*2026/08/25 12:01:00.58 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/05 14:52:45.000 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 5.3 3681.8 4 Depth metres 5.2 3619 5 Temperature:Secondary 'deg C (ITS90)' 1.5669 8.131 6 Transmissivity:Green %/metre 96.5 98.8 7 Fluorescence:URU:Wetlabs mg/m^3 0.102 1.141 8 Salinity:T1:C1 PSS-78 32.3639 34.6667 9 Oxygen:Dissolved:SBE mL/L 0.29 6.79 10 Oxygen:Dissolved:SBE umol/kg 12.6 295.8 11 Conductivity:Secondary S/m 3.1264 3.38903 12 Number_of_bin_records n/a 241 241 13 Sample_Number n/a 155 178 14 Oxygen:Dissolved mL/L 0.275 6.702 15 Oxygen:Dissolved umol/kg 11.95682 291.9821 16 Flag:Oxygen:Dissolved n/a 17 Temperature:Draw 'deg C (ITS90)' 3.2 8.8 18 Nitrate_plus_Nitrite umol/L 7.98 46.25 19 Flag:Nitrate_plus_Nitrite n/a 20 Silicate umol/L 7.03 179.42 21 Flag:Silicate n/a 22 Phosphate umol/L 0.886 3.264 23 Flag:Phosphate n/a 24 Salinity:Bottle PSS-78 34.285 34.6632 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 : P16 EVENT NUMBER : 32 LATITUDE : 49 16.97000 N ! (deg min) LONGITUDE : 134 39.99000 W ! (deg min) WATER DEPTH : 3623 ALTIMETER (M) : 12.26 ! custom item $REMARKS Comments from secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0032.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 25 MERGE 3.6 2026/08/20 14:16:05 24 24 CALIB 12.1 2026/08/20 14:36:51 24 24 SORT 3.6 2026/08/20 14:37:07 24 24 REMOVECH 8.2 2026/08/20 14:38:06 24 24 CHGUNITS 3.2 2026/08/20 14:38:13 24 24 CHGUNITS 3.2 2026/08/25 10:20:13 24 24 REORDER 1.3.1 2026/08/25 10:20:47 ? ? HDREDIT2 3.2 2026/08/25 12:01:00 ? ? $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 14:16:05 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\2025-001-0032.cheprelim Secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0032.iosPAR 24 secondary records matched to primary records. Comments from secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0032.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 14:36:51 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 14:38:06 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 12:01:00 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 171: OXY-2: sample over-titrated, precipitate not entirely dissolved during first titration. Sample_Number 169: OXY: sample over-titrated. Sample_Number 167: ALL: Niskin leaking - top cap not seated. Sample_Number 163: OXY: sample over-titrated. Comments from secondary file: C:/Users/BEDARDJ/Desktop/Data_Processing/bottle_data/2025-001/lab_data/2025-001_NUTS.csv ------------------------------------------------------- Sample_Number 174: NUTS: Sample intended as duplicate, however, only one sample processed ---------------------------------------------------------------------------------------------------- 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 5.3 5.2 8.1273 96.5 0.624 32.3652 6.79 295.8 3.38597 