*2026/09/22 15:14:57.24 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/10 21:02:50.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 4 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 4 2 Bottle:Firing_Sequence n/a 1 4 3 Pressure decibar 1.6 20.3 4 Depth metres 1.6 20.1 5 Temperature:Secondary 'deg C (ITS90)' 8.6713 8.8206 6 Transmissivity %/metre 74.7 81.5 7 Transmissivity:Green %/metre 80 87.2 8 Fluorescence:URU:Wetlabs mg/m^3 2.852 5.603 9 Salinity:T1:C1 PSS-78 29.511 29.7914 10 Oxygen:Dissolved:SBE mL/L 6.05 6.53 11 Oxygen:Dissolved:SBE umol/kg 264.1 285.1 12 PAR uE/m^2/sec 6.5 450.9 13 PAR:Reference uE/m^2/sec 852.9 1030.2 14 Conductivity:Secondary S/m 3.17146 3.18729 15 Number_of_bin_records n/a 241 241 16 Sample_Number n/a 8 11 17 Chlorophyll:Extracted mg/m^3 3.63 9.4 18 Flag:Chlorophyll:Extracted n/a 19 Phaeo-Pigment:Extracted mg/m^3 1.03 1.38 20 Nitrate_plus_Nitrite umol/L 18.63 21.82 21 Flag:Nitrate_plus_Nitrite n/a 22 Silicate umol/L 42.39 43.34 23 Flag:Silicate n/a 24 Phosphate umol/L 1.842 1.971 25 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 ' ' 6 F ' ' 1 8 -99 ' ' 8 F ' ' 3 9 -99 ' ' 9 F ' ' 4 10 -99 ' ' 7 F ' ' 2 11 -99 ' ' 6 F ' ' 1 12 -99 ' ' 7 F ' ' 1 13 -99 ' ' 7 F ' ' 1 14 -99 ' ' 10 F ' ' 5 15 -99 ' ' 5 I I 0 16 -99 ' ' 5 I I 0 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 7 F R4 2 20 -99 ' ' 7 F R4 2 21 0 ' ' 3 NQ C ' ' 22 -99 ' ' 7 F R4 2 23 0 ' ' 3 NQ C ' ' 24 -99 ' ' 8 F R4 3 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 : 2025-005 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Salish Sea Biophysical Survey SCIENTIST : Jackson J. PLATFORM : Vector *LOCATION GEOGRAPHIC AREA : Strait of Georgia STATION : SC04 EVENT NUMBER : 3 LATITUDE : 48 43.51000 N ! (deg min) LONGITUDE : 123 24.98000 W ! (deg min) WATER DEPTH : 94 *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 ' ' 3321 'Pressure:Digiquartz with TC' ' ' 0585 Temperature:2 ' ' 4484 Conductivity:2 ' ' 2754 'Oxygen:SBE 43' ' ' 1176 'Fluorometer:WET Labs ECO-AFL/FL' ' ' FLRTD-2216 Altimeter ' ' 73171 PAR/Irradiance:Biospherical/Licor ' ' 4615 'Transmissometer:WET Labs C-Star' ' ' 498DR 'Transmissometer:WET Labs C-Star:2' ' ' 1883DG SPAR:Biospherical/Licor ' ' 20518 $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 2026/09/03 13:14:47 964 964 OXYGEN 1.0 2026/09/03 13:14:47 964 964 AV1 1.0 2026/09/03 13:14:47 964 4 ADDSAMP 1.0 2026/09/03 13:14:50 4 4 RENAME 1.0 2026/09/03 13:14:50 4 4 MERGE 1.0 2026/09/03 13:14:51 4 4 CALIB 12.1 2026/09/15 10:58:06 4 4 SORT 3.6 2026/09/22 14:10:58 4 4 REMOVECH 8.2 2026/09/22 14:12:22 4 4 CHGUNITS 3.2 2026/09/22 14:18:18 4 4 CHGUNITS 3.2 2026/09/22 14:19:35 4 4 REORDER 1.3.1 2026/09/22 15:02:19 ? ? HDREDIT2 3.2 2026/09/22 15:14:57 ? ? $END $REMARKS -DATCNV: 2026/09/03 13:14:47 Converted raw CTD cast (.hex) to .ros format. Output contained 964 records with instrument channels. -CONVERT OXYGEN: 2026/09/03 13:14:47 Converted Oxygen data from Voltage to ml/L and umol/Kg Output contained 964 records of Oxygen data -AV1: 2026/09/03 13:14:47 Averaged CTD data around each bottle position. Channel 'Number_of_bin_records' was added to file. Records reduced from 964 to 4 (one row per bottle). -ADDSAMP: 2026/09/03 13:14:50 Merge Sample numbers assigned from Compiled Rosette Sheets into AV1 Niskin# column renamed to bottle position for consistency with AV1. 