*2025/11/05 13:24:05.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/23 10:01:39.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 19 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : C60783BA NUMBER OF CHANNELS : 31 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Bottle:Firing_Sequence n/a 1 19 2 Bottle_Number n/a 1 19 3 Pressure decibar 4.813 1000.355 4 Depth metres 4.772 989.354 5 Temperature:Primary 'deg C (ITS90)' 3.3913 10.7115 6 Conductivity:Primary S/m 3.192133 3.525681 7 Salinity:T0:C0 PSS-78 31.4282 34.3569 8 Oxygen:Dissolved:SBE mL/L 0.204 6.846 9 Oxygen:Dissolved:SBE umol/kg 8.9 298.6 10 Fluorescence:URU:Wetlabs mg/m^3 0.17E-01 2.276 11 Transmissivity %/metre 44.3 60.2 12 Transmissivity:Green %/metre 64.7 93.9 13 Number_of_bin_records n/a 46 241 14 Sample_Number n/a 408 426 15 Salinity:Bottle PSS-78 31.4318 34.3569 16 Flag:Salinity:Bottle n/a 17 Oxygen:Dissolved mL/L 0.256 6.827 18 Oxygen:Dissolved umol/kg 11.1 297.8 19 Flag:Oxygen:Dissolved n/a 20 Temperature:Draw 'deg C (ITS90)' 6.5 11.7 21 Chlorophyll:Extracted mg/m^3 1.45 1.81 22 Flag:Chlorophyll:Extracted n/a 23 Phaeo-Pigment:Extracted mg/m^3 0.68 0.88 24 Nitrate_plus_Nitrite umol/L 0.28 44.74 25 Flag:Nitrate_plus_Nitrite n/a 26 Silicate umol/L 3.1 136.34 27 Flag:Silicate n/a 28 Phosphate umol/L 0.439 3.374 29 Flag:Phosphate n/a 30 Ammonium umol/L 0.13 0.26 31 Flag:Ammonium 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 ' ' 10 F ' ' 5 7 -99 ' ' 9 F R4 4 8 -99 ' ' 7 F ' ' 2 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 8 F ' ' 3 11 -99 ' ' 6 F ' ' 1 12 -99 ' ' 6 F ' ' 1 13 ' ' ' ' 5 I I 0 14 -99 ' ' 5 I I ' ' 15 -99 ' ' ' ' F9.4 R4 ' ' 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' ' ' F8.3 R4 ' ' 18 -99 ' ' 6 F ' ' 1 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' ' ' F6.1 R4 ' ' 21 -99 ' ' ' ' F7.2 R4 ' ' 22 0 ' ' 3 NQ C ' ' 23 -99 ' ' ' ' F7.2 R4 ' ' 24 -99 ' ' ' ' F7.2 R4 ' ' 25 0 ' ' 3 NQ C ' ' 26 -99 ' ' ' ' F7.2 R4 ' ' 27 0 ' ' 3 NQ C ' ' 28 -99 ' ' ' ' F8.3 R4 ' ' 29 0 ' ' 3 NQ C ' ' 30 -99 ' ' ' ' F7.2 R4 ' ' 31 0 ' ' 3 NQ C ' ' $END $REMARKS This file converted from Sea-Bird file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\ROS files\2024-019-0148.ros $END *ADMINISTRATION MISSION : 2024-019 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : La Perouse SCIENTIST : Sastri A. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : CS00 EVENT NUMBER : 148 LATITUDE : 50 27.67000 N ! (deg min) LONGITUDE : 129 55.06000 W ! (deg min) WATER DEPTH : 2172 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item $TABLE: SENSORS ! Name Abs Depth Serial No ! ----------------------------------- -------------- ---------- Temperature ' ' 2106 Conductivity ' ' 2754 'Pressure:Digiquartz with TC' ' ' 0443 Temperature:2 ' ' 5130 Conductivity:2 ' ' 1766 'Oxygen:SBE 43' ' ' 4372 Altimeter ' ' 76341 PAR/Irradiance:Biospherical/Licor ' ' 70613 'Fluorometer:WET Labs ECO-AFL/FL' ' ' FLRTD-2216 'Transmissometer:WET Labs C-Star' ' ' 1185DR 'Transmissometer:WET Labs C-Star:2' ' ' 1883DG $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 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SBE_IOS 4.3 2025/09/11 08:54:54 4197 4197 CLEAN 5.3 2025/09/11 08:57:51 4197 4197 ADDSAMP 3.6 2025/09/11 09:26:49 4197 4197 BINAVE 4.2.1 2025/09/11 09:29:17 4197 19 MERGE 3.6 2025/09/11 13:12:41 19 19 CLEAN 5.3 2025/09/11 13:38:36 19 19 CALIB 