 16 16 2.4 2.4 15.2749 3.54073 28.0524 7.21 315.4 4.851 32.9 43.6 241 469 -99.0000 0 -99.000 -99.0 0 -99.0 5.03 0 0.80 1.53 0 17.67 0 0.499 0 15 15 4.9 4.9 14.6110 3.50542 28.2164 6.92 303.0 6.894 28.5 35.8 241 468 -99.0000 0 6.982 305.6 0 16.3 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 14 14 4.9 4.9 14.5688 3.50316 28.2269 6.85 299.8 6.979 28.2 35.2 47 467 -99.0000 0 -99.000 -99.0 0 -99.0 3.65 0 7.41 3.90 0 23.91 0 0.700 0 13 13 9.4 9.4 12.1651 3.40421 29.1207 5.12 223.9 6.208 37.5 52.7 241 466 -99.0000 0 5.063 221.3 0 13.6 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 12 12 9.4 9.4 12.1717 3.40434 29.1168 5.14 224.8 5.375 40.0 56.6 48 465 29.0506 0 -99.000 -99.0 0 -99.0 6.50 6 1.58 17.41 0 40.87 0 1.747 0 11 11 19.9 19.8 10.8725 3.35382 29.6561 3.59 156.7 1.133 52.8 81.1 241 464 -99.0000 0 3.561 155.6 46 12.3 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 10 10 19.9 19.8 10.8284 3.35109 29.6649 3.53 154.0 1.055 53.1 80.8 49 463 -99.0000 0 -99.000 -99.0 0 -99.0 1.21 0 0.56 26.77 0 54.19 0 2.404 0 8 8 49.9 49.5 9.7781 3.31140 30.1220 2.84 123.9 0.136 53.7 82.9 47 461 -99.0000 0 -99.000 -99.0 0 -99.0 -99.00 0 -99.00 31.84 0 58.70 0 2.747 0 9 9 49.9 49.5 9.7784 3.31141 30.1219 2.84 124.0 0.123 53.5 82.4 241 462 -99.0000 0 2.931 128.0 0 11.3 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 6 6 149.5 148.1 9.7391 3.38255 30.8321 2.92 127.5 0.069 52.1 80.3 47 459 -99.0000 0 -99.000 -99.0 0 -99.0 -99.00 0 -99.00 30.22 6 53.40 6 2.595 6 7 7 149.5 148.1 9.7394 3.38259 30.8321 2.92 127.5 0.064 52.2 80.3 241 460 -99.0000 0 2.981 130.1 0 11.3 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 5 5 249.6 247.3 9.4916 3.37248 30.9006 3.00 130.9 0.069 51.7 79.8 241 458 -99.0000 0 3.078 134.3 0 11.1 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 4 4 249.6 247.3 9.4907 3.37241 30.9006 3.01 131.3 0.065 52.1 79.1 46 457 -99.0000 0 -99.000 -99.0 0 -99.0 -99.00 0 -99.00 29.73 0 59.30 0 2.543 0 2 2 299.5 296.8 9.4646 3.37358 30.9142 3.00 130.8 0.069 50.7 77.2 48 455 -99.0000 0 -99.000 -99.0 0 -99.0 -99.00 0 -99.00 29.81 0 60.09 0 2.649 0 3 3 299.5 296.8 9.4646 3.37357 30.9141 3.00 130.8 0.064 50.7 77.6 241 456 -99.0000 0 3.083 134.5 2 11.0 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 1 1 347.0 343.8 9.4636 3.37680 30.9281 2.96 129.3 0.069 47.8 72.8 241 454 30.9304 6 3.033 132.3 0 11.0 -99.00 0 -99.00 30.20 0 61.84 0 2.694 0