*2026/08/25 12:01:02.24 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/12 05:47:44.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 10 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : A48A105C NUMBER OF CHANNELS : 27 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Bottle_Number n/a 1 10 2 Bottle:Firing_Sequence n/a 1 10 3 Pressure decibar 5.2 186.3 4 Depth metres 5.2 184.6 5 Temperature:Secondary 'deg C (ITS90)' 6.8495 8.3264 6 Transmissivity:Green %/metre 92.4 97.7 7 Fluorescence:URU:Wetlabs mg/m^3 0.136 0.719 8 Salinity:T1:C1 PSS-78 31.8736 33.8115 9 Oxygen:Dissolved:SBE mL/L 2.28 6.69 10 Oxygen:Dissolved:SBE umol/kg 99.2 291.5 11 PAR uE/m^2/sec 0 0.57E-01 12 Conductivity:Secondary S/m 3.34514 3.43267 13 Number_of_bin_records n/a 241 241 14 Sample_Number n/a 376 385 15 Chlorophyll:Extracted mg/m^3 0.4 0.43 16 Flag:Chlorophyll:Extracted n/a 17 Phaeo-Pigment:Extracted mg/m^3 0.11 0.13 18 Oxygen:Dissolved mL/L 2.249 6.631 19 Oxygen:Dissolved umol/kg 97.86117 289.0144 20 Flag:Oxygen:Dissolved n/a 21 Temperature:Draw 'deg C (ITS90)' 7.9 9.2 22 Nitrate_plus_Nitrite umol/L 9.42 34.6 23 Flag:Nitrate_plus_Nitrite n/a 24 Silicate umol/L 13.34 51.03 25 Flag:Silicate n/a 26 Phosphate umol/L 0.991 2.42 27 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 ' ' 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 ' ' 7 F ' ' 1 12 -99 ' ' 10 F ' ' 5 13 -99 ' ' 5 I I 0 14 -99 ' ' 5 I I 0 15 -99 ' ' 7 F R4 2 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 -99 ' ' 8 F R4 3 19 -99 ' ' 6 F ' ' 1 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 6 F R4 1 22 -99 ' ' 7 F R4 2 23 0 ' ' 3 NQ C ' ' 24 -99 ' ' 7 F R4 2 25 0 ' ' 3 NQ C ' ' 26 -99 ' ' 8 F R4 3 27 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 : CS09 EVENT NUMBER : 74 LATITUDE : 51 12.46000 N ! (deg min) LONGITUDE : 128 27.99000 W ! (deg min) WATER DEPTH : 196 ALTIMETER (M) : 9.04 ! custom item $REMARKS Comments from secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0074.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 2410 2410 OXYGEN 1.0 2026/08/18 14:19:33 2410 2410 AV1 1.0 2026/08/18 14:19:33 2410 10 ADDSAMP 1.0 2026/08/18 14:19:39 10 10 RENAME 1.0 2026/08/18 14:19:39 10 10 MERGE 1.0 2026/08/18 14:19:39 10 10 MERGE 3.6 2026/08/20 14:16:07 10 10 CALIB 12.1 2026/08/20 14:36:52 10 10 SORT 3.6 2026/08/20 14:37:07 10 10 REMOVECH 8.2 2026/08/20 14:38:07 10 10 CHGUNITS 3.2 2026/08/20 14:38:13 10 10 CHGUNITS 3.2 2026/08/25 10:20:14 10 10 REORDER 1.3.1 2026/08/25 10:20:48 ? ? HDREDIT2 3.2 2026/08/25 12:01:02 ? ? $END $REMARKS -DATCNV: 2026/08/18 14:19:33 Converted raw CTD cast (.hex) to .ros format. Output contained 2410 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 2410 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 2410 to 10 (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. 