12.1 2025/10/29 14:03:33 19 19 CALIB 12.1 2025/10/31 09:08:47 19 19 SORT 3.6 2025/10/31 09:13:18 19 19 REMOVECH 8.2 2025/10/31 09:13:41 19 19 CHGUNITS 3.2 2025/10/31 09:14:19 19 19 CHGUNITS 3.2 2025/10/31 09:15:36 19 19 REORDER 1.3.1 2025/10/31 09:16:10 ? ? REMOVECH 8.2 2025/11/05 10:02:03 19 19 SORT 3.6 2025/11/05 10:44:43 19 19 MERGE 3.6 2025/11/05 10:45:09 19 19 SORT 3.6 2025/11/05 10:47:36 19 19 REORDER 1.3.1 2025/11/05 11:57:10 ? ? CLEAN 5.3 2025/11/05 13:23:36 19 19 HDREDIT2 3.2 2025/11/05 13:24:05 ? ? $END $REMARKS -CLEAN functions: 2025/09/11 08:57:40 20 Reset #RECS, MIN & MAX values in header. Insert Pad Values in Channel: Fluorescence:URU:Wetlabs:ECO-AFL [mg/m^3] where channel Fluorescence:URU:Wetlabs:ECO-AFL [mg/m^3] is in the range -10 t 160 data records in pad range. Set event to last 3 characters of file name -The following ADDSAMP parameters were used: Sample Number Lookup File: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\ ADDSAMP.csv Bottle Channel Name: Bottle_Number [n/a] -The following BINAVE parameters were used: Bin channel = Bottle_Number Averaging interval = 1.00 Minimum bin value = 0.000 Bin 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: 2025/09/11 13:12:41 Merge Channel: Bottle_Number Merge Scheme Used: 1: Interweave Records from Both Files Overlap Scheme Used: Keep Primary Primary Channels to Include: ALL Secondary Channels to Include: Sample_Number [ ], Bottle:Position [ ], Salinity:Bottle [PSS-78], Flag:Salinity Bottle [ ], Oxygen:Dissolved [mL/L], Flag:Oxygen:Dissolved [ ], Temperature:Draw [deg C (ITS90)], Chlorophyll:Extracted [mg/m^3], Flag:Chlorophyll:Extracted [ ], Phaeo-Pigment:Extracted [mg/m^3], Nitrate_plus_Nitrite [umol/L], Flag:Nitrate_plus_Nitrite [ ], Silicate [umol/L], Flag:Silicate [ ], Phosphate [umol/L], Flag:Phosphate [ ], Ammonium [umol/L], Flag:Ammonium [ ] Primary file : C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\2024-019- 0148.samavg Secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\2024-019- 0148.mrgcln1s -SORT parameters: 2025/09/11 13:06:40 Sorted in ascending order of channel Bottle_Number -CLEAN functions: 2025/09/11 13:38:34 20 Reset #RECS, MIN & MAX values in header. Change character data from " " to "0" in channels Flag:* Insert Pad Values in Channel: Fluorescence:URU:Wetlabs:ECO-AFL [mg/m^3] where channel Fluorescence:URU:Wetlabs:ECO-AFL [mg/m^3] is in the range -10 t 0 data records in pad range. Set event to last 3 characters of file name Remove remark heading: "Comments from secondary" -CALIB parameters: 2025/10/29 14:03:33 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Salinity is computed Calibration file = C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\2024-019-recal.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 19 Oxygen:Dissolved:SBE mL/L 10 -0.3700000E-02 0.1000000E+01 Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 14 Salinity:T0:C0 PSS-78 10 -0.1000000E-02 0.1000000E+01 -CALIB parameters: 2025/10/31 09:08:47 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Salinity is computed Calibration file = C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\2024-019-recal2.