*2025/11/05 13:24:05.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/19 23:22:31.000 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 : 2E56F375 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 5.087 765.954 4 Depth metres 5.044 758.081 5 Temperature:Primary 'deg C (ITS90)' 4.1299 11.1905 6 Conductivity:Primary S/m 3.24043 3.603154 7 Salinity:T0:C0 PSS-78 31.8411 34.2793 8 Oxygen:Dissolved:SBE mL/L 0.188 6.615 9 Oxygen:Dissolved:SBE umol/kg 8.2 288.4 10 Fluorescence:URU:Wetlabs mg/m^3 0.16E-01 2.001 11 Transmissivity %/metre 42.3 59.7 12 Transmissivity:Green %/metre 59.8 93.1 13 Number_of_bin_records n/a 90 241 14 Sample_Number n/a 255 273 15 Salinity:Bottle PSS-78 34.1435 34.2713 16 Flag:Salinity:Bottle n/a 17 Oxygen:Dissolved mL/L 0.256 6.585 18 Oxygen:Dissolved umol/kg 11.1 287.2 19 Flag:Oxygen:Dissolved n/a 20 Temperature:Draw 'deg C (ITS90)' 6.4 12 21 Chlorophyll:Extracted mg/m^3 0.34 1.43 22 Flag:Chlorophyll:Extracted n/a 23 Phaeo-Pigment:Extracted mg/m^3 0.39 0.65 24 Nitrate_plus_Nitrite umol/L 0.9E-01 45.36 25 Flag:Nitrate_plus_Nitrite n/a 26 Silicate umol/L 4.63 115.66 27 Flag:Silicate n/a 28 Phosphate umol/L 0.356 3.314 29 Flag:Phosphate n/a 30 Ammonium umol/L 0 0 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\2024-019-0091.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 : LD08 EVENT NUMBER : 91 LATITUDE : 48 39.17000 N ! (deg min) LONGITUDE : 126 23.33000 W ! (deg min) WATER DEPTH : 766 ALTIMETER (M) : 9.51 ! 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 : 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 08:54:50 4294 4294 CLEAN 5.3 2025/09/11 08:57:47 4294 4294 ADDSAMP 3.6 2025/09/11 09:26:45 4294 4294 BINAVE 4.2.1 2025/09/11 09:29:14 4294 19 MERGE 3.6 2025/09/11 13:12:40 19 19 CLEAN 5.3 2025/09/11 13:38:35 19 19 CALIB 12.1 2025/10/29 14:03:32 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 09:14:18 19 19 CHGUNITS 3.2 2025/10/31 09:15:35 19 19 REORDER 1.3.1 2025/10/31 09:16:09 ? ? REMOVECH 8.2 2025/11/05 10:02:02 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 10:47:35 19 19 REORDER 1.3.1 2025/11/05 11:57:09 ? ? CLEAN 5.3 2025/11/05 13:23:35 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 156 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 13:12:40 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- 0091.samavg Secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\2024-019- 0091.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 14:03:32 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 10:02:02 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\2024-019-0091.mrgREMs Secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\ troubleshooting\2024-019-0091.nh4s Comments from secondary file: C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\IOSShell\troubleshooting\2024-019-0091. nh4s --------------------------------------------------------------------------- -SORT parameters: 2025/11/05 10:10:10 Sorted in descending order of channel Sample_Number -SORT parameters: 2025/11/05 10:47:35 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\2024-019-0091.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 19 2024 23:22:31 NMEA Latitude = 48 39.17 N NMEA Longitude = 126 23.33 W NMEA UTC (Time) = May 19 2024 23:13:28 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: LD08 Depth: 766 System UTC = May 19 2024 23:22:31 # nquan = 20 # nvalues = 4294 # 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 19 2024 23:22:31 [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 08:37:35, 7.26.7.129 # datcnv_in = C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\Raw C TD Data\2024-019-0091.hex C:\Users\BEDARDJ\Desktop\Data Processing\CTD-2024-019\Bottle\Raw CTD Data\ 2024-019-0091.