*2019/03/11 13:51:54.58 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2018/09/16 22:55:22.000 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 : 55CE3DCF NUMBER OF CHANNELS : 22 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 362 385 2 Bottle_Number n/a 1 24 3 Bottle:Firing_Sequence n/a 1 24 4 Pressure:CTD dbar 5.7 3685.3 5 Temperature:CTD deg_C_(ITS90) 1.5643 15.8036 6 Salinity:CTD PSS-78 32.3016 34.6677 7 Sigma-t:CTD kg/m^3 23.7442 27.7643 8 Transmissivity:CTD %/m 52.3 60.1 9 Oxygen:Dissolved:CTD:Volume ml/l 0.31 6.97 10 Oxygen:Dissolved:CTD:Mass µmol/kg 13.7 303.4 11 Fluorescence:CTD:Seapoint mg/m^3 0.74E-01 1.352 12 Salinity:Bottle PSS-78 32.3056 34.6655 13 Flag:Salinity:Bottle n/a 14 Oxygen:Dissolved:Bottle:Volume ml/l 0.306 6.98 15 Oxygen:Dissolved:Bottle:Mass µmol/kg 13.3 304 16 Flag:Oxygen:Dissolved:Bottle n/a 17 Nitrate_plus_Nitrite:Bottle µmol/l 0 45.3 18 Flag:Nitrate_plus_Nitrite:Bottle n/a 19 Phosphate:Bottle µmol/l 0.37 3.21 20 Flag:Phosphate:Bottle n/a 21 Silicate:Bottle µmol/l 0.4 179.6 22 Flag:Silicate: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 ' ' 9 F R4 4 13 0 ' ' 3 NQ C ' ' 14 -99 ' ' 8 F R4 3 15 -99 ' ' 6 F ' ' 1 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 8 F R4 3 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 7 F R4 2 22 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2018-040 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 : 53 LATITUDE : 49 16.96000 N ! (deg min) LONGITUDE : 134 39.95000 W ! (deg min) WATER DEPTH : 3634 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0585 LOCATION : Mid-ship ! custom item *COMMENTS Sample Number 362: Bottle Number 1 - Niskin valve was open. Sample Number 364: SAL:Bottle - sample planned but not found, likely not collected. Sample Number 369: OXY:Bottle - sample over-titrated. Sample Number 370: Bottle Number 9 - very slow drip from Niskin spigot. Sample Number 379: Bottle Number 18 - Niskin had a slow drip; OXY:Bottle - both dupliate samples over-titrated. Weird first titrations. Sample Number 380: OXY:Bottle - doliolid inside sample. Samples Number 362 to 373: SIL:Bottle - cool samples mistakenly frozen, thawed, sat for 2 days at 4C and then analyzed. 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. 14 samples were analyzed at the Institute of Ocean Sciences in a temperature- controlled lab on a Guildline 8400B Salinometer (#68572) about 4 weeks after collection. The salinometer then malfunctioned so the remainder of the samples were analyzed off-site at AML using another Guildline 8400B Salinometer. Those samples were analyzed between 61 and 76 days after collection. No details are available regarding the conditions under which the samples were analyzed at AML or the condition of the instrument itself. All samples analyzed on instrument #68572 are flagged 2 with a comment. For details on duplicate analysis see file 2018-040_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 2018-040_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 2018-040_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 ~6 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 0.02-4.76 µg/l in 152 samples. Average %CV for this cruise was 4.06% with 2 out of 42 duplicate pairs having a CV > 10% and 0 out of 42 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 2018-040_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 2018-040_DMS_report.pdf and for duplicate analysis see 2018-040_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 2018-040_DMS_report.pdf and for duplicate analysis see 2018-040_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: 2018-040-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 !