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 19 Oxygen:Dissolved:SBE mL/L 10 0.1900000E-02 0.1000000E+01 Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 14 Salinity:T0:C0 PSS-78 10 0.0000000E+00 0.1000000E+01 -SORT parameters: 2025/10/31 09:13:18 Sorted in ascending order of channel Pressure [decibar] -REMOVECH 2025/10/31 09:13:41 The following CHANNEL(S) were removed: Scan_Number Temperature:Secondary [deg C (ITS90)] Conductivity:Secondary [S/m] Oxygen:Voltage:SBE [volts] Altimeter [metres] Status:Pump Descent_Rate [m/s] Salinity:T1:C1 [PSS-78] Flag -CHANGE units: Temperature reference channel: Temperature:Primary [deg C (ITS90)] Salinity reference channel: Salinity:T0:C0 'Oxygen:Dissolved:SBE' changed from mL/L to umol/kg -CHANGE units: Temperature reference channel: Temperature:Draw [deg C (ITS90)] Salinity reference channel: Salinity:T0:C0 'Oxygen:Dissolved' changed from mL/L to umol/kg -REMOVECH 2025/11/05 10:02:03 The following CHANNEL(S) were removed: Flag:Ammonium -SORT parameters: 2025/11/05 10:44:43 Sorted in descending order of channel Sample_Number -The following MERGE parameters were used: 2025/11/05 10:45:09 Merge Channel: Sample_Number Merge Scheme Used: 1: Interweave Records from Both Files Overlap Scheme Used: Keep Secondary Primary Channels to Include: ALL Secondary Channels to Include: Flag:Ammonium Primary file : C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\ troubleshooting\2024-019-0148.mrgREMs Secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\ troubleshooting\2024-019-0148.nh4s Comments from secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\troubleshooting\2024-019-0148. nh4s --------------------------------------------------------------------------- -SORT parameters: 2025/11/05 10:10:10 Sorted in descending order of channel Sample_Number -SORT parameters: 2025/11/05 10:47:36 Sorted in ascending order of channel Pressure -CLEAN functions: 2025/11/05 13:23:34 20 Change character data from " " to "0" in channels Flag:* -HEADER EDITS: 2025/11/05 13:24:05 Applied edit header: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\2024-019-bot-hdr.txt Channel 1: Bottle:Firing_Sequence [n/a] Name: Bottle_Number ==> Bottle:Firing_Sequence Channel 2: 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: Conductivity:Primary [S/m] Format: F11.6 ==> F10.5 Channel 11: Transmissivity [%/metre] Name: Transmissivity:1 ==> Transmissivity Channel 12: Transmissivity:Green [%/metre] Name: Transmissivity:2 ==> Transmissivity:Green Channel 10: Fluorescence:URU:Wetlabs [mg/m^3] Name: Fluorescence:URU:Wetlabs:ECO-AFL ==> Fluorescence:URU:Wetlabs Channel 8: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 Channel 22: Flag:Chlorophyll:Extracted [n/a] Units: ==> n/a Channel 19: Flag:Oxygen:Dissolved [n/a] Units: ==> n/a Channel 25: Flag:Nitrate_plus_Nitrite [n/a] Units: ==> n/a Channel 27: Flag:Silicate [n/a] Units: ==> n/a Channel 29: Flag:Phosphate [n/a] Units: ==> n/a Channel 16: Flag:Salinity:Bottle [n/a] Name: Flag:Salinity Bottle ==> Flag:Salinity:Bottle Units: ==> n/a $END *COMMENTS SBE HEADER Sea-Bird SBE 9 Data File: FileName = C:\CTD data\2024-019\2024-019-0148.hex Software Version Seasave V 7.26.7.121 Temperature SN = 2106 Conductivity SN = 2754 Number of Bytes Per Scan = 37 Number of Voltage Words = 4 Number of Scans Averaged by the Deck Unit = 1 System UpLoad Time = May 23 2024 10:01:39 NMEA Latitude = 50 27.67 N NMEA Longitude = 129 55.06 W NMEA UTC (Time) = May 23 2024 09:56:09 Store Lat/Lon Data = Append to Every Scan SBE 11plus V 5.1e number of scans to average = 1 pressure baud rate = 9600 NMEA baud rate = 4800 GPIB