*2021/05/31 15:27:51.55 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2019/08/18 10:57:09.000 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 : E42D89F1 NUMBER OF CHANNELS : 23 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 344 367 2 Bottle_Number n/a 1 24 3 Bottle:Firing_Sequence n/a 1 24 4 Pressure:CTD dbar 5.1 3361.2 5 Temperature:CTD deg_C_(ITS90) 1.6222 17.2174 6 Salinity:CTD PSS-78 32.2995 34.6565 7 Sigma-t:CTD kg/m^3 23.4183 27.7512 8 Transmissivity:CTD:650 %/m 46.4 57.7 9 Transmissivity:CTD:530 %/m 66.5 89 10 Oxygen:Dissolved:CTD:Volume ml/l 0.26 6.67 11 Oxygen:Dissolved:CTD:Mass µmol/kg 11.2 290.6 12 Fluorescence:CTD:Seapoint mg/m^3 0.105 1.786 13 Salinity:Bottle PSS-78 32.2993 34.6554 14 Flag:Salinity:Bottle n/a 15 Nitrate_plus_Nitrite:Bottle µmol/l 1.22 1.22 16 Flag:Nitrate_plus_Nitrite:Bottle n/a 17 Phosphate:Bottle µmol/l 0.48 0.48 18 Flag:Phosphate:Bottle n/a 19 Silicate:Bottle µmol/l 0.45 0.45 20 Flag:Silicate:Bottle n/a 21 Chlorophyll:Extracted:Bottle mg/m^3 0.18 0.18 22 Flag:Chlorophyll:Extracted:Bottle n/a 23 Phaeo-Pigment:Extracted:Bottle mg/m^3 0.3E-01 0.3E-01 $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 ' ' 6 F ' ' 1 10 -99 ' ' 7 F ' ' 2 11 -99 ' ' 6 F ' ' 1 12 -99 ' ' 8 F ' ' 3 13 -99 ' ' 9 F R4 4 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 7 F R4 2 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 8 F R4 3 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 7 F R4 2 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 7 F R4 2 22 0 ' ' 3 NQ C ' ' 23 -99 ' ' 7 F R4 2 $END *ADMINISTRATION MISSION : 2019-008 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 : P14 EVENT NUMBER : 48 LATITUDE : 49 7.41000 N ! (deg min) LONGITUDE : 132 39.88000 W ! (deg min) WATER DEPTH : 3320 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item *COMMENTS Sample Number 348: SAL:Bottle - deleted 1st conductivity reading during salinity analysis. 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 13 - 25 days after collection. For details on duplicate analysis see file 2019-008_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 2019-008_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 2019-008_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 ~2 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 0.03-10.66 µg/l in 115 samples. Average %CV for this cruise was 2.80% with 0 out of 35 duplicate pairs having a CV > 10% and 0 duplicate pairs having a CV > 30%. Our average dataset %CV is 3.80% for 2013 - 2018 so the overall quality of this dataset is excellent. For details on duplicates see file 2019-008_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 Chromosil 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. DMS data are limited to 2 significant figures. Unless otherwise indicated the % relative difference between duplicates is < 20%. For more details see file 2019-008_DMS_report.pdf and for duplicate analysis see 2019-008_DMS.pdf. DMSP-D: Approximately 20-75 ml of seawater were allowed to flow directly from the Niskin into a magnetic filtration funnel containing a 0.7 µm GF/F filter. The first 3.5 ml were collected in a polypropylene tube (15 ml) containing 50 µl of a 50% sulphuric acid solution. A new funnel and filter were used for each sample. Samples were hydrolized and run at IOS when time permitted. DMSP-T: 3.5 ml of seawater were collected directly from the Niskin into a polypropylene tube (15 ml) 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. Unless otherwise indicated the % relative difference between duplicates is < 20%. For more details see file 2019-008_DMS_report.pdf and for duplicate analysis see 2019-008_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. There were 2 WetLabs CStar transmissometers in use during this cruise: Transmissometer:CTD:650 refers to sensor #1185DR (650nm - red) Transmissometer:CTD:530 refers to sensor #1883DG (530nm - green) For comparison with other Institute of Ocean Sciences cruises, note that the transmissometer wavelength is 650 nm unless otherwise stated. 