241 178 6.702 292.0 0 8.7 9.37 0 7.15 0 0.896 0 -99.0000 0 23 23 10.1 10.0 8.1261 96.5 0.945 32.3639 6.78 295.4 3.38596 241 177 6.695 291.7 0 8.8 9.21 0 7.05 0 0.898 0 -99.0000 0 22 22 25.4 25.2 8.1281 96.5 1.141 32.3647 6.77 294.9 3.38687 241 176 6.689 291.4 0 8.7 9.27 0 7.21 0 0.886 0 -99.0000 0 21 21 50.1 49.6 8.1310 96.5 1.053 32.3640 6.77 294.9 3.38812 241 175 6.690 291.5 6 8.8 7.98 0 7.03 0 0.891 0 -99.0000 0 20 20 75.0 74.3 8.1270 96.6 1.015 32.3641 6.75 294.0 3.38885 241 174 6.685 291.2 0 8.7 8.10 6 7.28 6 0.914 6 -99.0000 0 19 19 99.6 98.7 7.7026 97.9 0.331 32.7499 6.12 266.5 3.38903 241 173 6.078 264.7 0 8.4 13.25 0 13.24 0 1.183 0 -99.0000 0 18 18 126.0 124.9 6.6822 98.4 0.136 33.4058 5.30 230.7 3.36071 241 172 5.261 229.0 0 7.4 21.98 0 27.94 0 1.642 0 -99.0000 0 17 17 150.8 149.4 6.3177 98.4 0.120 33.6209 5.03 218.9 3.34896 241 171 5.006 217.8 26 7.2 24.14 0 33.82 0 1.789 0 -99.0000 0 16 16 175.7 174.1 5.9634 98.4 0.119 33.6976 4.74 206.2 3.32557 241 170 4.716 205.2 0 6.8 25.89 0 39.04 0 1.872 0 -99.0000 0 15 15 200.0 198.2 5.6556 98.4 0.116 33.7271 4.28 186.2 3.30206 241 169 4.266 185.6 2 6.6 28.05 0 45.06 0 2.020 0 -99.0000 0 14 14 250.8 248.5 5.1332 98.3 0.124 33.7722 3.04 132.2 3.26225 241 168 3.059 133.1 0 6.1 33.56 0 59.01 0 2.413 0 -99.0000 0 13 13 300.6 297.9 4.8514 98.4 0.131 33.8410 2.10 91.3 3.24567 241 167 2.113 91.9 36 5.8 38.04 3 70.16 3 2.615 3 -99.0000 0 12 12 401.9 398.1 4.4138 98.6 0.130 33.9432 1.33 57.8 3.22052 241 166 1.329 57.8 0 5.4 41.93 0 85.65 0 2.879 0 -99.0000 0 11 11 600.8 594.9 3.9572 98.7 0.128 34.1519 0.52 22.6 3.20697 241 165 0.519 22.6 0 4.9 44.64 0 110.77 0 3.103 0 -99.0000 0 10 10 801.4 793.1 3.5248 98.6 0.131 34.2855 0.29 12.6 3.18902 241 164 0.275 12.0 0 4.6 46.08 6 128.74 6 3.264 6 34.2850 0 9 9 1000.5 989.6 3.0548 98.6 0.130 34.3668 0.29 12.6 3.16323 241 163 0.290 12.6 2 4.2 45.95 0 155.45 0 3.257 0 34.3659 0 8 8 1251.5 1237.2 2.7195 98.7 0.128 34.4351 0.32 13.9 3.15026 241 162 0.315 13.7 0 3.9 46.25 0 155.43 0 3.239 0 34.4341 6 7 7 1499.4 1481.3 2.3910 98.7 0.130 34.4958 0.49 21.3 3.13698 241 161 0.490 21.3 6 3.9 46.02 0 165.31 0 3.215 0 34.4948 0 6 6 1753.8 1731.6 2.1172 98.7 0.120 34.5502 0.86 37.4 3.12807 241 160 0.857 37.3 0 3.6 45.01 0 172.00 0 3.128 0 34.5491 0 5 5 2002.2 1975.7 1.9494 98.7 0.118 34.5853 1.25 54.3 3.12640 241 159 1.262 54.9 0 3.6 44.12 0 175.21 0 3.058 0 34.5842 0 4 4 2502.3 2466.3 1.7415 98.8 0.109 34.6270 1.85 80.4 3.13145 241 158 1.872 81.4 0 3.3 42.60 0 176.89 0 2.935 0 34.6272 0 3 3 3003.0 2956.3 1.6025 98.8 0.102 34.6520 2.38 103.4 3.14046 241 157 2.409 104.7 0 3.2 41.01 0 176.19 0 2.795 0 34.6518 0 2 2 3499.2 3440.9 1.5669 98.7 0.102 34.6646 2.65 115.2 3.15657 241 156 2.693 117.0 0 3.2 40.48 0 178.15 0 2.752 0 34.6632 6 1 1 3681.8 3619.0 1.5725 98.5 0.111 34.6667 2.69 116.9 3.16374 241 155 2.738 119.0 0 3.2 40.55 0 179.42 0 2.764 0 -99.0000 0