*2023/11/03 13:18:31.41 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/05/06 06:09:05.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 24 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 7CA71411 NUMBER OF CHANNELS : 14 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- --------------------------- --------------- -------------- -------------- 1 Bottle_Number n/a 1 24 2 Bottle:Firing_Sequence n/a 1 24 3 Pressure decibar 25.81 101.42 4 Depth metres 25.594 100.533 5 Temperature:Primary 'deg C (ITS90)' 6.9959 7.8029 6 Transmissivity %/metre 64.5 71.1 7 Transmissivity:Green %/metre 88 99.4 8 Fluorescence:URU:Seapoint mg/m^3 0.111 1.051 9 Salinity:T0:C0 PSS-78 32.3424 33.1367 10 Oxygen:Dissolved:SBE mL/L 4.525 7.027 11 Oxygen:Dissolved:SBE umol/kg 197 306.1 12 Conductivity:Primary S/m 3.292698 3.362998 13 Number_of_bin_records n/a 84 241 14 Sample_Number n/a 343 366 $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 ' ' 10 F ' ' 5 13 -99 ' ' 5 I I 0 14 -99 ' ' 5 I I 0 $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 : 2023-066 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : P16 EVENT NUMBER : 54 LATITUDE : 49 17.02000 N ! (deg min) LONGITUDE : 134 39.98000 W ! (deg min) WATER DEPTH : 3620 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 1515 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 Fluorometer:Seapoint ' ' 3640 'Oxygen:SBE 43' ' ' 1119 PAR/Irradiance:Biospherical/Licor ' ' 70613 Altimeter ' ' ' ' '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 2023/08/25 15:50:35 3600 3600 CLEAN 5.3 2023/08/25 17:36:34 3600 3600 CTDEDIT 5.4.0 2023/08/28 09:35:06 3600 3600 ADDSAMP 3.6 2023/08/28 10:58:53 3600 3600 BINAVE 4.2.1 2023/08/28 14:39:00 3600 24 MERGE 3.6 2023/11/03 10:02:41 24 24 CLEAN 5.3 2023/11/03 10:02:48 24 24 CALIB 12.1 2023/11/03 10:03:56 24 24 CALIB 12.1 2023/11/03 10:04:11 24 24 SORT 3.6 2023/11/03 10:04:21 24 24 REMOVECH 8.2 2023/11/03 10:04:35 24 24 CHGUNITS 3.2 2023/11/03 10:04:45 24 24 CHGUNITS 3.2 2023/11/03 10:04:57 24 24 REORDER 1.3.1 2023/11/03 10:05:13 ? ? HDREDIT2 3.2 2023/11/03 13:18:31 ? ? $END $REMARKS -CLEAN functions: 2023/08/25 17:36:31 20 Reset #RECS, MIN & MAX values in header. Interpolation by Channel 1: Scan_Number [n/a] in Pressure Set event to last 4 characters of file name -CTDEDIT v5.4.0 2023/08/28 09:35:06 25 changes in channel Salinity:T0:C0 8 changes in channel Salinity:T1:C1 3600 changes in channel Pressure -The following ADDSAMP parameters were used: Sample Number Lookup File: D:\Telework\2023-066\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: 2023/11/03 10:02:41 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, Flag:Dimethyl_Sulphide, Dimethylsulfoniopropionate_Dissolved, Flag:Dimethylsulfoniopropionate_Dissolved, Dimethylsulfoniopropionate_Total, Flag:Dimethylsulfoniopropionate_Total Primary file : E:\Telework\2023-066\Processing\hydro\2023-066-0054.samavg Secondary file: E:\Telework\2023-066\Processing\hydro\2023-066-0054.mrgcln1s 24 secondary records matched to primary records. Comments from secondary file: E:\Telework\2023-066\Processing\hydro\2023-066-0054.mrgcln1s ------------------------------------------------------------ -CLEAN functions: 2023/11/03 10:01:56 20 Reduce header to sections: FIL HIS COM Remarks removed from kept sections. Reset #RECS, MIN & MAX values in header. -SORT parameters: 2023/11/03 10:02:10 Sorted in ascending order of channel Bottle_Number -CLEAN functions: 2023/11/03 10:02:46 20 Reset #RECS, MIN & MAX values in header. Set event to last 4 characters of file name Remove Sea-Bird comments from the header. -CALIB parameters: 2023/11/03 10:03:56 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2023-066\Processing\doc\2023-066-recal-SIL.CCF WARNING: No calibration done on file E:\Telework\2023-066\Processing\hydro\2023-066-0054.mrgcorsil -CALIB parameters: 2023/11/03 10:04:11 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = E:\Telework\2023-066\Processing\doc\2023-066-recal1.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Pressure decibar 10 0.5000000E+00 0.1000000E+01 5 Depth:Salt_Water metres 10 0.5000000E+00 0.1000000E+01 20 Oxygen:Dissolved:SBE mL/L 10 0.1130000E-01 0.1022700E+01 -SORT parameters: 2023/11/03 10:04:21 Sorted in ascending order of channel Pressure [decibar] -REMOVECH 2023/11/03 10:04:35 The following CHANNEL(S) were removed: Scan_Number Temperature:Secondary [deg C (ITS90)] Conductivity:Secondary [S/m] Oxygen:Voltage:SBE [volts] PAR [uE/m^2/sec] Descent_Rate [m/s] Status:Pump Altimeter [metres] 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 Salinity reference channel: Salinity:T0:C0 - No units changed -HEADER EDITS: 2023/11/03 13:18:31 Applied edit header: E:\Telework\2023-066\Processing\doc\HYDRO\2023-066-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: F11.2 ==> 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 10: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 Channel 13: Number_of_bin_records [n/a] Pad: ' ' ==> -99 Channel 12: Conductivity:Primary [S/m] Format: F11.6 ==> F10.5 $END *COMMENTS Remarks from CTDEDIT: CTDEDIT was used to clean few spikes in both salinity channels. 