*2024/05/02 13:10:05.46 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/08/28 23:30:04.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 6 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : C1C88D2 NUMBER OF CHANNELS : 30 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Bottle_Number n/a 1 6 2 Bottle:Firing_Sequence n/a 1 6 3 Pressure decibar 5.053 33.249 4 Depth metres 5.011 32.964 5 Temperature:Primary 'deg C (ITS90)' 10.4255 13.8301 6 Transmissivity %/metre 51.7 60.7 7 Transmissivity:Green %/metre 68.9 82.7 8 Fluorescence:URU:Seapoint mg/m^3 0.808 1.831 9 PAR uE/m^2/sec 1.464 129.332 10 Salinity:T0:C0 PSS-78 31.9593 32.4049 11 Oxygen:Dissolved:SBE mL/L 3.719 8.844 12 Oxygen:Dissolved:SBE umol/kg 162.1 385.8 13 Conductivity:Primary S/m 3.592879 3.850022 14 Number_of_bin_records n/a 65 241 15 Sample_Number n/a 249 254 16 Temperature:Draw 'deg C (ITS90)' 10.5 14.1 17 Chlorophyll:Extracted mg/m^3 1.08 2.76 18 Flag:Chlorophyll:Extracted n/a 19 Phaeo-Pigment:Extracted mg/m^3 0.4 0.88 20 Oxygen:Dissolved mL/L 3.69 8.928 21 Oxygen:Dissolved umol/kg 160.8007 389.4483 22 Flag:Oxygen:Dissolved n/a 23 Nitrate_plus_Nitrite umol/L 0 22.1 24 Flag:Nitrate_plus_Nitrite n/a 25 Silicate umol/L 4.09 35.3 26 Flag:Silicate n/a 27 Phosphate umol/L 0.266 2.217 28 Flag:Phosphate n/a 29 Ammonium umol/L 0.15 4.49 30 Flag:Ammonium ' ' $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 ' ' 7 F ' ' 1 10 -99 ' ' 9 F ' ' 4 11 -99 ' ' 7 F ' ' 2 12 -99 ' ' 6 F ' ' 1 13 -99 ' ' 10 F ' ' 5 14 -99 ' ' 5 I I 0 15 -99 ' ' 5 I I 0 16 -99 ' ' 6 F R4 1 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 7 F R4 2 20 -99 ' ' 8 F R4 3 21 -99 ' ' 6 F ' ' 1 22 n/a ' ' 3 NQ C ' ' 23 -99 ' ' 7 F R4 2 24 0 ' ' 3 NQ C ' ' 25 -99 ' ' 7 F R4 2 26 0 ' ' 3 NQ C ' ' 27 -99 ' ' 8 F R4 3 28 0 ' ' 3 NQ C ' ' 29 -99 ' ' ' ' F7.2 R4 ' ' 30 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 : 2023-026 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : La Perouse SCIENTIST : Sastri A. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : WCVI STATION : LD02 EVENT NUMBER : 86 LATITUDE : 48 58.37000 N ! (deg min) LONGITUDE : 125 47.00000 W ! (deg min) WATER DEPTH : 42 ALTIMETER (M) : 10.38 ! custom item $REMARKS 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 : 0550 LOCATION : Mid-ship ! custom item $TABLE: SENSORS ! Name Abs Depth Serial No ! ----------------------------------- -------------- ---------- Temperature ' ' 6754 Conductivity ' ' 6141 'Pressure:Digiquartz with TC' ' ' 1515 Temperature:2 ' ' 6736 Conductivity:2 ' ' 6146 'Oxygen:SBE 43' ' ' 1119 Fluorometer:Seapoint ' ' 3950 PAR/Irradiance:Biospherical/Licor ' ' 70613 Altimeter ' ' 79487 'Transmissometer:WET Labs C-Star' ' ' 1185DR 'Transmissometer:WET Labs C-Star:2' ' ' 1883DG $END $REMARKS Software Version Seasave V 7.26.7.121 $END *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SBE_IOS 4.3 2024/04/16 14:54:28 1270 1270 CLEAN 5.3 2024/04/16 14:54:46 1270 1270 ADDSAMP 3.6 2024/04/16 15:57:06 1270 1270 BINAVE 4.2.1 2024/04/16 16:11:45 1270 6 MERGE 3.6 2024/04/17 12:50:52 6 6 CLEAN 5.3 2024/04/17 12:51:01 6 6 CALIB 12.1 2024/05/01 15:00:17 6 6 SORT 3.6 2024/05/01 16:54:18 6 6 REMOVECH 8.2 2024/05/01 16:55:13 6 6 CHGUNITS 3.2 2024/05/01 16:56:16 6 6 CHGUNITS 3.2 2024/05/01 16:56:20 6 6 REORDER 1.3.1 2024/05/01 16:57:09 ? ? HDREDIT2 3.2 2024/05/02 13:10:05 ? ? $END $REMARKS -CLEAN functions: 2024/04/16 14:54:39 20 Reset #RECS, MIN & MAX values in header. Set event to last 4 characters of file name -The following ADDSAMP parameters were used: Sample Number Lookup File: E:\Telework\2023-026\Processing\hydro\addsamp.csv Bottle Channel Name: Bottle_Number -The following BINAVE parameters were used: Bin channel = Bottle_Number Averaging interval = 1.00 Minimum bin value = 0.000 Average value was used Interpolated values were NOT used for empty bins Channel 'NUMBER_OF_BIN_RECORDS' was added to file. -The following MERGE parameters were used: 2024/04/17 12:50:52 Merge Channel: Bottle_Number Merge Scheme Used: 4: Add Secondary to Matching Primary Overlap Scheme Used: Keep Primary Primary Channels