*2019/11/21 11:34:49.05 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2018/06/10 17:37:44.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 17 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 97E4824F NUMBER OF CHANNELS : 27 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- -------------------------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 315 331 2 Bottle_Number n/a 1 17 3 Bottle:Firing_Sequence n/a 1 17 4 Pressure:CTD dbar 1.8 300.5 5 Temperature:CTD deg_C_(ITS90) 5.1875 10.6371 6 Salinity:CTD PSS-78 32.4105 33.9015 7 Sigma-t:CTD kg/m^3 24.8495 26.8086 8 Transmissivity:CTD %/m 48.2 59.5 9 Oxygen:Dissolved:CTD:Volume ml/l 2.01 7.02 10 Oxygen:Dissolved:CTD:Mass µmol/kg 87.2 305.8 11 Fluorescence:CTD:Seapoint mg/m^3 0.86E-01 3.437 12 PAR:CTD µE/m^2/sec 0 1300.2 13 Nitrate_plus_Nitrite:Bottle µmol/l 3.08 38.26 14 Flag:Nitrate_plus_Nitrite:Bottle n/a 15 Phosphate:Bottle µmol/l 0.606 2.719 16 Flag:Phosphate:Bottle n/a 17 Silicate:Bottle µmol/l 0.39 69.29 18 Flag:Silicate:Bottle n/a 19 Chlorophyll:Extracted:Bottle mg/m^3 0.2E-01 1.26 20 Flag:Chlorophyll:Extracted:Bottle n/a 21 Phaeo-Pigment:Extracted:Bottle mg/m^3 0.6E-01 0.37 22 Dimethyl_Sulphide:Bottle nmol/l 0 9.16 23 Flag:Dimethyl_Sulphide:Bottle n/a 24 Dimethylsulfoniopropionate_Dissolved:Bottle nmol/l 0 15 25 Flag:Dimethylsulfoniopropionate_Dissolved:Bottle n/a 26 Dimethylsulfoniopropionate_Total:Bottle nmol/l -99 -99 27 Flag:Dimethylsulfoniopropionate_Total:Bottle n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I 0 2 -99 ' ' 3 I I 0 3 -99 ' ' 3 I I 0 4 -99 ' ' 7 F ' ' 1 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 9 F ' ' 4 7 -99 ' ' 9 F R4 4 8 -99 ' ' 6 F ' ' 1 9 -99 ' ' 7 F ' ' 2 10 -99 ' ' 6 F ' ' 1 11 -99 ' ' 8 F ' ' 3 12 -99 ' ' 7 F ' ' 1 13 -99 ' ' 7 F R4 2 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 8 F R4 3 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 7 F R4 2 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 7 F R4 2 22 -99 ' ' 7 F R4 2 23 0 ' ' 3 NQ C ' ' 24 -99 ' ' 7 F R4 2 25 0 ' ' 3 NQ C ' ' 26 -99 ' ' 7 F R4 2 27 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2018-026 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 : 49 LATITUDE : 49 16.92000 N ! (deg min) LONGITUDE : 134 39.89000 W ! (deg min) WATER DEPTH : 3635 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS Samples Number 317, 318, 324, 329, 331: DMSP-T:Bottle - elevated results due to contamination. Sample Number 326: DMSP-D:Bottle and DMSP-T:Bottle - elevated results due to contamination. Analysis methods: ----------------- 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 4 to 25 days after collection. For details on duplicate analysis see file 2018-026_SAL.pdf. 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 on duplicate analysis see file 2018-026_OXY.pdf. Nutrient samples were collected in plastic tubes. One set of samples was collected and immediately quick frozen in aluminum blocks stored in -20 freezer. Another set of samples from 400 dbar and deeper (to be used for silicate analysis) was collected and stored at 4C in the dark. All samples were returned to IOS for analysis using an Astoria analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke and Whitney. For precision and duplicate analysis see file 2018-026_NUT.pdf. Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -80C prior to analysis. Samples were extracted in 90% acetone at -20C for 24 hours and analyzed on a Turner 10AU fluorometer calibrated with commercially pure chlorophyll a standard (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen et al 1965). Chlorophyll samples were analyzed at IOS ~4 weeks after the cruise. When duplicate samples were collected the average of two samples is reported. Variability is assessed as the CV% (std dev / mean*100). Flags and comments apply to chlorophyll values only. No flags or comments are assigned for Phaeopigment values. Precision Statement: Chlorophyll values ranged from 0.02-8.79 µg/l. Average %CV for this cruise was 4.17% with 4 out of 39 duplicate pairs having a CV > 10% and 0 out of 39 duplicate pairs having a CV > 30%. Our average dataset %CV is 3.73% for 2013 - 2017 so the overall quality of this dataset is very good. For details on duplicates see file 2018-026_CHL.pdf. DMS samples were collected in 250 ml ground glass stoppered bottles and stored in a fridge, in the dark and removed one at a time before analysis. A sample was loaded onto the stripper and purged with UHP Nitrogen for 10 minutes at ~100 ml/min. The DMS was extracted from the water and absorbed on to a Tenax TA trap kept at -80C. The trap was subsequently desorbed at 100C (with a Dewar containing boiling water) onto a Choromasorb 330 column which eluted onto a Flame Photometric Detector (FPD). All samples were run as soon as possible after being collected. The minimum detectable level for DMS is 0.10 nmol/l, so “0” values should be interpreted as < 0.1 nmol/l. For more details see file 2018-026_DMS_report.pdf and for duplicate analysis see 2018-026_DMS.pdf. DMSP-D: 20-75 ml of seawater were drained from the Niskin into a magnetic filtration funnel containing a 0.7 µm GF/F filter. The first 3.5 ml from the funnel were collected in a polypropylene tube containing 50 µl of a 50% sulphuric acid solution. A new funnel and filter were used for each sample. DMPS-T: 3.5 ml of seawater were collected directly from the Niskin into a polypropylene tube containing 50 µl of a 50% sulphuric acid solution. DMSP-D and DMSP-T: Samples were stored in the dark at 4 degrees C for a minimum of 24 hours. They were hydrolized and analyzed later at the Institute of Ocean Sciences. The minimum detectable level is 0.1 nmol/l, so “0” values should be interpreted as < 0.1 nmol/l. DMSP data are limited to 2 significant figures. For more details see file 2018-026_DMS_report.pdf and for duplicate analysis see 2018-026_DMSP.pdf. References: 1. 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. 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. 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. Data Processing Notes: ---------------------- Transmissivity, Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. NOTE: While the Fluorescence:CTD 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. Oxygen:Dissolved:CTD was calibrated using the method described in Sea-Bird Application Note #64-2, June 2012 revision (Sea-Bird_64-2_Jun2012.pdf), except that a small offset in the fit was allowed. For details on the processing see the report: 2018-026-proc.pdf. $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 !