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 2.5 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 see worksheet “CV%” in file QF2023-066_CHL*.xlsx. 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 duplicate analysis, see document QF2023-066OXY*.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 18 - 34 days after collection. For details including a duplicate analysis, see document QF2023-066SAL*.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 QF2023-066nuts*.xlsx. The minimum detectable level for DMS is 0.1 nM, so “0” values should be interpreted as <0.1 nM. DMS data are limited to 2 significant figures. Unless otherwise indicated the % relative difference between duplicates is <20%. For more details including method, raw data and duplicates, see document "DMS Summary (2023-066).xls”. Detailed notes on analysis are in file 2023-066 DMS report*.doc. 7890 DMS System was used for all stations except P26 for which the new 8890 System was used. The minimum detectable level for DMSP is 0.1 nM, so “0” values should be interpreted as <0.1 nM. DMSP data are limited to 2 significant figures. Unless otherwise indicated the % relative difference between duplicates is <20%. For more details including method, raw data and duplicates, see document "DMSP 2023-066 Summary*.xls”. Detailed notes on analysis are in file 2023-066 DMS report*.doc. 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. Two CTDs were used for this cruise (Events #1-58 and #60-153). The CTD data were affected by frequent pressure spikes that were not resolved by replacing the CTD with a new one. Most large spikes were below 1000db and were removed in processing. None were noted during stops for bottles. For Events #1-39 the configuration file was set as follows: Number of Scans Averaged by the Deck Unit = 24 Normally each scan is recorded individually and averaging is not done until after fine-tuning of settings for alignment and removal of bad records. The quality of CTD data from casts #1-39 is considered lower than usual. Fluorescence data were removed from Events #26-39 due to fluorometer malfunction. A new fluorometer was installed for Events #41-153. 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: 2023-066_Processing_Report.doc. --------------------------------------------------------------------------------- *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- --------- ---- ------ ------------ Pressure decibar 10 -99 () (0.5 1) Depth:Salt_Water metres 10 -99 () (0.5 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- !Bo Bo Pressu Depth Temperat Trans Trans Fluores Salinity Oxygen Oxyge Conductiv Numb Samp !tt tt re ure: missi missi cence: :T0:C0 : n: ity: er_o le_ !~u ~u Primary vity vity: URU: Dissol Disso Primary ~bin Numb !mb en Green Seapoin ved: lved: _rec er !er ce t SBE SBE ords !-- -- ------ ------ -------- ----- ----- ------- -------- ------ ----- --------- ---- ---- *END OF HEADER 23 23 25.8 25.6 7.8029 64.5 88.0 1.011 32.3424 7.03 306.1 3.35672 138 365 24 24 26.0 25.7 7.7968 64.5 88.4 1.051 32.3427 7.02 305.9 3.35622 241 366 22 22 26.4 26.2 7.7978 64.5 88.5 0.989 32.3425 7.03 306.1 3.35626 93 364 17 17 40.0 39.7 7.3716 66.9 92.1 0.856 32.3507 6.98 304.1 3.32072 98 359 14 14 40.0 39.7 7.3848 66.8 91.8 0.833 32.3501 6.98 304.0 3.32168 90 356 19 19 40.2 39.9 7.3985 66.9 92.2 0.837 32.3500 6.98 304.0 3.32301 122 361 15 15 40.3 40.0 7.3648 66.9 92.1 0.816 32.3512 6.97 303.8 3.32022 97 357 21 21 40.4 40.1 7.4050 66.8 92.1 0.837 32.3499 6.98 304.0 3.32358 241 363 20 20 40.5 40.2 7.3959 66.9 92.2 0.906 32.3504 6.98 304.1 3.32284 155 362 16 16 40.6 40.2 7.3782 67.0 92.1 0.795 32.3505 6.98 303.9 3.32133 99 358 18 18 40.7 40.4 7.3852 67.0 92.3 0.823 32.3504 6.98 304.1 3.32183 97 360 13 13 41.0 40.7 7.3628 66.9 92.3 0.858 32.3515 6.97 303.6 3.32011 84 355 7 7 60.2 59.7 7.0227 69.9 97.3 0.355 32.3637 6.89 300.2 3.29270 159 349 9 9 60.5 60.0 7.0228 69.8 97.1 0.366 32.3638 6.89 300.3 3.29273 125 351 11 11 60.7 60.2 7.0230 69.8 97.2 0.363 32.3637 6.89 300.3 3.29274 151 353 5 5 60.8 60.2 7.0225 69.7 97.1 0.362 32.3638 6.89 300.2 3.29271 219 347 12 12 60.8 60.3 7.0230 69.8 97.1 0.368 32.3637 6.90 300.4 3.29274 241 354 4 4 60.9 60.4 7.0223 69.7 96.4 0.381 32.3638 6.89 300.2 3.29270 98 346 10 10 61.3 60.8 7.0229 69.8 96.9 0.385 32.3637 6.90 300.4 3.29276 136 352 8 8 61.4 60.9 7.0227 69.9 97.2 0.351 32.3637 6.89 300.3 3.29276 114 350 6 6 61.7 61.2 7.0224 69.9 97.2 0.352 32.3637 6.90 300.4 3.29274 114 348 3 3 101.2 100.3 6.9981 71.1 99.3 0.111 33.1349 4.53 197.1 3.36299 241 345 1 1 101.3 100.4 6.9966 71.0 99.4 0.120 33.1364 4.53 197.2 3.36300 241 343 2 2 101.4 100.5 6.9959 71.0 99.4 0.115 33.1367 4.53 197.0 3.36296 206 344