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. For details on the processing see the report: 2019-008-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-- !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Trans Oxygen Oxyge Fluores Salinity Fl Nitrat Fl Phospha Fl Silica Fl Chloro Fl Phaeo- !le_ tt tt re:CTD ure:CTD :CTD CTD missi missi :Disso n:Dis cence: :Bottle ag e_plus ag te: ag te: ag phyll: ag Pigmen !Numb ~u ~u vity: vity: lved: solve CTD: ~o _Nitri ~o Bottle ~o Bottle ~o Extrac ~o t:Extr !er mb en CTD: CTD: CTD: d:CTD Seapoin tt te: tt tt tt ted: tt acted: ! er ce 650 530 Volume :Mass t le Bottle le le le Bottle le Bottle !---- -- -- ------ -------- -------- -------- ----- ----- ------ ----- ------- -------- -- ------ -- ------- -- ------ -- ------ -- ------ *END OF HEADER 367 24 24 5.1 17.2136 32.3006 23.4200 50.1 74.6 5.74 250.3 0.513 32.2999 0 1.22 0 0.480 0 0.45 0 0.18 6 0.03 366 23 23 10.5 17.2174 32.2995 23.4183 50.1 74.6 5.74 250.4 0.513 32.2993 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 365 22 22 25.7 14.0341 32.3639 24.1700 46.4 66.5 6.67 290.6 1.786 32.3619 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 364 21 21 49.4 9.4808 32.3552 24.9979 52.4 78.4 6.67 290.6 1.695 32.3574 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 363 20 20 75.3 8.6089 32.3999 25.1684 55.9 85.4 6.42 279.5 0.411 32.3987 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 362 19 19 99.7 7.8904 32.5737 25.4104 56.5 86.7 6.05 263.4 0.230 32.5729 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 361 18 18 125.2 7.3052 33.1134 25.9170 56.8 87.2 4.99 217.2 0.153 33.1050 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 360 17 17 151.3 7.3497 33.5650 26.2661 56.8 87.4 4.06 176.6 0.134 33.5583 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 359 16 16 174.7 7.4057 33.8146 26.4546 56.9 87.4 3.49 151.9 0.122 33.8115 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 358 15 15 200.8 7.1305 33.8805 26.5449 56.9 87.4 3.33 144.7 0.122 33.8791 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 357 14 14 251.1 6.4057 33.9033 26.6600 57.0 87.4 2.87 124.7 0.122 33.9020 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 356 13 13 299.8 5.7357 33.9053 26.7462 57.0 87.5 2.44 106.3 0.121 33.9058 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 355 12 12 401.6 4.9525 33.9461 26.8709 57.3 88.0 1.60 69.6 0.114 33.9444 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 354 11 11 599.1 4.2458 34.1241 27.0896 57.5 88.4 0.56 24.3 0.110 34.1257 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 353 10 10 800.9 3.6982 34.2530 27.2482 57.5 88.2 0.33 14.3 0.110 34.2516 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 352 9 9 1000.3 3.3397 34.3602 27.3685 57.5 88.2 0.26 11.2 0.110 34.3595 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 351 8 8 1250.9 2.7704 34.4316 27.4777 57.5 88.4 0.32 13.9 0.110 34.4293 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 350 7 7 1500.5 2.4236 34.4933 27.5569 57.6 88.5 0.50 21.9 0.110 34.4919 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 349 6 6 1749.7 2.1487 34.5467 27.6223 57.6 88.7 0.88 38.4 0.110 34.5486 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 348 5 5 2000.7 1.9606 34.5840 27.6672 57.7 88.8 1.27 55.1 0.110 34.5840 26 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 347 4 4 2000.7 1.9603 34.5841 27.6673 57.6 88.8 1.27 55.1 0.110 34.5839 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 346 3 3 2251.0 1.8271 34.6103 27.6987 57.7 89.0 1.61 70.0 0.109 34.6104 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 345 2 2 3000.3 1.6356 34.6494 27.7445 57.6 88.8 2.30 100.0 0.105 34.6500 6 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00 344 1 1 3361.2 1.6222 34.6565 27.7512 57.0 87.8 2.44 105.9 0.105 34.6554 0 -99.00 0 -99.000 0 -99.00 0 -99.00 0 -99.00