*2026/08/25 12:01:01.91 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/09 05:28:52.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 24 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : A48A105C NUMBER OF CHANNELS : 25 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- --------------------------- --------------- -------------- -------------- 1 Bottle_Number n/a 1 24 2 Bottle:Firing_Sequence n/a 1 24 3 Pressure decibar 5.2 4319.1 4 Depth metres 5.1 4239.1 5 Temperature:Secondary 'deg C (ITS90)' 1.5046 7.1303 6 Transmissivity:Green %/metre 94.8 98.8 7 Fluorescence:URU:Wetlabs mg/m^3 0.96E-01 1.839 8 Salinity:T1:C1 PSS-78 32.4194 34.6814 9 Oxygen:Dissolved:SBE mL/L 0.36 6.89 10 Oxygen:Dissolved:SBE umol/kg 15.6 300.1 11 Conductivity:Secondary S/m 3.12676 3.30983 12 Number_of_bin_records n/a 241 241 13 Sample_Number n/a 321 344 14 Oxygen:Dissolved mL/L 0.359 6.853 15 Oxygen:Dissolved umol/kg 15.60857 298.522 16 Flag:Oxygen:Dissolved n/a 17 Temperature:Draw 'deg C (ITS90)' 3 8.1 18 Nitrate_plus_Nitrite umol/L 11.22 46.76 19 Flag:Nitrate_plus_Nitrite n/a 20 Silicate umol/L 12.91 175.52 21 Flag:Silicate n/a 22 Phosphate umol/L 1.085 3.271 23 Flag:Phosphate n/a 24 Salinity:Bottle PSS-78 34.2903 34.6786 25 Flag:Salinity:Bottle 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 ' ' 6 F ' ' 1 7 -99 ' ' 8 F ' ' 3 8 -99 ' ' 9 F ' ' 4 9 -99 ' ' 7 F ' ' 2 10 -99 ' ' 6 F ' ' 1 11 -99 ' ' 10 F ' ' 5 12 -99 ' ' 5 I I 0 13 -99 ' ' 5 I I 0 14 -99 ' ' 8 F R4 3 15 -99 ' ' 6 F ' ' 1 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 6 F R4 1 18 -99 ' ' 7 F R4 2 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' 7 F R4 2 21 0 ' ' 3 NQ C ' ' 22 -99 ' ' 8 F R4 3 23 0 ' ' 3 NQ C ' ' 24 -99 ' ' 9 F R4 4 25 0 ' ' 3 NQ C ' ' $END $REMARKS Flag channels were initialized with zeros. Non-zero values 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 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 : 2025-001 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : Sir Wilfrid Laurier *LOCATION GEOGRAPHIC AREA : North-East Pacific & Strait of Georgia STATION : P26 EVENT NUMBER : 56 LATITUDE : 49 59.88000 N ! (deg min) LONGITUDE : 145 0.30000 W ! (deg min) WATER DEPTH : 4215 ALTIMETER (M) : 3.69 ! custom item $REMARKS Comments from secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0056.iosPAR ---------------------------------------------------------- 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 : 0585 LOCATION : Mid-ship ! custom item $TABLE: SENSORS ! Name Abs Depth Serial No ! ----------------------------------- -------------- ---------- Temperature ' ' 2449 Conductivity ' ' 1764 'Pressure:Digiquartz with TC' ' ' 0585 Temperature:2 ' ' 4484 Conductivity:2 ' ' 2128 'Oxygen:SBE 43' ' ' 1176 Altimeter ' ' 73171 PAR/Irradiance:Biospherical/Licor ' ' 70614 '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 7.26.7.107 $END *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- DATCNV 1.0 2026/08/18 14:19:33 5784 5784 OXYGEN 1.0 2026/08/18 14:19:33 5784 5784 AV1 1.0 2026/08/18 14:19:33 5784 24 ADDSAMP 1.0 2026/08/18 14:19:39 24 24 RENAME 1.0 2026/08/18 14:19:39 24 24 MERGE 1.0 2026/08/18 14:19:39 24 24 MERGE 3.6 2026/08/20 14:16:07 24 24 CALIB 12.1 2026/08/20 14:36:52 24 24 SORT 3.6 2026/08/20 14:37:07 24 24 REMOVECH 8.2 