10 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 Chlorophyll:Extracted Flag:Chlorophyll:Extracted Phaeo-Pigment:Extracted 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 10 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\2025-001-0074.cheprelim Secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0074.iosPAR 10 secondary records matched to primary records. Comments from secondary file: E:\Telework\2025-001\Processing\HYDRO\2025-001-0074.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] -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 12:01:02 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 21: Temperature:Draw [deg C (ITS90)] Format: F7.1 ==> F6.1 Channel 11: PAR [uE/m^2/sec] Units: umol/m^2/sec ==> uE/m^2/sec Format: F11.3 ==> F7.1 $END *COMMENTS ---------------------------------------------------------------------------------------------------- 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 ---26-- 27 !Bo Bo Pressu Depth Temperat Trans Fluores Salinity Oxygen Oxyge PAR Conductiv Numb Samp Chloro Fl Phaeo- Oxygen: Oxyge Fl Tempe Nitrat Fl Silica Fl Phospha Fl !tt tt re ure: missi cence: :T1:C1 : n: ity: er_o le_ phyll: ag Pigmen Dissolv n: ag ratur e_ ag te ag te ag !~u ~u Secondar vity: URU: Dissol Disso Secondary ~bin Numb Extrac ~a t: ed Disso ~o e: plus_ ~t ~i ~p !mb en y Green Wetlabs ved: lved: _rec er ted ct Extrac lved lv Draw Nitrit ri ca ha !er ce SBE SBE ords ed ted ed e te te te !-- -- ------ ------ -------- ----- ------- -------- ------ ----- ------ --------- ---- ---- ------ -- ------ ------- ----- -- ----- ------ -- ------ -- ------- -- *END OF HEADER 10 10 5.2 5.2 8.1924 96.8 0.674 31.8742 6.69 291.5 0.1 3.34522 241 385 0.40 0 0.11 6.630 289.0 0 9.1 9.85 0 14.01 0 1.044 0 9 9 10.2 10.1 8.1930 96.7 0.658 31.8742 6.68 291.1 0.0 3.34548 241 384 0.40 0 0.11 6.631 289.0 0 9.1 9.47 0 13.94 0 1.031 0 8 8 19.9 19.7 8.1941 96.8 0.719 31.8739 6.68 291.1 0.0 3.34596 241 383 0.41 0 0.11 6.627 288.8 0 9.1 9.42 6 14.02 6 1.041 6 7 7 30.1 29.8 8.1799 97.0 0.609 31.8736 6.67 290.7 0.0 3.34514 241 382 0.43 0 0.13 6.623 288.7 0 9.1 9.66 0 13.91 0 1.045 0 6 6 49.8 49.3 8.2066 97.5 0.435 31.8839 6.63 288.9 0.0 3.34926 241 381 -99.00 0 -99.00 6.591 287.3 0 9.0 9.60 0 13.69 0 1.041 0 5 5 74.5 73.9 8.3264 97.7 0.233 31.9888 6.46 281.5 0.0 3.37058 241 380 -99.00 0 -99.00 6.420 279.8 6 9.2 9.45 0 13.34 0 0.991 0 4 4 100.1 99.2 8.2952 97.7 0.154 32.2309 6.07 264.5 0.0 3.39196 241 379 -99.00 0 -99.00 6.046 263.4 0 9.1 11.44 0 14.76 0 1.067 0 3 3 125.0 123.8 8.2240 96.4 0.189 32.5217 5.41 235.6 0.0 3.41436 241 378 -99.00 0 -99.00 5.427 236.4 0 9.1 15.10 0 20.26 0 1.281 0 2 2 150.5 149.1 7.3040 95.9 0.136 33.5775 2.85 124.0 0.0 3.43267 241 377 -99.00 0 -99.00 2.875 125.1 0 8.3 29.95 0 41.24 0 2.101 0 1 1 186.3 184.6 6.8495 92.4 0.138 33.8115 2.28 99.2 0.0 3.41507 241 376 -99.00 0 -99.00 2.249 97.9 0 7.9 34.60 0 51.03 0 2.420 0