4 AV1 records successfully annotated with Sample_Number. -RENAME: 2026/09/03 13:14:50 Standardized and reordered channel names for CHE output. 19 Columns renamed and reordered successfully -MERGE: 2026/09/03 13:14:51 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 4 secondary lab records matched to primary records. -CALIB parameters: 2026/09/15 10:58:06 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2025-005\Processing\doc\2025-005-recal1.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 13 Salinity:T1:C1 PSS-78 10 -0.4100000E-02 0.1000000E+01 14 Oxygen:Dissolved:SBE mL/L 10 0.1380000E-01 0.1019900E+01 -SORT parameters: 2026/09/22 14:10:58 Sorted in ascending order of channel Pressure -REMOVECH 2026/09/22 14:12:22 The following CHANNEL(S) were removed: Temperature:Primary [deg C (ITS90)] 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' changed from mL/L to umol/kg -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T1:C1 - No units changed -HEADER EDITS: 2026/09/22 15:14:57 Applied edit header: E:\Telework\2025-005\Processing\doc\HYDRO\2025-005-bot-hdr.txt Channel 1: Bottle:Firing_Sequence [n/a] Name: Bottle_Number ==> Bottle:Firing_Sequence Channel 12: PAR [uE/m^2/sec] Format: F11.3 ==> F7.1 Channel 13: PAR:Reference [uE/m^2/sec] Name: SPAR ==> PAR:Reference $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 3-10 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 QF2025-005_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 QF2025-005_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 8 - 13 days after collection. For details including a duplicate analysis, see document QF2025-005_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 QF2025-005nuts*.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. 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. 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. *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- -------- ---- ------ ------------ Salinity:T1:C1 PSS-78 10 -99 () (-0.41E-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 Trans Fluores Salinity Oxygen Oxyge PAR PAR: Conductiv Numb Samp Chloro Fl Phaeo- Nitrat Fl Silica Fl Phospha Fl !tt tt re ure: missi missi cence: :T1:C1 : n: Refere ity: er_o le_ phyll: ag Pigmen e_ ag te ag te ag !~u ~u Secondar vity vity: URU: Dissol Disso nce Secondary ~bin Numb Extrac ~a t: plus_ ~t ~i ~p !mb en y Green Wetlabs ved: lved: _rec er ted ct Extrac Nitrit ri ca ha !er ce SBE SBE ords ed ted e te te te !-- -- ------ ------ -------- ----- ----- ------- -------- ------ ----- ------ ------ --------- ---- ---- ------ -- ------ ------ -- ------ -- ------- -- *END OF HEADER 4 4 1.6 1.6 8.8206 74.7 80.0 4.622 29.5110 6.53 285.1 450.9 852.9 3.17146 241 11 9.40 0 1.36 18.63 0 42.39 0 1.842 0 3 3 5.2 5.2 8.7705 76.9 81.7 5.603 29.5881 6.38 278.5 149.6 1000.7 3.17504 241 10 7.18 6 1.12 19.96 0 42.76 0 1.871 0 2 2 10.5 10.4 8.6894 81.5 87.2 3.394 29.7593 6.10 266.3 37.6 940.5 3.18526 241 9 4.16 0 1.03 21.65 0 43.34 0 1.971 0 1 1 20.3 20.1 8.6713 81.3 87.1 2.852 29.7914 6.05 264.1 6.5 1030.2 3.18729 241 8 3.63 0 1.38 21.82 0 43.33 0 1.949 0