address = 1 advance primary conductivity 0.073 seconds advance secondary conductivity 0.073 seconds advance voltage 6 0.000 seconds advance voltage 7 0.000 seconds S> Tully: 2024-019 Station: CS00 Depth: 2172 System UTC = May 23 2024 10:01:39 # nquan = 20 # nvalues = 4197 # units = specified # name 0 = scan: Scan Count # name 1 = prDM: Pressure, Digiquartz [db] # name 2 = depSM: Depth [salt water, m] # name 3 = t090C: Temperature [ITS-90, deg C] # name 4 = t190C: Temperature, 2 [ITS-90, deg C] # name 5 = c0S/m: Conductivity [S/m] # name 6 = c1S/m: Conductivity, 2 [S/m] # name 7 = CStarTr0: Beam Transmission, WET Labs C-Star [%] # name 8 = sbeox0V: Oxygen raw, SBE 43 [V] # name 9 = altM: Altimeter [m] # name 10 = pumps: Pump Status # name 11 = dz/dtM: Descent Rate [m/s] # name 12 = sal00: Salinity, Practical [PSU] # name 13 = sal11: Salinity, Practical, 2 [PSU] # name 14 = bpos: Bottle Position in Carousel # name 15 = CStarTr1: Beam Transmission, WET Labs C-Star, 2 [%] # name 16 = flECO-AFL: Fluorescence, WET Labs ECO-AFL/FL [mg/m^3] # name 17 = sbeox0ML/L: Oxygen, SBE 43 [ml/l] # name 18 = nbf: Bottles Fired # name 19 = flag: 0.000e+00 # interval = seconds: 0.0416667 # start_time = May 23 2024 10:01:39 [System UTC, header] # bad_flag = -9.990e-29 # # # # # 2106 # 15-Feb-23 # 1 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.000 # 4.14692690e-003 # 6.30774382e-004 # 2.10717013e-005 # 2.11511943e-006 # 1000.000 # 1.00000000 # 0.0000 # # # # # # 2754 # 14-Feb-23 # 1 # # 0.0000 # 2000.0000 # 0 # # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.0 # -9.57000000e-008 # # # -1.06129987e+001 # 1.62039974e+000 # -3.87914662e-003 # 3.93074083e-004 # -9.57000000e-008 # 3.2500e-006 # # 0.00000000e+000 # # 1.00000000 # 0.00000 # # # # # # 0443 # 23-Mar-22 # -4.435292e+004 # -1.635794e-001 # 1.192740e-002 # 3.979900e-002 # 0.000000e+000 # 2.993627e+001 # -3.271008e-004 # 3.759160e-006 # 1.565300e-009 # 0.99982783 # -2.24792 # 0.000000e+000 # 1.282462e-002 # -8.599824e+000 # # # # # # 5130 # 18-Mar-23 # 1 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.000 # 4.36041069e-003 # 6.40314647e-004 # 2.15484838e-005 # 1.88531001e-006 # 1000.000 # 1.00000000 # 0.0000 # # # # # # 1766 # 18-Jan-23 # 1 # # 0.0000 # 2000.0000 # 0 # # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.00000000e+000 # 0.0 # -9.57000000e-008 # # # -4.12945799e+000 # 4.88701129e-001 # -7.05780608e-004 # 5.84314106e-005 # -9.57000000e-008 # 3.2500e-006 # # 0.00000000e+000 # # 1.00000000 # 0.00000 # # # # # # 4372 # 27-Mar-23 # 1 # # # 0.0000 # 0.0000e+000 # 0.0000 # 0.00e+000 # 0.0000 # 0.0 # # # # 5.2078e-001 # -0.5324 # -4.6090e-003 # 1.7376e-004 # -2.8493e-006 # 2.5826e+000 # 1.92634e-004 # -4.64803e-002 # 3.6000e-002 # 1.2400 #

-3.3000e-002

#

5.0000e+003

#

1.4500e+003

# # # # # # # # # # 76341 # 2024-01-30 # 15.000 # 0.000 # # # # # # 70613 # 2021-02-24 # 1.00000000 # 0.00000000 # 8620689655.17000010 # 1.00000000 # -0.11660000 # # # # # # FLRTD-2216 # 8-Mar-17 # 1.20000000e+001 # # 0.0440 # # # # # # # # # 1185DR # 2024-01-11 # 19.8801 # -1.1650 # 0.250 # # # # # # 1883DG # 2024-01-11 # 20.2896 # -0.0487 # 0.250 # # # # datcnv_date = Sep 11 2025 08:38:32, 7.26.7.129 # datcnv_in = C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\Raw C TD Data\2024-019-0148.hex C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\Raw CTD Data\ 2024-019-0148.XMLCON # datcnv_ox_hysteresis_correction = yes # datcnv_ox_tau_correction = yes # datcnv_bottle_scan_range_source = scans marked with bottle confirm bit, -5, 10 # datcnv_scans_per_bottle = 241 END* Sample_Number 411: ALL: Niskin leaking from spigot. Sample_Number 412: OXY: replicate outlier, however sample was collected from oxycline. Sample_Number 417: ALL: Niskin leaking from spigot. Sample_Number 421: OXY: zooplankton in flask, endpoint is reasonable. Sample_Number 422: OXY: zooplankton in flask, endpoint is reasonable. Sample_Number 420: CHL: sample lost during analysis. Sample_Number 421: CHL: zooplankton on filters. Sample_Number 423: NH4: Replicate discarded based on Chauvenet's criteria. Assume higher sample (423B) is contaminated reported lower concentration sample (423A). Comments from secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\troubleshooting\2024-019-0148. nh4s --------------------------------------------------------------------------- Sample_Number 423: NH4: Replicate discarded based on Chauvenet's criteria. Assume higher sample (423B) is contaminated reported lower concentration sample (423A). Analysis methods: ----------------- 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 QF2024-019_OXY*.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 within 5-15 days after collection. For details see document QF2024-019_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 QF2024-019_NUTS*.xlsx. 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 1-2 weeks after the cruise on a Turner Trilogy7200-000 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 QF 2024-019_CHL_*.xlsx Methodology sheet. Flags and comments apply to chlorophyll values only. No flags or comments are assigned for Phaeo-Pigment values 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 fluorescence signal and stability. The fluorescence is then read using a Turner Trilogy fluorometer in raw fluorescence mode. A linear calibration curve is generated from the standards, and the calibration equation then applied to sample fluorescence to determine sample concentration. For further details on methodology, see document QF 2024-019_NH4_*.xlsx All the CTD variables are averaged over the same pressures in order to have one line of data per sample. 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., Kerouel, 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 Fluorescence are nominal and unedited except that some records were removed in editing temperature and salinity. NOTE: While the SBE 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: 2024-019_Processing_Report.doc. --------------------------------------------------------------------------------- *CALIBRATION $TABLE: CALCULATED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------- -------- ---- ------ ------------ Salinity:T0:C0 PSS-78 10 -99 () (-0.1E-02 1) Salinity:T0:C0 PSS-78 10 -99 () (0 1) $END $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ------ ---- ------ ------------ Oxygen:Dissolved:SBE mL/L 10 -99 () (-0.37E-02 1) Oxygen:Dissolved:SBE mL/L 10 -99 () (0.19E-02 1) $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-- 31 !Bo Bo Pressu Depth Temperat Conductiv Salinity Oxygen Oxyge Fluores Trans Trans Numb Samp Salinity Fl Oxygen: Oxyge Fl Tempe Chloro Fl Phaeo- Nitrat Fl Silica Fl Phospha Fl Ammoni Fl !tt tt re ure: ity: :T0:C0 : n: cence: missi missi er_o le_ :Bottle ag Dissolv n: ag ratur phyll: ag Pigmen e_ ag te ag te ag um ag !