*2026/04/28 15:17:09.36 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/23 18:58:06.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 1 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : A48A105C NUMBER OF CHANNELS : 18 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Bottle_Number n/a 1 1 2 Bottle:Firing_Sequence n/a 1 1 3 Pressure decibar 5.2 5.2 4 Depth metres 5.2 5.2 5 Temperature:Secondary 'deg C (ITS90)' 13.6536 13.6536 6 Salinity:T1:C1 PSS-78 28.8661 28.8661 7 Conductivity:Secondary S/m 3.499 3.499 8 Number_of_bin_records n/a 241 241 9 Sample_Number n/a 64 64 10 Chlorophyll:Extracted mg/m^3 2.74 2.74 11 Flag:Chlorophyll:Extracted n/a 12 Phaeo-Pigment:Extracted mg/m^3 0.83 0.83 13 Nitrate_plus_Nitrite umol/L 1.1 1.1 14 Flag:Nitrate_plus_Nitrite n/a 15 Silicate umol/L 12.89 12.89 16 Flag:Silicate n/a 17 Phosphate umol/L 0.258 0.258 18 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 ' ' 9 F ' ' 4 7 -99 ' ' 10 F ' ' 5 8 -99 ' ' 5 I I 0 9 -99 ' ' 5 I I 0 10 -99 ' ' 7 F R4 2 11 0 ' ' 3 NQ C ' ' 12 -99 ' ' 7 F R4 2 13 -99 ' ' 7 F R4 2 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 7 F R4 2 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 8 F R4 3 18 0 ' ' 3 NQ C ' ' $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 *ADMINISTRATION MISSION : 2024-025 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : SoG Juvenile Salmon SCIENTIST : Tabata A. PLATFORM : Sir John Franklin *LOCATION GEOGRAPHIC AREA : Strait of Georgia STATION : SOG72 EVENT NUMBER : 141 LATITUDE : 50 18.27000 N ! (deg min) LONGITUDE : 124 41.30000 W ! (deg min) WATER DEPTH : 679 *INSTRUMENT TYPE : SBE CTD MODEL : 911 SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item $TABLE: SENSORS ! Name Abs Depth Serial No ! --------------------------------- -------------- ---------- Temperature ' ' 5725 Conductivity ' ' 4448 'Pressure:Digiquartz with TC' ' ' 1222 Temperature:2 ' ' 5013 Conductivity:2 ' ' 4513 'Oxygen:SBE 43' ' ' 4367 Fluorometer:Seapoint ' ' 3949 'Transmissometer:WET Labs C-Star' ' ' 983DR Altimeter ' ' 75321 $END $REMARKS Software Version Seasave V 7.26.7.121 $END *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- DATCNV 1.0 2026/04/07 10:02:02 241 241 OXYGEN 1.0 2026/04/07 10:02:02 241 241 AV1 1.0 2026/04/07 10:02:02 241 1 ADDSAMP 1.0 2026/04/07 10:02:07 1 1 RENAME 1.0 2026/04/07 10:02:07 1 1 MERGE 1.0 2026/04/07 10:02:07 1 1 CALIB 12.1 2026/04/28 14:11:11 1 1 CALIB 12.1 2026/04/28 14:14:07 1 1 SORT 3.6 2026/04/28 14:17:44 1 1 REMOVECH 8.2 2026/04/28 14:18:29 1 1 CHGUNITS 3.2 2026/04/28 14:25:31 1 1 CHGUNITS 3.2 2026/04/28 14:28:27 1 1 REORDER 1.3.1 2026/04/28 14:46:05 ? ? HDREDIT2 3.2 2026/04/28 15:17:09 ? ? $END $REMARKS -DATCNV: 2026/04/07 10:02:02 Converted raw CTD cast (.hex) to .ros format. Output contained 241 records with instrument channels. -CONVERT OXYGEN: 2026/04/07 10:02:02 Converted Oxygen data from Voltage to ml/L and umol/Kg Output contained 241 records of Oxygen data -AV1: 2026/04/07 10:02:02 Averaged CTD data around each bottle position. Channel 'Number_of_bin_records' was added to file. Records reduced from 241 to 1 (one row per bottle). -ADDSAMP: 2026/04/07 10:02:07 Merge Sample numbers assigned from Compiled Rosette Sheets into AV1 Niskin# column renamed to bottle position for consistency with AV1. 1 AV1 records successfully annotated with Sample_Number. -RENAME: 2026/04/07 10:02:07 Standardized and reordered channel names for CHE output. 