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 267: CHL: duplicate lost. Sample_Number 269: CHL: 269B - filtered several hours after collection, agrees well with duplicate (CV%<2). Sample_Number 270: CHL: 270B - filter fell on floor, pigment side up, and agrees well with duplicate (CV%<3). Sample_Number 271: CHL: filtered several hours after collection, duplicate lost. 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 19 19 5.1 5.0 11.1903 3.60314 31.8412 6.62 288.4 1.598 42.3 59.8 241 273 -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 18 18 5.1 5.0 11.1905 3.60314 31.8411 6.61 288.3 1.578 42.3 59.8 107 272 -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 5.2 11.1905 3.60315 31.8411 6.61 288.3 1.577 42.3 59.8 90 271 -99.0000 0 6.585 287.2 0 12.0 1.43 4 0.55 0.13 0 4.71 0 0.358 0 0.00 6 16 16 10.5 10.4 11.1722 3.60180 31.8414 6.61 288.3 1.847 42.4 59.9 241 270 -99.0000 0 6.580 286.9 0 11.9 1.37 26 0.53 0.17 0 4.67 0 0.356 0 0.00 6 15 15 20.3 20.1 11.1339 3.59884 31.8414 6.60 287.7 2.001 43.3 61.2 241 269 -99.0000 0 6.564 286.2 0 12.0 1.38 36 0.65 0.09 0 4.63 0 0.356 0 0.00 6 14 14 30.9 30.6 11.0522 3.59259 31.8463 6.56 285.9 1.910 46.4 65.8 241 268 -99.0000 0 6.535 285.0 6 11.8 1.33 6 0.62 0.16 0 4.82 0 0.368 0 -99.00 0 13 13 50.4 49.9 9.1094 3.47113 32.3345 6.42 279.7 0.531 57.3 88.8 241 267 -99.0000 0 6.390 278.5 0 10.2 0.34 2 0.39 6.74 0 6.92 0 0.838 0 -99.00 0 12 12 75.8 75.1 8.3430 3.43905 32.6914 5.34 232.5 0.206 58.9 91.4 241 266 -99.0000 0 5.320 231.7 0 9.5 -99.00 0 -99.00 15.47 0 16.95 0 1.327 0 -99.00 0 11 11 100.6 99.7 7.8746 3.45743 33.3161 3.83 166.6 0.023 59.0 91.8 225 265 -99.0000 0 3.803 165.6 0 9.2 -99.00 0 -99.00 24.79 0 31.02 0 1.837 0 -99.00 0 10 10 126.1 125.0 7.3339 3.44330 33.6722 3.21 139.6 0.016 59.5 92.5 189 264 -99.0000 0 3.231 140.6 0 8.7 -99.00 0 -99.00 29.21 6 37.74 6 2.112 6 -99.00 0 9 9 149.9 148.6 7.1391 3.43738 33.7863 2.90 126.0 0.019 59.5 92.6 212 263 -99.0000 0 2.910 126.6 0 8.5 -99.00 0 -99.00 30.83 0 42.11 0 2.180 0 -99.00 0 8 8 174.4 172.9 6.6482 3.39900 33.8351 2.70 117.5 0.019 59.6 92.7 229 262 -99.0000 0 2.707 117.8 0 8.1 -99.00 0 -99.00 32.51 0 47.51 0 2.297 0 -99.00 0 7 7 200.5 198.7 6.4355 3.38703 33.9002 2.20 95.8 0.018 59.6 92.8 239 261 -99.0000 0 2.224 96.8 0 8.0 -99.00 0 -99.00 34.93 0 53.62 0 2.433 0 -99.00 0 6 6 249.8 247.6 6.2236 3.37686 33.9733 1.65 71.6 0.021 59.7 93.1 233 260 -99.0000 0 1.698 73.9 0 7.9 -99.00 0 -99.00 37.26 6 59.78 6 2.678 6 -99.00 0 5 5 300.9 298.2 5.6930 3.33291 33.9850 1.37 59.5 0.017 59.4 92.3 217 259 -99.0000 0 1.404 61.1 0 7.4 -99.00 0 -99.00 39.29 0 68.47 0 2.816 0 -99.00 0 4 4 400.5 396.8 5.2129 3.30152 34.0628 0.87 37.7 0.026 59.2 91.9 238 258 -99.0000 0 0.901 39.2 6 7.0 -99.00 0 -99.00 41.66 0 81.93 0 2.993 0 -99.00 0 3 3 501.9 497.0 4.7997 3.27635 34.1428 0.47 20.6 0.021 59.7 93.0 235 257 34.1435 0 0.538 23.4 0 6.7 -99.00 0 -99.00 43.38 0 94.24 0 3.176 0 -99.00 0 2 2 751.6 743.9 4.1683 3.24243 34.2704 0.19 8.4 0.028 59.4 92.5 237 256 34.2713 0 0.259 11.3 0 6.4 -99.00 0 -99.00 44.85 0 114.31 0 3.314 0 -99.00 0 1 1 766.0 758.1 4.1299 3.24043 34.2793 0.19 8.2 0.033 58.5 90.8 241 255 -99.0000 0 0.256 11.1 0 6.5 -99.00 0 -99.00 45.36 0 115.66 0 3.280 0 -99.00 0