to Include: ALL Secondary Channels to Include: Sample_Number, Bottle:Position, Salinity:Bottle, Flag:Salinity:Bottle, Chlorophyll:Extracted, Flag:Chlorophyll:Extracted, Phaeo-Pigment:Extracted, Oxygen:Dissolved, Flag:Oxygen:Dissolved, Temperature:Draw, Nitrate_plus_Nitrite, Flag:Nitrate_plus_Nitrite, Silicate, Flag:Silicate, Phosphate, Flag:Phosphate, Dimethyl_Sulphide_7890GC, Flag:Dimethyl_Sulphide_7890GC, Dimethyl_Sulphide_8890GC, Flag:Dimethyl_Sulphide_8890GC, Dimethylsulfoniopropionate_Dissolved, Flag:Dimethylsulfoniopropionate_Dissolved, Dimethylsulfoniopropionate_Total, Flag:Dimethylsulfoniopropionate_Total, Ammonium, Flag:Ammonium Primary file : E:\Telework\2023-026\Processing\hydro\2023-026-0086.samavg Secondary file: E:\Telework\2023-026\Processing\hydro\2023-026-0086.mrgcln1s 6 secondary records matched to primary records. -CLEAN functions: 2024/04/17 12:50:29 20 Reduce header to sections: FIL ADM LOC DEP REC INS HIS RAW CAL COM Remarks removed from kept sections. -SORT parameters: 2024/04/17 12:50:36 Sorted in ascending order of channel Bottle_Number -CLEAN functions: 2024/04/17 12:50:59 20 Reset #RECS, MIN & MAX values in header. Change character data from " " to "0" in channels Flag:* Remove Sea-Bird comments from the header. Remove remark heading: "Comments from secondary" -CALIB parameters: 2024/05/01 15:00:17 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2023-026\Processing\doc\2023-026-recal1.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 18 Salinity:T0:C0 PSS-78 10 0.5300000E-02 0.1000000E+01 19 Salinity:T1:C1 PSS-78 10 0.6300000E-02 0.1000000E+01 20 Oxygen:Dissolved:SBE mL/L 10 0.1130000E-01 0.1022700E+01 -SORT parameters: 2024/05/01 16:54:18 Sorted in ascending order of channel Pressure [decibar] -REMOVECH 2024/05/01 16:55:13 The following CHANNEL(S) were removed: Scan_Number Temperature:Secondary [deg C (ITS90)] Conductivity:Secondary [S/m] Oxygen:Voltage:SBE [volts] Descent_Rate [m/s] Status:Pump Altimeter [metres] Salinity:T1:C1 [PSS-78] Flag -CHANGE units: Temperature reference channel: Temperature:Primary Salinity reference channel: Salinity:T0:C0 [PSS-78] 'Oxygen:Dissolved:SBE' changed from mL/L to umol/kg -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T0:C0 [PSS-78] 'Oxygen:Dissolved' changed from mL/L to umol/kg -HEADER EDITS: 2024/05/02 13:10:05 Applied edit header: E:\Telework\2023-026\Processing\doc\HYDRO\2023-026-bot-hdr.txt Channel 2: Bottle:Firing_Sequence [n/a] Name: Bottle_Number ==> Bottle:Firing_Sequence Channel 1: Bottle_Number [n/a] Name: Bottle:Position ==> Bottle_Number Channel 3: Pressure [decibar] Format: F10.3 ==> F7.1 Channel 4: Depth [metres] Name: Depth:Salt_Water ==> Depth Format: F10.3 ==> F7.1 Channel 6: Transmissivity [%/metre] Name: Transmissivity:1 ==> Transmissivity Channel 7: Transmissivity:Green [%/metre] Name: Transmissivity:2 ==> Transmissivity:Green Channel 11: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 Channel 14: Number_of_bin_records [n/a] Pad: ' ' ==> -99 Channel 16: Temperature:Draw [deg C (ITS90)] Format: F7.2 ==> F6.1 Channel 18: Flag:Chlorophyll:Extracted [n/a] Units: ==> n/a Channel 22: Flag:Oxygen:Dissolved [n/a] Units: ==> n/a Pad: 0 ==> n/a Channel 24: Flag:Nitrate_plus_Nitrite [n/a] Units: ==> n/a Channel 26: Flag:Silicate [n/a] Units: ==> n/a Channel 28: Flag:Phosphate [n/a] Units: ==> n/a Channel 9: PAR [uE/m^2/sec] Format: F11.3 ==> F7.1 Channel 13: Conductivity:Primary [S/m] Format: F11.6 ==> F10.5 $END *COMMENTS Sample_Number 251: OXY-1: Sample overtitrated as a result of a late endpoint and stuff floating around in sample. OXY-2: Stuff floating around in sample. Sample_Number 252: OXY: Stuff floating around in sample. 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 10-11 weeks 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 details on methodology, see document QF2023-026_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 QF2023-026OXY*.xlsx. 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 22 - 34 days after collection. For details including a duplicate analysis, see document QF2023-026SAL*.