-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 !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores PAR: Nitrat Fl Phospha Fl Silica Fl Chloro Fl Phaeo- Dimeth Fl Dimeth Fl Dimeth Fl !le_ tt tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: CTD e_plus ag te: ag te: ag phyll: ag Pigmen yl_ ag ylsulf ag ylsulf ag !Numb ~u ~u vity: lved: solve CTD: _Nitri ~o Bottle ~o Bottle ~o Extrac ~o t:Extr Sulphi ~o ~_Diss ~o ~nate_ ~o !er mb en CTD CTD: d:CTD Seapoin te: tt tt tt ted: tt acted: de: tt olved: tt Total: tt ! er ce Volume :Mass t Bottle le le le Bottle le Bottle Bottle le Bottle le Bottle le !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- ------ ------ -- ------- -- ------ -- ------ -- ------ ------ -- ------ -- ------ -- *END OF HEADER 331 17 17 1.8 10.6371 32.4113 24.8495 50.6 6.88 299.5 0.303 1300.2 3.20 0 0.613 0 0.48 0 0.80 6 0.07 4.13 0 4.70 0 -99.00 5 330 16 16 5.3 10.5653 32.4111 24.8617 49.5 6.88 299.7 0.513 675.6 -99.00 0 -99.000 0 -99.00 0 0.88 0 0.09 -99.00 0 -99.00 0 -99.00 0 329 15 15 5.3 10.5811 32.4105 24.8585 49.3 6.88 299.8 0.474 683.0 3.16 0 0.618 0 0.39 0 -99.00 0 -99.00 6.52 0 1.90 0 -99.00 5 328 14 14 10.3 10.5288 32.4116 24.8684 49.3 6.90 300.7 0.648 547.9 3.13 0 0.617 0 0.60 0 0.80 0 0.08 7.21 0 -99.00 0 -99.00 0 327 13 13 15.2 10.3267 32.4179 24.9076 51.6 6.95 302.6 0.895 310.5 3.09 0 0.606 0 0.44 0 0.57 0 0.08 8.11 0 -99.00 0 -99.00 0 326 12 12 20.4 10.2936 32.4194 24.9144 50.5 6.94 302.3 1.399 170.7 3.08 0 0.631 0 0.39 0 0.66 0 0.09 8.24 6 15.00 5 -99.00 5 325 11 11 25.0 10.2456 32.4216 24.9242 49.8 6.93 301.9 2.148 113.8 3.12 6 0.637 6 0.43 6 0.76 6 0.10 9.16 0 -99.00 0 -99.00 0 324 10 10 30.4 9.9548 32.4218 24.9728 48.2 6.98 303.9 3.437 59.4 3.86 0 0.701 0 1.41 0 1.26 0 0.24 7.37 0 12.00 0 -99.00 5 323 9 9 40.1 8.1359 32.4400 25.2700 54.1 7.02 305.8 1.499 29.1 6.69 0 0.901 0 6.08 0 0.55 0 0.37 1.45 0 -99.00 0 -99.00 0 322 8 8 50.3 7.8082 32.4482 25.3236 56.1 6.92 301.4 0.829 10.1 7.39 0 0.948 0 7.06 0 0.41 0 0.33 0.80 0 -99.00 0 -99.00 0 321 7 7 60.2 7.5250 32.4650 25.3767 57.1 6.81 296.4 0.601 5.1 8.65 0 1.010 0 8.39 0 0.28 0 0.26 -99.00 0 -99.00 0 -99.00 0 320 6 6 75.4 7.2533 32.5776 25.5026 58.1 6.40 278.4 0.366 1.8 12.53 0 1.413 0 13.21 0 0.15 0 0.15 0.31 0 -99.00 0 -99.00 0 319 5 5 100.4 7.0924 33.3381 26.1231 59.1 4.45 193.4 0.124 0.5 33.43 0 2.383 0 54.32 0 0.02 0 0.06 0.00 0 -99.00 0 -99.00 0 318 4 4 150.4 6.8059 33.7766 26.5072 59.4 3.25 141.5 0.104 0.0 33.32 0 2.380 0 54.35 0 -99.00 0 -99.00 0.00 0 3.10 0 -99.00 5 317 3 3 200.8 6.1661 33.8638 26.6597 59.5 2.72 118.5 0.099 0.0 33.39 0 2.389 0 54.34 0 -99.00 0 -99.00 0.00 0 0.00 0 -99.00 5 316 2 2 249.8 5.6488 33.8820 26.7384 59.5 2.36 102.8 0.088 0.0 35.74 0 2.550 0 61.70 0 -99.00 0 -99.00 -99.00 0 -99.00 0 -99.00 0 315 1 1 300.5 5.1875 33.9015 26.8086 59.5 2.01 87.2 0.086 0.0 38.26 0 2.719 0 69.29 0 -99.00 0 -99.00 0.00 0 -99.00 0 -99.00 0