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl Oxygen: Oxyge Fl Nitrat Fl Phospha Fl Silica Fl !le_ tt tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: :Bottle ag Dissolv n:Dis ag e_plus ag te: ag te: ag !Numb ~u ~u vity: lved: solve CTD: ~o ed: ~ed:B ~o _Nitri ~o Bottle ~o Bottle ~o !er mb en CTD CTD: d:CTD Seapoin tt Bottle: ottle tt te: tt tt tt ! er ce Volume :Mass t le Volume :Mass le Bottle le le le !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- ------- ----- -- ------ -- ------- -- ------ -- *END OF HEADER 385 24 24 5.7 15.8036 32.3029 23.7442 52.8 5.85 255.0 0.789 32.3056 0 5.823 253.9 0 0.00 0 0.370 0 0.40 0 384 23 23 10.1 15.8034 32.3031 23.7444 52.4 5.84 254.6 0.763 -99.0000 0 5.820 253.8 6 0.00 0 0.370 0 0.40 0 383 22 22 25.0 15.7274 32.3016 23.7601 52.3 5.80 253.0 0.927 -99.0000 0 5.819 253.5 0 0.10 0 0.370 0 0.40 0 382 21 21 50.4 9.1712 32.4364 25.1105 54.2 6.97 303.4 1.352 -99.0000 0 6.980 304.0 0 4.90 0 0.840 0 2.50 0 381 20 20 75.4 7.4789 32.4714 25.3881 57.3 6.48 282.3 0.660 -99.0000 0 6.539 284.7 0 10.20 6 1.080 6 7.20 6 380 19 19 100.3 6.9611 32.7122 25.6480 58.8 5.89 256.2 0.187 -99.0000 0 5.933 258.3 2 14.90 0 1.310 0 14.70 0 379 18 18 124.9 6.9844 33.3113 26.1166 59.2 4.52 196.7 0.120 -99.0000 0 4.531 197.1 36 22.60 3 1.690 3 28.00 3 378 17 17 150.3 6.8489 33.6725 26.4194 59.2 3.78 164.5 0.108 -99.0000 0 3.789 164.8 0 26.90 0 1.920 0 37.30 0 377 16 16 175.0 6.6369 33.8059 26.5529 59.1 3.48 151.5 0.102 -99.0000 0 3.507 152.5 0 29.20 0 2.050 0 43.30 0 376 15 15 200.4 6.2765 33.8571 26.6403 59.2 3.39 147.3 0.098 -99.0000 0 3.422 148.8 0 30.00 0 2.100 0 47.70 0 375 14 14 250.4 5.6946 33.8620 26.7170 59.1 2.96 128.6 0.099 -99.0000 0 3.018 131.2 0 32.60 0 2.290 0 56.00 0 374 13 13 300.8 5.2132 33.8977 26.8026 59.4 2.04 88.9 0.099 -99.0000 0 2.071 90.1 0 37.70 0 2.630 0 67.80 0 373 12 12 400.3 4.4991 33.9703 26.9403 59.6 1.28 55.5 0.091 -99.0000 0 1.289 56.0 0 41.30 0 2.910 0 85.30 2 372 11 11 600.5 3.9696 34.1488 27.1379 59.7 0.52 22.6 0.085 -99.0000 0 0.530 23.0 6 44.00 6 3.120 6 109.00 26 371 10 10 800.7 3.4820 34.2827 27.2930 59.8 0.33 14.5 0.087 -99.0000 0 0.335 14.6 0 44.70 0 3.200 0 128.40 2 370 9 9 1000.3 3.0731 34.3609 27.3940 59.9 0.31 13.7 0.090 34.3618 6 0.306 13.3 2 45.20 0 3.210 0 141.80 2 369 8 8 1250.1 2.6682 34.4381 27.4918 59.9 0.35 15.4 0.083 34.4380 6 0.335 14.6 2 45.30 0 3.210 0 155.00 2 368 7 7 1500.9 2.3937 34.4929 27.5591 60.0 0.52 22.5 0.079 34.4937 0 0.495 21.5 0 45.00 0 3.170 0 163.30 2 367 6 6 2001.0 1.9435 34.5837 27.6683 60.1 1.26 54.9 0.076 34.5851 6 1.248 54.2 0 43.20 0 3.020 0 172.20 2 366 5 5 2500.3 1.7347 34.6277 27.7197 60.1 1.88 81.9 0.077 34.6265 0 1.889 82.1 6 41.60 0 2.900 0 174.70 2 365 4 4 3000.5 1.5970 34.6524 27.7498 60.1 2.41 104.7 0.076 34.6536 6 2.420 105.1 0 40.10 0 2.790 0 174.00 2 364 3 3 3500.1 1.5643 34.6652 27.7625 59.9 2.67 116.0 0.074 -99.0000 9 2.691 116.9 0 39.00 0 2.720 0 173.80 2 363 2 2 3500.6 1.5643 34.6652 27.7625 59.9 2.67 116.1 0.074 34.6655 6 2.690 116.9 0 39.30 0 2.720 0 175.90 2 362 1 1 3685.3 1.5673 34.6677 27.7643 59.6 2.70 117.5 0.075 -99.0000 0 2.730 118.6 3 39.10 3 2.710 3 179.60 3