15 Columns renamed and reordered successfully -MERGE: 2026/04/07 10:02:07 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_NUTS Depth_NUTS Nitrate_plus_Nitrite Flag:Nitrate_plus_Nitrite Silicate Flag:Silicate Phosphate Flag:Phosphate 1 secondary lab records matched to primary records. -CALIB parameters: 2026/04/28 14:11:11 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2024-025\Processing\doc\2024-025-recal-SIL.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 22 Silicate umol/L 120 0.9040000E+00 0.3000000E-02 0.2500000E+02 Salinity:T0:C0 -CALIB parameters: 2026/04/28 14:14:07 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2024-025\Processing\doc\2024-025-recal-1222.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 11 Oxygen:Dissolved:SBE [mL/L] mL/L 10 0.0000000E+00 0.1024000E+01 -SORT parameters: 2026/04/28 14:17:44 Sorted in ascending order of channel Pressure -REMOVECH 2026/04/28 14:18:29 The following CHANNEL(S) were removed: Temperature:Primary [deg C (ITS90)] Transmissivity [%/metre] Fluorescence:URU [mg/m^3] Salinity:T0:C0 [PSS-78] Oxygen:Dissolved:SBE [mL/L] Oxygen:Dissolved:SBE [umol/kg] Conductivity:Primary [S/m] -CHANGE units: Temperature reference channel: Temperature:Secondary [deg C (ITS90)] Salinity reference channel: Salinity:T1:C1 - No units changed -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T1:C1 - No units changed -HEADER EDITS: 2026/04/28 15:17:09 Applied edit header: E:\Telework\2024-025\Processing\doc\HYDRO\2024-025-bot-hdr1222.txt Channel 1: Bottle:Firing_Sequence [n/a] Name: Bottle_Number ==> Bottle:Firing_Sequence Channel 12: Phaeo-Pigment:Extracted [mg/m^3] Units: n/a ==> mg/m^3 $END *COMMENTS ---------------------------------------------------------------------------------------------------- Analysis methods: ----------------- Chlorophyll samples were filtered onto 25mm GF/F filters after collection, and immediately frozen and stored in a -80C freezer until analysis. All samples were returned to the Institute of Ocean Sciences and analyzed 4.5 weeks after the collection 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 QF2024-025_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 IOS using an automated Winkler titration system (Metrohm Dosimat model 876, 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 QF2024-025OXY*.xlsx. Salinity samples were collected in 200 mL or 250mL 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 61-72 days after collection. For details see document QF2024-025SAL*.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 QF2024-025nuts*.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, Fluorescence and Transmissivity data are nominal and unedited except that some records were removed in editing temperature and salinity. Recalibration of SBE dissolved oxygen sensor #4367 was based on calibration sampling at 3 sites. For details on the processing see the report: 2024-025_Processing_Report.doc. ---------------------------------------------------------------------------------------------------- *CALIBRATION $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]' mL/L 10 -99 () (0 1.024) $END !1- 2- --3--- --4--- ---5---- ---6---- ----7---- -8-- -9-- --10-- 11 --12-- --13-- 14 --15-- 16 ---17-- 18 !Bo Bo Pressu Depth Temperat Salinity Conductiv Numb Samp Chloro Fl Phaeo- Nitrat Fl Silica Fl Phospha Fl !tt tt re ure: :T1:C1 ity: er_o le_ phyll: ag Pigmen e_ ag te ag te ag !~u ~u Secondar Secondary ~bin Numb Extrac ~a t: plus_ ~t ~i ~p !mb en y _rec er ted ct Extrac Nitrit ri ca ha !er ce ords ed ted e te te te !-- -- ------ ------ -------- -------- --------- ---- ---- ------ -- ------ ------ -- ------ -- ------- -- *END OF HEADER 1 1 5.2 5.2 13.6536 28.8661 3.49900 241 64 2.74 0 0.83 1.10 0 12.89 0 0.258 0