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 Insitute 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 QF2023-026nuts*.xlsx. The ammonium method used at IOS is a modification of the fluorometric technique of Holmes et al, 1999. The method uses a single working reagent and minimizes contamination, can be applied to a large range of ammonium concentrations, and allows for samples to be processed quickly in the field. Samples are collected during the day into vials cleaned with working reagent, and stored in the Cold Room on the Tully. Working standards that bracket the expected sample concentrations are made up daily from seawater low in organic matter, collected on 2023-066, station P23, at 2005m. Samples and standards are spiked with working reagent at the same time, and allowed to incubate for 8-18 hours to maximize fluoroescence signal and stability. The fluoroscence is then read using a Turner Trilogy fluorometer in raw fluoroscence mode. A linear calibration curve is generated from the standards, and the calibration equation then applied to sample fluoroscene to determine sample concentration. For more details, please see the Methodology tab of file QF2022-026NH4*.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. 5. Holmes, R.M., Aminot, A., Kérouel, R., Hooker, B. A., and Peterson, B.J. (1999). A simple and precise method for measuring ammonium in marine and freshwater ecosystems. Can. J. Fish. Aquat. Sci., 56: 1801-1808. * For PDF versions of these papers see folder \\Cruise_Data\DOCUMENTS\Analysis Reference Papers --------------------------------------------------------------------------------- CTD Data Processing Notes: -------------------------- Conductivity, Transmissivity and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. NOTE: While the CTD fluorescence data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples, particularly for casts far from shore. It is recommended that users check extracted chlorophyll values where available. 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. For details on the processing see the report: 2023-026_Processing_Report.doc. --------------------------------------------------------------------------------- *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- -------- ---- ------ ------------ Salinity:T0:C0 PSS-78 10 -99 () (0.53E-02 1) Salinity:T1:C1 PSS-78 10 -99 () (0.63E-02 1) Oxygen:Dissolved:SBE mL/L 10 -99 () (0.113E-01 1.0227) $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-- 28 --29-- 30 !Bo Bo Pressu Depth Temperat Trans Trans Fluores PAR Salinity Oxygen Oxyge Conductiv Numb Samp Tempe Chloro Fl Phaeo- Oxygen: Oxyge Fl Nitrat Fl Silica Fl Phospha Fl Ammoni Fl !tt tt re ure: missi missi cence: :T0:C0 : n: ity: er_o le_ ratur phyll: ag Pigmen Dissolv n: ag e_ ag te ag te ag um ag !~u ~u Primary vity vity: URU: Dissol Disso Primary ~bin Numb e: Extrac ~a t: ed Disso ~o plus_ ~t ~i ~p ~o !mb en Green Seapoin ved: lved: _rec er Draw ted ct Extrac lved lv Nitrit ri ca ha ni !er ce t SBE SBE ords ed ted ed e te te te um !-- -- ------ ------ -------- ----- ----- ------- ------ -------- ------ ----- --------- ---- ---- ----- ------ -- ------ ------- ----- -- ------ -- ------ -- ------- -- ------ -- *END OF HEADER 6 6 5.1 5.0 13.8301 51.7 68.9 1.794 129.3 31.9593 8.84 385.7 3.85002 241 254 -99.0 -99.00 0 -99.00 -99.000 -99.0 0 -99.00 0 -99.00 0 -99.000 0 -99.00 0 5 5 5.1 5.1 13.8253 52.0 69.1 1.831 125.5 31.9595 8.84 385.8 3.84963 65 253 14.1 2.76 0 0.45 8.928 389.4 0 0.00 0 4.09 0 0.266 0 0.15 6 4 4 9.9 9.8 13.1817 56.2 76.1 0.808 41.8 31.9905 8.13 354.8 3.79528 241 252 13.5 1.08 0 0.40 8.130 354.6 3 0.98 6 7.77 6 0.384 6 1.08 6 3 3 20.7 20.5 11.3845 60.7 82.7 1.594 7.2 32.1602 5.40 235.5 3.65288 241 251 11.4 1.21 0 0.42 5.504 239.9 36 12.57 0 23.91 0 1.429 0 4.49 6 2 2 30.4 30.2 10.4496 59.0 80.0 1.112 2.0 32.3958 3.77 164.2 3.59399 241 250 10.5 1.77 6 0.88 3.804 165.8 0 21.62 0 34.67 0 2.162 0 -99.00 0 1 1 33.2 33.0 10.4255 60.0 82.3 1.026 1.5 32.4049 3.72 162.1 3.59288 241 249 10.5 1.48 0 0.85 3.690 160.8 0 22.10 0 35.30 0 2.217 0 -99.00 0