2026/08/20 14:38:07 24 24 CHGUNITS 3.2 2026/08/20 14:38:13 24 24 CHGUNITS 3.2 2026/08/25 10:20:14 24 24 REORDER 1.3.1 2026/08/25 10:20:48 ? ? HDREDIT2 3.2 2026/08/25 12:01:01 ? ? $END $REMARKS -DATCNV: 2026/08/18 14:19:33 Converted raw CTD cast (.hex) to .ros format. Output contained 5784 records with instrument channels. -CONVERT OXYGEN: 2026/08/18 14:19:33 Converted Oxygen data from Voltage to ml/L and umol/Kg Output contained 5784 records of Oxygen data -AV1: 2026/08/18 14:19:33 Averaged CTD data around each bottle position. Channel 'Number_of_bin_records' was added to file. Records reduced from 5784 to 24 (one row per bottle). -ADDSAMP: 2026/08/18 14:19:39 Merge Sample numbers assigned from Compiled Rosette Sheets into AV1 Niskin# column renamed to bottle position for consistency with AV1. 24 AV1 records successfully annotated with Sample_Number. -RENAME: 2026/08/18 14:19:39 Standardized and reordered channel names for CHE output. 17 Columns renamed and reordered successfully -MERGE: 2026/08/18 14:19:39 Merged Lab chemistry data into AV1 output. Merge key: Sample_Number Merge Scheme Used: Add Secondary to Matching Primary Primary Channels to Include: ALL Secondary Channels to Include: Station Salinity:Bottle Flag:Salinity:Bottle Station_OXY Oxygen:Dissolved Flag:Oxygen:Dissolved Temperature:Draw Station_NUTS Depth_NUTS Nitrate_plus_Nitrite Flag:Nitrate_plus_Nitrite Silicate Flag:Silicate Phosphate Flag:Phosphate 24 secondary lab records matched to primary records. -The following MERGE parameters were used: 2026/08/20 14:16:07 Merge Channel: Pressure Merge Scheme Used: 4: Add Secondary to Matching Primary Overlap Scheme Used: Keep Primary Primary Channels to Include: ALL Secondary Channels to Include: PAR Primary file : E:\Telework\2025-001\Processing\HYDRO\2025-001-0056.cheprelim Secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0056.iosPAR 24 secondary records matched to primary records. Comments from secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0056.iosPAR ---------------------------------------------------------- -CLEAN functions: 2026/08/20 14:10:37 20 Reduce header to sections: FIL HIS COM Remarks removed from kept sections. Reset #RECS, MIN & MAX values in header. Set event to last 4 characters of file name Remove Sea-Bird comments from the header. -CALIB parameters: 2026/08/20 14:36:52 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2025-001\Processing\doc\2025-001-rcal1.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 10 Salinity:T0:C0 PSS-78 10 -0.4500000E-02 0.1000000E+01 11 Salinity:T1:C1 PSS-78 10 0.2300000E-02 0.1000000E+01 12 Oxygen:Dissolved:SBE mL/L 10 0.1380000E-01 0.1019900E+01 -SORT parameters: 2026/08/20 14:37:07 Sorted in ascending order of channel Pressure -REMOVECH 2026/08/20 14:38:07 The following CHANNEL(S) were removed: Temperature:Primary [deg C (ITS90)] Transmissivity [%/metre] Salinity:T0:C0 [PSS-78] Conductivity:Primary [S/m] PAR [umol/m^2/sec] -CHANGE units: Temperature reference channel: Temperature:Secondary Salinity reference channel: Salinity:T1:C1 'Oxygen:Dissolved:SBE [mL/L]' changed from mL/L to umol/kg -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T1:C1 'Oxygen:Dissolved' changed from mL/L to umol/kg -HEADER EDITS: 2026/08/25 12:01:01 Applied edit header: E:\Telework\2025-001\Processing\doc\HYDRO\2025-001-bot-hdr.txt Channel 1: Bottle:Firing_Sequence [n/a] Name: Bottle_Number ==> Bottle:Firing_Sequence Channel 17: Temperature:Draw [deg C (ITS90)] Format: F7.1 ==> F6.1 $END *COMMENTS Comments from secondary file: C:/Users/BEDARDJ/Desktop/Data_Processing/bottle_data/2025-001/lab_data/2025-001_OXY.csv ------------------------------------------------------- Sample_Number 344: ALL: Niskin failed integrity check - spigot open. Sample_Number 343: ALL: Niskin leaking - top cap not seated. Sample_Number 339: ALL: Niskin failed integrity check - spigot open. Sample_Number 328: OXY: sample over-titrated. Sample_Number 326: ALL: Niskin leaking - top cap not seated. Sample_Number 325: OXY: sample over-titrated. ---------------------------------------------------------------------------------------------------- Analysis methods: ----------------- Chlorophyll samples were filtered onto 25mm GF/F filters and immediately frozen and stored in a -80C freezer until analysis. All samples were returned to the Institute of Ocean Sciences and analyzed 3-6 days after the cruise on a Turner Trilogy 7200-000 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 QF2025-001_CHL*.xlsx Methodology sheet. NOTE: Flags and comments apply to chlorophyll values only. No flags or comments are assigned for Phaeo-Pigment values. 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 QF2025-001_OXY*.xls. 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 5 - 19 days after collection. For details including a duplicate analysis, see document QF2025-001_SAL*.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 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 QF2025-001nuts*.xlsx. 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. * For PDF versions of these papers see folder \\Cruise_Data\DOCUMENTS\Analysis Reference Papers --------------------------------------------------------------------------------- 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 PAR channel was removed where the log indicates it was not mounted. 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. Transmissometer #1185DG flooded during cast #28 and there was no replacement available, so only Transmissometer:Green data are available for events #29 to #108. NOTE: While the SBE fluorescence data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples. It is recommended that users check extracted chlorophyll values where available. This was the first use of this CTD since it was serviced at the factory. Recalibration of salinity and dissolved oxygen was based on sampling during the offshore section of the cruise. For details on the processing see the report: 2025-001_Processing_Report.doc. *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- -------- ---- ------ ------------ Salinity:T0:C0 PSS-78 10 -99 () (-0.45E-02 1) Salinity:T1:C1 PSS-78 10 -99 () (0.23E-02 1) Oxygen:Dissolved:SBE mL/L 10 -99 () (0.138E-01 1.0199) $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 !Bo Bo Pressu Depth Temperat Trans Fluores Salinity Oxygen Oxyge Conductiv Numb Samp Oxygen: Oxyge Fl Tempe Nitrat Fl Silica Fl Phospha Fl Salinity Fl !tt tt re ure: missi cence: :T1:C1 : n: ity: er_o le_ Dissolv n: ag ratur e_ ag te ag te ag :Bottle ag !