~u ~u Primary Primary Dissol Disso URU: vity vity: ~bin Numb ~o ed Disso ~o e: Extrac ~a t: plus_ ~t ~i ~p ~o !en mb ved: lved: Wetlabs Green _rec er tt lved lv Draw ted ct Extrac Nitrit ri ca ha ni !ce er SBE SBE ords le ed ed ted e te te te um !-- -- ------ ------ -------- --------- -------- ------ ----- ------- ----- ----- ---- ---- -------- -- ------- ----- -- ----- ------ -- ------ ------ -- ------ -- ------- -- ------ -- *END OF HEADER 18 18 4.8 4.8 10.6870 3.51733 31.4283 6.83 298.1 1.896 44.3 65.4 54 425 -99.0000 0 -99.000 -99.0 0 -99.0 1.81 0 0.68 0.36 0 3.31 0 0.458 0 0.19 6 19 19 5.0 5.0 10.6874 3.51736 31.4282 6.83 297.8 1.951 44.5 64.7 241 426 -99.0000 0 -99.000 -99.0 0 -99.0 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 -99.00 0 17 17 5.2 5.1 10.6873 3.51739 31.4285 6.84 298.2 1.985 44.7 65.5 46 424 31.4318 0 6.819 297.4 0 11.7 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.000 0 -99.00 0 16 16 10.0 10.0 10.6863 3.51814 31.4347 6.83 298.0 2.240 44.8 65.3 241 423 31.4332 0 6.820 297.5 0 11.7 1.72 0 0.79 0.34 6 3.30 6 0.444 6 0.26 3 15 15 20.0 19.8 10.7115 3.52568 31.4838 6.85 298.6 2.276 45.3 66.5 241 422 31.4645 0 6.827 297.8 2 11.7 1.60 0 0.88 0.28 0 3.26 0 0.444 0 0.13 6 14 14 29.7 29.5 10.6528 3.52545 31.5279 6.78 295.6 1.655 46.1 67.6 241 421 31.5292 0 6.777 295.6 2 11.6 1.45 26 0.83 0.29 0 3.10 0 0.439 0 -99.00 0 13 13 50.0 49.6 8.6006 3.38961 31.9476 5.55 241.7 0.142 57.3 87.4 241 420 31.9263 0 5.493 239.4 6 9.8 -99.00 1 -99.00 13.06 0 20.10 0 1.367 0 -99.00 0 12 12 75.6 74.9 7.9539 3.40304 32.6719 4.99 217.2 0.060 58.5 90.3 241 419 32.6582 0 4.964 216.2 0 9.3 -99.00 0 -99.00 17.80 0 23.89 0 1.546 0 -99.00 0 11 11 99.9 99.0 7.4089 3.40364 33.1823 4.06 176.9 0.026 58.9 91.4 241 418 33.1849 0 4.056 176.6 0 8.8 -99.00 0 -99.00 23.89 0 32.62 0 1.900 0 -99.00 0 10 10 125.1 123.9 6.9308 3.39504 33.5384 3.46 150.5 0.022 59.0 91.6 223 417 33.5403 3 3.468 150.9 3 8.4 -99.00 0 -99.00 28.07 3 39.85 3 2.144 3 -99.00 0 9 9 149.8 148.5 6.7856 3.39927 33.7148 3.33 144.9 0.017 59.3 92.2 215 416 33.7140 0 3.334 145.1 0 8.3 -99.00 0 -99.00 29.12 0 41.32 0 2.191 0 -99.00 0 8 8 175.6 174.0 6.3291 3.36336 33.7546 3.43 149.3 0.017 59.3 92.4 202 415 33.7561 0 3.438 149.6 0 8.0 -99.00 0 -99.00 29.63 0 44.33 0 2.194 0 -99.00 0 7 7 199.8 198.0 6.1039 3.34740 33.7877 3.17 137.8 0.026 59.5 92.6 210 414 33.7894 0 3.183 138.5 0 7.9 -99.00 0 -99.00 30.95 0 48.15 0 2.283 0 -99.00 0 6 6 250.8 248.4 5.5375 3.30368 33.8350 2.45 106.6 0.020 59.6 92.7 234 413 33.8360 0 2.478 107.8 0 7.5 -99.00 0 -99.00 34.83 0 59.29 0 2.564 0 -99.00 0 5 5 300.0 297.2 5.3409 3.29407 33.8988 1.78 77.6 0.022 59.6 92.7 221 412 33.8975 0 1.850 80.5 36 7.5 -99.00 0 -99.00 37.67 0 66.66 0 2.777 0 -99.00 0 4 4 400.8 396.9 4.7172 3.25222 33.9991 1.04 45.4 0.021 60.0 93.6 227 411 33.9990 3 1.101 47.9 3 7.1 -99.00 0 -99.00 41.28 3 85.33 3 3.067 3 -99.00 0 3 3 500.0 495.1 4.4798 3.24271 34.0808 0.68 29.7 0.028 60.1 93.8 239 410 34.0811 0 0.729 31.7 0 6.9 -99.00 0 -99.00 42.61 0 95.97 0 3.182 0 -99.00 0 2 2 750.3 742.5 3.7860 3.20712 34.2513 0.27 11.6 0.024 60.2 93.9 238 409 34.2517 6 0.330 14.4 0 6.6 -99.00 0 -99.00 44.26 0 121.72 0 3.324 0 -99.00 0 1 1 1000.4 989.4 3.3913 3.19213 34.3569 0.20 8.9 0.029 60.2 93.9 241 408 34.3569 0 0.256 11.1 0 6.5 -99.00 0 -99.00 44.74 0 136.34 0 3.374 0 -99.00 0