~u ~u Secondar vity: URU: Dissol Disso Secondary ~bin Numb ed Disso ~o e: plus_ ~t ~i ~p ~o !mb en y Green Wetlabs ved: lved: _rec er lved lv Draw Nitrit ri ca ha tt !er ce SBE SBE ords ed e te te te le !-- -- ------ ------ -------- ----- ------- -------- ------ ----- --------- ---- ---- ------- ----- -- ----- ------ -- ------ -- ------- -- -------- -- *END OF HEADER 24 24 5.2 5.1 7.0999 94.9 1.673 32.4198 6.89 300.1 3.30194 241 344 6.851 298.4 3 8.0 11.31 3 13.30 3 1.095 3 -99.0000 0 23 23 10.8 10.7 7.0986 94.9 1.736 32.4194 6.88 299.7 3.30203 241 343 6.849 298.3 3 8.1 11.30 3 12.99 3 1.100 3 -99.0000 0 22 22 25.7 25.5 7.1020 94.8 1.839 32.4201 6.87 299.2 3.30304 241 342 6.852 298.5 0 8.0 11.22 0 12.91 0 1.095 0 -99.0000 0 21 21 51.0 50.5 7.1061 94.8 1.623 32.4203 6.87 299.2 3.30451 241 341 6.853 298.5 0 8.1 11.37 0 12.96 0 1.087 0 -99.0000 0 20 20 74.8 74.2 7.1078 94.8 1.798 32.4199 6.86 298.8 3.30565 241 340 6.848 298.3 0 8.0 11.40 6 13.23 6 1.085 6 -99.0000 0 19 19 100.5 99.6 7.1303 95.0 1.528 32.4321 6.83 297.5 3.30983 241 339 6.829 297.5 36 8.1 11.25 3 12.99 3 1.096 3 -99.0000 0 18 18 124.8 123.7 6.0019 98.1 0.162 33.2275 5.46 237.6 3.28485 241 338 5.475 238.3 0 7.3 22.36 0 30.08 0 1.702 0 -99.0000 0 17 17 149.9 148.6 5.6767 98.3 0.135 33.6117 4.77 207.5 3.29152 241 337 4.805 209.1 0 7.0 26.54 0 38.79 0 1.914 0 -99.0000 0 16 16 175.9 174.3 5.2629 98.3 0.125 33.6995 4.05 176.2 3.26399 241 336 4.085 177.7 0 6.6 30.23 0 48.55 0 2.157 0 -99.0000 0 15 15 202.9 201.0 4.9553 98.2 0.126 33.7496 3.19 138.8 3.24254 241 335 3.203 139.4 0 6.4 34.30 0 58.76 0 2.339 0 -99.0000 0 14 14 249.6 247.3 4.7633 98.2 0.128 33.8055 2.20 95.7 3.23262 241 334 2.194 95.4 0 6.3 38.68 0 68.75 0 2.629 0 -99.0000 0 13 13 301.4 298.6 4.6010 98.4 0.131 33.8709 1.48 64.4 3.22631 241 333 1.484 64.6 0 6.1 41.40 0 77.67 0 2.904 0 -99.0000 0 12 12 400.8 397.0 4.3423 98.5 0.125 33.9940 0.86 37.4 3.21855 241 332 0.859 37.4 0 5.9 44.27 0 91.39 0 3.100 0 -99.0000 0 11 11 600.0 594.0 3.7977 98.6 0.128 34.1699 0.47 20.4 3.19446 241 331 0.471 20.5 0 5.6 45.49 0 115.33 0 3.203 0 -99.0000 0 10 10 800.1 791.7 3.3507 98.6 0.127 34.2890 0.37 16.1 3.17402 241 330 0.365 15.9 0 5.2 45.97 0 132.81 0 3.254 0 34.2903 0 9 9 1000.4 989.4 3.0382 98.6 0.130 34.3567 0.36 15.6 3.16094 241 329 0.359 15.6 6 4.8 46.64 0 143.61 0 3.271 0 34.3569 0 8 8 1249.9 1235.5 2.6357 98.6 0.124 34.4384 0.40 17.4 3.14316 241 328 0.405 17.6 2 4.3 46.76 0 157.28 0 3.253 0 34.4395 0 7 7 1503.2 1485.0 2.3379 98.7 0.121 34.4978 0.62 26.9 3.13268 241 327 0.615 26.7 0 4.0 46.32 0 165.55 0 3.215 0 34.4984 6 6 6 2001.7 1975.1 1.9608 98.7 0.112 34.5778 1.21 52.6 3.12676 241 326 1.217 52.9 36 3.6 44.76 3 173.35 3 3.086 3 34.5773 3 5 5 2500.1 2464.0 1.7262 98.8 0.106 34.6245 1.87 81.3 3.12984 241 325 1.888 82.1 2 3.4 42.99 0 175.52 0 2.965 0 34.6227 0 4 4 2999.6 2952.9 1.5833 98.8 0.101 34.6528 2.45 106.5 3.13874 241 324 2.478 107.7 0 3.3 40.85 0 173.46 0 2.831 0 34.6535 0 3 3 3501.3 3442.8 1.5144 98.8 0.100 34.6695 2.86 124.3 3.15249 241 323 2.901 126.1 0 3.1 39.65 0 171.25 0 2.729 0 34.6694 0 2 2 4002.3 3930.9 1.5046 98.8 0.096 34.6782 3.08 133.8 3.17001 241 322 3.137 136.3 6 3.0 39.25 6 170.90 6 2.670 6 34.6786 6 1 1 4319.1 4239.1 1.5220 98.5 0.099 34.6814 3.14 136.4 3.18258 241 321 3.197 138.9 0 3.0 39.09 0 173.02 0 2.668 0 -99.0000 0